Semileptonic decay λb>λc+τ-+ν- in the covariant confined quark model; Physical Review D; Vol. 91, iss. 7

Semileptonic decay λb>λc+τ-+ν- in the covariant confined quark model; Physical Review D; Vol. 91, iss. 7

書目詳細資料
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 91, iss. 7.— 2015.— [074001]
企業作者:	Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра высшей математики и математической физики (ВММФ)
其他作者:	Gutsche T. Thomas, Ivanov M. A. Mikhail, Korner Ju. G. Jurgen, Santorelli P. Pietro, Haby N. Nurgul, Lyubovitskiy (Lyubovitskij) V. E. Valery Efimovich
總結:	Title screen [Semileptonic decay Lambda_b -> Lambda_c + tau- + antinu_tau in the covariant confined quark model] Recently there has been much interest in the tauonic semileptonic meson decays B>D+?+?? and B>D*+?+??, where one has found larger rates than what is predicted by the Standard Model. We analyze the corresponding semileptonic baryon decays ?b0>?c++?-+??? with particular emphasis on the lepton helicity flip and scalar contributions which vanish for zero lepton masses. We calculate the total rate, the differential decay distributions, the longitudinal and transverse polarization of the daughter baryon ?c+ and the ? lepton, and the lepton-side forward-backward asymmetries. The nonvanishing polarization of the daughter baryon ?c+ leads to hadron-side asymmetries in e.g. the decay ?c+>?0+?+ and azimuthal correlations between the two final-state decay planes which we specify. We provide numerical results on these observables using results of the covariant confined quark model. We find large lepton mass effects in the q2 spectra and in the polarization observables. Режим доступа: по договору с организацией-держателем ресурса
語言:	英语
出版:	2015
主題:	электронный ресурс труды учёных ТПУ
在線閱讀:	http://dx.doi.org/10.1103/PhysRevD.91.074001
格式:	電子 Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641906

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