Pregled bibliografske jedinice broj: 165785
Search for exotic baryon resonances in pp collisions at the CERN SPS
Search for exotic baryon resonances in pp collisions at the CERN SPS // Proceedings of the International Workshop PENTAQUARK04 / Hosaka, Atsushi ; Hotta, Tomoaki (ur.).
Singapur: World Scientific Publishing, 2005. str. 35-42 (pozvano predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 165785 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Search for exotic baryon resonances in pp collisions at the CERN SPS
Autori
Kadija, Krešo
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the International Workshop PENTAQUARK04
/ Hosaka, Atsushi ; Hotta, Tomoaki - Singapur : World Scientific Publishing, 2005, 35-42
Skup
PENTAQUARK04
Mjesto i datum
Sayo, Japan, 20.07.2004. - 23.07.2004
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
pentaquark; exotic; observation; NA49; CERN
Sažetak
A search for baryon resonance states with exotic quantum numbers was performed in pp collisions at sqrt(s)=17.2 GeV, with the large acceptance NA49 detector. 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 Xi5-- 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
