The branching fractions of the doubly Cabibbo-suppressed decays D+ → K− K+ K+, D+ → π− π+ K+ and Ds+ → π− K+ K+ are measured using the decays D+ → K− π+ π+ and Ds+ → 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 are 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.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Measurement of the Branching Fractions of the Decays D+ → K− K+ K+, D+ → π− π+ K+ and Ds+ → π− K+ K+. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3), 0-23 [10.1007/JHEP03(2019)176].

Measurement of the Branching Fractions of the Decays D+ → K− K+ K+, D+ → π− π+ K+ and Ds+ → π− K+ K+

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Vagnoni, V.;Zucchelli, S.
2019

Abstract

The branching fractions of the doubly Cabibbo-suppressed decays D+ → K− K+ K+, D+ → π− π+ K+ and Ds+ → π− K+ K+ are measured using the decays D+ → K− π+ π+ and Ds+ → 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 are 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.
2019
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Measurement of the Branching Fractions of the Decays D+ → K− K+ K+, D+ → π− π+ K+ and Ds+ → π− K+ K+. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3), 0-23 [10.1007/JHEP03(2019)176].
Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C.A.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/688166
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