ENERGY-DEPENDENT MEASUREMENTS OF THE PP ELASTIC ANALYZING POWER AND NARROW DIBARYON RESONANCES

Authors
KOBAYASHI Y KOBAYASHI K NAKAGAWA T SHIMIZU H YOSHIDA HY OHNUMA H HOLT JA GLASS G HIEBERT JC KENEFICK RA NATH S NORTHCLIFFE LC SIMON AJ HIRAMATSU S MORI Y SATO H TAKAGI A TOYAMA T UENO A IMAI K
Citation
Y. Kobayashi et al., ENERGY-DEPENDENT MEASUREMENTS OF THE PP ELASTIC ANALYZING POWER AND NARROW DIBARYON RESONANCES, Nuclear physics. A, 569(4), 1994, pp. 791-820
Citations number
34
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
569
Issue
4
Year of publication
1994
Pages
791 - 820
Database
ISI
SICI code
0375-9474(1994)569:4<791:EMOTPE>2.0.ZU;2-X
Abstract
The energy dependence of the pp elastic analyzing power has been measu red using an internal target during polarized beam acceleration. The d ata were obtained in incident-energy steps varying from 4 to 17 MeV ov er an energy range from 0.5 to 2.0 GeV. The statistical uncertainty of the analyzing power is typically less than 0.01. A narrow structure i s observed around 2.17 GeV in the two-proton invariant mass distributi on. A possible explanation for the structure with narrow resonances is discussed.