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Title: Signal of right-handed currents using B K * + - observables at the kinematic endpoint

Abstract

The decay mode B→K*ℓ+- is one of the most promising modes to probe physics beyond the standard model (SM), since the angular distribution of the decay products enable measurement of several constraining observables. LHCb has recently measured these observables using 3fb-1 of data as a binned function of q2, the dilepton invariant mass squared. We find that LHCb data implies evidence for right-handed currents, which are absent in the SM. These conclusions are derived in the maximum q2 limit and are free from hadronic corrections. In conclusion, our approach differs from other approaches that probe new physics at low q2 as it does not require estimates of hadronic parameters but relies instead on heavy quark symmetries that are reliable at the maximum q2 kinematic endpoint.

Authors:
 [1];  [1];  [1];  [1];  [2]
  1. The Institute of Mathematical Sciences, HBNI, Taramani (India)
  2. Univ. of Hawaii, Honolulu, HI (United States)
Publication Date:
Research Org.:
Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1598580
Alternate Identifier(s):
OSTI ID: 1363838
Grant/Contract Number:  
SC0010504
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Karan, Anirban, Mandal, Rusa, Nayak, Abinash Kumar, Sinha, Rahul, and Browder, Thomas E. Signal of right-handed currents using B→K*ℓ+ℓ- observables at the kinematic endpoint. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.114006.
Karan, Anirban, Mandal, Rusa, Nayak, Abinash Kumar, Sinha, Rahul, & Browder, Thomas E. Signal of right-handed currents using B→K*ℓ+ℓ- observables at the kinematic endpoint. United States. doi:10.1103/PhysRevD.95.114006.
Karan, Anirban, Mandal, Rusa, Nayak, Abinash Kumar, Sinha, Rahul, and Browder, Thomas E. Mon . "Signal of right-handed currents using B→K*ℓ+ℓ- observables at the kinematic endpoint". United States. doi:10.1103/PhysRevD.95.114006. https://www.osti.gov/servlets/purl/1598580.
@article{osti_1598580,
title = {Signal of right-handed currents using B→K*ℓ+ℓ- observables at the kinematic endpoint},
author = {Karan, Anirban and Mandal, Rusa and Nayak, Abinash Kumar and Sinha, Rahul and Browder, Thomas E.},
abstractNote = {The decay mode B→K*ℓ+ℓ- is one of the most promising modes to probe physics beyond the standard model (SM), since the angular distribution of the decay products enable measurement of several constraining observables. LHCb has recently measured these observables using 3fb-1 of data as a binned function of q2, the dilepton invariant mass squared. We find that LHCb data implies evidence for right-handed currents, which are absent in the SM. These conclusions are derived in the maximum q2 limit and are free from hadronic corrections. In conclusion, our approach differs from other approaches that probe new physics at low q2 as it does not require estimates of hadronic parameters but relies instead on heavy quark symmetries that are reliable at the maximum q2 kinematic endpoint.},
doi = {10.1103/PhysRevD.95.114006},
journal = {Physical Review D},
number = 11,
volume = 95,
place = {United States},
year = {2017},
month = {6}
}

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