Probing a secluded U(1) at B factories

被引：238

作者：

Batell, Brian ^{[1
]}

Pospelov, Maxim ^{[1
,2
]}

Ritz, Adam ^{[2
]}

机构：

[1] Perimeter Inst Theoret Phys, Waterloo, ON N2J 2W9, Canada

[2] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 1A1, Canada

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HIGGS-BOSON; ENERGIES;

D O I：

10.1103/PhysRevD.79.115008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A secluded U(1)(S) gauge field, kinetically mixed with standard model hypercharge, provides a "portal" mediating interactions with a hidden sector at the renormalizable level, as recently exploited in the context of weakly interacting massive particle dark matter. The U(1)(S) symmetry-breaking scale may naturally be suppressed relative to the weak scale, and so this sector is efficiently probed by medium-energy e(+)e(-) colliders. We study the collider signatures of the minimal U(1)(S) model, focusing on the reach of B-factory experiments such as BABAR and BELLE. In particular, we show that Higgs strahlung in the secluded sector can lead to multilepton signatures, which probe the natural range for the kinetic mixing angle kappa similar to 10(-2)-10(-3) over a large portion of the kinematically accessible parameter space.

引用

页数：9

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