Search for di-muon decays of a low-mass Higgs boson in radiative decays of the Υ(1S) - INSPIRE

DataBETA

Search for di-muon decays of a low-mass Higgs boson in radiative decays of the Υ(1S)

BaBar

Collaboration

Oct, 2012

8 pages

Published in:

Phys.Rev.D 87 (2013) 3, 031102,
Phys.Rev.D 87 (2013) 5, 059903 (erratum)

Published: Feb 15, 2013

e-Print:

1210.0287 [hep-ex]

DOI:

PDG:

{{\mathit \Upsilon}{(1S)}}

\rightarrow

{{\mathit \gamma}}{{\mathit A}^{0}}

\rightarrow

{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}

Report number:

BABAR-PUB-12-023,
SLAC-PUB-15252

Experiments:

SLAC-PEP2-BABAR

View in:

reference search92 citations

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Abstract: (APS)

We search for di-muon decays of a low-mass Higgs boson (A0) produced in radiative Υ(1S) decays. The Υ(1S) sample is selected by tagging the pion pair in the Υ(2S,3S)→π+π-Υ(1S) transitions, using a data sample of 92.8×106 Υ(2S) and 116.8×106 Υ(3S) events collected by the BABAR detector. We find no evidence for A0 production and set 90% confidence level upper limits on the product branching fraction B(Υ(1S)→γA0)×B(A0→μ+μ-) in the range of (0.28-9.7)×10-6 for 0.212≤mA0≤9.20 GeV/c2. The results are combined with our previous measurements of Υ(2S,3S)→γA0, A0→μ+μ- to set limits on the effective coupling of the b quark to the A0.

Note:

9 pages, 6 postscript figures, submitted to PRD-RC

12.60.Fr
12.60.Jv
14.40.Nd
14.40.Pq
13.35.Bv
13.20.Gd
14.80.Da
Upsilon(9460): radiative decay
muon: pair production
Higgs particle: leptonic decay

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