The University of Southampton
University of Southampton Institutional Repository

Extra Higgs boson and Z as portals to signatures of heavy neutrinos at the LHC

Extra Higgs boson and Z as portals to signatures of heavy neutrinos at the LHC
Extra Higgs boson and Z as portals to signatures of heavy neutrinos at the LHC

In this paper, we discuss the potential of observing heavy neutrino (νh) signatures of a U(1)B−L enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the Large Hadron Collider (LHC). We exploit the theoretical decay via a heavy (non-SM-like) Higgs boson and Z production followed by νh → l± W and νh → νlZ(∗) decays, ultimately yielding a 3l + 2j + ET miss signature and, depending upon how boosted the final state objects are, we define different possible selections aimed at improving the signal to background ratio in LHC Run 2 data for a wide range of heavy neutrino masses.

Beyond Standard Model, GUT, Higgs Physics, Neutrino Physics
1126-6708
1-31
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Rose, Luigi Delle
fae9e612-f9b9-459f-9bff-2cbac09f2fb2
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Olaiya, Emmanuel
154f58e0-ab04-4f19-96d6-b788955a9ce7
Shepherd-Themistocleous, Claire H.
02e9b880-a622-4ad1-9b20-db7ed25b2fa8
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Rose, Luigi Delle
fae9e612-f9b9-459f-9bff-2cbac09f2fb2
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Olaiya, Emmanuel
154f58e0-ab04-4f19-96d6-b788955a9ce7
Shepherd-Themistocleous, Claire H.
02e9b880-a622-4ad1-9b20-db7ed25b2fa8

Accomando, Elena, Rose, Luigi Delle, Moretti, Stefano, Olaiya, Emmanuel and Shepherd-Themistocleous, Claire H. (2018) Extra Higgs boson and Z as portals to signatures of heavy neutrinos at the LHC. The Journal of High Energy Physics, 2018 (109), 1-31. (doi:10.1007/JHEP02(2018)109).

Record type: Article

Abstract

In this paper, we discuss the potential of observing heavy neutrino (νh) signatures of a U(1)B−L enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the Large Hadron Collider (LHC). We exploit the theoretical decay via a heavy (non-SM-like) Higgs boson and Z production followed by νh → l± W and νh → νlZ(∗) decays, ultimately yielding a 3l + 2j + ET miss signature and, depending upon how boosted the final state objects are, we define different possible selections aimed at improving the signal to background ratio in LHC Run 2 data for a wide range of heavy neutrino masses.

Text
10.1007%2FJHEP02(2018)109 - Version of Record
Available under License Creative Commons Attribution.
Download (1MB)

More information

Accepted/In Press date: 8 February 2018
e-pub ahead of print date: 19 February 2018
Published date: February 2018
Keywords: Beyond Standard Model, GUT, Higgs Physics, Neutrino Physics

Identifiers

Local EPrints ID: 418662
URI: https://eprints.soton.ac.uk/id/eprint/418662
ISSN: 1126-6708
PURE UUID: 22c3f596-bc11-4074-a782-e51d1f6abfcf

Catalogue record

Date deposited: 16 Mar 2018 17:30
Last modified: 13 Mar 2019 18:45

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×