arXiv - PHYS - High Energy Physics - Experiment最新文献

{"title":"Defect recombination origin of low energy excess in semiconductor detectors","authors":"Kai Nordlund, Fanhao Kong, Flyura Djurabekova, Matti Heikinheimo, Kimmo Tuominen, Nader Mirabolfathi","doi":"arxiv-2408.07518","DOIUrl":"https://doi.org/arxiv-2408.07518","url":null,"abstract":"When the detection threshold in semiconductor detectors is pushed to\u0000increasingly low energies, an ``excess\" signal of apparent energy release\u0000events below a few hundred eV is observed in several different kinds of\u0000detectors, hindering their sensitivity for rare event signals in this energy\u0000range. Using atomistic simulations with classical thermostat and quantum\u0000thermal bath, we show that this kind of signal is consistent with energy\u0000release from long-term recombination events of complex defects that can be\u0000formed by any kind of nuclear recoil radiation events. The recombination events\u0000are shown to have a very similar exponential dependence of energy as that\u0000observed in experiments. By detailed analysis of recombination events, we show\u0000that crossing a low energy barrier ($lesssim$ 0.1 eV) can trigger larger\u0000energy releases in an avalanche-like effect. This explains why large energy\u0000release events can occur even down to cryogenic temperatures.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of the Drell--Yan forward-backward asymmetry and of the effective leptonic weak mixing angle in proton-proton collisions at $sqrt{s}$ = 13 TeV","authors":"CMS Collaboration","doi":"arxiv-2408.07622","DOIUrl":"https://doi.org/arxiv-2408.07622","url":null,"abstract":"The forward-backward asymmetry in Drell-Yan production and the effective\u0000leptonic electroweak mixing angle are measured in proton-proton collisions at\u0000$sqrt{s}$ = 13 TeV, collected by the CMS experiment and corresponding to an\u0000integrated luminosity of 138 fb$^{-1}$. The measurement uses both dimuon and\u0000dielectron events, and is performed as a function of the dilepton mass and\u0000rapidity. The unfolded angular coefficient $A_4$ is also extracted, as a\u0000function of the dilepton mass and rapidity. Using the CT18Z set of parton\u0000distribution functions, we obtain $sintheta^ell_text{eff}$ = 0.23157 $pm$\u00000.00031, where the uncertainty includes the experimental and theoretical\u0000contributions. The measured value agrees with the standard model fit result to\u0000global experimental data. This is the most precise $sintheta^ell_text{eff}$\u0000measurement at a hadron collider, with a precision comparable to the results\u0000obtained at LEP and SLD.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of neutrino oscillation parameters with the first six detection units of KM3NeT/ORCA","authors":"KM3NeT Collaboration, S. Aiello, A. Albert, A. R. Alhebsi, M. Alshamsi, S. Alves Garre, A. Ambrosone, F. Ameli, M. Andre, E. Androutsou, L. Aphecetche, M. Ardid, S. Ardid, H. Atmani, J. Aublin, F. Badaracco, L. Bailly-Salins, Z. Bardačová, B. Baret, A. Bariego-Quintana, Y. Becherini, M. Bendahman, F. Benfenati, M. Benhassi, M. Bennani, D. M. Benoit, E. Berbee, V. Bertin, C. Beyer, S. Biagi, M. Boettcher, D. Bonanno, J. Boumaaza, M. Bouta, M. Bouwhuis, C. Bozza, R. M. Bozza, H. Brânzaş, F. Bretaudeau, M. Breuhaus, R. Bruijn, J. Brunner, R. Bruno, E. Buis, R. Buompane, J. Busto, B. Caiffi, D. Calvo, A. Capone, F. Carenini, V. Carretero, T. Cartraud, P. Castaldi, V. Cecchini, S. Celli, L. Cerisy, M. Chabab, M. Chadolias, A. Chen, S. Cherubini, T. Chiarusi, M. Circella, R. Cocimano, J. A. B. Coelho, A. Coleiro, A. Condorelli, R. Coniglione, P. Coyle, A. Creusot, G. Cuttone, R. Dallier, Y. Darras, A. De Benedittis, B. De Martino, G. De Wasseige, V. Decoene, I. Del Rosso, L. S. Di Mauro, I. Di Palma, A. F. Díaz, D. Diego-Tortosa, C. Distefano, A. Domi, C. Donzaud, D. Dornic, E. Drakopoulou, D. Drouhin, J. -G. Ducoin, R. Dvornický, T. Eberl, E. Eckerová, A. Eddymaoui, T. van Eeden, M. Eff, D. van Eijk, I. El Bojaddaini, S. El Hedri, V. Ellajosyula, A. Enzenhöfer, G. Ferrara, M. D. Filipović, F. Filippini, D. Franciotti, L. A. Fusco, S. Gagliardini, T. Gal, J. García Méndez, A. Garcia Soto, C. Gatius Oliver, N. Geißelbrecht, E. Genton, H. Ghaddari, L. Gialanella, B. K. Gibson, E. Giorgio, I. Goos, P. Goswami, S. R. Gozzini, R. Gracia, C. Guidi, B. Guillon, M. Gutiérrez, C. Haack, H. van Haren, A. Heijboer, L. Hennig, J. J. Hernández-Rey, W. Idrissi Ibnsalih, G. Illuminati, D. Joly, M. de Jong, P. de Jong, B. J. Jung, G. Kistauri, C. Kopper, A. Kouchner, Y. Y. Kovalev, V. Kueviakoe, V. Kulikovskiy, R. Kvatadze, M. Labalme, R. Lahmann, M. Lamoureux, G. Larosa, C. Lastoria, A. Lazo, S. Le Stum, G. Lehaut, V. Lemaítre, E. Leonora, N. Lessing, G. Levi, M. Lindsey Clark, F. Longhitano, F. Magnani, J. Majumdar, L. Malerba, F. Mamedov, J. Mańczak, A. Manfreda, M. Marconi, A. Margiotta, A. Marinelli, C. Markou, L. Martin, M. Mastrodicasa, S. Mastroianni, J. Mauro, G. Miele, P. Migliozzi, E. Migneco, M. L. Mitsou, C. M. Mollo, L. Morales-Gallegos, G. Moretti, A. Moussa, I. Mozun Mateo, R. Muller, M. R. Musone, M. Musumeci, P. Napoli, S. Navas, A. Nayerhoda, C. A. Nicolau, B. Nkosi, B. Ó Fearraigh, V. Oliviero, A. Orlando, E. Oukacha, D. Paesani, J. Palacios González, G. Papalashvili, V. Parisi, E. J. Pastor Gomez, A. M. Păun, G. E. Păvălaş, I. Pelegris, S. Peña Martínez, M. Perrin-Terrin, V. Pestel, R. Pestes, P. Piattelli, A. Plavin, C. Poirè, V. Popa, T. Pradier, J. Prado, S. Pulvirenti, C. A. Quiroz-Rangel, U. Rahaman, N. Randazzo, S. Razzaque, I. C. Rea, D. Real, G. Riccobene, J. Robinson, A. Romanov, E. Ros, A. Šaina, F. Salesa Greus, D. F. E. Samtleben, A. Sánchez Losa, S. Sanfilippo, M. Sanguineti, D. Santonocito, P. Sapienza, J. Schnabel, J. Schumann, H. M. Schutte, J. Seneca, N. Sennan, B. Setter, I. Sgura, R. Shanidze, A. Sharma, Y. Shitov, F. Šimkovic, A. Simonelli, A. Sinopoulou, B. Spisso, M. Spurio, D. Stavropoulos, I. Štekl, S. M. Stellacci, M. Taiuti, Y. Tayalati, H. Thiersen, S. Thoudam, P. de la Torre, I. Tosta e Melo, E. Tragia, B. Trocmé, V. Tsourapis, A. Tudorache, E. Tzamariudaki, A. Ukleja, A. Vacheret, V. Valsecchi, V. Van Elewyck, G. Vannoye, G. Vasileiadis, F. Vazquez de Sola, A. Veutro, S. Viola, D. Vivolo, A. van Vliet, H. Warnhofer, S. Weissbrod, E. de Wolf, I. Yvon, G. Zarpapis, S. Zavatarelli, A. Zegarelli, D. Zito, J. D. Zornoza, J. Zúñiga, N. Zywucka","doi":"arxiv-2408.07015","DOIUrl":"https://doi.org/arxiv-2408.07015","url":null,"abstract":"KM3NeT/ORCA is a water Cherenkov neutrino detector under construction and\u0000anchored at the bottom of the Mediterranean Sea. The detector is designed to\u0000study oscillations of atmospheric neutrinos and determine the neutrino mass\u0000ordering. This paper focuses on an initial configuration of ORCA, referred to\u0000as ORCA6, which comprises six out of the foreseen 115 detection units of\u0000photo-sensors. A high-purity neutrino sample was extracted, corresponding to an\u0000exposure of 433 kton-years. The sample of 5828 neutrino candidates is analysed\u0000following a binned log-likelihood method in the reconstructed energy and cosine\u0000of the zenith angle. The atmospheric oscillation parameters are measured to be\u0000$sin^2theta_{23}= 0.51^{+0.04}_{-0.05}$, and $ Delta m^2_{31} =\u00002.14^{+0.25}_{-0.35}times 10^{-3}~mathrm{eV^2} cup {-2.25,-1.76}times\u000010^{-3}~mathrm{eV^2}$ at 68% CL. The inverted neutrino mass ordering\u0000hypothesis is disfavoured with a p-value of 0.25.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent spectroscopy studies at Belle","authors":"Dmytro Meleshko, Elisabetta Prencipe, Jens Sören Lange","doi":"arxiv-2408.06064","DOIUrl":"https://doi.org/arxiv-2408.06064","url":null,"abstract":"The analyses of states with double $cs$ content and the search for exotics\u0000have recently gained much attention. The Belle experiment collected roughly 1\u0000ab$^{-1}$ integrated luminosity data. While Belle II data-taking is in\u0000progress, we have performed a new search for exotic states and cross-section\u0000measurements with the full Belle data sets. Here we review the recent analysis\u0000of: (a) $e^+e^-to D_s^{(*)+}+D_{sJ}^-$ + $c.c$. from both $Upsilon(2S)$\u0000decays and continuum production at 10.52 GeV, using the Belle detector at KEKB;\u0000(b) the analysis of $e^+e^- to eta_c J/psi$ + $c.c.$ and search for double\u0000charmonium states; (c) the study of $e^+e^- to D_s^+D_{s0}(2317)^-$ + $c.c.$\u0000and $e^+e^- to D_s^+D_{s1}(2460)^-$ + $c.c.$ + anything else, in the\u0000continuum. Born cross-sections are evaluated, and a possible confirmation of\u0000the states seen in the invariant mass system of $J/psiphi$ by LHCb in $B$\u0000decays has been investigated.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton$-$proton collisions at $sqrt{s}$ = 13 TeV with the ATLAS detector","authors":"ATLAS Collaboration","doi":"arxiv-2408.05000","DOIUrl":"https://doi.org/arxiv-2408.05000","url":null,"abstract":"A search for heavy right-handed Majorana neutrinos is performed with the\u0000ATLAS detector at the CERN Large Hadron Collider, using the 140\u0000$mathrm{fb}^{-1}$ of proton$-$proton collision data at $sqrt{s}$ = 13 TeV\u0000collected during Run 2. This search targets $tbar{t}$ production, in which\u0000both top quarks decay into a bottom quark and a $W$ boson, where one of the $W$\u0000bosons decays hadronically and the other decays into an electron or muon and a\u0000heavy neutral lepton. The heavy neutral lepton is identified through a decay\u0000into an electron or muon and another $W$ boson, resulting in a pair of\u0000same-charge same-flavor leptons in the final state. This paper presents the\u0000first search for heavy neutral leptons in the mass range of 15$-$75 GeV using\u0000$tbar{t}$ events. No significant excess is observed over the background\u0000expectation, and upper limits are placed on the signal cross-sections. Assuming\u0000a benchmark scenario of the phenomenological type-I seesaw model, these\u0000cross-section limits are then translated into upper limits on the mixing\u0000parameters of the heavy Majorana neutrino with Standard Model neutrinos.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pay Attention To Mean Fields For Point Cloud Generation","authors":"Benno Käch, Isabell Melzer-Pellmann, Dirk Krücker","doi":"arxiv-2408.04997","DOIUrl":"https://doi.org/arxiv-2408.04997","url":null,"abstract":"Collider data generation with machine learning has become increasingly\u0000popular in particle physics due to the high computational cost of conventional\u0000Monte Carlo simulations, particularly for future high-luminosity colliders. We\u0000propose a generative model for point clouds that employs an attention-based\u0000aggregation while preserving a linear computational complexity with respect to\u0000the number of points. The model is trained in an adversarial setup, ensuring\u0000input permutation equivariance and invariance for the generator and critic,\u0000respectively. To stabilize known unstable adversarial training, a feature\u0000matching loss is introduced. We evaluate the performance on two different\u0000datasets. The former is the top-quark textsc{JetNet150} dataset, where the\u0000model outperforms the current state-of-the-art GAN-based model, despite having\u0000significantly fewer parameters. The latter is dataset 2 of the CaloChallenge,\u0000which comprises point clouds with up to $30times$ more points compared to the\u0000first dataset. The model and its corresponding code are available at\u0000url{https://github.com/kaechb/MDMA/tree/NeurIPS}.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Observation of muonic Dalitz decays of $χ_{b}$ mesons and precise spectroscopy of hidden-beauty states","authors":"LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, A. A. Adefisoye, B. Adeva, M. Adinolfi, P. Adlarson, C. Agapopoulou, C. A. Aidala, Z. Ajaltouni, S. Akar, K. Akiba, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, Z. Aliouche, P. Alvarez Cartelle, R. Amalric, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, P. Andreola, M. Andreotti, D. Andreou, A. Anelli, D. Ao, F. Archilli, M. Argenton, S. Arguedas Cuendis, A. Artamonov, M. Artuso, E. Aslanides, R. Ataíde Da Silva, M. Atzeni, B. Audurier, D. Bacher, I. Bachiller Perea, S. Bachmann, M. Bachmayer, J. J. Back, P. Baladron Rodriguez, V. Balagura, W. Baldini, L. Balzani, H. Bao, J. Baptista de Souza Leite, C. Barbero Pretel, M. Barbetti, I. R. Barbosa, R. J. Barlow, M. Barnyakov, S. Barsuk, W. Barter, M. Bartolini, J. Bartz, J. M. Basels, S. Bashir, G. Bassi, B. Batsukh, P. B. Battista, A. Bay, A. Beck, M. Becker, F. Bedeschi, I. B. Bediaga, N. B. Behling, S. Belin, V. Bellee, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, S. Bernet Andres, A. Bertolin, C. Betancourt, F. Betti, J. Bex, Ia. Bezshyiko, J. Bhom, M. S. Bieker, N. V. Biesuz, P. Billoir, A. Biolchini, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti, T. Blake, F. Blanc, J. E. Blank, S. Blusk, V. Bocharnikov, J. A. Boelhauve, O. Boente Garcia, T. Boettcher, A. Bohare, A. Boldyrev, C. S. Bolognani, R. Bolzonella, N. Bondar, A. Bordelius, F. Borgato, S. Borghi, M. Borsato, J. T. Borsuk, S. A. Bouchiba, M. Bovill, T. J. V. Bowcock, A. Boyer, C. Bozzi, A. Brea Rodriguez, N. Breer, J. Brodzicka, A. Brossa Gonzalo, J. Brown, D. Brundu, E. Buchanan, A. Buonaura, L. Buonincontri, A. T. Burke, C. Burr, J. S. Butter, J. Buytaert, W. Byczynski, S. Cadeddu, H. Cai, A. C. Caillet, R. Calabrese, S. Calderon Ramirez, L. Calefice, S. Cali, M. Calvi, M. Calvo Gomez, P. Camargo Magalhaes, J. I. Cambon Bouzas, P. Campana, D. H. Campora Perez, A. F. Campoverde Quezada, S. Capelli, L. Capriotti, R. Caravaca-Mora, A. Carbone, L. Carcedo Salgado, R. Cardinale, A. Cardini, P. Carniti, L. Carus, A. Casais Vidal, R. Caspary, G. Casse, J. Castro Godinez, M. Cattaneo, G. Cavallero, V. Cavallini, S. Celani, D. Cervenkov, S. Cesare, A. J. Chadwick, I. Chahrour, M. Charles, Ph. Charpentier, E. Chatzianagnostou, M. Chefdeville, C. Chen, S. Chen, Z. Chen, A. Chernov, S. Chernyshenko, X. Chiotopoulos, V. Chobanova, S. Cholak, M. Chrzaszcz, A. Chubykin, V. Chulikov, P. Ciambrone, X. Cid Vidal, G. Ciezarek, P. Cifra, P. E. L. Clarke, M. Clemencic, H. V. Cliff, J. Closier, C. Cocha Toapaxi, V. Coco, J. Cogan, E. Cogneras, L. Cojocariu, P. Collins, T. Colombo, M. C. Colonna, A. Comerma-Montells, L. Congedo, A. Contu, N. Cooke, I. Corredoira, A. Correia, G. Corti, J. J. Cottee Meldrum, B. Couturier, D. C. Craik, M. Cruz Torres, E. Curras Rivera, R. Currie, C. L. Da Silva, S. Dadabaev, L. Dai, X. Dai, E. Dall'Occo, J. Dalseno, C. D'Ambrosio, J. Daniel, A. Danilina, P. d'Argent, A. Davidson, J. E. Davies, A. Davis, O. De Aguiar Francisco, C. De Angelis, F. De Benedetti, J. de Boer, K. De Bruyn, S. De Capua, M. De Cian, U. De Freitas Carneiro Da Graca, E. De Lucia, J. M. De Miranda, L. De Paula, M. De Serio, P. De Simone, F. De Vellis, J. A. de Vries, F. Debernardis, D. Decamp, V. Dedu, S. Dekkers, L. Del Buono, B. Delaney, H. -P. Dembinski, J. Deng, V. Denysenko, O. Deschamps, F. Dettori, B. Dey, P. Di Nezza, I. Diachkov, S. Didenko, S. Ding, L. Dittmann, V. Dobishuk, A. D. Docheva, C. Dong, A. M. Donohoe, F. Dordei, A. C. dos Reis, A. D. Dowling, W. Duan, P. Duda, M. W. Dudek, L. Dufour, V. Duk, P. Durante, M. M. Duras, J. M. Durham, O. D. Durmus, A. Dziurda, A. Dzyuba, S. Easo, E. Eckstein, U. Egede, A. Egorychev, V. Egorychev, S. Eisenhardt, E. Ejopu, L. Eklund, M. Elashri, J. Ellbracht, S. Ely, A. Ene, E. Epple, J. Eschle, S. Esen, T. Evans, F. Fabiano, L. N. Falcao, Y. Fan, B. Fang, L. Fantini, M. Faria, K. Farmer, D. Fazzini, L. Felkowski, M. Feng, M. Feo, A. Fernandez Casani, M. Fernandez Gomez, A. D. Fernez, F. Ferrari, F. Ferreira Rodrigues, M. Ferrillo, M. Ferro-Luzzi, S. Filippov, R. A. Fini, M. Fiorini, M. Firlej, K. L. Fischer, D. S. Fitzgerald, C. Fitzpatrick, T. Fiutowski, F. Fleuret, M. Fontana, L. F. Foreman, R. Forty, D. Foulds-Holt, V. Franco Lima, M. Franco Sevilla, M. Frank, E. Franzoso, G. Frau, C. Frei, D. A. Friday, J. Fu, Q. Fuehring, Y. Fujii, T. Fulghesu, E. Gabriel, G. Galati, M. D. Galati, A. Gallas Torreira, D. Galli, S. Gambetta, M. Gandelman, P. Gandini, B. Ganie, H. Gao, R. Gao, T. Q. Gao, Y. Gao, Y. Gao, Y. Gao, M. Garau, L. M. Garcia Martin, P. Garcia Moreno, J. García Pardiñas, K. G. Garg, L. Garrido, C. Gaspar, R. E. Geertsema, L. L. Gerken, E. Gersabeck, M. Gersabeck, T. Gershon, S. G. Ghizzo, Z. Ghorbanimoghaddam, L. Giambastiani, F. I. Giasemis, V. Gibson, H. K. Giemza, A. L. Gilman, M. Giovannetti, A. Gioventù, L. Girardey, P. Gironella Gironell, C. Giugliano, M. A. Giza, E. L. Gkougkousis, F. C. Glaser, V. V. Gligorov, C. Göbel, E. Golobardes, D. Golubkov, A. Golutvin, A. Gomes, S. Gomez Fernandez, F. Goncalves Abrantes, M. Goncerz, G. Gong, J. A. Gooding, I. V. Gorelov, C. Gotti, J. P. Grabowski, L. A. Granado Cardoso, E. Graugés, E. Graverini, L. Grazette, G. Graziani, A. T. Grecu, L. M. Greeven, N. A. Grieser, L. Grillo, S. Gromov, C. Gu, M. Guarise, L. Guerry, M. Guittiere, V. Guliaeva, P. A. Günther, A. -K. Guseinov, E. Gushchin, Y. Guz, T. Gys, K. Habermann, T. Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, J. Haimberger, M. Hajheidari, G. H. Hallett, M. M. Halvorsen, P. M. Hamilton, J. Hammerich, Q. Han, X. Han, S. Hansmann-Menzemer, L. Hao, N. Harnew, M. Hartmann, S. Hashmi, J. He, F. Hemmer, C. Henderson, R. D. L. Henderson, A. M. Hennequin, K. Hennessy, L. Henry, J. Herd, P. Herrero Gascon, J. Heuel, A. Hicheur, G. Hijano Mendizabal, D. Hill, S. E. Hollitt, J. Horswill, R. Hou, Y. Hou, N. Howarth, J. Hu, J. Hu, W. Hu, X. Hu, W. Huang, W. Hulsbergen, R. J. Hunter, M. Hushchyn, D. Hutchcroft, M. Idzik, D. Ilin, P. Ilten, A. Inglessi, A. Iniukhin, A. Ishteev, K. Ivshin, R. Jacobsson, H. Jage, S. J. Jaimes Elles, S. Jakobsen, E. Jans, B. K. Jashal, A. Jawahery, V. Jevtic, E. Jiang, X. Jiang, Y. Jiang, Y. J. Jiang, M. John, A. John Rubesh Rajan, D. Johnson, C. R. Jones, T. P. Jones, S. Joshi, B. Jost, J. Juan Castella, N. Jurik, I. Juszczak, D. Kaminaris, S. Kandybei, M. Kane, Y. Kang, C. Kar, M. Karacson, D. Karpenkov, A. Kauniskangas, J. W. Kautz, M. K. Kazanecki, F. Keizer, M. Kenzie, T. Ketel, B. Khanji, A. Kharisova, S. Kholodenko, G. Khreich, T. Kirn, V. S. Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, K. Klimaszewski, M. R. Kmiec, S. Koliiev, L. Kolk, A. Konoplyannikov, P. Kopciewicz, P. Koppenburg, M. Korolev, I. Kostiuk, O. Kot, S. Kotriakhova, A. 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T'Jampens, M. Tobin, L. Tomassetti, G. Tonani, X. Tong, D. Torres Machado, L. Toscano, D. Y. Tou, C. Trippl, G. Tuci, N. Tuning, L. H. Uecker, A. Ukleja, D. J. Unverzagt, E. Ursov, A. Usachov, A. Ustyuzhanin, U. Uwer, V. Vagnoni, V. Valcarce Cadenas, G. Valenti, N. Valls Canudas, H. Van Hecke, E. van Herwijnen, C. B. Van Hulse, R. Van Laak, M. van Veghel, G. Vasquez, R. Vazquez Gomez, P. Vazquez Regueiro, C. Vázquez Sierra, S. Vecchi, J. J. Velthuis, M. Veltri, A. Venkateswaran, M. Verdoglia, M. Vesterinen, D. Vico Benet, P. V. Vidrier Villalba, M. Vieites Diaz, X. Vilasis-Cardona, E. Vilella Figueras, A. Villa, P. Vincent, F. C. Volle, D. vom Bruch, N. Voropaev, K. Vos, G. Vouters, C. Vrahas, J. Wagner, J. Walsh, E. J. Walton, G. Wan, C. Wang, G. Wang, J. Wang, J. Wang, J. Wang, J. Wang, M. Wang, N. W. Wang, R. Wang, X. Wang, X. Wang, X. W. Wang, Y. Wang, Z. Wang, Z. Wang, Z. Wang, J. A. Ward, M. Waterlaat, N. K. Watson, D. Websdale, Y. Wei, J. Wendel, B. D. C. Westhenry, C. White, M. Whitehead, E. Whiter, A. R. Wiederhold, D. Wiedner, G. Wilkinson, M. K. Wilkinson, M. Williams, M. R. J. Williams, R. Williams, Z. Williams, F. F. Wilson, W. Wislicki, M. Witek, L. Witola, G. Wormser, S. A. Wotton, H. Wu, J. Wu, Y. Wu, Z. Wu, K. Wyllie, S. Xian, Z. Xiang, Y. Xie, A. Xu, J. Xu, L. Xu, L. Xu, M. Xu, Z. Xu, Z. Xu, Z. Xu, D. Yang, K. Yang, S. Yang, X. Yang, Y. Yang, Z. Yang, Z. Yang, V. Yeroshenko, H. Yeung, H. Yin, C. Y. Yu, J. Yu, X. Yuan, Y Yuan, E. Zaffaroni, M. Zavertyaev, M. Zdybal, F. Zenesini, C. Zeng, M. Zeng, C. Zhang, D. Zhang, J. Zhang, L. Zhang, S. Zhang, S. Zhang, Y. Zhang, Y. Z. Zhang, Y. Zhao, A. Zharkova, A. Zhelezov, S. Z. Zheng, X. Z. Zheng, Y. Zheng, T. Zhou, X. Zhou, Y. Zhou, V. Zhovkovska, L. Z. Zhu, X. Zhu, X. Zhu, V. Zhukov, J. Zhuo, Q. Zou, D. Zuliani, G. Zunica","doi":"arxiv-2408.05134","DOIUrl":"https://doi.org/arxiv-2408.05134","url":null,"abstract":"The decays of the $chi_{b1}(1P)$, $chi_{b2}(1P)$, $chi_{b1}(2P)$ and\u0000$chi_{b2}(2P)$~mesons into the~$Upsilon(1S)mu^+mu^-$ final state are\u0000observed with a high significance using proton-proton collision data collected\u0000with the LHCb detector and corresponding to an integrated luminosity of\u00009fb$^{-1}$. The newly observed decays together with the\u0000$Upsilon(2S)rightarrow Upsilon(1S)pi^+pi^-$ and $Upsilon(3S)rightarrow\u0000Upsilon(2S)pi^+pi^-$ decay modes are used for precision measurements of the\u0000mass and mass splittings for the hidden-beauty states.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"15 Suppl 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the dynamics of the decay $D^{+}to K_{S}^{0} π^{0} e^{+}ν_{e}$","authors":"BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, O. Afedulidis, X. C. Ai, R. Aliberti, A. Amoroso, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, H. -R. Bao, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, X. Y. Chai, J. F. Chang, G. R. Che, G. Chelkov, C. Chen, C. H. Chen, Chao Chen, G. Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, S. L. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, Z. Y. Chen, S. K. Choi, G. Cibinetto, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, C. Q. Deng, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Y. Y. Duan, Z. H. Duan, P. Egorov, Y. H. Fan, J. Fang, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, Y. Q. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, Y. T. Feng, M. Fritsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, X. B. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, L. Ge, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A. Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, J. Gutierrez, K. L. Han, T. T. Han, F. Hanisch, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, B. Y. Hu, H. M. Hu, J. F. Hu, S. L. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, Y. S. Huang, T. Hussain, F. Hölzken, N. Hüsken, N. in der Wiesche, J. Jackson, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, W. 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Zhao, J. Z. Zhao, L. Zhao, Lei Zhao, M. G. Zhao, N. Zhao, R. P. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, B. M. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, J. Y. Zhou, L. P. Zhou, S. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, Z. C. Zhou, A. N. Zhu, J. Zhu, K. Zhu, K. J. Zhu, K. S. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, T. J. Zhu, W. D. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, J. Zu","doi":"arxiv-2408.04422","DOIUrl":"https://doi.org/arxiv-2408.04422","url":null,"abstract":"The branching fraction of $D^+to K_{S}^{0} pi^{0}e^+nu_e$ is measured for\u0000the first time using $7.93~mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data\u0000collected at the center-of-mass energy $sqrt{s}=3.773$~GeV with the BESIII\u0000detector operating at the BEPCII collider, and is determined to be ${mathcal\u0000B}$($D^+to K_S^0pi^0e^+nu_e$) = $(0.881~pm~0.017_{rm stat.}~pm~0.016_{rm\u0000syst.})$%. Based on an analysis of the $D^+to K_S^0pi^0e^+nu_e$ decay\u0000dynamics, we observe the $Stext{-}{rm wave}$ and $P$-wave components with\u0000fractions of $f_{Stext{-}{rm wave}}$ = $(6.13~pm~0.27_{rm stat.}~pm\u0000~0.30_{rm syst.})%$ and $f_{bar K^{*}(892)^0}$ = $(93.88~pm~0.27_{rm\u0000stat.}~pm~0.29_{rm syst.})$%, respectively. From these results, we obtain\u0000the branching fractions ${mathcal B}$($D^+to (K_S^0pi^0)_{Stext{-}{rm\u0000wave}}~e^+nu_e$) = $(5.41~pm~0.35_{rm stat.}~pm~0.37_{rm\u0000syst.})times10^{-4}$ and ${mathcal B}$($D^+to bar K^{*}(892)^0e^+nu_e$) =\u0000$(4.97~pm~0.11_{rm stat.}~pm~0.12_{rm syst.})$%. In addition, the hadronic\u0000form-factor ratios of $D^{+} to bar {K}^{*}(892)^0e^+nu_e$ at $q^2=0$,\u0000assuming a single-pole dominance parameterization, are determined to be\u0000$r_V=frac{V(0)}{A_1(0)}= 1.43~pm~0.07_{rm stat.}~pm~0.03_{rm syst.}$ and\u0000$r_2=frac{A_2(0)}{A_1(0)}=0.72~pm~0.06_{rm stat.}~pm~0.02_{rm syst.}$.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heavy flavor spectroscopy studies at CMS","authors":"Feng Zhu, Kai Yi","doi":"arxiv-2408.04557","DOIUrl":"https://doi.org/arxiv-2408.04557","url":null,"abstract":"The CMS Collaboration has performed many studies in the field of heavy flavor\u0000spectroscopy. In this report, recent studies on exotic resonances in\u0000proton-proton collisions at $sqrt{s} = 13$ TeV at CMS are presented. For the\u0000exotic hadrons, these results include the first evidence for X(3872) in\u0000heavy-ion collisions and three new structures in $J/psi J/psi$ mass spectrum.\u0000Beside the exotic hadrons, we also found new decay channels in conventional\u0000beauty hadrons, including $B^{0}_{s}rightarrowpsi(2S)K^{0}_{S}$,\u0000$Lambda_{b}^{0}rightarrow J/psiXi^{-}K^{+} $, $B^{0} rightarrow\u0000psi(2S)K^{0}_{S}pi^{+} pi^{-}$, and $Xi_{b}^{-} rightarrow\u0000psi(2S)Xi^{-}$.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Multi-Scale Cognitive Interaction Model of Instrument Operations at the Linac Coherent Light Source","authors":"Jonathan Segal, Wan-Lin Hu, Paul Fuoss, Frank E. Ritter, Jeff Shrager","doi":"arxiv-2408.04734","DOIUrl":"https://doi.org/arxiv-2408.04734","url":null,"abstract":"We describe a novel multi-agent, multi-scale computational cognitive\u0000interaction model of instrument operations at the Linac Coherent Light Source\u0000(LCLS). A leading scientific user facility, LCLS is the world's first hard\u0000x-ray free electron laser, operated by the SLAC National Accelerator Laboratory\u0000for the U.S. Department of Energy. As the world's first x-ray free electron\u0000laser, LCLS is in high demand and heavily oversubscribed. Our overall project\u0000employs cognitive engineering methodologies to improve experimental efficiency\u0000and scientific productivity by refining experimental interfaces and workflows,\u0000simplifying tasks, reducing errors, and improving operator safety and stress\u0000levels. Our model simulates aspects of human cognition at multiple cognitive\u0000and temporal scales, ranging from seconds to hours, and among agents playing\u0000multiple roles, including instrument operator, real time data analyst, and\u0000experiment manager. The model can predict impacts stemming from proposed\u0000changes to operational interfaces and workflows. Because the model code is open\u0000source, and supplemental videos go into detail on all aspects of the model and\u0000results, this approach could be applied to other experimental apparatus and\u0000processes. Example results demonstrate the model's potential in guiding\u0000modifications to improve operational efficiency and scientific output. We\u0000discuss the implications of our findings for cognitive engineering in complex\u0000experimental settings and outline future directions for research.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":"363 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}