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Title: Predicting positive parity B$$_s$$ mesons from lattice QCD

We determine the spectrum of B s 1P states using lattice QCD. For the B s1(5830) and B s2*(5840) mesons, the results are in good agreement with the experimental values. Two further mesons are expected in the quantum channels J P = 0 + and 1 + near the BK and B*K thresholds. A combination of quark–antiquark and B(*) meson–Kaon interpolating fields are used to determine the mass of two QCD bound states below the B(*)K threshold, with the assumption that mixing with B s (*)η and isospin-violating decays to B s (*)π are negligible. We predict a J P = 0 + bound state Bs0 with mass mBs0 = 5.711(13)(19) GeV. In addition, with further assumptions motivated theoretically by the heavy quark limit, a bound state with m Bs1=5.750(17)(19) GeV is predicted in the J P = 1 + channel. The results from our first principles calculation are compared to previous model-based estimates.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Univ. of Graz, Graz (Austria)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. of Ljubljana, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia)
  4. TRIUMF, Vancouver, BC (Canada)
Publication Date:
Report Number(s):
FERMILAB-PUB-15-002-T
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1501.01646; TRN: US1601075
Grant/Contract Number:
AC02-07CH11359; De-AC02-07CH11359
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 750; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Hadron spectroscopy; lattice QCD; bottom-strange mesons
OSTI Identifier:
1212127
Alternate Identifier(s):
OSTI ID: 1221223

Lang, C. B., Mohler, Daniel, Prelovsek, Sasa, and Woloshyn, R. M.. Predicting positive parity B$_s$ mesons from lattice QCD. United States: N. p., Web. doi:10.1016/j.physletb.2015.08.038.
Lang, C. B., Mohler, Daniel, Prelovsek, Sasa, & Woloshyn, R. M.. Predicting positive parity B$_s$ mesons from lattice QCD. United States. doi:10.1016/j.physletb.2015.08.038.
Lang, C. B., Mohler, Daniel, Prelovsek, Sasa, and Woloshyn, R. M.. 2015. "Predicting positive parity B$_s$ mesons from lattice QCD". United States. doi:10.1016/j.physletb.2015.08.038.
@article{osti_1212127,
title = {Predicting positive parity B$_s$ mesons from lattice QCD},
author = {Lang, C. B. and Mohler, Daniel and Prelovsek, Sasa and Woloshyn, R. M.},
abstractNote = {We determine the spectrum of Bs 1P states using lattice QCD. For the Bs1(5830) and Bs2*(5840) mesons, the results are in good agreement with the experimental values. Two further mesons are expected in the quantum channels JP = 0+ and 1+ near the BK and B*K thresholds. A combination of quark–antiquark and B(*) meson–Kaon interpolating fields are used to determine the mass of two QCD bound states below the B(*)K threshold, with the assumption that mixing with Bs(*)η and isospin-violating decays to Bs(*)π are negligible. We predict a JP = 0+ bound state Bs0 with mass mBs0 = 5.711(13)(19) GeV. In addition, with further assumptions motivated theoretically by the heavy quark limit, a bound state with mBs1=5.750(17)(19) GeV is predicted in the JP = 1+ channel. The results from our first principles calculation are compared to previous model-based estimates.},
doi = {10.1016/j.physletb.2015.08.038},
journal = {Physics Letters. Section B},
number = C,
volume = 750,
place = {United States},
year = {2015},
month = {8}
}