Effective theory of flavor for Minimal Mirror Twin Higgs

被引:30
作者
Barbieri, Riccardo [1 ,2 ]
Hall, Lawerence J. [3 ,4 ]
Harigaya, Keisuke [3 ,4 ]
机构
[1] Scuola Normale Super Pisa, Pisa, Italy
[2] Ist Nazl Fis Nucl, Pisa, Italy
[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[4] Lawrence Berkeley Natl Lab, Theoret Phys Grp, Berkeley, CA 94720 USA
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 10期
基金
美国国家科学基金会;
关键词
Beyond Standard Model; Cosmology of Theories beyond the SM; INTERACTION CROSS-SECTION; DARK-MATTER; RECOMBINATION; BARYOGENESIS; CONSTRAINTS; HIERARCHY;
D O I
10.1007/JHEP10(2017)015
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
We consider two copies of the Standard Model, interchanged by an exact parity symmetry, P. The observed fermion mass hierarchy is described by suppression factors is an element of(ni) for charged fermion i, as can arise in Froggatt-Nielsen and extra-dimensional theories of flavor. The corresponding flavor factors in the mirror sector are is an element of '(ni), so that spontaneous breaking of the parity P arises from a single parameter is an element of '/is an element of, yielding a tightly constrained version of Minimal Mirror Twin Higgs, introduced in our previous paper. Models are studied for simple values of n(i), including in particular one with SU(5)-compatibility, that describe the observed fermion mass hierarchy. The entire mirror quark and charged lepton spectrum is broadly predicted in terms of is an element of '/is an element of, as are the mirror QCD scale and the decoupling temperature between the two sectors. Helium-, hydrogen-and neutron-like mirror dark matter candidates are constrained by self-scattering and relic ionization. In each case, the allowed parameter space can be fully probed by proposed direct detection experiments. Correlated predictions are made as well for the Higgs signal strength and the amount of dark radiation.
引用
收藏
页数:37
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