Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6188
Title: Search for exotic decays of a Higgs boson into undetectable particles and one or more photons
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Large Hadron Collider (LHC)
Compact Muon Solenoid
Higgs boson
Issue Date: Feb-2016
Publisher: Elsevier Ltd.
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T.,...CMS Collaboration (2016). Search for exotic decays of a Higgs boson into undetectable particles and one or more photons. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 753, 363-388. doi:10.1016/j.physletb.2015.12.017
Abstract: A search is presented for exotic decays of a Higgs boson into undetectable particles and one or two isolated photons in pp collisions at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of up to 19.4 fb-1 collected with the CMS detector at the LHC. Higgs bosons produced in gluon-gluon fusion and in association with a Z boson are investigated, using models in which the Higgs boson decays into a gravitino and a neutralino or a pair of neutralinos, followed by the decay of the neutralino to a gravitino and a photon. The selected events are consistent with the background-only hypothesis, and limits are placed on the product of cross sections and branching fractions. Assuming a standard model Higgs boson production cross section, a 95% confidence level upper limit is set on the branching fraction of a 125 GeV Higgs boson decaying into undetectable particles and one or two isolated photons as a function of the neutralino mass. For this class of models and neutralino masses from 1 to 120 GeV an upper limit in the range of 7 to 13% is obtained. Further results are given as a function of the neutralino lifetime, and also for a range of Higgs boson masses.
URI: http://doi.org/10.1016/j.physletb.2015.12.017
http://hdl.handle.net/11147/6188
ISSN: 0370-2693
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
6188.pdfMakale1.06 MBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

15
checked on Feb 16, 2024

WEB OF SCIENCETM
Citations

15
checked on Jan 20, 2024

Page view(s)

68
checked on Feb 26, 2024

Download(s)

118
checked on Feb 26, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.