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Title: | New Structures in the J/ψJ/ψ Mass Spectrum in Proton-Proton Collisions at √s = 13 TeV |
Authors: | Hayrapetyan, A Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Damanakis, K Dragicevic, M Escalante Del Valle, A Hussain, PS Jeitler, M Mahdavikhorrami, M Malara, A Paredes, S Pétré, L Postiau, N Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P De Coen, M Dobur, D Hong, Y Knolle, J Lambrecht, L Mestdach, G Rendón, C Samalan, A Skovpen, K Van Den Bossche, N Wezenbeek, L Benecke, A Bruno, G Caputo, C Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Lidrych, J Mastrapasqua, P Mondal, K Tran, TT Wertz, S Alves, GA Coelho, E Hensel, C Menezes De Oliveira, T Moraes, A Rebello Teles, P Soeiro, M Aldá Júnior, WL Alves Gallo Pereira, M Barroso Ferreira Filho, M Brandao Malbouisson, H Carvalho, W Chinellato, J Da Costa, EM Da Silveira, GG Reid, ID De Jesus Damiao, D Fonseca De Souza, S Martins, J Kyberd, P Mora Herrera, C Mota Amarilo, K Khan, A Mundim, L Cole, JE Coldham, K Krammer, N Liko, D Mikulec, I Schieck, J Schöfbeck, R Schwarz, D Sonawane, M Templ, S Waltenberger, W Wulz, CE Darwish, MR Janssen, T Van Mechelen, P Bols, ES D’Hondt, J Dansana, S De Moor, A Delcourt, M El Faham, H Lowette, S Makarenko, I Müller, D Sahasransu, AR Tavernier, S Tytgat, M Van Putte, S Vannerom, D Clerbaux, B De Lentdecker, G Favart, L Hohov, D Jaramillo, J Khalilzadeh, A Lee, K |
Keywords: | exotic mesons;heavy mesons;hadron colliders;particles and fields |
Issue Date: | 15-Mar-2024 |
Publisher: | American Physical Society |
Citation: | Hayrapetyan, A. et al for the benefit of the CMS Collaboration (2024) 'New Structures in the J/ψJ/ψ Mass Spectrum in Proton-Proton Collisions at √s = 13 TeV', Physical Review Letters, 2024, 132 (11), 111901, pp. 1 - 20. doi: 10.1103/PhysRevLett.132.111901. |
Abstract: | A search is reported for near-threshold structures in the Formula Presented invariant mass spectrum produced in proton-proton collisions at √s = 13 TeV from data collected by the CMS experiment, corresponding to an integrated luminosity of 135 fb−1. Three structures are found, and a model with quantum interference among these structures provides a good description of the data. A new structure is observed with a local significance above 5 standard deviations at a mass of 6638 +43−38(stat)+16−31(syst) MeV. Another structure with even higher significance is found at a mass of 6847 +44−28(stat)+48−20(syst) MeV,, which is consistent with the X (6900) resonance reported by the LHCb experiment and confirmed by the ATLAS experiment. Evidence for another new structure, with a local significance of 4.7 standard deviations, is found at a mass of 7134 +48−25(stat)+41−15(syst) MeV.. Results are also reported for a model without interference, which does not fit the data as well and shows mass shifts up to 150 MeV relative to the model with interference. |
Description: | Supplemental Material: The auxiliary material includes the J/ J/ invariant mass spectrum for the full range of the fit, as well as a direct comparison with the results from LHCb by using their two principal models is available online at: https://journals.aps.org/prl/supplemental/10.1103/PhysRevLett.132.111901/BPH-21-003_supp-jnl.pdf . The accepted manuscript is available at OSTI, https://www.osti.gov/biblio/1988522. OSTI ID: 1988522 Report Number(s): CMS-BPH-21-003; CERN-EP-2023-109; FERMILAB-PUB-23-315-CMS; arXiv:2306.07164; oai:inspirehep.net:2668013 |
URI: | https://bura.brunel.ac.uk/handle/2438/28770 |
DOI: | https://doi.org/10.1103/PhysRevLett.132.111901 |
ISSN: | 0031-9007 |
Other Identifiers: | ORCiD: A. Tumasyan https://orcid.org/0009-0000-0684-6742 ORCiD: Joanne E Cole https://orcid.org/0000-0001-5638-7599 ORCiD: Akram Khan https://orcid.org/0000-0002-4597-4402 ORCiD: Paul Kyberd https://orcid.org/0000-0002-7353-7090 ORCiD: Ivan D Reid https://orcid.org/0000-0002-9235-779X 111901 1988522 CMS-BPH-21-003 CERN-EP-2023-109 FERMILAB-PUB-23-315-CMS arXiv:2306.07164 oai:inspirehep.net:2668013 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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