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2020•arXiv (Cornell University)Open access

Measurements of Absolute Branching Fractions of Fourteen Exclusive Hadronic $D$ Decays to $\eta$

F. De Mori, Mikhail N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, A. Amoroso, Q. An, Anita, X. H. Bai, Yunhao Bai, Olga Bakina, Rinaldo Baldini Ferroli, I. Balossino, Y. Ban, K. Begzsuren, J. V. Bennett, N. Berger, M. Bertani, D. Bettoni, F. Bianchi, JBiernat, J. Bloms, A. Bortone, Igor R. Boyko, Roy A. Briere, H. Cai, X. Z. Cai, Alessandro Calcaterra, G. F. Cao, Ning Cao, Serkant Ali Cetin, J. F. Chang, W. L. Chang, G. Chelkov, D. Y. Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, X. R. Chen, Y. B. Chen, Wei Cheng, G. Cibinetto, F. Cossio, X. F. Cui, H. L. Dai, J. P. Dai, X. Dai, A. Dbeyssi, R. B. de Boer, D. Dedovich, Z. Y. Deng, A. G. Denig, I. Denysenko, M. Destefanis, F. De Mori, Y. Ding, Chaojiang Dong, J. Dong, L. Y. Dong, M. Y. Dong, S. X. Du, Jian Fang, S. S. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, M. Fritsch, C. D. Fu, Yuan-Yong Fu, X. L. Gao, Y. Gao, Y. Gao, I. Garzia, Evelina Mihova Gersabeck, A. Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, M. Greco, L. M. Gu, M. H. Gu, Siyi Gu, Yi Gu, C. YGuan, A. Q. Guo, L. B. Guo, R. P. Guo, Y. P. Guo, A. Guskov, S. W. Han, T. T. Han, T. Z. Han, X. Q. Hao

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Abstract

Using 2.93 fb(-1) of e(+)e(-) collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the absolute branching fractions of 14 hadronic D0(+) decays to exclusive final states with an e.g., D-0 -> K-pi(+)eta, K-S(0)pi(0)eta, K+K-eta, (KSKS0)-K-0 eta, K-pi(+)pi(0)eta, K-S(0)pi(+)pi(-)eta, K-S(0)pi(0)pi(0)eta, and pi(+)pi(-)pi(0)eta; D+ -> K-S(0)pi(+)eta, (KSK+)-K-0 eta, K-pi(+)pi(+)eta, K-S(0)pi(+)pi(0)eta, pi(+)pi(+)pi(-)eta, and pi(+)pi(0)pi(0)eta. Among these decays, the D-0 -> K-pi(+)eta and D+ -> K-S(0)pi(+)eta decays have the largest branching fractions, which are B(D-0 -> K-pi(+)eta) = (1.853 +/- 0.025(stat) +/- 0.031(syst))% and B(D+ -> K-S(0)pi(+)eta) = (1.309 +/- 0.037(star)+/- 0.031(syst))%, respectively. The charge-parity asymmetries for the six decays with highest event yields are determined, and no statistically significant charge-parity violation is found.

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What this paper is about

Using 2.93 fb(-1) of e(+)e(-) collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the absolute branching fractions of 14 hadronic D0(+) decays to exclusive final states with an e.g., D-0 -> K-pi(+)eta, K-S(0)pi(0)eta, K+K-eta, (KSKS0)-K-0 eta, K-pi(+)pi(0)eta, K-S(0)pi(+)pi(-)eta, K-S(0)pi(0)pi(0)eta, and pi(+)pi(-)pi(0)eta; D+ -> K-S(0)pi(+)eta, (KSK+)-K-0 eta, K-pi(+)pi(+)eta, K-S(0)pi(+)pi(0)eta, pi(+)pi(+)pi(-)eta, and pi(+)pi(0)pi(0)eta. Among these decays, the D-0 -> K-pi(+)eta and D+ -> K-S(0)pi(+)eta decays have the largest branching fractions, which are B(D-0 -> K-pi(+)eta) = (1.853 +/- 0.025(stat) +/- 0.031(syst))% and B(D+ -> K-S(0)pi(+)eta) = (1.309 +/- 0.037(star)+/- 0.031(syst))%, respectively. The charge-parity asymmetries for the six decays with highest event yields are determined, and no statistically significant charge-parity violation is found.

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Available abstract

Using 2.93 fb(-1) of e(+)e(-) collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the absolute branching fractions of 14 hadronic D0(+) decays to exclusive final states with an e.g., D-0 -> K-pi(+)eta, K-S(0)pi(0)eta, K+K-eta, (KSKS0)-K-0 eta, K-pi(+)pi(0)eta, K-S(0)pi(+)pi(-)eta, K-S(0)pi(0)pi(0)eta, and pi(+)pi(-)pi(0)eta; D+ -> K-S(0)pi(+)eta, (KSK+)-K-0 eta, K-pi(+)pi(+)eta, K-S(0)pi(+)pi(0)eta, pi(+)pi(+)pi(-)eta, and pi(+)pi(0)pi(0)eta. Among these decays, the D-0 -> K-pi(+)eta and D+ -> K-S(0)pi(+)eta decays have the largest branching fractions, which are B(D-0 -> K-pi(+)eta) = (1.853 +/- 0.025(stat) +/- 0.031(syst))% and B(D+ -> K-S(0)pi(+)eta) = (1.309 +/- 0.037(star)+/- 0.031(syst))%, respectively. The charge-parity asymmetries for the six decays with highest event yields are determined, and no statistically significant charge-parity violation is found.

Key concepts: Pi, Physics, Hadron, Particle physics, Electron–positron annihilation, Branching fraction, Geometry, Mathematics

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