arxiv: hep-ex/0112023 · v1 · submitted 2001-12-17 · ✦ hep-ex

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

I.Ajinenko , S.Akimenko , G.Akopdzhanov , K.Belous , I.Britvich , G.Britvich , A.Filin , V.Govorun

show 31 more authors

A.Inyakin V.Konstantinov A.Konstantinov I.Korolkov V.Khmelnikov V.Leontiev V.Novikov V.Obraztsov V.Polyakov V.Romanovsky V.Ronjin V.Senko N.Shalanda M.Shapkin V.Shelikhov N.Smirnov A.Sokolov O.Tchikilev E.Vlasov O.Yushchenko (IHEP Protvino Russia) V.Bolotov S.Laptev A.Polyarush V.Postoev (INR Moscow Russia) S.Yaschenko B.Zalikhanov V.Serdyuk (JINR Dubna Russia)

This is my paper

classification ✦ hep-ex

keywords beenstatdecaylambdaanalysisbeamcouplingsdecays

0 comments

read the original 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)

This paper has not been read by Pith yet.

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

discussion (0)