Hadronic decays of a light Higgs-like scalar

被引：20

作者：

Monin, Alexander ^{[1
]}

Boyarsky, Alexey ^{[2
]}

Ruchayskiy, Oleg ^{[3
]}

机构：

[1] Univ Geneva, Dept Theoret Phys, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland

[2] Leiden Univ, Lorentz Inst, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands

[3] Univ Copenhagen, Niels Bohr Inst, Discovery Ctr, Blegdamsvej 17, DK-2100 Copenhagen, Denmark

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 01期

基金：

瑞士国家科学基金会;

关键词：

BRANCHING RATIO; BOSON; RADIUS; MASS; PION; QCD;

D O I：

10.1103/PhysRevD.99.015019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We revisit the question of hadronic decays of a giga-electron-volt-mass Higgs-like scalar. A number of extensions of the Standard Model predict the Higgs sector with additional light scalars. Currently operating and planned Intensity Frontier experiments will probe for the existence of such particles, while theoretical computations are plagued by uncertainties. The goal of this paper is to bring the results in a consolidated form that can be readily used by experimental groups. To this end, we provide a physically motivated fitting ansatz for the decay width that reproduces the previous nonperturbative numerical analysis. We describe systematic uncertainties of the nonperturbative method and provide explicit examples of the influence of extra resonances above 1.4 GeV onto the total decay width.

引用

页数：19

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