Imperial College London
Dr Seez

Dr Seez

Faculty of Natural Sciences, Department of Physics

Principal Research Fellow
 
 
 
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Contact

 

c.seez Website

 
 
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Location

 

(CERN)Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sirunyan:2020:10.1007/JHEP05(2020)052,
author = {Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F and Bergauer, T and Brandstetter, J and Dragicevic, M and Eroe, J and Del, Valle AE and Flechl, M and Fruehwirth, R and Jeitler, M and Krammer, N and Kraetschmer, I and Liko, D and Madlener, T and Mikulec, I and Rad, N and Schieck, J and Schoefbeck, R and Spanring, M and Spitzbart, D and Waltenberger, W and Wittmann, J and Wulz, C-E and Zarucki, M and Drugakov, V and Mossolov, V and Gonzalez, JS and Darwish, MR and De, Wolf EA and Di, Croce D and Janssen, X and Lauwers, J and Lelek, A and Pieters, M and Sfar, HR and Van, Haevermaet H and Van, Mechelen P and Van, Putte S and Van, Remortel N and Blekman, F and Bols, ES and Chhibra, SS and DHondt, J and De, Clercq J and Lontkovskyi, D and Lowette, S and Marchesini, I and Moortgat, S and Moreels, L and Python, Q and Skovpen, K and Tavernier, S and Van, Doninck W and Van, Mulders P and Van, Parijs I and Beghin, D and Bilin, B and Brun, H and Clerbaux, B and De, Lentdecker G and Delanno},
doi = {10.1007/JHEP05(2020)052},
journal = {The Journal of High Energy Physics},
pages = {1--40},
title = {Search for an excited lepton that decays via a contact interaction to a lepton and two jets in proton-proton collisions at root s=13 TeV},
url = {http://dx.doi.org/10.1007/JHEP05(2020)052},
volume = {2020},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Results are presented from a search for events containing an excited lepton (electron or muon) produced in association with an ordinary lepton of the same flavor and decaying to a lepton and two hadronic jets. Both the production and the decay of the excited leptons are assumed to occur via a contact interaction with a characteristic energy scale Λ. The branching fraction for the decay mode under study increases with the mass of the excited lepton and is the most sensitive channel for very heavy excited leptons. The analysis uses a sample of proton-proton collisions collected by the CMS experiment at the LHC at s√ = 13 TeV, corresponding to an integrated luminosity of 77.4 fb−1. The four-body invariant mass of the two lepton plus two jet system is used as the primary discriminating variable. No significant excess of events beyond the expectation for standard model processes is observed. Assuming that Λ is equal to the mass of the excited leptons, excited electrons and muons with masses below 5.6 and 5.7 TeV, respectively, are excluded at 95% confidence level. These are the best limits to date.
AU  - Sirunyan,AM
AU  - Tumasyan,A
AU  - Adam,W
AU  - Ambrogi,F
AU  - Bergauer,T
AU  - Brandstetter,J
AU  - Dragicevic,M
AU  - Eroe,J
AU  - Del,Valle AE
AU  - Flechl,M
AU  - Fruehwirth,R
AU  - Jeitler,M
AU  - Krammer,N
AU  - Kraetschmer,I
AU  - Liko,D
AU  - Madlener,T
AU  - Mikulec,I
AU  - Rad,N
AU  - Schieck,J
AU  - Schoefbeck,R
AU  - Spanring,M
AU  - Spitzbart,D
AU  - Waltenberger,W
AU  - Wittmann,J
AU  - Wulz,C-E
AU  - Zarucki,M
AU  - Drugakov,V
AU  - Mossolov,V
AU  - Gonzalez,JS
AU  - Darwish,MR
AU  - De,Wolf EA
AU  - Di,Croce D
AU  - Janssen,X
AU  - Lauwers,J
AU  - Lelek,A
AU  - Pieters,M
AU  - Sfar,HR
AU  - Van,Haevermaet H
AU  - Van,Mechelen P
AU  - Van,Putte S
AU  - Van,Remortel N
AU  - Blekman,F
AU  - Bols,ES
AU  - Chhibra,SS
AU  - DHondt,J
AU  - De,Clercq J
AU  - Lontkovskyi,D
AU  - Lowette,S
AU  - Marchesini,I
AU  - Moortgat,S
AU  - Moreels,L
AU  - Python,Q
AU  - Skovpen,K
AU  - Tavernier,S
AU  - Van,Doninck W
AU  - Van,Mulders P
AU  - Van,Parijs I
AU  - Beghin,D
AU  - Bilin,B
AU  - Brun,H
AU  - Clerbaux,B
AU  - De,Lentdecker G
AU  - Delannoy,H
AU  - Dorney,B
AU  - Favart,L
AU  - Grebenyuk,A
AU  - Kalsi,AK
AU  - Luetic,J
AU  - Popov,A
AU  - Postiau,N
AU  - Starling,E
AU  - Thomas,L
AU  - Vander,Velde C
AU  - Vanlaer,P
AU  - Vannerom,D
AU  - Wang,Q
AU  - Cornelis,T
AU  - Dobur,D
AU  - Khvastunov,I
AU  - Roskas,C
AU  - Trocino,D
AU  - Tytgat,M
AU  - Verbeke,W
AU  - Vermassen,B
AU  - Vit,M
AU  - Zaganidis,N
AU  - Bondu,O
AU  - Bruno,G
AU  - Caputo,C
AU  - David,P
AU  - Delaere,C
AU  - Delcourt,M
AU  - Giammanco,A
AU  - Krintiras,G
AU  - Lemaitre,V
AU  - Magitteri,A
AU  - Piotrzkowski,K
AU  - Prisciandaro,J
AU  - Saggio,A
AU  - Marono,MV
AU  - Vischia,P
AU  - Zobec,J
AU  - Alves,FL
AU  - Alves,GA
AU  - Correia,Silva G
AU  - Hensel,C
AU  - Moraes,A
AU  - Rebello,Teles P
AU  - Belchior,Batista Das Chagas E
AU  - Carvalho,W
AU  - Chinellato,J
AU  - Coelho,E
AU  - Da,Costa EM
AU  - Da,Silveira GG
AU  - De,Jesus Damiao D
AU  - De,Oliveira Martins C
AU  - Fonseca,De Souza S
AU  - Huertas,Guativa LM
AU  - Malbouisson,H
AU  - Martins,J
AU  - Matos,Figueiredo D
AU  - Medina,Jaime M
AU  - Melo,De Almeida M
AU  - Mora,Herrera C
AU  - Mundim,L
AU  - Nogima,H
AU  - Prado,Da Silva WL
AU  - Sanchez,Rosas LJ
AU  - Santoro,A
AU  - Sznajder,A
AU  - Thiel,M
AU  - Tonelli,Manganote EJ
AU  - Torres,Da Silva De Araujo F
AU  - Vilela,Pereira A
AU  - Ahuja,S
AU  - Bernardes,CA
AU  - Calligaris,L
AU  - Fernandez,Perez Tomei TR
AU  - Gregores,EM
AU  - Lemos,DS
AU  - Mercadante,PG
AU  - Novaes,SF
AU  - Padula,S
AU  - Aleksandrov,A
AU  - Antchev,G
AU  - Hadjiiska,R
AU  - Iaydjiev,P
AU  - Marinov,A
AU  - Misheva,M
AU  - Rodozov,M
AU  - Shopova,M
AU  - Sultanov,G
AU  - Dimitrov,A
AU  - Litov,L
AU  - Pavlov,B
AU  - Petkov,P
AU  - Fang,W
AU  - Gao,X
AU  - Yuan,L
AU  - Ahmad,M
DO  - 10.1007/JHEP05(2020)052
EP  - 40
PY  - 2020///
SN  - 1029-8479
SP  - 1
TI  - Search for an excited lepton that decays via a contact interaction to a lepton and two jets in proton-proton collisions at root s=13 TeV
T2  - The Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP05(2020)052
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000534520400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007%2FJHEP05%282020%29052
UR  - http://hdl.handle.net/10044/1/79594
VL  - 2020
ER  -
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