Precision measurement of the Xi(0) mass and the branching ratios of the decays Xi(0) -> Lambda gamma and Xi(0) -> Sigma(0)gamma

Authors
Fanti, V Lai, A Marras, D Musa, L Nappi, A Hay, B Moore, KN Moore, RW Munday, DJ Needham, MD Parker, MA White, TO Wotton, SA Barr, G Blumer, H Bocquet, G Bremer, J Ceccucci, A Cogan, J Cundy, D Doble, N Fischer, G Funk, W Gatignon, L Gianoli, A Gonidec, A Govi, G Grafstrom, P Lacourt, A Luitz, S Marzulli, V Matheys, JP Norton, A Palestini, S Panzer-Steindel, B Schinzel, D Taureg, H Velasco, M Vossnack, O Wahl, H Wirrer, G Gaponenko, A Kekelidze, V Madigojine, D Mestvirishvili, A Molokanova, N Potrebenikov, Y Tatishvili, G Tkatchev, A Zinchenko, A Boyle, O Knowles, IG Martin, VJ Parsons, H Contalbrigo, M Dalpiaz, P Duclos, J Formica, A Frabetti, PL Martini, M Petrucci, F Savrie, M Bizzeti, A Calvetti, M Collazuol, G Graziani, G Iacopini, E Lenti, M Michetti, A Talamonti, C Becker, HG Coward, D Ebersberger, C Fox, H Kalter, A Kleinknecht, K Koch, U Kopke, L Renk, B Scheidt, J Schmidt, J Schue, Y Schonharting, V Wilhelm, R Wittgen, M Chollet, JC Crepe, S Fayard, L Iconomidou-Fayard, L Ocariz, J Unal, G Wingerter, I Anzivino, G Cenci, P Lubrano, P Pepe, M Calafiura, P Carosi, R Casali, R Cerri, C Cirilli, M Costantini, F Fantechi, R Giudici, S Gorini, B Mannelli, I Pierazzini, G Sozzi, M Cheze, JB De Beer, M Debu, P de Cassagnac, RG Hristov, P Mazzucato, E Peyaud, B Schanne, S Turlay, R Vallage, B Augustin, I Bender, M Holder, M Ziolkowski, M Arcidiacono, R Biino, C Cester, R Marchetto, F Menichetti, E Pastrone, N Nassalski, J Rondio, E Szleper, M Wislicki, W Wronka, S Dibon, H Jeitler, M Markytan, M Mikulec, I Neuhofer, G Pernicka, M Taurok, A
Citation
V. Fanti et al., Precision measurement of the Xi(0) mass and the branching ratios of the decays Xi(0) -> Lambda gamma and Xi(0) -> Sigma(0)gamma, EUR PHY J C, 12(1), 2000, pp. 69-76
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
12
Issue
1
Year of publication
2000
Pages
69 - 76
Database
ISI
SICI code
1434-6044(200001)12:1<69:PMOTXM>2.0.ZU;2-9
Abstract
A new precision measurement of the Xi(0) mass has been performed at the NA4 8 experiment at the CERN SPS. The value obtained is [1319.82+/-0.06 (stat.) +/-0.2 (syst.)] MeV/c(2). The branching ratios of Xi(0) radiative decays h ave been measured as: Br(Xi --> Lambda gamma) = [1.90 +/- 0.34(stat.) +/- 0 .19(syst.)].10(-3) and Br(Xi --> Sigma(0)gamma) = [3.14 +/- 0.76(stat.) +/- 0.32(syst.).10(-3).