Study of the isovector scalar mesons in the channel [formula omitted] at rest with initial angular momentum state selection

A Bertin,D D'Isep,L Busso,M Poli,A Vitale,A Rosca,A Feliciello,A Grasso,S Mauro,S De Castro,F Tosello,A.M Rozhdestvensky,F Vigotti,V Lucherini,C Guaraldo,G Bendiscioli,G Maron,F Nichitiu,E Lodi Rizzini,O.E Gorchakov,S Vecchi,G Vedovato,M Corradini,V Filippini,A Benedettini,A Filippi,S Serci,D Galli,D Panzieri,U Gastaldi,P Cerello,L Venturelli,M Capponi,S Marcello,A Saino,C Cavion,L Santi,C Petrascu,S Tessaro,L Ferrero,U Marconi,D Calvo,V Vagnoni,R Garfagnini,M.P Bussa,G Puddu,F Balestra,A Maggiora,L Valacca,E Rossetto,T Bressani ,О Денисов ,P Salvini ,G Zosi ,G L Usai ,M Bruschi ,A Lanaro ,V.g Ableev ,B Minetti ,B Giacobbe ,S Costa ,E Botta ,R Spighi ,S Prakhov ,A Zenoni ,A Masoni ,R A Ricci ,P Gianotti ,G Pauli ,P Temnikov ,C Cicalò ,A Fontana ,M Lombardi ,A Donzella ,R Donà ,M Piccinini ,Caterina Scoglio ,À Zoccoli ,P Montagna ,M Villa ,V.i Tretyak ,M Agnello ,M G Sapozhnikov ,Nicola Semprini Cesari ,A Rotondi ,A Ferretti ,F Iazzi

doi:10.1016/s0370-2693(98)00767-9

Study of the isovector scalar mesons in the channel [formula omitted] at rest with initial angular momentum state selection

A Bertin, D D'Isep + Show 85 more

https://doi.org/10.1016/s0370-2693(98)00767-9

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Journal: Physics Letters B	Publication Date: Aug 1, 1998
Citations: 24

Affiliation: INFN Sezione di Bologna, University of Bologna, University of Turin, Joint Institute for Nuclear Research, University of Pavia, University of Brescia, University of Cagliari

#Target Densities #Extra State + Show 8 more

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Abstract

The study of the I=1, J PC =0 ++ states with the OBELIX detector in the channel p ̄ p→K ±K 0 Sπ ∓ at three different target densities is reported. The data show the evidence for an extra scalar state with mass 1.29±0.01 GeV/ c 2 and width 0.080±0.005 GeV/ c 2.

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