/ Experiment-HEP hep-ex/0112023


Study of the K- ---> pi0 e- nu decay


Ajinenko, I.V. (Serpukhov, IHEP) ; Akimenko, S.A. (Serpukhov, IHEP) ; Akopdzhanov, G.A. (Serpukhov, IHEP) ; Belous, K.S. (Serpukhov, IHEP) ; Britvich, I.G. (Serpukhov, IHEP) ; Britvich, G.I. (Serpukhov, IHEP) ; Filin, A.P. (Serpukhov, IHEP) ; Govorun, V.N. (Serpukhov, IHEP) ; Inyakin, A.V. (Serpukhov, IHEP) ; Konstantinov, V.F. (Serpukhov, IHEP) ; Konstantinov, A.S. (Serpukhov, IHEP) ; Korolkov, I.Y. (Serpukhov, IHEP) ; Khmelnikov, V.A. (Serpukhov, IHEP) ; Leontiev, V.M. (Serpukhov, IHEP) ; Novikov, V.P. (Serpukhov, IHEP) ; Obraztsov, V.F. (Serpukhov, IHEP) ; Polyakov, V.A. (Serpukhov, IHEP) ; Romanovsky, V.I. (Serpukhov, IHEP) ; Ronjin, V.M. (Serpukhov, IHEP) ; Senko, V.A. (Serpukhov, IHEP) ; Shalanda, N.A. (Serpukhov, IHEP) ; Shapkin, M.M. (Serpukhov, IHEP) ; Shelikhov, V.I. (Serpukhov, IHEP) ; Smirnov, N.E. (Serpukhov, IHEP) ; Sokolov, A.A. (Serpukhov, IHEP) ; Tchikilev, O.G. (Serpukhov, IHEP) ; Vlasov, E.V. (Serpukhov, IHEP) ; Yushchenko, O.P. (Serpukhov, IHEP) ; Bolotov, V.N. (Moscow, INR) ; Laptev, S.V. (Moscow, INR) ; Polyarush, A.Yu. (Moscow, INR) ; Postoev, V.E. (Moscow, INR) ; Yaschenko, S.V. (Dubna, JINR) ; Zalikhanov, B.Z. (Dubna, JINR) ; Serdyuk, V.Z. (Dubna, JINR)

Published in: Phys.Atom.Nucl. / Yad.Fiz.
Year: 2002 / 2002
Vol.: 65 / 65
Page No: 2064-2069 / 2125-2130
Pages: 11

Abstract: The decay K- -> pi0 e- nu has been studied using in-flight decays detected with 'ISTRA+' setup operating at the 25 GeV negative secondary beam of the U-70 PS. About 130K events were used for the analysis. The lambda_+ parameter of the vector formfactor has been measured: lambda_+ = 0.0293 +- 0.0015(stat) +- 0.002(syst). The limits on the possible tensor and scalar couplings have been derived: f_T/f_+(0)=-0.044 +0.059 -0.057 (stat) f_S/f_+(0)=-0.020 +0.025 -0.016 (stat)

Web-Page: http://link.aip.org/link/?atn/65/2064; http://pdglive.lbl.gov/REFERENCE_info1.brl?slacrpp=PANUE,65,2064

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