Searches for isospin-violating transitions χc0,2 → π0ηc /M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]

Электронный ресурс
Другой Автор
Ablikim, M.
Ai, X. C.
Chelkov, G. A.
Achasov, M. N.
Источник
Physical Review D 2015 Vol. 91, № 11. P. 112018-1-112018-9
Аннотация
We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions χc0,2→π0ηc. The measurements are performed using 106×106 ψ(3686) events accumulated with the BESIII detector at the BEPCII e+e− collider at a center-of-mass energy corresponding to the ψ(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(χc0→π0ηc)<1.6×10−3 and B(χc2→π0ηc)<3.2×10−3.
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$a Searches for isospin-violating transitions χc0,2 → π0ηc $c M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
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$a We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions χc0,2→π0ηc. The measurements are performed using 106×106 ψ(3686) events accumulated with the BESIII detector at the BEPCII e+e− collider at a center-of-mass energy corresponding to the ψ(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(χc0→π0ηc)<1.6×10−3 and B(χc2→π0ηc)<3.2×10−3.
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$a BESIII, детектор
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$a BEPCII, коллайдер
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$a статьи в журналах
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$a Ablikim, M.
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$a Ai, X. C.
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$a Chelkov, G. A.
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$a Achasov, M. N.
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$a Томский государственный университет $b Радиофизический факультет $b Научные подразделения РФФ
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$t Physical Review D $d 2015 $g Vol. 91, № 11. P. 112018-1-112018-9 $x 1550-7998
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$u http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000529854
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Предмет
статьи в журналах
Резюме
We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions χc0,2→π0ηc. The measurements are performed using 106×106 ψ(3686) events accumulated with the BESIII detector at the BEPCII e+e− collider at a center-of-mass energy corresponding to the ψ(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(χc0→π0ηc)<1.6×10−3 and B(χc2→π0ηc)<3.2×10−3.