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Title: Effective theory of flavor for Minimal Mirror Twin Higgs

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [2]
  1. Scuola Normale Superiore (SNS), Pisa (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)
  2. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

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 ϵ$$n_i$$ 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 ϵ'$$n_i$$, so that spontaneous breaking of the parity P arises from a single parameter ϵ'/ϵ, yielding a tightly constrained version of Minimal Mirror Twin Higgs, introduced in our previous paper. Models are studied for simple values of ni, 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 ϵ'/ϵ, 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. Lastly, 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.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; PHY-1316783; PHY-1521446
OSTI ID:
1421809
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 10; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (9)

Signatures of mirror stars journal March 2020
Singleton portals to the twin sector journal May 2019
Testing the scalar sector of the twin Higgs model at colliders journal March 2018
Singleton Portals to the Twin Sector text January 2018
Singleton portals to the twin sector text January 2019
Testing the Scalar Sector of the Twin Higgs Model at Colliders text January 2017
Cosmological Signatures of a Mirror Twin Higgs preprint January 2018
Coscattering/Coannihilation Dark Matter in a Fraternal Twin Higgs Model text January 2018
Signatures of Mirror Stars text January 2019