Search for the rare decay of charmed baryon Λc+ into the pμ+μ− final state

R Aaij,E Cogneras,M Atzeni,C Vrahas,J C Smallwood,A Ukleja,G Schwering,D Cervenkov,X Han,K Vos,S J Jaimes Elles,M Guarise,A Usachov,G Bassi,M De Serio,J T Borsuk,W Qian,P Krokovny,P Spradlin,C Kar,J Deng,H Van Hecke,R Mcnulty,W Krupa,M Gandelman,A Seuthe,M Rotondo,J Kubat,S Zhang,F Pisani,R A Ruiz Fernandez,X Cid Vidal,S Mokhnenko,V Obraztsov,A Merli,L Garrido,J Bhom,S A Bouchiba,B D C Westhenry,P Garcia Moreno,S Poslavskii,A Chubykin,C Pappenheimer,D Foulds-Holt,R Vazquez Gomez,V Zhukov,A Boldyrev,C Satriano,J I Cambon Bouzas,J Cogan,F Stagni,J F Marchand,N T Mchugh,K De Bruyn,L Soares Lavra,V Chulikov,L R Madhan Mohan,A Dzyuba,R Lane,L Henry,J Reich,J Hu,P Camargo Magalhaes,J E Davies,S Filippov,Q Shi,M M Halvorsen,Y S Song,C Dong,J H Lopes,M M Duras,A Brea Rodriguez,V Matiunin,L Zhang,J J Saavedra-Arias,M Palutan,M Wang,G Sarpis,M Vieites Diaz,L Carus,R Lindner,A J Chadwick,A Xu,S Kubis,M Argenton,Y Zheng,J Wang,S Yang,B Leverington,F Abudinén,A Perro,M Mccann,R I Rabadan Trejo,H Gao,M Saur,T Oeser,A Egorychev,S Stanislaus,C Langenbruch,M Andersson,X Z Zheng,M Plo Casasus,F Ferrari,L Grazette,L Z Zhu,P Neustroev,E Rodriguez Rodriguez,C Haen,V Bocharnikov,X Zhou,M Ferro-Luzzi,T Li,E Rodriguez Fernandez,J J Malczewski,N S Nolte,H Wu,D Pinci,K G Garg,F L Liu,L Hao,C Lazzeroni,M Ferrillo,A Zharkova,D Marangotto,C Cocha Toapaxi,M Birch,C Burr,A Ustyuzhanin,D Maisuzenko,A R Wiederhold,F Baryshnikov,M Kucharczyk,G Pietrzyk,V Placinta,R Lefèvre,H K Giemza,T Long,R Amalric,N A Grieser,J Ruiz Vidal,J E Blank,K Akiba,G Wang,J H Rademacker,A Correia,Y Zhao,F Fabiano,N Howarth,L Giambastiani,D Nicotra,M S Bieker,M Barbetti,S Akar,M Vesterinen,M A Giza,G Raven,J Horswill,S Perazzini,G Corti,S Vecchi,D Torres Machado,T Nanut,C Mancuso,A Kharisova,S Sheng,A Papanestis,M Hajheidari,J Daniel,C Bozzi,A Kauniskangas,N V Biesuz,C Lucarelli,L Sun,V Yeroshenko,P M Hamilton,B Schmidt,Y Liu,R Manera Escalero,R Bernet,J Lomba Castro,M Stahl,P Campana,M Zdybal,M Rama,L Felkowski,T Li,F 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doi:10.1103/physrevd.110.052007

Search for the rare decay of charmed baryon Λc+ into the pμ+μ− final state

R Aaij, E Cogneras + Show 1086 more

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https://doi.org/10.1103/physrevd.110.052007

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Journal: Physical Review D	Publication Date: Sep 24, 2024
License type: CC BY 4.0

#LHCb Experiment #Branching Fraction #Upper Limit #Confidence Level #Invariant-mass Regions #Contributions Of Resonances #LHCb Collaboration #Proton-proton Collision #Collision Data

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A search for the nonresonant Λc+→pμ+μ− decay is performed using proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb−1. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branching fraction of the Λc+→pμ+μ− decay is determined to be 2.9(3.2)×10−8 at 90%(95%) confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the η, ρ and ω resonances are also determined. © 2024 CERN, for the LHCb Collaboration 2024 CERN

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Search for the rare decay of charmed baryon Λc+ into the pμ+μ− final state

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Search for the rare decay of charmed baryon Λc+ into the pμ+μ− final state

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