Pregled bibliografske jedinice broj: 165177
Observation of a new Pentaquark Candidate State Xi3/2-- in pp Collisions with the NA49 Detector
Observation of a new Pentaquark Candidate State Xi3/2-- in pp Collisions with the NA49 Detector // CERN Particle Physics Seminar
Ženeva, Švicarska, 2003. (predavanje, nije recenziran, pp prezentacija, znanstveni)
CROSBI ID: 165177 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Observation of a new Pentaquark Candidate State Xi3/2-- in pp Collisions with the NA49 Detector
Autori
Kadija, Krešo
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni
Skup
CERN Particle Physics Seminar
Mjesto i datum
Ženeva, Švicarska, 25.11.2003
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
observation; pentaquark; exotic; NA49
Sažetak
Results of resonance searches in the Xi-pi-, Xi-pi+, Xibar+pi- and Xibar+pi+ invariant mass spectra in pp collisions at sqrt(s) = 17.2 GeV will be presented. A narrow resonance with mass of 1.862 +/- 0.002 GeV/c2 and width below the detector resolution of ~ 0.018 GeV/c2 is observed. This state is identified as a candidate for the exotic Xi3/2-- pentaquark baryon with a quark content of (ds ds ubar). At the same mass an indication of a peak is observed in the Xi-pi+, Xibar+pi- and Xibar+pi+ invariant mass spectra. Also, preliminary results of resonance searches in other possible decay chains of the predicted pentaquark states will be presented.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
