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Title: Search for a Low-Mass Higgs Boson (A0) at BaBar

Abstract

The BABAR Collaboration has performed three searches for a light Higgs boson, A{sup 0}, in radiative Upsilon ({Upsilon}) decays: {Upsilon}(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} {tau}{sup +}{tau}{sup -}; {Upsilon}(nS) {yields} {gamma}A{sup 0}, A{sup 0} {yields} {mu}{sup +}{mu}{sup -} (n = 2,3); and {Upsilon}(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} invisible. Such a Higgs boson (A{sup 0}) appears in the Next-to-Minimal Supersymmetric extensions of the Standard Model, where a light CP-odd Higgs boson couples strongly to b-quarks. The searches are based on data samples that consist of 122 x 10{sup 6} {Upsilon}(3S) and 99 x 10{sup 6} {Upsilon}(2S) decays, collected by the BABAR detector at the SLAC National Accelerator Laboratory. The searches reveal no evidence for an A{sup 0}, and product of branching fractions upper limits, at 90% C.L., of (1.5-16) x 10{sup -5}, (0.44-44) x 10{sup -6}, and (0.7-31) x 10{sup -6} were obtained for these searches, respectively. Also, we set the upper limits {Beta}({eta}{sub b} {yields} {tau}{sup +}{tau}{sup -}) < 8% and {Beta}({eta}{sub b} {yields} {mu}{sup +}{mu}{sup -}) < 0.9%.

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1038034
Report Number(s):
SLAC-PUB-14928
arXiv:0909.3053; TRN: US1201746
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Journal Name:
PoS EPS-HEP2009:232,2009
Additional Journal Information:
Conference: To appear in the proceedings of 2009 Europhysics Conference on High Energy Physics: HEP 2009 (EPS-HEP 2009), Cracow, Poland, 16-22 Jul 2009
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; B QUARKS; FERMILAB ACCELERATOR; HIGGS BOSONS; HIGH ENERGY PHYSICS; STANDARD MODEL; STANFORD LINEAR ACCELERATOR CENTER; Experiment-HEP,HEPEX

Citation Formats

Mokhtar, Arafat Gabareen, and /SLAC. Search for a Low-Mass Higgs Boson (A0) at BaBar. United States: N. p., 2012. Web.
Mokhtar, Arafat Gabareen, & /SLAC. Search for a Low-Mass Higgs Boson (A0) at BaBar. United States.
Mokhtar, Arafat Gabareen, and /SLAC. 2012. "Search for a Low-Mass Higgs Boson (A0) at BaBar". United States. https://www.osti.gov/servlets/purl/1038034.
@article{osti_1038034,
title = {Search for a Low-Mass Higgs Boson (A0) at BaBar},
author = {Mokhtar, Arafat Gabareen and /SLAC},
abstractNote = {The BABAR Collaboration has performed three searches for a light Higgs boson, A{sup 0}, in radiative Upsilon ({Upsilon}) decays: {Upsilon}(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} {tau}{sup +}{tau}{sup -}; {Upsilon}(nS) {yields} {gamma}A{sup 0}, A{sup 0} {yields} {mu}{sup +}{mu}{sup -} (n = 2,3); and {Upsilon}(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} invisible. Such a Higgs boson (A{sup 0}) appears in the Next-to-Minimal Supersymmetric extensions of the Standard Model, where a light CP-odd Higgs boson couples strongly to b-quarks. The searches are based on data samples that consist of 122 x 10{sup 6} {Upsilon}(3S) and 99 x 10{sup 6} {Upsilon}(2S) decays, collected by the BABAR detector at the SLAC National Accelerator Laboratory. The searches reveal no evidence for an A{sup 0}, and product of branching fractions upper limits, at 90% C.L., of (1.5-16) x 10{sup -5}, (0.44-44) x 10{sup -6}, and (0.7-31) x 10{sup -6} were obtained for these searches, respectively. Also, we set the upper limits {Beta}({eta}{sub b} {yields} {tau}{sup +}{tau}{sup -}) < 8% and {Beta}({eta}{sub b} {yields} {mu}{sup +}{mu}{sup -}) < 0.9%.},
doi = {},
url = {https://www.osti.gov/biblio/1038034}, journal = {PoS EPS-HEP2009:232,2009},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 05 00:00:00 EDT 2012},
month = {Thu Apr 05 00:00:00 EDT 2012}
}

Conference:
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