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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:
; ;
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
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 Name: European Physical Journal. C, Particles and Fields Journal Volume: 78 Journal Issue: 9; Journal ID: ISSN 1434-6044
Publisher:
Springer Science + Business Media
Country of Publication:
Germany
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. Germany: 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. Germany. doi:https://doi.org/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". Germany. doi:https://doi.org/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 = {Germany},
year = {2018},
month = {8}
}

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

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Cited by: 4 works
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    Works referencing / citing this record:

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