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STUDY OF CP VIOLATION IN Lambda(+)(c) DECAY
Kang XW(康现伟); 李海波(实); Kang, XW; Li, HB; Lu, GR; Datta, A
2011
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
卷号26期号:15页码:2523-2535
通讯作者[Kang, Xian-Wei ; Lu, Gong-Ru] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China ; [Kang, Xian-Wei ; Li, Hai-Bo] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Datta, Alakabha] Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA
摘要In this paper, we study CP violation in Lambda(+)(c) BP and Lambda(+)(c) -> BV decays, where B, P and V denote a light spin-1/2 baryon, pseudoscalar and a vector meson respectively. In these processes the T odd CP violating triple-product (TP) correlations are examined. The genuine CP violating observables which are composed of the helicity mplitudes occurring in the angular distribution are constructed. Experimentally, by performing a full angular analysis it is shown how one may extract the helicity mplitudes and then obtain the TP asymmetries. We estimate the TP asymmetries in Lambda(+)(c) decays to be negligible in the Standard Model making these processes an xcellent place to look for new physics. Taking a two-Higgs doublet model, as an example of new physics, we show that large TP asymmetries are possible in these decays. Finally, we discuss how BES-III and super tau-charm experiments will be sensitive to these CP violating signals in Lambda(+)(c) decays.
文章类型Article
关键词CP violation new physics helicity two-Higgs doublet model
学科领域Physics
研究领域[WOS]Physics
DOI10.1142/S0217751X11053432
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语种英语
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000291585700004
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239774
专题实验物理中心
作者单位中国科学院高能物理研究所
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Kang XW,Li HB,Kang, XW,et al. STUDY OF CP VIOLATION IN Lambda(+)(c) DECAY[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2011,26(15):2523-2535.
APA 康现伟,李海波,Kang, XW,Li, HB,Lu, GR,&Datta, A.(2011).STUDY OF CP VIOLATION IN Lambda(+)(c) DECAY.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,26(15),2523-2535.
MLA 康现伟,et al."STUDY OF CP VIOLATION IN Lambda(+)(c) DECAY".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 26.15(2011):2523-2535.
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