Measurement of the branching fractions of the decays D+ → K−K+K+, D+ → π−π+K+ and D+s → π−K+K+; Journal of High Energy Physics; Vol. 2019, iss. 3

Measurement of the branching fractions of the decays D+ → K−K+K+, D+ → π−π+K+ and D+s → π−K+K+; Journal of High Energy Physics; Vol. 2019, iss. 3

Bibliografische gegevens
Parent link:Journal of High Energy Physics
Vol. 2019, iss. 3.— 2019.— [176, 23 p.]
Coauteurs: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники
Andere auteurs: Aaij R. Roel, Beteta C. A. Carlos Abellan, Adeva B. Bernardo, Shapkin M. M. Mikhail Mikhaylovich, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich
Samenvatting:Title screen
The branching fractions of the doubly Cabibbo-suppressed decays D+ → K−K+K+, D+ → π−π+K+ and D+s → π−K+K+ are measured using the decays D+ → K−π+π+ and D+s → K−K+π+ as normalisation channels. The measurements are performed using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb−1. The results areB(D+→K−K+K+)B(D+→K−π+π+)=(6.541±0.025±0.042)×10−4,B(D+→ π−π+K+)B(D+→K−π+π+)=(5.231±0.009±0.023)×10−3,B(D+s→ π−K+K+)B(D+s→K−K+π+),=(2.372±0.024±0.025)×10−3,B(D+→K−K+K+)B(D+→K−π+π+)=(6.541±0.025±0.042)×10−4,B(D+→ π−π+K+)B(D+→K−π+π+)=(5.231±0.009±0.023)×10−3,B(Ds+→ π−K+K+)B(Ds+→K−K+π+),=(2.372±0.024±0.025)×10−3,where the uncertainties are statistical and systematic, respectively. These are the most precise measurements up to date.
Taal:Engels
Gepubliceerd in: 2019
Onderwerpen:
электронный ресурс
труды учёных ТПУ
charm physics
Branching fraction
flavor physics
Hadron-Hadron scattering (experiments)
Online toegang:https://doi.org/10.1007/JHEP03(2019)176
Formaat: Elektronisch Hoofdstuk
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663380

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