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@article{Tumasyan:2022:10.1007/JHEP03(2022)160,
author = {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 Paulitsch, P and Pitters, FM and Schieck, J and Schofbeck, R and Schwarz, D 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, T 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 Delcourt, M and El, Faham H 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 Stylianou, N 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 V},
doi = {10.1007/JHEP03(2022)160},
journal = {The Journal of High Energy Physics},
pages = {1--37},
title = {Search for long-lived particles produced in association with a Z boson in proton-proton collisions at root s=13 TeV},
url = {http://dx.doi.org/10.1007/JHEP03(2022)160},
volume = {2022},
year = {2022}
}

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TY  - JOUR
AB  - A search for long-lived particles (LLPs) produced in association with a Z boson is presented. The study is performed using data from proton-proton collisions with a center-of-mass energy of 13 TeV recorded by the CMS experiment during 2016–2018, corresponding to an integrated luminosity of 117 fb−1. The LLPs are assumed to decay to a pair of standard model quarks that are identified as displaced jets within the CMS tracker system. Triggers and selections based on Z boson decays to electron or muon pairs improve the sensitivity to light LLPs (down to 15 GeV). This search provides sensitivity to beyond the standard model scenarios which predict LLPs produced in association with a Z boson. In particular, the results are interpreted in the context of exotic decays of the Higgs boson to a pair of scalar LLPs (H → SS). The Higgs boson decay branching fraction is constrained to values less than 6% for proper decay lengths of 10–100 mm and for LLP masses between 40 and 55 GeV. In the case of low-mass (≈ 15 GeV) scalar particles that subsequently decay to a pair of b quarks, the search is sensitive to branching fractions B(H → SS) < 20% for proper decay lengths of 10–50 mm. The use of associated production with a Z boson increases the sensitivity to low-mass LLPs of this analysis with respect to gluon fusion searches. In the case of 15 GeV scalar LLPs, the improvement corresponds to a factor of 2 at a proper decay length of 30 mm.
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  - Paulitsch,P
AU  - Pitters,FM
AU  - Schieck,J
AU  - Schofbeck,R
AU  - Schwarz,D
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,T
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  - Delcourt,M
AU  - El,Faham H
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  - Stylianou,N
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  - Wezenbeek,L
AU  - Gao,X
AU  - Cornelis,T
AU  - Dobur,D
AU  - Knolle,J
AU  - Lambrecht,L
AU  - Mestdach,G
AU  - Niedziela,M
AU  - Roskas,C
AU  - Samalan,A
AU  - Skovpen,K
AU  - Tytgat,M
AU  - Vermassen,B
AU  - Vit,M
AU  - Benecke,A
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  - Jaffel,K
AU  - Jain,S
AU  - Lemaitre,V
AU  - Mondal,K
AU  - Prisciandaro,J
AU  - Taliercio,A
AU  - Teklishyn,M
AU  - Tran,TT
AU  - Vischia,P
AU  - Wertz,S
AU  - Alves,GA
AU  - Hensel,C
AU  - Moraes,A
AU  - Alda,Junior WL
AU  - Gallo,Pereira MA
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  - Santoro,A
AU  - Silva,Do Amaral SM
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  - 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  - Javaid,T
AU  - Mittal,M
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  - Iemmi,F
AU  - Kapoor,A
AU  - Leggat,D
AU  - Liao,H
AU  - Liu,Z-A
AU  - Milosevic,V
AU  - Monti,F
AU  - Sharma,R
AU  - Tao,J
AU  - Thomas-wilsker,J
AU  - Wang,J
AU  - Zhan
DO  - 10.1007/JHEP03(2022)160
EP  - 37
PY  - 2022///
SN  - 1029-8479
SP  - 1
TI  - Search for long-lived particles produced in association with a Z boson in proton-proton collisions at root s=13 TeV
T2  - The Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP03(2022)160
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000773937600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007/JHEP03(2022)160
UR  - http://hdl.handle.net/10044/1/96450
VL  - 2022
ER  -

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