EUROPEAN PHYSICAL SOCIETY CONFERENCE ON HIGH ENERGY PHYSICS, EPS-HEP2019
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2020年
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中图分类号:
O412 [相对论、场论];
O572.2 [粒子物理学];
学科分类号:
摘要:
These proceedings summarise recent work in which the Standard Model and New Physics form factors of Lambda(b) -> Lambda(c)l(-)(v) over bar (l) decays were computed up to order O(Lambda(2)(QCD)/m(c)(2)) using Heavy Quark Effective Theory (HQET). This allowed for a subsequent HQET-based determination of form factors of the decay using a fit, which combines recent theoretical predictions and experimental measurements. Consequently, the most precise value of R(Lambda(c)) to date was determined, R(Lambda(c)) = 0.324 +/- 0.004. Additionally, the sensitivity of R(Lambda(c)) to potential NP interactions was explored.
机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100864, Peoples R ChinaHenan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
Chang, Qin
Zhu, Jie
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机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R ChinaHenan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
Zhu, Jie
Wang, Xiao-Lin
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h-index: 0
机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R ChinaHenan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
Wang, Xiao-Lin
Sun, Jun-Feng
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h-index: 0
机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R ChinaHenan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
Sun, Jun-Feng
Yang, Yue-Ling
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h-index: 0
机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R ChinaHenan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Herts, Peoples R China
机构:
Xinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Wang, Ru-Min
Zhu, Jie
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h-index: 0
机构:
Xinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Zhu, Jie
Gan, Hua-Min
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机构:
Xinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Gan, Hua-Min
Fan, Ying-Ying
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h-index: 0
机构:
Xinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Fan, Ying-Ying
Chang, Qin
论文数: 0引用数: 0
h-index: 0
机构:
Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
Chang, Qin
Xu, Yuan-Guo
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h-index: 0
机构:
Xinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R ChinaXinyang Normal Univ, Inst Theoret Phys, Xinyang 464000, Henan, Peoples R China
机构:
MIT, Ctr Theoret Phys, Cambridge, MA 02139 USAMIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
Detmold, William
Lehner, Christoph
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机构:
Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USAMIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
Lehner, Christoph
Meinel, Stefan
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机构:
Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USAMIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
机构:
Inst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran, Iran
Dogus Univ, Phys Dept, TR-34722 Istanbul, TurkeyInst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran, Iran