Upper limit on the decay Sigma(1385)(-) -> Sigma(-)gamma and cross section for gamma Sigma(-) -> Lambda pi(-)

Molchanov, VV; Alkhazov, G; Atamantchouk, AG; Balatz, MY; Bondar, NF; Casey, D; Cooper, PS; Dauwe, LJ; Davidenko, GV; Dersch, U; Dolgolenko, AG; Dzyubenko, GB; Edelstein, R; Emediato, L; Endler, AMF; Engelfried, J; Eschrich, I; Escobar, CO; Evdokimov, AV; Ferbel, T; Filimonov, IS; Garcia, FG; Gaspero, M; Giller, I; Golovtsov, VL; Gouffon, P; Gulmez, E; Hammer, C; Kangling, H; Iori, M; Jun, SY; Kaya, M; Kilmer, J; Kim, VT; Kochenda, LM; Konorov, I; Kozhevnikov, AP; Krivshich, AG; Kruger, H; Kubantsev, MA; Kubarovsky, VP; Kulyavtsev, AI; Kuropatkin, NP; Kurshetsov, VF; Kushnirenko, A; Kwan, S; Lach, J; Lamberto, A; Landsberg, LG; Larin, I; Leikin, EM; Yunshan, L; Luksys, M; Lungov, T; Maleev, VP; Mao, D; Chensheng, M; Zhenlin, M; Mathew, P; Mattson, M; Matveev, V; McCliment, E; Moinester, MA; Morelos, A; Mukhin, VA; Nelson, KD; Nemitkin, AV; Neoustroev, PV; Newsom, C; Nilov, AP; Nurushev, SB; Ocherashvili, A; Onel, Y; Ozel, E; Ozkorucuklu, SUAT; Penzo, A; Petrenko, SV; Pogodin, P; Procario, M; Prutskoi, VA; Ramberg, E; Rappazzo, GF; Razmyslovich, BV; Rud, VI; Russ, J; Schiavon, P; Simon, J; Sitnikov, AI; Skow, D; Slattery, P; Smith, VJ; Srivastava, M; Steiner, V; Stepanov, V; Stutte, L; Svoiski, M; Terentyev, NK; Thomas, GP; Uvarov, LN; Vasiliev, AN; Vavilov, DV; Verebryusov, VS; Victorov, VA; Vishnyakov, VE; Vorobyov, AA; Vorwalter, K; You, J; Zhao, WH; Zheng, SC; Zhu, ZH; Zielinski, M; Zukanovich-Funchal, R

doi:10.1016/j.physletb.2004.04.006

Upper limit on the decay Sigma(1385)(-) -> Sigma(-)gamma and cross section for gamma Sigma(-) -> Lambda pi(-)

Molchanov V., Alkhazov G., Atamantchouk A., Balatz M., Bondar N., Casey D., ...More

PHYSICS LETTERS B, vol.590, pp.161-169, 2004 (SCI-Expanded, Scopus)

Publication Type: Article / Article
Volume: 590
Publication Date: 2004
Doi Number: 10.1016/j.physletb.2004.04.006
Journal Name: PHYSICS LETTERS B
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.161-169
Istanbul University Affiliated: No

Abstract

Coherent Lambdapi(-) production on Pb of 600 GeV Sigma(-) hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Gamma[Sigma(1385)(-) --> Sigma(-) gamma] < 9.5 keV, and estimate the cross section for gamma Sigma(-) --> Lambdapi(-) at roots approximate to 1.385 GeV to be 56 +/- 16 mub. Crown Copyright (C) 2004 Published by Elsevier B.V. All rights reserved.