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035 _a(RuTPU)RU\TPU\network\34549
090 _a663380
100 _a20210209a2019 k y0engy50 ba
101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aMeasurement of the branching fractions of the decays D+ → K−K+K+, D+ → π−π+K+ and D+s → π−K+K+
_fR. Aaij, C. A. Beteta, B. Adeva [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 21 tit.]
330 _aThe 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.
461 _tJournal of High Energy Physics
463 _tVol. 2019, iss. 3
_v[176, 23 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _acharm physics
610 1 _aBranching fraction
610 1 _aflavor physics
610 1 _aHadron-Hadron scattering (experiments)
701 1 _aAaij
_bR.
_gRoel
701 1 _aBeteta
_bC. A.
_gCarlos Abellan
701 1 _aAdeva
_bB.
_gBernardo
701 1 _aShapkin
_bM. M.
_gMikhail Mikhaylovich
701 1 _aPanshin
_bG. L.
_cspecialist in the field of informatics and computer technology
_cAssistant of the Department of Tomsk Polytechnic University
_f1987-
_gGennady Leonidovich
_2stltpush
_3(RuTPU)RU\TPU\pers\40978
701 1 _aStrokov
_bS. A.
_cphysicist
_cengineer of Tomsk Polytechnic University
_f1977-
_gSergey Aleksandrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37442
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа информационных технологий и робототехники
_bОтделение автоматизации и робототехники (ОАР)
_h7952
_2stltpush
_3(RuTPU)RU\TPU\col\23553
801 2 _aRU
_b63413507
_c20210209
_gRCR
856 4 _uhttps://doi.org/10.1007/JHEP03(2019)176
942 _cCF