Study of Orbitally Excited B Mesons and Evidence for a New Bπ Resonance
Name
Aaltonen-2014-Study of orbitally excited.pdf
Size
1.28 MB
Format
Adobe PDF
Checksum (MD5)
b7a6c73964406702d87a2f7b43addcf2
Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Date Issued
July 2014
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T., S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, et al. “Study of Orbitally Excited B Mesons and Evidence for a New Bπ Resonance.” Phys. Rev. D 90, no. 1 (July 2014). © 2014 American Physical Society
Version
Final published version
Abstract
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[superscript 0]π[superscript +] and B[superscript +]π[superscript −] mass distributions with a significance of 4.4 standard deviations. We further report the first study of resonances consistent with orbitally excited B[superscript +] mesons and an updated measurement of the properties of orbitally excited B[superscript 0] and B[0 over s] mesons. We measure the masses and widths of all states, as well as the relative production rates of the B[subscript 1], B[∗ over 2], and B(5970) states and the branching fraction of the B[*0 over s2] state to either B[superscript *+]K[superscript −] and B[superscript +]K[superscript −]. Furthermore, we measure the production rates of the orbitally excited B[superscript 0,+] states relative to the B[superscript 0,+] ground state. The masses of the new B(5970) resonances are 5978 ± 5(stat) ± 12(syst) MeV/c[superscript 2] for the neutral state and 5961 ± 5(stat) ± 12(syst) MeV/c[superscript 2] for the charged state, assuming that the resonance decays into Bπ final states. The properties of the orbitally excited and the new B(5970)[superscript 0,+] states are compatible with isospin symmetry.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.90.012013
