BibTex format
@article{Hayrapetyan:2026:10.1007/JHEP07(2026)102,
author = {Hayrapetyan, A and Makarenko, V and Tumasyan, A and Adam, W and Benato, L and Bergauer, T and Dragicevic, M and Hussain, PS and Jeitler, M and Krammer, N and Li, A and Liko, D and Matthewman, M and Schieck, J and Schöfbeck, R and Shooshtari, M and Sonawane, M and Waltenberger, W and Wulz, CE and Janssen, T and Kwon, H and Ocampo, Henao D and Van, Laer T and Van, Mechelen P and Bierkens, J and Breugelmans, N and DHondt, J and Dansana, S and De, Moor A and Delcourt, M and Heyen, F and Hong, Y and Kashko, P 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 Bilin, B and Clerbaux, B and Das, AK and De, Bruyn I and De, Lentdecker G and Evard, H and Favart, L and Gianneios, P and Khalilzadeh, A and Khan, FA and Malara, A and Shahzad, MA and Sharma, A and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and Zhang, F and De, Coen M and Dobur, D and Giordano, C and Gokbulut, G and Kaspar, K and Kav},
doi = {10.1007/JHEP07(2026)102},
journal = {Journal of High Energy Physics},
title = {Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at s=13 TeV},
url = {http://dx.doi.org/10.1007/JHEP07(2026)102},
volume = {2026},
year = {2026}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Gauge-mediated supersymmetry-breaking models provide a strong motivation to search for a supersymmetric partner of the tau lepton (stau) with a macroscopic lifetime. Long-lived stau decays produce tau leptons that are displaced from the primary proton-proton interaction vertex, leading to an unconventional signature. This paper presents a search for the direct production of long-lived staus decaying within the CMS tracker volume in proton-proton collisions at s=13 TeV, performed for the first time with an identification algorithm based on a graph neural network dedicated to displaced tau leptons. The data sample, corresponding to an integrated luminosity of 138 fb<sup>−1</sup>, was recorded with the CMS experiment at the CERN LHC between 2016 and 2018. This search excludes, at 95% confidence level, stau masses, mτ~, in the 126–260 (90–425) GeV range for a proper decay length of 50 mm in the maximally mixed (mass-degenerate) scenario, while for mτ~=200 GeV, stau proper decay lengths are excluded in the range 21–94 (6–333) mm. These results improve the exclusion limits compared to previous searches, and extend the parameter space explored in the context of supersymmetry.
AU - Hayrapetyan,A
AU - Makarenko,V
AU - Tumasyan,A
AU - Adam,W
AU - Benato,L
AU - Bergauer,T
AU - Dragicevic,M
AU - Hussain,PS
AU - Jeitler,M
AU - Krammer,N
AU - Li,A
AU - Liko,D
AU - Matthewman,M
AU - Schieck,J
AU - Schöfbeck,R
AU - Shooshtari,M
AU - Sonawane,M
AU - Waltenberger,W
AU - Wulz,CE
AU - Janssen,T
AU - Kwon,H
AU - Ocampo,Henao D
AU - Van,Laer T
AU - Van,Mechelen P
AU - Bierkens,J
AU - Breugelmans,N
AU - DHondt,J
AU - Dansana,S
AU - De,Moor A
AU - Delcourt,M
AU - Heyen,F
AU - Hong,Y
AU - Kashko,P
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 - Bilin,B
AU - Clerbaux,B
AU - Das,AK
AU - De,Bruyn I
AU - De,Lentdecker G
AU - Evard,H
AU - Favart,L
AU - Gianneios,P
AU - Khalilzadeh,A
AU - Khan,FA
AU - Malara,A
AU - Shahzad,MA
AU - Sharma,A
AU - Thomas,L
AU - Vanden,Bemden M
AU - Vander,Velde C
AU - Vanlaer,P
AU - Zhang,F
AU - De,Coen M
AU - Dobur,D
AU - Giordano,C
AU - Gokbulut,G
AU - Kaspar,K
AU - Kavtaradze,D
AU - Marckx,D
AU - Skovpen,K
AU - Tomaru,AM
AU - Van,Den Bossche N
AU - van,der Linden J
AU - Vandenbroeck,J
AU - Aarup,Petersen H
AU - Bein,S
AU - Benecke,A
AU - Bethani,A
AU - Bruno,G
AU - Cappati,A
AU - De,Favereau De Jeneret J
AU - Delaere,C
AU - Gameiro,Casalinho F
AU - Giammanco,A
AU - Guzel,AO
AU - Lemaitre,V
AU - Lidrych,J
AU - Malek,P
AU - Mastrapasqua,P
AU - Turkcapar,S
AU - Alves,GA
AU - Barroso,Ferreira Filho M
AU - Coelho,E
AU - Hensel,C
AU - Matos,Figueiredo D
AU - Menezes,De Oliveira T
AU - Mora,Herrera C
AU - Rebello,Teles P
AU - Soeiro,M
AU - Tonelli,Manganote EJ
AU - Vilela,Pereira A
AU - Aldá,Júnior WL
AU - Brandao,Malbouisson H
DO - 10.1007/JHEP07(2026)102
PY - 2026///
TI - Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at s=13 TeV
T2 - Journal of High Energy Physics
UR - http://dx.doi.org/10.1007/JHEP07(2026)102
VL - 2026
ER -