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Title: Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model

Abstract

In our recent paper (Das et al. in Phys Rev D 97:115023, 2018) we explored a prospect of discovering the heavy Majorana right-handed neutrinos (RHNs) at the future LHC in the context of the minimal non-exotic U(1) extended Standard Model (SM), where a pair of RHNs are created via decay of resonantly produced massive U(1) gauge boson (Z'). We have pointed out that this model can yield a significant enhancement of the branching ratio of the Z' boson to a pair of RHNs, which is crucial for discovering the RHNs under the very severe LHC Run-2 constraint from the search for the Z' boson with dilepton final states. In this paper, we perform a general parameter scan to evaluate the maximum production rate of the same-sign dilepton final states (smoking gun signature of Majorana RHNs production) at the LHC, while reproducing the neutrino oscillation data. We also consider the minimal non-exotic U(1) model with an alternative charge assignment. In this case, we find a further enhancement of the branching ratio of the Z' boson to a pair of RHNs compared to the conventional case, which opens up a possibility of discovering the RHNs even before the Z' boson at themore » future LHC experiment.« less

Authors:
 [1];  [2];  [2]
  1. Korea Inst. for Advanced Study (KIAS), Seoul (Korea)
  2. Univ. of Alabama, Tuscaloosa, AL (United States)
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1467917
Alternate Identifier(s):
OSTI ID: 1510003
Grant/Contract Number:  
SC0013680
Resource Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 9; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Das, Arindam, Okada, Nobuchika, and Raut, Digesh. Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model. United States: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-6171-8.
Das, Arindam, Okada, Nobuchika, & Raut, Digesh. Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model. United States. doi:10.1140/epjc/s10052-018-6171-8.
Das, Arindam, Okada, Nobuchika, and Raut, Digesh. Fri . "Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model". United States. doi:10.1140/epjc/s10052-018-6171-8.
@article{osti_1467917,
title = {Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model},
author = {Das, Arindam and Okada, Nobuchika and Raut, Digesh},
abstractNote = {In our recent paper (Das et al. in Phys Rev D 97:115023, 2018) we explored a prospect of discovering the heavy Majorana right-handed neutrinos (RHNs) at the future LHC in the context of the minimal non-exotic U(1) extended Standard Model (SM), where a pair of RHNs are created via decay of resonantly produced massive U(1) gauge boson (Z'). We have pointed out that this model can yield a significant enhancement of the branching ratio of the Z' boson to a pair of RHNs, which is crucial for discovering the RHNs under the very severe LHC Run-2 constraint from the search for the Z' boson with dilepton final states. In this paper, we perform a general parameter scan to evaluate the maximum production rate of the same-sign dilepton final states (smoking gun signature of Majorana RHNs production) at the LHC, while reproducing the neutrino oscillation data. We also consider the minimal non-exotic U(1) model with an alternative charge assignment. In this case, we find a further enhancement of the branching ratio of the Z' boson to a pair of RHNs compared to the conventional case, which opens up a possibility of discovering the RHNs even before the Z' boson at the future LHC experiment.},
doi = {10.1140/epjc/s10052-018-6171-8},
journal = {European Physical Journal. C, Particles and Fields},
number = 9,
volume = 78,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1140/epjc/s10052-018-6171-8

Citation Metrics:
Cited by: 4 works
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