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Study of the K- -> pi0 e- nu decay | I.Ajinenko
; S.Akimenko
; G.Akopdzhanov
; K.Belous
; I.Britvich
; G.Britvich
; A.Filin
; V.Govorun
; 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 V.Bolotov
; S.Laptev
; A.Polyarush
; V.Postoev S.Yaschenko
; B.Zalikhanov
; V.Serdyuk
; | Date: |
17 Dec 2001 | Journal: | Phys.Atom.Nucl. 65 (2002) 2064-2069; Yad.Fiz. 65 (2002) 2125-2130 | Subject: | hep-ex | Affiliation: | IHEP, Protvino, Russia) V.Bolotov, S.Laptev, A.Polyarush, V.Postoev (INR, Moscow, Russia) S.Yaschenko, B.Zalikhanov, V.Serdyuk (JINR, Dubna, Russia | 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) | Source: | arXiv, hep-ex/0112023 | Services: | Forum | Review | PDF | Favorites |
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