BibTex format
@article{Hayrapetyan:2024:10.1007/jhep03(2024)105,
author = {Hayrapetyan, A and Tumasyan, A and Adam, W and Andrejkovic, JW and Bergauer, T and Chatterjee, S and Damanakis, K and Dragicevic, M and Hussain, PS and Jeitler, M and Krammer, N and Li, A and Liko, D and Mikulec, I and Schieck, J and Schöfbeck, R and Schwarz, D and Sonawane, M and Templ, S and Waltenberger, W and Wulz, C-E and Darwish, MR and Janssen, T and Van, Mechelen P and Bols, ES and DHondt, J and Dansana, S and De, Moor A and Delcourt, M and El, Faham H and Lowette, S and Makarenko, I and Müller, D and Sahasransu, AR and Tavernier, S and Tytgat, M and Van, Onsem GP and Van, Putte S and Vannerom, D and Clerbaux, B and Das, AK and De, Lentdecker G and Favart, L and Gianneios, P and Hohov, D and Jaramillo, J and Khalilzadeh, A and Lee, K and Mahdavikhorrami, M and Malara, A and Paredes, S and Pétré, L and Postiau, N and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and De, Coen M and Dobur, D and Hong, Y and Knolle, J and Lambrecht, L and Mestdach, G and Mota, A},
doi = {10.1007/jhep03(2024)105},
journal = {Journal of High Energy Physics},
title = {Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton},
url = {http://dx.doi.org/10.1007/jhep03(2024)105},
volume = {2024},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - <jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2–20 GeV HNL mass range for the first time. Events comprising two leptons (electrons or muons) and jets are analyzed in a data sample of proton-proton collisions, recorded with the CMS experiment at the CERN LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb<jats:sup><jats:italic>−</jats:italic>1</jats:sup>. A novel jet tagger, based on a deep neural network, has been developed to identify jets from an HNL decay using various features of the jet and its constituent particles. The network output can be used as a powerful discriminating tool to probe a broad range of HNL lifetimes and masses. Contributions from background processes are determined from data. No excess of events in data over the expected background is observed. Upper limits on the HNL production cross section are derived as functions of the HNL mass and the three coupling strengths <jats:italic>V</jats:italic><jats:sub><jats:italic></jats:italic>N</jats:sub> to each lepton generation <jats:italic></jats:italic> and presented as exclusion limits in the coupling-mass plane, as lower limits on the HNL lifetime, and on the HNL mass. In this search, the most stringent limit on the coupling strength is obtained for pure muon coupling scenarios; values of <jats:italic>|</jats:italic><jats:inline-formula><jats:alternatives><jats:tex-math>$$ {V}_{\mu \textrm{N}}^2 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>V</mml:mi> <mml:m
AU - Hayrapetyan,A
AU - Tumasyan,A
AU - Adam,W
AU - Andrejkovic,JW
AU - Bergauer,T
AU - Chatterjee,S
AU - Damanakis,K
AU - Dragicevic,M
AU - Hussain,PS
AU - Jeitler,M
AU - Krammer,N
AU - Li,A
AU - Liko,D
AU - Mikulec,I
AU - Schieck,J
AU - Schöfbeck,R
AU - Schwarz,D
AU - Sonawane,M
AU - Templ,S
AU - Waltenberger,W
AU - Wulz,C-E
AU - Darwish,MR
AU - Janssen,T
AU - Van,Mechelen P
AU - Bols,ES
AU - DHondt,J
AU - Dansana,S
AU - De,Moor A
AU - Delcourt,M
AU - El,Faham H
AU - Lowette,S
AU - Makarenko,I
AU - Müller,D
AU - Sahasransu,AR
AU - Tavernier,S
AU - Tytgat,M
AU - Van,Onsem GP
AU - Van,Putte S
AU - Vannerom,D
AU - Clerbaux,B
AU - Das,AK
AU - De,Lentdecker G
AU - Favart,L
AU - Gianneios,P
AU - Hohov,D
AU - Jaramillo,J
AU - Khalilzadeh,A
AU - Lee,K
AU - Mahdavikhorrami,M
AU - Malara,A
AU - Paredes,S
AU - Pétré,L
AU - Postiau,N
AU - Thomas,L
AU - Vanden,Bemden M
AU - Vander,Velde C
AU - Vanlaer,P
AU - De,Coen M
AU - Dobur,D
AU - Hong,Y
AU - Knolle,J
AU - Lambrecht,L
AU - Mestdach,G
AU - Mota,Amarilo K
AU - Rendón,C
AU - Samalan,A
AU - Skovpen,K
AU - Van,Den Bossche N
AU - van,der Linden J
AU - Wezenbeek,L
AU - Benecke,A
AU - Bethani,A
AU - Bruno,G
AU - Caputo,C
AU - Delaere,C
AU - Donertas,IS
AU - Giammanco,A
AU - Jaffel,K
AU - Jain,S
AU - Lemaitre,V
AU - Lidrych,J
AU - Mastrapasqua,P
AU - Mondal,K
AU - Tran,TT
AU - Wertz,S
AU - Alves,GA
AU - Coelho,E
AU - Hensel,C
AU - Menezes,De Oliveira T
AU - Moraes,A
AU - Rebello,Teles P
AU - Soeiro,M
AU - Aldá,Júnior WL
AU - Alves,Gallo Pereira M
AU - Barroso,Ferreira Filho M
AU - Brandao,Malbouisson H
AU - Carvalho,W
AU - Chinellato,J
AU - Da,Costa EM
AU - Da,Silveira GG
AU - De,Jesus Damiao D
AU - Fonseca,De Souza S
AU - Gomes,De Souza R
AU - Martins,J
AU - Mora,Herrera C
AU - Mundim,L
AU - Nogima,H
AU - Pinheiro,JP
AU - Santoro,A
AU - Sznajder,A
AU - Thiel,M
AU - Vilela,Pereira A
AU - Bernardes,CA
AU - Calligaris,L
AU - Fernandez,Perez Tomei TR
AU - Gregores,EM
AU - Mercadante,PG
AU - Novaes,SF
AU - Orzari,B
AU - Padula,SS
AU - Aleksandrov,A
AU - Antchev,G
AU - Hadjiiska,R
AU - Iaydjiev,P
AU - Misheva,M
AU - Shopova,M
AU - Sultanov,G
AU - Dimitrov,A
AU - Litov,L
AU - Pavlov,B
AU - Petkov,P
AU - Petrov,A
AU - Shumka,E
AU - Keshri,S
AU - Thakur,S
AU - Cheng,T
AU - Javaid,T
AU - Yuan,L
AU - Hu,Z
AU - Liu,J
AU - Yi,K
AU - Chen,GM
AU - Chen,HS
AU - Chen,M
AU - Iemmi,F
AU - Jiang,CH
AU - Kapoor,A
AU - Liao,H
AU - Liu,Z-A
AU - Sharma,R
AU - Song,JN
AU - Tao,J
AU - Wang,C
AU - Wang,J
AU - Wang,Z
AU - Zhang,H
AU - Agapitos,A
AU - Ban,Y
AU - Levin,A
AU - Li,C
AU - Li,Q
AU - Mao,Y
AU - Qian,SJ
AU - Sun,X
AU - Wang,D
AU - Yang,H
AU - Zhang,L
AU - Zhou,C
AU - You,Z
AU - Lu,N
AU - Bauer,G
AU - Gao,X
AU - Leggat,D
AU - Okawa
DO - 10.1007/jhep03(2024)105
PY - 2024///
TI - Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton
T2 - Journal of High Energy Physics
UR - http://dx.doi.org/10.1007/jhep03(2024)105
VL - 2024
ER -
