M. Bajdel, Kshitij Agarwal, U. Frankenfeld, J. Heuser, S. Mehta, H. Schmidt, P. Zumbruch
{"title":"Solutions for humidity and temperature monitoring in the Silicon Tracking System of Compressed Baryonic Matter Experiment: Sensors, Testing and DCS integration","authors":"M. Bajdel, Kshitij Agarwal, U. Frankenfeld, J. Heuser, S. Mehta, H. Schmidt, P. Zumbruch","doi":"10.22323/1.419.0003","DOIUrl":"https://doi.org/10.22323/1.419.0003","url":null,"abstract":"","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114064972","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":"CBM performance for the measurement of (multi)strange hadrons’ anisotropic flow in Au+Au collisions at FAIR","authors":"O. Lubynets, I. Selyuzhenkov","doi":"10.22323/1.419.0034","DOIUrl":"https://doi.org/10.22323/1.419.0034","url":null,"abstract":"","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115354826","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":"Characterising the hot and dense fireball with virtual photons at HADES","authors":"N. Schild","doi":"10.22323/1.419.0053","DOIUrl":"https://doi.org/10.22323/1.419.0053","url":null,"abstract":"","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130309269","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":"Statistical Thermodynamics within Hadron resonance gas (HRG) model including magnetic field at the CBM Experiment","authors":"Mahmoud Hanafy Nasar, Salma Gamal, Hayam Abo swan, Abdel Nasser Tawfik","doi":"10.22323/1.419.0039","DOIUrl":"https://doi.org/10.22323/1.419.0039","url":null,"abstract":"","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126398875","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}
GyHozHo Kov'acs, P'eter Kov'acs, P. M. Lo, K. Redlich, Gyorgy Wolf
Contrary to field theoretical calculations in the thermodynamic limit where the volume is assumed to be infinitely large, the heavy-ion collisions always carry the effects of finite size. A sufficiently small system size is expected to affect the thermodynamic quantities and the phase diagram of the strongly interacting matter. To study these effects one can take into account the finite spatial extent of the system within the framework of an effective model too, via the restriction of the momentum integrals using discretization or in a simplified case using a low momentum cutoff. We investigated the effects of the finite volume in a vector meson extended Polyakov quark-meson model and found a remarkable change in the thermodynamics and the phase transition, especially in the location of the critical endpoint.
{"title":"Finite volume effects in the extended linear sigma model via low momentum cutoff","authors":"GyHozHo Kov'acs, P'eter Kov'acs, P. M. Lo, K. Redlich, Gyorgy Wolf","doi":"10.22323/1.419.0029","DOIUrl":"https://doi.org/10.22323/1.419.0029","url":null,"abstract":"Contrary to field theoretical calculations in the thermodynamic limit where the volume is assumed to be infinitely large, the heavy-ion collisions always carry the effects of finite size. A sufficiently small system size is expected to affect the thermodynamic quantities and the phase diagram of the strongly interacting matter. To study these effects one can take into account the finite spatial extent of the system within the framework of an effective model too, via the restriction of the momentum integrals using discretization or in a simplified case using a low momentum cutoff. We investigated the effects of the finite volume in a vector meson extended Polyakov quark-meson model and found a remarkable change in the thermodynamics and the phase transition, especially in the location of the critical endpoint.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127341491","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}
In this contribution, we summarize a truncation-independent method to compute the equation of state within nonperturbative functional approaches. After demonstrating its viability, the method is applied to solutions obtained from a set of truncated Dyson-Schwinger equations for the quark and gluon propagators of (2+1)-flavor QCD to obtain thermodynamic quantities across the phase diagram of strong-interaction matter.
{"title":"QCD’s equation of state from Dyson-Schwinger equations","authors":"Philipp Isserstedt, C. Fischer, T. Steinert","doi":"10.22323/1.419.0024","DOIUrl":"https://doi.org/10.22323/1.419.0024","url":null,"abstract":"In this contribution, we summarize a truncation-independent method to compute the equation of state within nonperturbative functional approaches. After demonstrating its viability, the method is applied to solutions obtained from a set of truncated Dyson-Schwinger equations for the quark and gluon propagators of (2+1)-flavor QCD to obtain thermodynamic quantities across the phase diagram of strong-interaction matter.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"130 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124952408","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}
We summarize recent results on the volume dependence of the location of the critical endpoint in the QCD phase diagram. To this end, we employ a sophisticated combination of Lattice Yang--Mills theory and a (truncated) version of Dyson--Schwinger equations in Landau gauge for $2 + 1$ quark flavours. We study this system at small and intermediate volumes and determine the dependence of the location of the critical endpoint on the boundary conditions and the volume of a three-dimensional cube with edge length $L$. We also discuss recent results on baryon number fluctuations in this setup.
{"title":"Critical Endpoint of QCD and Baryon Number Fluctuations in a Finite Volume","authors":"Juliane Bernhardt, C. Fischer, Philipp Isserstedt","doi":"10.22323/1.419.0066","DOIUrl":"https://doi.org/10.22323/1.419.0066","url":null,"abstract":"We summarize recent results on the volume dependence of the location of the critical endpoint in the QCD phase diagram. To this end, we employ a sophisticated combination of Lattice Yang--Mills theory and a (truncated) version of Dyson--Schwinger equations in Landau gauge for $2 + 1$ quark flavours. We study this system at small and intermediate volumes and determine the dependence of the location of the critical endpoint on the boundary conditions and the volume of a three-dimensional cube with edge length $L$. We also discuss recent results on baryon number fluctuations in this setup.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124701572","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}
Quenched QCD at zero baryonic chemical potential undergoes a first-order deconfinement phase transition at a critical temperature $T_c$, which is related to the spontaneous breaking of the global center symmetry. The center symmetry is broken explicitly by including dynamical quarks, which weaken the first-order phase transition for decreasing quark masses. At a certain critical quark mass, which corresponds to the $Z(2)$-critical point, the first-order phase transition turns into a smooth crossover. We investigate the $Z(2)$-critical quark mass for $N_text{f}=2$ staggered fermions on $N_tau=8, 10$ lattices, where larger $N_tau$ correspond to finer lattices. Monte-Carlo simulations are performed for several quark mass values and aspect ratios in order to extrapolate to the thermodynamic limit. We present final results for $N_tau=8$ and preliminary results for $N_tau=10$ for the critical mass, which are obtained from fitting to a kurtosis finite size scaling formula of the absolute value of the Polyakov loop.
{"title":"Approaching the Continuum Limit of the Deconfinement Critical Point for $N_f=2$ Staggered Fermions","authors":"R. Kaiser, O. Philipsen","doi":"10.22323/1.419.0025","DOIUrl":"https://doi.org/10.22323/1.419.0025","url":null,"abstract":"Quenched QCD at zero baryonic chemical potential undergoes a first-order deconfinement phase transition at a critical temperature $T_c$, which is related to the spontaneous breaking of the global center symmetry. The center symmetry is broken explicitly by including dynamical quarks, which weaken the first-order phase transition for decreasing quark masses. At a certain critical quark mass, which corresponds to the $Z(2)$-critical point, the first-order phase transition turns into a smooth crossover. We investigate the $Z(2)$-critical quark mass for $N_text{f}=2$ staggered fermions on $N_tau=8, 10$ lattices, where larger $N_tau$ correspond to finer lattices. Monte-Carlo simulations are performed for several quark mass values and aspect ratios in order to extrapolate to the thermodynamic limit. We present final results for $N_tau=8$ and preliminary results for $N_tau=10$ for the critical mass, which are obtained from fitting to a kurtosis finite size scaling formula of the absolute value of the Polyakov loop.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122046841","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}
ALICE (A Large Ion Collider Experiment) at the CERN Large Hadron Collider (LHC) is designed to study proton-proton and heavy-ion collisions at ultra-relativistic energies. The main goal of the experiment is to assess the properties of quark gluon plasma, a state of matter where quarks and gluons are de-confined, reached in extreme conditions of temperature and energy density. During the ongoing long shutdown 2 of LHC, ALICE is undergoing a major upgrade of its apparatus, in view of the LHC Run 3, scheduled to start in 2022. The upgrade will allow a new ambitious programme of high-precision measurements to be deployed. Moreover, the detectors will have to cope with an increased collision rate, which will go up to 50 kHz in Pb-Pb collisions. For the muon spectrometer (MS) ALICE is implementing new hardware and software solutions. The installation of a new vertex tracker, the Muon Forward Tracker (MFT), in the acceptance of the MS will improve present measurements and enable new ones. It will allow one to separate, for the first time in ALICE in the forward-rapidity region, the prompt and non-prompt contributions to the cross-sections of charmonia. The matching of the muon tracks reconstructed in the MFT with those in the MS will add vertexing capabilities covering a broad range of transverse momenta down to pT = 0 and will improve significantly the invariant mass resolution, allowing for a better separation of the J/psi and psi(2S) states. In addition, the front-end and readout electronics of the muon tracking system (cathode pad chambers) and of the muon identification system (resistive plate chambers) will be upgraded, in order to optimize the detector performance in the new running conditions. A detailed description of the MS upgrades, together with the results from the commissioning with cosmic rays and the first LHC beams, will be presented in this talk.
{"title":"Upgrade and commissioning of the ALICE muon spectrometer","authors":"L. Terlizzi","doi":"10.22323/1.419.0060","DOIUrl":"https://doi.org/10.22323/1.419.0060","url":null,"abstract":"ALICE (A Large Ion Collider Experiment) at the CERN Large Hadron Collider (LHC) is designed to study proton-proton and heavy-ion collisions at ultra-relativistic energies. The main goal of the experiment is to assess the properties of quark gluon plasma, a state of matter where quarks and gluons are de-confined, reached in extreme conditions of temperature and energy density. During the ongoing long shutdown 2 of LHC, ALICE is undergoing a major upgrade of its apparatus, in view of the LHC Run 3, scheduled to start in 2022. The upgrade will allow a new ambitious programme of high-precision measurements to be deployed. Moreover, the detectors will have to cope with an increased collision rate, which will go up to 50 kHz in Pb-Pb collisions. For the muon spectrometer (MS) ALICE is implementing new hardware and software solutions. The installation of a new vertex tracker, the Muon Forward Tracker (MFT), in the acceptance of the MS will improve present measurements and enable new ones. It will allow one to separate, for the first time in ALICE in the forward-rapidity region, the prompt and non-prompt contributions to the cross-sections of charmonia. The matching of the muon tracks reconstructed in the MFT with those in the MS will add vertexing capabilities covering a broad range of transverse momenta down to pT = 0 and will improve significantly the invariant mass resolution, allowing for a better separation of the J/psi and psi(2S) states. In addition, the front-end and readout electronics of the muon tracking system (cathode pad chambers) and of the muon identification system (resistive plate chambers) will be upgraded, in order to optimize the detector performance in the new running conditions. A detailed description of the MS upgrades, together with the results from the commissioning with cosmic rays and the first LHC beams, will be presented in this talk.","PeriodicalId":240154,"journal":{"name":"Proceedings of FAIR next generation scientists - 7th Edition Workshop — PoS(FAIRness2022)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128612050","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}
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