Pub Date : 2020-03-01DOI: 10.1142/9789811207402_0028
L. Henry, D. Marangotto, A. Merli, N. Neri, J. Ruiz, F. M. Vidal
Permanent electric dipole moments (EDMs) of fundamental particles provide powerful probes for physics beyond the Standard Model. We propose to search for the EDM of strange and charm baryons at LHC, extending the ongoing experimental program on the neutron, muon, atoms, molecules and light nuclei. The EDM of strange $Λ$ baryons, selected from weak decays of charm baryons produced in $pp$ collisions at LHC, can be determined by studying the spin precession in the magnetic field of the detector tracking system. A test of $CPT$ symmetry can be performed by measuring the magnetic dipole moment of $Λ$ and $overline{Λ}$ baryons. For short-lived $Λ_{c}^{+}$ and $Ξ_{c}^{+}$ baryons, to be produced in a fixed-target experiment using the 7 TeV LHC beam and channeled in a bent crystal, the spin precession is induced by the intense electromagnetic field between crystal atomic planes. The experimental layout based on the LHCb detector and the expected sensitivities in the coming years are discussed.
基本粒子的永久电偶极矩(edm)为标准模型之外的物理提供了强大的探测。我们建议在大型强子对撞机上寻找奇异重子和迷人重子的EDM，扩展正在进行的中子、介子、原子、分子和轻核的实验项目。从大型强子对撞产生的粲重子弱衰变中选出的奇异重子Λ的EDM可以通过研究探测器跟踪系统磁场中的自旋进动来确定。通过测量$Λ$和$overline{Λ}$重子的磁偶极矩，可以检验$CPT$对称性。对于短寿命$Λ_{c}^{+}$和$Ξ_{c}^{+}$重子，在固定目标实验中使用7 TeV LHC束流并在弯曲晶体中引入，晶体原子平面之间的强电磁场诱导自旋进动。讨论了基于LHCb探测器的实验布局和未来几年的预期灵敏度。
{"title":"Search for New Physics via Baryon EDM at LHC","authors":"L. Henry, D. Marangotto, A. Merli, N. Neri, J. Ruiz, F. M. Vidal","doi":"10.1142/9789811207402_0028","DOIUrl":"https://doi.org/10.1142/9789811207402_0028","url":null,"abstract":"Permanent electric dipole moments (EDMs) of fundamental particles provide powerful probes for physics beyond the Standard Model. We propose to search for the EDM of strange and charm baryons at LHC, extending the ongoing experimental program on the neutron, muon, atoms, molecules and light nuclei. The EDM of strange $Λ$ baryons, selected from weak decays of charm baryons produced in $pp$ collisions at LHC, can be determined by studying the spin precession in the magnetic field of the detector tracking system. A test of $CPT$ symmetry can be performed by measuring the magnetic dipole moment of $Λ$ and $overline{Λ}$ baryons. For short-lived $Λ_{c}^{+}$ and $Ξ_{c}^{+}$ baryons, to be produced in a fixed-target experiment using the 7 TeV LHC beam and channeled in a bent crystal, the spin precession is induced by the intense electromagnetic field between crystal atomic planes. The experimental layout based on the LHCb detector and the expected sensitivities in the coming years are discussed.","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129672346","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}
Pub Date : 2020-03-01DOI: 10.1142/S2010194518600613
T. Luo
{"title":"CP Violation Sensitivity at the Belle II Experiment","authors":"T. Luo","doi":"10.1142/S2010194518600613","DOIUrl":"https://doi.org/10.1142/S2010194518600613","url":null,"abstract":"","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133480400","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}
Pub Date : 2020-03-01DOI: 10.1142/9789811207402_0040
Wenqi Yan, Jun Cao, Yufeng Li, Qian Liu, Z. Ning, Xilei Sun, L. Wen, Wenhuan Wu, L. Zhan
FR4 support Thick-GEM Physics motivation of a short baseline experiment with gas TPC • Precisely measure the energy spectrum of reactor antineutrinos • High precision reactor spectrum 1% • Input for JUNO Energy resolution:Daya Bay ~8%,JUNO 3% • Weak mixing angle θw • Abnormal neutrino magnetic moment • Sterile neutrino Reactor Neutrino Energy Spectrum Measurement with a High Pressure Gas TPC Detector
{"title":"The Reactor Neutrino Energy Spectrum Measurement with a High Pressure Gas TPC Detector","authors":"Wenqi Yan, Jun Cao, Yufeng Li, Qian Liu, Z. Ning, Xilei Sun, L. Wen, Wenhuan Wu, L. Zhan","doi":"10.1142/9789811207402_0040","DOIUrl":"https://doi.org/10.1142/9789811207402_0040","url":null,"abstract":"FR4 support Thick-GEM Physics motivation of a short baseline experiment with gas TPC • Precisely measure the energy spectrum of reactor antineutrinos • High precision reactor spectrum 1% • Input for JUNO Energy resolution:Daya Bay ~8%,JUNO 3% • Weak mixing angle θw • Abnormal neutrino magnetic moment • Sterile neutrino Reactor Neutrino Energy Spectrum Measurement with a High Pressure Gas TPC Detector","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122809318","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}
Pub Date : 2020-03-01DOI: 10.1142/9789811207402_0021
A. Bakry, X. Chen, M. Deliyergiyev, S. Xu, P. Zhang, A. Galal, A. Khalaf
We compare the predictions of Nambu-Goto effective string model at two loop-order for the Casimir energy and the width of the quantum delocalization of the string to the corresponding quark-antiquark potential and width profile of the color tube in pure SU (3) Yang-Mills LGT at 4-dimensions near the deconfinement point. Minor corrections are returned, when considering NLO terms for both the Q ¯ Q potential and broadening of the color tube, at the temperature T/T c = 0 . 8. At a closer temperature to the critical point T/T c = 0 . 9, we found that the NLO contributions, from the expansion of the Nambu-Goto string, have a significant effect in improving the match to lattice data in the intermediate distances scales–before the string breaks in full QCD. The string’s self-interactions contributes in the suppressed broadening of the string’s width and the non-curved/squeezed profile along the string in the intermediate distance. color flux-tube, bosonic strings, Monte-Carlo methods, Nambu-Goto, L¨uscher–Weiss action, Lattice Gauge Theory
我们比较了两环阶的Nambu-Goto有效弦模型对卡西米尔能量和弦的量子离域宽度的预测，以及在纯SU (3) Yang-Mills LGT中对应的夸克-反夸克势和色管的宽度轮廓在定义点附近的4维。在温度T/T c = 0时，当考虑Q¯Q势和色管展宽的NLO项时，会返回较小的修正。8. 在更接近临界点的温度下T/T = 0。9，我们发现NLO的贡献，从Nambu-Goto弦的扩展，在中间距离尺度上，在全QCD中弦断裂之前，对改善与晶格数据的匹配有显著的影响。弦的自相互作用有助于抑制弦宽的加宽，并且在中间距离沿弦的非弯曲/挤压剖面。彩色通量管，玻色子弦，蒙特卡罗方法，南布-后藤，L¨uscher-Weiss作用，点阵规范理论
{"title":"String Self-Interactions Near the Deconfinement Point in SU(3) Yang-Mills Theory","authors":"A. Bakry, X. Chen, M. Deliyergiyev, S. Xu, P. Zhang, A. Galal, A. Khalaf","doi":"10.1142/9789811207402_0021","DOIUrl":"https://doi.org/10.1142/9789811207402_0021","url":null,"abstract":"We compare the predictions of Nambu-Goto effective string model at two loop-order for the Casimir energy and the width of the quantum delocalization of the string to the corresponding quark-antiquark potential and width profile of the color tube in pure SU (3) Yang-Mills LGT at 4-dimensions near the deconfinement point. Minor corrections are returned, when considering NLO terms for both the Q ¯ Q potential and broadening of the color tube, at the temperature T/T c = 0 . 8. At a closer temperature to the critical point T/T c = 0 . 9, we found that the NLO contributions, from the expansion of the Nambu-Goto string, have a significant effect in improving the match to lattice data in the intermediate distances scales–before the string breaks in full QCD. The string’s self-interactions contributes in the suppressed broadening of the string’s width and the non-curved/squeezed profile along the string in the intermediate distance. color flux-tube, bosonic strings, Monte-Carlo methods, Nambu-Goto, L¨uscher–Weiss action, Lattice Gauge Theory","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123419610","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}
Pub Date : 2020-03-01DOI: 10.1142/9789811207402_fmatter
Wen Wang, Z. Xing
{"title":"FRONT MATTER","authors":"Wen Wang, Z. Xing","doi":"10.1142/9789811207402_fmatter","DOIUrl":"https://doi.org/10.1142/9789811207402_fmatter","url":null,"abstract":"","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"443 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115858220","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}
Pub Date : 2020-03-01DOI: 10.1142/9789811207402_0049
Jiang Zhu, Kaijie Li, Z. You, Yumei Zhang
{"title":"Detector Description and Event Display for the JUNO Experiment","authors":"Jiang Zhu, Kaijie Li, Z. You, Yumei Zhang","doi":"10.1142/9789811207402_0049","DOIUrl":"https://doi.org/10.1142/9789811207402_0049","url":null,"abstract":"","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114659260","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}
Pub Date : 2020-03-01DOI: 10.1142/9789811207402_0003
Y. Yamazaki
Top quarks are copiously produced at the LHC. The measurements are in stage for precision. A review on top-quark properties measured by the ATLAS, CMS and LHCb collaborations is presented, including the mass of the top quark, coupling, production cross sections and decay properties.
{"title":"Determination of Top-Quark Properties","authors":"Y. Yamazaki","doi":"10.1142/9789811207402_0003","DOIUrl":"https://doi.org/10.1142/9789811207402_0003","url":null,"abstract":"Top quarks are copiously produced at the LHC. The measurements are in stage for precision. A review on top-quark properties measured by the ATLAS, CMS and LHCb collaborations is presented, including the mass of the top quark, coupling, production cross sections and decay properties.","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126105121","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}
Pub Date : 2018-05-03DOI: 10.1142/S2010194518600625
Long-Ke Li
{"title":"Charm Physics Prospects at the Belle II Experiment","authors":"Long-Ke Li","doi":"10.1142/S2010194518600625","DOIUrl":"https://doi.org/10.1142/S2010194518600625","url":null,"abstract":"","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128789550","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}
Pub Date : 2018-02-10DOI: 10.1142/9789811207402_0038
Jiayin Shen, Xun Xue
The accelerating expansion of universe can be described by the non-zero cosmological constant or the dark energy. However, the origin of the dark energy remains a mystery of modern physics. The local Lorentz invariance is the most exact symmetry of the Nature on the one hand, but all quantum gravity theories predict Lorentz violation on the other hand. The local Lorentz violation induced by the quantum gravity at the very early universe may be transformed into large scale by inflation. Combining the low-$l$ anomalies of the CMB spectrum, we propose that the local Lorentz invariance may be broken at the large scale. We construct the effective gravity at the cosmic scale with a local $SO(3)$ symmetry. The theory exhibits non-trivial contortion distribution even with scalar matter source. The FRW like solution of the theory is analyzed and the contortion distribution contributes a dark energy like effect which is responsible for the accelerating expansion of the universe. It reveals that the dark energy may be the remnants of quantum gravity in this sense.
{"title":"Large Scale Lorentz Violation Gravity and Dark Energy","authors":"Jiayin Shen, Xun Xue","doi":"10.1142/9789811207402_0038","DOIUrl":"https://doi.org/10.1142/9789811207402_0038","url":null,"abstract":"The accelerating expansion of universe can be described by the non-zero cosmological constant or the dark energy. However, the origin of the dark energy remains a mystery of modern physics. The local Lorentz invariance is the most exact symmetry of the Nature on the one hand, but all quantum gravity theories predict Lorentz violation on the other hand. The local Lorentz violation induced by the quantum gravity at the very early universe may be transformed into large scale by inflation. Combining the low-$l$ anomalies of the CMB spectrum, we propose that the local Lorentz invariance may be broken at the large scale. We construct the effective gravity at the cosmic scale with a local $SO(3)$ symmetry. The theory exhibits non-trivial contortion distribution even with scalar matter source. The FRW like solution of the theory is analyzed and the contortion distribution contributes a dark energy like effect which is responsible for the accelerating expansion of the universe. It reveals that the dark energy may be the remnants of quantum gravity in this sense.","PeriodicalId":158651,"journal":{"name":"Lepton Photon Interactions at High Energies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131440513","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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