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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| Veröffentlicht in: | 中国物理C：英文版 2017-09, Vol.41 (9), p.59-69 |
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| container_title | 中国物理C：英文版 |
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| creator | 郭星导 郝喜庆 柯红卫 赵明刚 李学潜 |
| description | 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. |
| doi_str_mv | 10.1088/1674-1137/41/9/093107 |
| format | Article |
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| ispartof | 中国物理C：英文版, 2017-09, Vol.41 (9), p.59-69 |
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| language | eng |
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| source | Institute of Physics Journals; IOPscience journals; Alma/SFX Local Collection; EZB Electronic Journals Library |
| subjects | 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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