ITA
ENG

Study of the gamma gamma decays of the chi(c2)(1(3)P(2)) and chi(c omicron)(1(3)P(omicron)) charmonium resonances - art. no. 052002

Authors

Ambrogiani, M Argiro, S Bagnasco, S Baldini, W Bettoni, D Borreani, G Buzzo, A Calabrese, R Ceccucci, A Cester, R Dalpiaz, P Fan, X Garzoglio, G Gollwitzer, KE Hahn, A Jin, S Kasper, J Lasio, G Lo Vetere, M Luppi, E Maas, P Macri, M Mandelkern, M Marchetto, F Marinelli, M Marsh, W Martini, M Menichetti, E Mussa, R Obertino, MM Pallavicini, M Pastrone, N Patrignani, C Pedlar, TK Peoples, J Pordes, S Robutti, E Roccuzzo, B Rosen, J Rumerio, P Santroni, A Savrie, M Schultz, J Seth, KK Stancari, G Stancari, M Streets, J Tomaradze, A Werkema, S Zioulas, G

Citation

M. Ambrogiani et al., Study of the gamma gamma decays of the chi(c2)(1(3)P(2)) and chi(c omicron)(1(3)P(omicron)) charmonium resonances - art. no. 052002, PHYS REV D, 6205(5), 2000, pp. 2002

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW D

ISSN journal

05562821 → ACNP

Volume

6205

Issue

Year of publication

2000

Database

ISI

SICI code

0556-2821(20000901)6205:5<2002:SOTGGD>2.0.ZU;2-4

Abstract

We report the branching ratios of the chi(c2)(1(3)P(2)) and chi(c0)(1(3)P(0 )) charmonium resonances to two photons using event samples collected by Fe rmilab experiment E835 in the reactions (p) over bar p --> chi(c2)(1(3)P(2) )[chi(c0)(1(3)P(0))] Our result for the chi(c2) is B(chi(c2) --> gamma gamm a) = (1.35 +/- 0.25 +/- 0.12) X 10(-4). We set a 95% upper limit for the ch i(c0) branching ratio B(chi(c0) --> gamma gamma) at 2.09 X 10(-4).