Heavy-meson physics and flavour violation with a single generation

被引：3

作者：

Libanov, M. ^{[1
,2
,3
]}

Nemkov, N. ^{[1
,3
]}

Nugaev, E. ^{[1
]}

Timiryasov, I. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[3] Dept Problems Phys & Power Engn, Dolgoprudnyi 141700, Moscow Region, Russia

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

Rare Decays; Large Extra Dimensions; Quark Masses and SM Parameters;

D O I：

10.1007/JHEP08(2012)136

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study flavour-violating processes which involve heavy B-and D-mesons and are mediated by Kaluza-Klein modes of gauge bosons in a previously suggested model where three generations of the Standard Model fermions originate from a single generation in six dimensions. We find the bound on the size R of the extra spatial dimensions 1/R greater than or similar to 3.3 TeV, which arises from the three-body decay B-s(0) -> K mu e. Due to the still too low statistics this bound is much less stringent than the constraint arising from K -> mu e, 1/R greater than or similar to 64 TeV, which was found in a previous work [1]. Nevertheless, we argue that a clear signature of the model would be an observation of K -> mu e and B-s(0) -> K mu e decays without observations of other flavour and lepton number changing processes at the same precision level.

引用

页数：16