Possible lepton universality breaking in Upsilon decays: a light CP-odd Higgs interpretation and consequences

被引：0

作者：

Sanchis-Lozano, Miguel-Angel ^{[1
]}

机构：

[1] Univ Valencia, IFIC, Ctr Mixto, CSIC, E-46100 Burjassot, Spain

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2011年 / 218卷

关键词：

BOSON;

D O I：

10.1016/j.nuclphysbps.2011.06.013

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：

A light CP-odd Higgs boson mixing with eta(b) hadronic resonances can show up by inducing a slight but observable lepton universality breaking in Upsilon decays. Besides, hyperfine splittings m(r)(S-n) - M-nb(S-n) might also be sensitive to the mixing providing another hint of the existence of such a light pseudoscalar Higgs. On the other hand, recent findings from astroparticle and cosmology favouring a light dark matter constituent (with mass about 10 GeV or less) cast a new interest into the search for invisible decays of gamma resonances performed at B factories.

引用

页码：71 / 76

页数：6

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