Accumulating hints for flavor-violating Higgs bosons at the electroweak scale

被引：4

作者：

Crivellin, Andreas ^{[1
,2
]}

Iguro, Syuhei ^{[3
,4
,5
]}

机构：

[1] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-20138057 Zurich, Switzerland

[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[3] Karlsruhe Inst Technol KIT, Inst Theoret Particle Phys TTP, Wolfgang Gaede Str 1, D-76131 Karlsruhe, Germany

[4] KIT, Inst Astroparticle Phys IAP, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[5] Nagoya Univ, Inst Adv Res IAR, Nagoya 4648601, Japan

来源：

PHYSICAL REVIEW D | 2024年 / 110卷 / 01期

基金：

瑞士国家科学基金会;

关键词：

BROKEN SYMMETRIES; CP-VIOLATION; MODELS; MASS;

D O I：

10.1103/PhysRevD.110.015014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that supplementing the Standard Model by only a second Higgs doublet, a combined explanation of h -* e tau, h -* mu tau, b -* sl+l-, the W mass and R(D(*)) as well as the excess in t -* bH+(130 GeV) -* bb<overline>c is possible. While this requires flavor violating couplings, the stringent bounds from, e.g., mu -* e gamma, tau -* mu gamma, Bs - B<overline>s mixing, b -* s gamma, low mass dijet, and pp -* H+H- -* tau+tau- nu nu<overline> searches can be avoided. However, the model is very constrained; it inevitably predicts a shift in the SM Higgs coupling strength to tau leptons as well as a nonzero t -* hc rate, as indeed preferred by recent measurements. We study three benchmark points providing such a simultaneous explanation and calculate their predictions, including collider signatures which can be tested with upcoming LHC run-3 data.

引用

页数：5

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