Angular distribution and asymmetries in flavor-changing neutral-current decay B → K* l⁺ l⁻
The fully differential angular distribution for the rare flavor-changing neutral current decay Bd⁰ → K*⁰( → K⁻π⁺)e⁺e⁻ is studied. The emphasis is placed on accurate treatment of the contribution from the processes Bd⁰ → K*⁰( → K⁻π⁺)V with intermediate vector resonances V = ρ(770), ω(782), φ(1020), J...
Збережено в:
Дата: | 2012 |
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Автори: | , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2012
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Назва видання: | Вопросы атомной науки и техники |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/107061 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Angular distribution and asymmetries in flavor-changing neutral-current decay B → K* l⁺ l⁻ / A.Yu. Korchin, V.A. Kovalchuk, D.O. Lazarenko // Вопросы атомной науки и техники. — 2012. — № 1. — С. 166-170. — Бібліогр.: 12 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | The fully differential angular distribution for the rare flavor-changing neutral current decay Bd⁰ → K*⁰( → K⁻π⁺)e⁺e⁻ is studied. The emphasis is placed on accurate treatment of the contribution from the processes Bd⁰ → K*⁰( → K⁻π⁺)V with intermediate vector resonances V = ρ(770), ω(782), φ(1020), J/ψ, ψ(2S), … decaying into the e⁺e⁻ pair. The two versions of the vector-meson-dominance model for the transition Vγ are used and tested. The branching ratio, longitudinal polarization fraction of the K*⁰ meson, transverse asymmetry AT⁽²⁾ and forward-backward asymmetry are compared with data from BaBar and CDF, and predictions for experiments at LHCb and B factories are made. |
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