A precision relation between γ(K→ μ+μ-)(t) and B(KL→ μ+μ-)/B(KL→ γγ)

doi:10.1007/JHEP03(2023)014

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	A precision relation between γ(K→ μ+μ-)(t) and B(KL→ μ+μ-)/B(KL→ γγ)
	Dery, Avital ; Ghosh, Mitrajyoti ; Grossman, Yuval ; Kitahara, Teppei 1,2,3,4; Schacht, Stefan 5
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	3 页码:14
关键词	KAON DECAYS RATES
ISSN号	1029-8479
DOI	10.1007/JHEP03(2023)014
英文摘要	We find that the phase appearing in the unitarity relation between B(K-L mu(+)mu(-)) and B(K-L -> yy)is equal to the phase shift in the interference term of the time dependent K mu+mu- decay. A probe of this relation at future kaon facilities constitutes a Standard Model test with a theory precision of about 2%. The phase has further importance for sensitivity studies regarding the measurement of the time-dependent K mu(+)mu(-) decay rate to extract the CKM matrix element combination \|VtnVtd sin(beta + beta n)\| approximate to A(2)lambda(5)eta. We find a model-independent theoretically clean prediction, cos(2) phi(0) = 0.96 +/- 0.03. The quoted error is a combination of the theoretical and experimental errors, and both of them are expected to shrink in the future. Using input from the large -NC limit within chiral perturbation theory, we find a theory preference towards solutions with negative cos phi(0), reducing a four-fold ambiguity in the angle phi(0) to a two-fold one.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27919]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Cornell Univ, Dept Phys, LEPP, Ithaca, NY 14853 USA 2.Nagoya Univ, Inst Adv Res, Nagoya 4648601, Japan 3.Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya 4648602, Japan 4.KEK Theory Ctr, IPNS, KEK, Tsukuba 3050801, Japan 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England
推荐引用方式 GB/T 7714	Dery, Avital,Ghosh, Mitrajyoti,Grossman, Yuval,et al. A precision relation between γ(K→ μ+μ-)(t) and B(KL→ μ+μ-)/B(KL→ γγ)[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(3):14.
APA	Dery, Avital,Ghosh, Mitrajyoti,Grossman, Yuval,Kitahara, Teppei,&Schacht, Stefan.(2023).A precision relation between γ(K→ μ+μ-)(t) and B(KL→ μ+μ-)/B(KL→ γγ).JOURNAL OF HIGH ENERGY PHYSICS(3),14.
MLA	Dery, Avital,et al."A precision relation between γ(K→ μ+μ-)(t) and B(KL→ μ+μ-)/B(KL→ γγ)".JOURNAL OF HIGH ENERGY PHYSICS .3(2023):14.