Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model

Okada, Nobuchika; Okada, Satomi; Raut, Digesh

doi:10.1103/PhysRevD.100.035022

Title: Natural $Z^{'}$ -portal Majorana dark matter in alternative U(1) extended standard model

Abstract

We consider a nonexotic gauged U(1)_X extension of the Standard Model (SM), where the U(1)_X charge of a SM field is given by a linear combination of its hypercharge and baryon-minus-lepton (B–L) number. All the gauge and mixed gauge-gravitational anomalies are canceled in this model with the introduction of three right-handed neutrinos (RHNs). Unlike the conventional minimal U(1)_X model, where a universal U(1)_X charge of –1 is assigned to three RHNs, we consider an alternative charge assignment, namely, two RHNs ($N$$^{1,2}_{R}$$) have U(1)_X charge –4 while one RHN (N_R) has a +5 charge. With a minimal extension of the Higgs sector, the three RHNs acquire their Majorana masses associated with U(1)_X symmetry breaking. While $N$$^{1,2}_{R}$$ have Yukawa coupling with the SM lepton doublets and play an essential role for the “minimal seesaw” mechanism, NR is isolated from the SM particles due to its U(1)_X charge and hence it is a natural candidate for the dark matter (DM) without invoking additional symmetries. In this model context, we investigate the Z'-portal RHN DM scenario, where the RHN DM communicates with the SM particles through the U(1)_X gauge boson (Z' boson). We identify a narrow parameter space by combining the constraints from the observed DM relic abundance, the results of the search for a Z' boson resonance at the Large Hadron Collider Run-2, and the gauge coupling perturbativity up to the Planck/grand unification scale. A special choice of U(1)_X charges for the SM fields allows us to extend the model to SU(5) × U(1)_X grand unification. In this scenario, the model parameter space is more severely constrained, which will be explored at future high energy collider experiments.

Authors:: Okada, Nobuchika; Okada, Satomi; Raut, Digesh

Publication Date:: 2019-08-22

Research Org.:: Univ. of Delaware, Newark, DE (United States); Univ. of Alabama, Tuscaloosa, AL (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1558695

Alternate Identifier(s):: OSTI ID: 1612043

Grant/Contract Number:: SC0012447; SC-0013880; SC0013880

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 3; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; Physics; Extensions of fermion sector; Extensions of gauge sector; Grand unified models; Particle dark matter; Vacuum stability

Citation Formats


                    Okada, Nobuchika, Okada, Satomi, and Raut, Digesh. Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.100.035022.

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                    Okada, Nobuchika, Okada, Satomi, & Raut, Digesh. Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model.  United States.  https://doi.org/10.1103/PhysRevD.100.035022

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                    Okada, Nobuchika, Okada, Satomi, and Raut, Digesh. Thu .  
"Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model".  United States.  https://doi.org/10.1103/PhysRevD.100.035022.

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@article{osti_1558695,

  title        = {Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model},

  author       = {Okada, Nobuchika and Okada, Satomi and Raut, Digesh},

  abstractNote = {We consider a nonexotic gauged U(1)X extension of the Standard Model (SM), where the U(1)X charge of a SM field is given by a linear combination of its hypercharge and baryon-minus-lepton (B–L) number. All the gauge and mixed gauge-gravitational anomalies are canceled in this model with the introduction of three right-handed neutrinos (RHNs). Unlike the conventional minimal U(1)X model, where a universal U(1)X charge of –1 is assigned to three RHNs, we consider an alternative charge assignment, namely, two RHNs ($N$$^{1,2}_{R}$) have U(1)X charge –4 while one RHN (NR) has a +5 charge. With a minimal extension of the Higgs sector, the three RHNs acquire their Majorana masses associated with U(1)X symmetry breaking. While $N$$^{1,2}_{R}$ have Yukawa coupling with the SM lepton doublets and play an essential role for the “minimal seesaw” mechanism, NR is isolated from the SM particles due to its U(1)X charge and hence it is a natural candidate for the dark matter (DM) without invoking additional symmetries. In this model context, we investigate the Z'-portal RHN DM scenario, where the RHN DM communicates with the SM particles through the U(1)X gauge boson (Z' boson). We identify a narrow parameter space by combining the constraints from the observed DM relic abundance, the results of the search for a Z' boson resonance at the Large Hadron Collider Run-2, and the gauge coupling perturbativity up to the Planck/grand unification scale. A special choice of U(1)X charges for the SM fields allows us to extend the model to SU(5) × U(1)X grand unification. In this scenario, the model parameter space is more severely constrained, which will be explored at future high energy collider experiments.},

  doi          = {10.1103/PhysRevD.100.035022},

  journal      = {Physical Review D},

  number       = 3,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {8}

}

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Title: Natural Z ′ -portal Majorana dark matter in alternative U(1) extended standard model

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The minimal GUT with inflaton and dark matter unification journal, January 2018

Supersymmetric minimal B − L model at the TeV scale with right-handed Majorana neutrino dark matter journal, March 2012

Gauging symmetries and the number of right-handed neutrinos journal, May 2009

Dirac or inverse seesaw neutrino masses with B − L gauge symmetry and S 3 flavor symmetry journal, February 2015

Z ′ -portal right-handed neutrino dark matter in the minimal U ( 1 ) X extended Standard Model journal, February 2017

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Unity of All Elementary-Particle Forces journal, February 1974

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A new two Higgs doublet model journal, November 2007

Higgs portal dark matter in the minimal gauged U ( 1 ) B − L model journal, July 2010

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μ→eγ at a rate of one out of 109 muon decays? journal, April 1977

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Split two-Higgs-doublet model and neutrino condensation journal, November 2006

Search for high-mass resonances in dilepton final states in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV journal, June 2018

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Title: Natural $Z^{'}$ -portal Majorana dark matter in alternative U(1) extended standard model

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Unity of All Elementary-Particle Forces
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Planck 2015 results : XIII. Cosmological parameters
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Dirac neutrinos from a second Higgs doublet
journal, November 2009

NLO+NLL collider bounds, Dirac fermion and scalar dark matter in the B–L model
journal, May 2017

New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002

Neutrino masses and the scale of B-L violation
journal, September 1981

$Z^{'}$ gauge bosons at the Fermilab Tevatron
journal, November 2004

Consistency checks of grand unified theories
journal, May 1992

Right-handed neutrino dark matter in the classically conformal ${U (1)}^{'}$ extended standard model
journal, November 2017

Search for new high-mass phenomena in the dilepton final state using 36 fb−1 of proton-proton collision data at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector
journal, October 2017

Beautiful mirrors and precision electroweak data
journal, January 2002

Natural non-SUSY SU(N) GUTs
journal, December 1994

New fermions at the LHC and mass of the Higgs boson
journal, July 2010

Search for Nucleon Decay in Super-Kamiokande
journal, April 2016

TeV-scale seesaw from a multi-Higgs model
journal, August 2010

Neutrino masses, neutral vector bosons and the scale of B−L breaking
journal, September 1991

Horizontal Symmetry and Masses of Neutrinos
journal, September 1980

Beautiful mirrors, unification of couplings, and collider phenomenology
journal, March 2004

Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model
journal, August 2018

Nonexotic neutral gauge bosons
journal, August 2003

$Z^{'}$ Portal Dark Matter in the Minimal $B - L$ Model
journal, July 2018

Neutrino Mass and Spontaneous Parity Nonconservation
journal, April 1980

Neutrino masses in SU(2) ⊗ U(1) theories
journal, November 1980

Classically conformal ${U (1)}^{'}$ extended standard model, electroweak vacuum stability, and LHC Run-2 bounds
journal, June 2016

Gauge $B – L$ model with residual $Z_{3}$ symmetry
journal, November 2015

Investigating the near-criticality of the Higgs boson
journal, December 2013

Naturally Small Seesaw Neutrino Mass with No New Physics Beyond the TeV Scale
journal, March 2001

Local $B - L$ Symmetry of Electroweak Interactions, Majorana Neutrinos, and Neutron Oscillations
journal, May 1980

Constraining minimal $U (1)_{B - L}$ model from dark matter observations
journal, March 2014

The dispirited case of gauged U(1)B − L dark matter
journal, August 2018