Imperial College London

Alexander Tapper

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 1551a.tapper Website

 
 
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Location

 

508Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sirunyan:2021:10.1103/PhysRevD.104.032006,
author = {Sirunyan, AM and Tumasyan, A and Adam, W and Andrejkovic, JW and Bergauer, T and Chatterjee, S and Dragicevic, M and Del, Valle AE and Fruhwirth, R and Jeitler, M and Krammer, N and Lechner, L and Liko, D and Mikulec, I and Pitters, FM and Schieck, J and Schofbeck, R and Spanring, M and Templ, S and Waltenberger, W and Wulz, C-E and Chekhovsky, V and Litomin, A and Makarenko, V and Darwish, MR and De, Wolf EA and Janssen, X and Kello, T and Lelek, A and Sfar, HR and Van, Mechelen P and Van, Putte S and Van, Remortel N and Blekman, F and Bols, ES and D'Hondt, J and De, Clercq J and Delcourt, M and Lowette, S and Moortgat, S and Morton, A and Muller, D and Sahasransu, AR and Tavernier, S and Van, Doninck W and Van, Mulders P and Beghin, D and Bilin, B and Clerbaux, B and De, Lentdecker G and Favart, L and Grebenyuk, A and Kalsi, AK and Lee, K and Mahdavikhorrami, M and Makarenko, I and Moureaux, L and Petre, L and Popov, A and Postiau, N and Starling, E and Thomas, L and Vanden, Bemden M},
doi = {10.1103/PhysRevD.104.032006},
journal = {Physical Review D: Particles, Fields, Gravitation and Cosmology},
pages = {1--26},
title = {Search for top squarks in final states with two top quarks and several light-flavor jets in proton-proton collisions at root s=13 TeV},
url = {http://dx.doi.org/10.1103/PhysRevD.104.032006},
volume = {104},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Many new physics models, including versions of supersymmetry characterized by R-parity violation (RPV), compressed mass spectra, long decay chains, or additional hidden sectors, predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results of a search for new physics in events with two top quarks and additional jets are reported. The search is performed using events with at least seven jets and exactly one electron or muon. No requirement on missing transverse momentum is imposed. The study is based on a sample of proton-proton collisions at √s=13TeV corresponding to 137  fb−1 of integrated luminosity collected with the CMS detector at the LHC in 2016–2018. The data are used to determine best fit values and upper limits on the cross section for pair production of top squarks in scenarios of RPV and stealth supersymmetry. Top squark masses up to 670 (870)  GeV are excluded at 95% confidence level for the RPV (stealth) scenario, and the maximum observed local signal significance is 2.8 standard deviations for the RPV scenario with top squark mass of 400  GeV.
AU - Sirunyan,AM
AU - Tumasyan,A
AU - Adam,W
AU - Andrejkovic,JW
AU - Bergauer,T
AU - Chatterjee,S
AU - Dragicevic,M
AU - Del,Valle AE
AU - Fruhwirth,R
AU - Jeitler,M
AU - Krammer,N
AU - Lechner,L
AU - Liko,D
AU - Mikulec,I
AU - Pitters,FM
AU - Schieck,J
AU - Schofbeck,R
AU - Spanring,M
AU - Templ,S
AU - Waltenberger,W
AU - Wulz,C-E
AU - Chekhovsky,V
AU - Litomin,A
AU - Makarenko,V
AU - Darwish,MR
AU - De,Wolf EA
AU - Janssen,X
AU - Kello,T
AU - Lelek,A
AU - Sfar,HR
AU - Van,Mechelen P
AU - Van,Putte S
AU - Van,Remortel N
AU - Blekman,F
AU - Bols,ES
AU - D'Hondt,J
AU - De,Clercq J
AU - Delcourt,M
AU - Lowette,S
AU - Moortgat,S
AU - Morton,A
AU - Muller,D
AU - Sahasransu,AR
AU - Tavernier,S
AU - Van,Doninck W
AU - Van,Mulders P
AU - Beghin,D
AU - Bilin,B
AU - Clerbaux,B
AU - De,Lentdecker G
AU - Favart,L
AU - Grebenyuk,A
AU - Kalsi,AK
AU - Lee,K
AU - Mahdavikhorrami,M
AU - Makarenko,I
AU - Moureaux,L
AU - Petre,L
AU - Popov,A
AU - Postiau,N
AU - Starling,E
AU - Thomas,L
AU - Vanden,Bemden M
AU - Vander,Velde C
AU - Vanlaer,P
AU - Vannerom,D
AU - Wezenbeek,L
AU - Cornelis,T
AU - Dobur,D
AU - Gruchala,M
AU - Mestdach,G
AU - Niedziela,M
AU - Roskas,C
AU - Skovpen,K
AU - Tytgat,M
AU - Verbeke,W
AU - Vermassen,B
AU - Vit,M
AU - Bethani,A
AU - Bruno,G
AU - Bury,F
AU - Caputo,C
AU - David,P
AU - Delaere,C
AU - Donertas,IS
AU - Giammanco,A
AU - Lemaitre,V
AU - Mondal,K
AU - Prisciandaro,J
AU - Taliercio,A
AU - Teklishyn,M
AU - Vischia,P
AU - Wertz,S
AU - Wuyckens,S
AU - Alves,GA
AU - Hensel,C
AU - Moraes,A
AU - Junior,WLA
AU - Ferreira,Filho MB
AU - Malbouisson,HB
AU - Carvalho,W
AU - Chinellato,J
AU - Da,Costa EM
AU - Da,Silveira GG
AU - Damiao,DDJ
AU - De,Souza SF
AU - Figueiredo,DM
AU - Herrera,CM
AU - Amarilo,KM
AU - Mundim,L
AU - Nogima,H
AU - Teles,PR
AU - Rosas,LJS
AU - Santoro,A
AU - Do,Amaral SMS
AU - Sznajder,A
AU - Thiel,M
AU - Da,Silva De Araujo FT
AU - Pereira,AV
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,SS
AU - Aleksandrov,A
AU - Antchev,G
AU - Atanasov,I
AU - Hadjiiska,R
AU - Iaydjiev,P
AU - Misheva,M
AU - Rodozov,M
AU - Shopova,M
AU - Sultanov,G
AU - Dimitrov,A
AU - Ivanov,T
AU - Litov,L
AU - Pavlov,B
AU - Petkov,P
AU - Petrov,A
AU - Cheng,T
AU - Fang,W
AU - Guo,Q
AU - Javaid,T
AU - Mittal,M
AU - Wang,H
AU - Yuan,L
AU - Ahmad,M
AU - Bauer,G
AU - Dozen,C
AU - Hu,Z
AU - Martins,J
AU - Wang,Y
AU - Yi,K
AU - Chapon,E
AU - Chen,GM
AU - Chen,HS
AU - Chen,M
AU - Kapoor,A
AU - Leggat,D
AU - Liao,H
AU - Liu,Z-A
AU - Sharma,R
AU - Spiezia,A
AU - Tao,J
AU - Thomas-Wilsker,J
AU - Wang,J
AU - Zhang,H
AU - Zhang,S
AU - Zhao,J
AU - Agapitos,A
AU - Ban,Y
AU - Che
DO - 10.1103/PhysRevD.104.032006
EP - 26
PY - 2021///
SN - 1550-2368
SP - 1
TI - Search for top squarks in final states with two top quarks and several light-flavor jets in proton-proton collisions at root s=13 TeV
T2 - Physical Review D: Particles, Fields, Gravitation and Cosmology
UR - http://dx.doi.org/10.1103/PhysRevD.104.032006
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000686913600002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.104.032006
UR - http://hdl.handle.net/10044/1/91347
VL - 104
ER -