Looking for new physics via semi-leptonic and leptonic rare decays of D and Ds
It is well recognized that looking for new physics at lower energy colliders is a path wnmn is complemen- tary to high energy machines such as the LHC. Using the large volume of data collected by BESIII, we may have a unique opportunity to tackle this. In this paper we calculate the branching ratios...
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| Published in | 中国物理C：英文版 Vol. 41; no. 9; pp. 59 - 69 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.09.2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1137 0254-3052 |
| DOI | 10.1088/1674-1137/41/9/093107 |
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| Abstract | It is well recognized that looking for new physics at lower energy colliders is a path wnmn is complemen- tary to high energy machines such as the LHC. Using the large volume of data collected by BESIII, we may have a unique opportunity to tackle this. In this paper we calculate the branching ratios of the semi-leptonic processes D＋ → K＋e-e＋ and D＋ → K＋e-P-＋, and the leptonic processes D0→ e-e＋ and D0→ e-μ＋, in the frameworks of the U（1） model, 2HDM and unparticle model. It is found that both the U（1） model and 2HDM may influence the semi-leptonic decay rates, but only the U（1） model offers substantial contributions to the pure leptonic decays, and the resultant branching ratio of DO → e- μ＋ can be as large as 10-7 - 10-8. This might be observed at the future super τ-charm factory. |
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| AbstractList | It is well recognized that looking for new physics at lower energy colliders is a path wnmn is complemen- tary to high energy machines such as the LHC. Using the large volume of data collected by BESIII, we may have a unique opportunity to tackle this. In this paper we calculate the branching ratios of the semi-leptonic processes D＋ → K＋e-e＋ and D＋ → K＋e-P-＋, and the leptonic processes D0→ e-e＋ and D0→ e-μ＋, in the frameworks of the U（1） model, 2HDM and unparticle model. It is found that both the U（1） model and 2HDM may influence the semi-leptonic decay rates, but only the U（1） model offers substantial contributions to the pure leptonic decays, and the resultant branching ratio of DO → e- μ＋ can be as large as 10-7 - 10-8. This might be observed at the future super τ-charm factory. |
| Author | 郭星导 郝喜庆 柯红卫 赵明刚 李学潜 |
| AuthorAffiliation | School of Physics and Math, Xuzhou University of Technology, Xuzhou 221111, China Physics Department, Henan Normal University, Xinxiang 453007, China School of Science, Tianjin University, Tianjin 300072, China Department of Physics, Nankai University, Tianjin 300071, China |
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| Notes | rare decay, D meson, LFV 11-5641/O4 It is well recognized that looking for new physics at lower energy colliders is a path wnmn is complemen- tary to high energy machines such as the LHC. Using the large volume of data collected by BESIII, we may have a unique opportunity to tackle this. In this paper we calculate the branching ratios of the semi-leptonic processes D＋ → K＋e-e＋ and D＋ → K＋e-P-＋, and the leptonic processes D0→ e-e＋ and D0→ e-μ＋, in the frameworks of the U（1） model, 2HDM and unparticle model. It is found that both the U（1） model and 2HDM may influence the semi-leptonic decay rates, but only the U（1） model offers substantial contributions to the pure leptonic decays, and the resultant branching ratio of DO → e- μ＋ can be as large as 10-7 - 10-8. This might be observed at the future super τ-charm factory. Xing-Dao Guo1,4 Xi-Qing Hao2 Hong-Wei Ke3） Ming-Gang Zhao,Xue-Qian L4（ 1 School of Physics and Math, Xuzhou University of Technology, Xuzhou 221111, China 2 Physics Department, Henan Normal University, Xinxiang 453007, China 3 School of Science, Tianjin University, Tianjin 300072, China 4 Department of Physics, Nankai University, Tianjin 300071, China |
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| SubjectTerms | 可能影响 大型强子对撞机 新物理 稀有衰变 粒子模型 衰变分支比 轻子 |
| Title | Looking for new physics via semi-leptonic and leptonic rare decays of D and Ds |
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