期刊
PHYSICAL REVIEW D
卷 90, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.90.012013
关键词
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资金
- U.S. Department of Energy
- National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Natural Sciences and Engineering Research Council of Canada
- National Science Council of the Republic of China
- Swiss National Science Foundation
- A. P. Sloan Foundation
- Bundesministerium fur Bildung und Forschung, Germany
- Korean World Class University Program
- National Research Foundation of Korea
- Science and Technology Facilities Council
- Royal Society, UK
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio, Spain
- Slovak RD Agency
- Academy of Finland
- Australian Research Council (ARC)
- EU community Marie Curie Fellowship [302103]
- STFC [ST/H001026/1, ST/H001069/2, ST/K00137X/1, ST/H001026/2] Funding Source: UKRI
- ICREA Funding Source: Custom
- Science and Technology Facilities Council [ST/M001474/1, ST/H001026/2, ST/H001069/2, ST/H001026/1, ST/K00137X/1, ST/K001418/1] Funding Source: researchfish
Using the full CDF Run II data sample, we report evidence for a new resonance, which we refer to as B(5970), found simultaneously in the B-0 pi(+) and B+pi(-) mass distributions with a significance of 4.4 standard deviations. We further report the first study of resonances consistent with orbitally excited B+ mesons and an updated measurement of the properties of orbitally excited B-0 and B-s(0) mesons. We measure the masses and widths of all states, as well as the relative production rates of the B-1, B-2*, and B(5970) states and the branching fraction of the B-s2*(0) B-s2*(0) state to either B*K-+(-) and B+K-. Furthermore, we measure the production rates of the orbitally excited B-0,B-+ states relative to the B-0,B-+ ground state. The masses of the new B(5970) resonances are 5978 +/- 5(stat) +/- 12(syst)MeV/c(2) for the neutral state and 5961 +/- 5(stat) +/- 12(syst) MeV/c(2) for the charged state, assuming that the resonance decays into B pi final states. The properties of the orbitally excited and the new B(5970)(0,+) states are compatible with isospin symmetry.
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