BibTex format
@article{Hayrapetyan:2025:10.1016/j.physletb.2024.139088,
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, CE and Darwish, MR and Janssen, T and Van, Mechelen P and Bols, ES and D'Hondt, J and Dansana, S and De, Moor A and Delcourt, M and Lowette, S and Makarenko, I and Müller, D 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 Evard, H and Favart, L and Gianneios, P and Hohov, D and Jaramillo, J and Khalilzadeh, A and Khan, FA and Lee, K and Mahdavikhorrami, M and Malara, A and Paredes, S 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, Amarilo K and Rendón, C and Samalan, A},
doi = {10.1016/j.physletb.2024.139088},
journal = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics},
title = {Girth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at s<inf><inf>NN</inf></inf>=5.02 TeV},
url = {http://dx.doi.org/10.1016/j.physletb.2024.139088},
volume = {861},
year = {2025}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - This Letter presents the first measurements of the groomed jet radius Rg and the jet girth g in events with an isolated photon recoiling against a jet in lead-lead (PbPb) and proton-proton (pp) collisions at the LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The observables Rg and g provide a quantitative measure of how narrow or broad a jet is. The analysis uses PbPb and pp data samples with integrated luminosities of 1.7 nb−1 and 301 pb−1, respectively, collected with the CMS experiment in 2018 and 2017. Events are required to have a photon with transverse momentum pTγ>100 GeV and at least one jet back-to-back in azimuth with respect to the photon and with transverse momentum pTjet such that pTjet/pTγ>0.4. The measured Rg and g distributions are unfolded to the particle level, which facilitates the comparison between the PbPb and pp results and with theoretical predictions. It is found that jets with pTjet/pTγ>0.8, i.e., those that closely balance the photon pTγ, are narrower in PbPb than in pp collisions. Relaxing the selection to include jets with pTjet/pTγ>0.4 reduces the narrowing of the angular structure of jets in PbPb relative to the pp reference. This shows that selection bias effects associated with jet energy loss play an important role in the interpretation of jet substructure measurements.
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,CE
AU - Darwish,MR
AU - Janssen,T
AU - Van,Mechelen P
AU - Bols,ES
AU - D'Hondt,J
AU - Dansana,S
AU - De,Moor A
AU - Delcourt,M
AU - Lowette,S
AU - Makarenko,I
AU - Müller,D
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 - Evard,H
AU - Favart,L
AU - Gianneios,P
AU - Hohov,D
AU - Jaramillo,J
AU - Khalilzadeh,A
AU - Khan,FA
AU - Lee,K
AU - Mahdavikhorrami,M
AU - Malara,A
AU - Paredes,S
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 - Jain,S
AU - Lemaitre,V
AU - Lidrych,J
AU - Mastrapasqua,P
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
DO - 10.1016/j.physletb.2024.139088
PY - 2025///
SN - 0370-2693
TI - Girth and groomed radius of jets recoiling against isolated photons in lead-lead and proton-proton collisions at s<inf><inf>NN</inf></inf>=5.02 TeV
T2 - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
UR - http://dx.doi.org/10.1016/j.physletb.2024.139088
VL - 861
ER -