par Sirunyan, A.M.;Beghin, Diego
;Bilin, Bugra
;Clerbaux, Barbara
;De Lentdecker, Gilles
;Delannoy, Hugo
;Dorney, Brian
;Favart, Laurent
;Grebenyuk, Anastasia
;Kalsi, Amandeep Kaur
;Moureaux, Louis
;Popov, Andrey
;Postiau, Nicolas
;Starling, Elizabeth Rose
;Thomas, Laurent
;Vander Velde, Catherine
;Vanlaer, Pascal
;Vannerom, David
;Malara, Andrea
; [et al.]
Référence Physics letters. Section B, 803, 135345
Publication Publié, 2020-04-20


















Référence Physics letters. Section B, 803, 135345
Publication Publié, 2020-04-20
Article révisé par les pairs
Résumé : | A study of excited baryons is reported, based on a data sample collected in 2016–2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140. The existence of four excited states: , , , and in the mass spectrum is confirmed, and their masses are measured. The mass distribution exhibits a broad excess of events in the region of 6040–6100 MeV, whose origin cannot be discerned with the present data. |