Exotic decays of heavy B quarks
Abstract
Heavy vector-like quarks of charge –1/3, B, have been searched for at the LHC through the decays B → bZ, bh, tW. In models where the B quark also carries charge under a new gauge group, new decay channels may dominate. We focus on the case where the B is charged under a U(1)' and describe simple models where the dominant decay mode is B → bZ' → b(bb¯¯). With the inclusion of dark matter such models can explain the excess of gamma rays from the Galactic center. We develop a search strategy for this decay chain and estimate that with integrated luminosity of 300 fb–1 the LHC will have the potential to discover both the B and the Z' for B quarks with mass below ~ 1.6 TeV, for a broad range of Z' masses. Furthermore, a high-luminosity run can extend this reach to 2 TeV.
- Authors:
-
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Williams College, Williamstown, MA (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1234894
- Report Number(s):
- FERMILAB-PUB-15-353-T
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1509.00499
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 1; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; beyond standard model; rare decays
Citation Formats
Fox, Patrick J., and Tucker-Smith, David. Exotic decays of heavy B quarks. United States: N. p., 2016.
Web. doi:10.1007/JHEP01(2016)038.
Fox, Patrick J., & Tucker-Smith, David. Exotic decays of heavy B quarks. United States. https://doi.org/10.1007/JHEP01(2016)038
Fox, Patrick J., and Tucker-Smith, David. Fri .
"Exotic decays of heavy B quarks". United States. https://doi.org/10.1007/JHEP01(2016)038. https://www.osti.gov/servlets/purl/1234894.
@article{osti_1234894,
title = {Exotic decays of heavy B quarks},
author = {Fox, Patrick J. and Tucker-Smith, David},
abstractNote = {Heavy vector-like quarks of charge –1/3, B, have been searched for at the LHC through the decays B → bZ, bh, tW. In models where the B quark also carries charge under a new gauge group, new decay channels may dominate. We focus on the case where the B is charged under a U(1)' and describe simple models where the dominant decay mode is B → bZ' → b(bb¯¯). With the inclusion of dark matter such models can explain the excess of gamma rays from the Galactic center. We develop a search strategy for this decay chain and estimate that with integrated luminosity of 300 fb–1 the LHC will have the potential to discover both the B and the Z' for B quarks with mass below ~ 1.6 TeV, for a broad range of Z' masses. Furthermore, a high-luminosity run can extend this reach to 2 TeV.},
doi = {10.1007/JHEP01(2016)038},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2016,
place = {United States},
year = {Fri Jan 08 00:00:00 EST 2016},
month = {Fri Jan 08 00:00:00 EST 2016}
}
Search WorldCat to find libraries that may hold this journal