Constraining the axion portal with B → Kl+l-

被引：78
作者：
Freytsis, Marat [1 ,2 ]
Ligeti, Zoltan [2 ]
Thaler, Jesse [1 ,2 ]
机构：
[1] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW D | 2010年 / 81卷 / 03期
关键词：
INVARIANCE;
D O I：
10.1103/PhysRevD.81.034001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the bounds on axionlike states from flavor-changing neutral current b -> s decays, assuming the axion couples to the standard model through mixing with the Higgs sector. Such GeV-scale axions have received renewed attention in connection with observed cosmic ray excesses. We find that existing B -> Kl(+)l(-) data impose stringent bounds on the axion decay constant in the multi-TeV range, relevant for constraining the "axion portal'' model of dark matter. Such bounds also constrain light Higgs scenarios in the next-to-minimal supersymmetric standard model. These bounds can be improved by dedicated searches in B-factory data and at LHCb.
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