Studying the lepton number and lepton flavor violating D0 → e±μ∓ and Dd/s+ → π(K)+e±μ∓ decays

被引：6

作者：

Wang, Ru-Min ^{[1
]}

Sheng, Jin-Huan ^{[1
]}

Zhu, Jie ^{[1
]}

Fan, Ying-Ying ^{[1
]}

Gao, Yang ^{[1
]}

机构：

[1] Xinyang Normal Univ, Coll Phys & Elect Engn, Xinyang 464000, Henan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2014年 / 29卷 / 29期

基金：

中国国家自然科学基金;

关键词：

D decays; lepton number violating; lepton flavor violating; SUPERSYMMETRY;

D O I：

10.1142/S0217751X14501693

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The rare D decays are sensitive to new physics involving the up quark sector such as certain R-parity violating supersymmetric models. We study the lepton number and lepton flavor violating D-0 --> e(+)mu(-/+) and D-d/s(+) --> pi(K)(+)e(+)mu(-/+) decays in the supersymmetry without R-parity. From the best experimental upper limits of these decay branching ratios, we derive constraints on the relevant coupling products for the first time, and examine their contributions to relevant branching ratios and dileptonic invariant mass spectra. We find that all branching ratios are very sensitive to moduli of the squark exchange coupling products. Accurate measurements of these decay branching ratios in the future experiments at LHC and BESIII could give very strong bounds on relevant lepton number and lepton flavor violating coupling products.

引用

页数：7

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