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Title: Searching for axionlike particles in flavor-changing neutral current processes [A new flavor of searches for axion-like particles]

Here, we propose new searches for axion-like particles (ALPs) produced in flavor-changing neutral current (FCNC) processes. This proposal exploits the often-overlooked coupling of ALPs to W ± bosons, leading to FCNC production of ALPs even in the absence of a direct coupling to fermions. Our proposed searches for resonant ALP production in decays such as B→K(*)a, a→γγ, and K→πa, a→γγ could greatly improve upon the current sensitivity to ALP couplings to standard model particles. Finally, we also determine analogous constraints and discovery prospects for invisibly decaying ALPs.
Authors:
 [1] ;  [2] ;  [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Report Number(s):
SLAC-PUB-16876; BNL-113898-2017-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1700607
Grant/Contract Number:
SC0012704; AC02-05CH11231; AC02-76SF00515; PHY-1316783; AC02-05CH1123
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 11; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HET; axion; flavor; neutral
OSTI Identifier:
1352550
Alternate Identifier(s):
OSTI ID: 1347057; OSTI ID: 1361267