Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV

A. M. Sirunyan; A. Tumasyan; W. Adam; Bárbara Álvarez González; Francisco Javier Cuevas Maestro; Carlos Francisco Erice Cid; Javier Fernández Menéndez; Santiago Folgueras Gómez; Isidro González Caballero; Juan Rodrigo González Fernández; José Enrique Palencia Cortezón; Víctor Rodríguez Bouza; Sergio Sánchez Cruz; CMS Collaboration; Yasar Onel; Jane M Nachtman

doi:10.1103/PhysRevD.100.112003

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Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV

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Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV

A. M. Sirunyan, A. Tumasyan, W. Adam, Bárbara Álvarez González, Francisco Javier Cuevas Maestro, Carlos Francisco Erice Cid, Javier Fernández Menéndez, Santiago Folgueras Gómez, Isidro González Caballero, Juan Rodrigo González Fernández, …

Physical review. D, Vol.100(11), 112003

12/01/2019

DOI: 10.1103/PhysRevD.100.112003

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Abstract

A search for long-lived particles decaying to photons and weakly interacting particles, using proton-proton collision data at √s = 13 TeV collected by the CMS experiment in 2016–2017 is presented. The data set corresponds to an integrated luminosity of 77.4 fb −1. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where the neutralino is long-lived and decays to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215 GeV are excluded at 95% confidence level, respectively. We extend the previous best limits in the neutralino proper decay length by up to one order of magnitude, and in the neutralino mass by up to 100 GeV.

Details

Title: Subtitle: Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
Creators: A. M. Sirunyan
A. Tumasyan
W. Adam
Bárbara Álvarez González
Francisco Javier Cuevas Maestro
Carlos Francisco Erice Cid
Javier Fernández Menéndez
Santiago Folgueras Gómez
Isidro González Caballero
Juan Rodrigo González Fernández
José Enrique Palencia Cortezón
Víctor Rodríguez Bouza
Sergio Sánchez Cruz
CMS Collaboration
Yasar Onel (Contributor) - Physics and Astronomy
Jane M Nachtman (Contributor) - Physics and Astronomy
Resource Type: Journal article
Publication Details: Physical review. D, Vol.100(11), 112003
DOI: 10.1103/PhysRevD.100.112003
ISSN: 2470-0010
eISSN: 2470-0029
Grant note: 752730 / European Commission (ec__________::EC) 765710 / European Commission (ec__________::EC) 675440 / European Commission (ec__________::EC)
Language: English
Date published: 12/01/2019
Academic Unit: Physics and Astronomy
Record Identifier: 9984428787902771

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