Details

Autor(en) / Beteiligte

• Yushchenko, O. P.
• Kurshetsov, V. F.
• Filin, A. P.
• Akimenko, S. A.
• Artamonov, A. V.
• Blik, A. M.
• Brekhovskikh, V. V.
• Burtovoy, V. S.
• Donskov, S. V.
• Inyakin, A. V.
• Gorin, A. M.
• Khaustov, G. V.
• Kholodenko, S. A.
• Kolosov, V. N.
• Konstantinov, A. S.
• Leontiev, V. M.
• Lishin, V. A.
• Medynsky, M. V.
• Mikhailov, Yu. V.
• Obraztsov, V. F.
• Polyakov, V. A.
• Popov, A. V.
• Romanovsky, V. I.
• Rykalin, V. I.
• Sadovsky, A. S.
• Samoilenko, V. D.
• Semenov, V. K.
• Stenyakin, O. V.
• Tchikilev, O. G.
• Uvarov, V. A.
• Duk, V. A.
• Filippov, S. N.
• Guschin, E. N.
• Kudenko, Yu. G.
• Khudyakov, A. A.
• Kravtsov, V. I.
• Polyarush, A. Yu
• Bychkov, V. N.
• Kekelidze, G. D.
• Lysan, V. M.
• Zalikhanov, B. Zh

Titel

Ke3 Decay Studies in the OKA Experiment

Ist Teil von

• JETP letters, 2018-04, Vol.107 (3), p.139-142

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Recent results from OKA setup concerning form factor studies in K e 3 decay are presented. About 5.25 M events obtained for decays of 17.7 GeV/ c K + are selected for the analysis. The linear and quadratic slopes for the decay form factor f + ( t ) are measured: λ' + = 2.95 ± 0.022 ± 0.018 × 10 -2 for the linear slope fit and λ + = 2.611 ± 0.035 ± 0.028 × 10 -2 , λ" + = 1.91 ± 0.19 ± 0.14 × 10 -3 for the quadratic one. The scalar and tensor contributions are compatible with zero. Several alternative parametrizations are tried: the Pole fit parameter is found to be M V = 891 ± 3 MeV; the parameter of the dispersive parametrization is measured to be Λ + = 2.458 ± 0.018 × 10 -2 .