Elsevier

Physics Letters B

Volume 738, 10 November 2014, Pages 68-86
Physics Letters B

Search for the Standard Model Higgs boson decay to μ+μ with the ATLAS detector

https://doi.org/10.1016/j.physletb.2014.09.008Get rights and content
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Abstract

A search is reported for Higgs boson decay to μ+μ using data with an integrated luminosity of 24.8fb1 collected with the ATLAS detector in pp collisions at s=7and8TeV at the CERN Large Hadron Collider. The observed dimuon invariant mass distribution is consistent with the Standard Model background-only hypothesis in the 120–150 GeV search range. For a Higgs boson with a mass of 125.5 GeV, the observed (expected) upper limit at the 95% confidence level is 7.0 (7.2) times the Standard Model expectation. This corresponds to an upper limit on the branching ratio BR(Hμ+μ) of 1.5×103.

Cited by (0)

a

Also at Department of Physics, King's College London, London, United Kingdom.

b

Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

c

Also at Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.

d

Also at TRIUMF, Vancouver BC, Canada.

e

Also at Department of Physics, California State University, Fresno, CA, United States.

f

Also at Tomsk State University, Tomsk, Russia.

g

Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

h

Also at Università di Napoli Parthenope, Napoli, Italy.

i

Also at Institute of Particle Physics (IPP), Canada.

j

Also at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia.

k

Also at Chinese University of Hong Kong, China.

l

Also at Department of Financial and Management Engineering, University of the Aegean, Chios, Greece.

m

Also at Louisiana Tech University, Ruston, LA, United States.

n

Also at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain.

o

Also at Department of Physics, The University of Texas at Austin, Austin, TX, United States.

p

Also at Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia.

q

Also at CERN, Geneva, Switzerland.

r

Also at Ochadai Academic Production, Ochanomizu University, Tokyo, Japan.

s

Also at Manhattan College, New York, NY, United States.

t

Also at Novosibirsk State University, Novosibirsk, Russia.

u

Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

v

Also at LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.

w

Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

x

Also at Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France.

y

Also at School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar, India.

z

Also at Dipartimento di Fisica, Sapienza Università di Roma, Roma, Italy.

aa

Also at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia.

ab

Also at Section de Physique, Université de Genève, Geneva, Switzerland.

ac

Also at International School for Advanced Studies (SISSA), Trieste, Italy.

ad

Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, United States.

ae

Also at School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China.

af

Also at Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia.

ag

Also at Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia.

ah

Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

ai

Also at Department of Physics, Oxford University, Oxford, United Kingdom.

aj

Also at Department of Physics, Nanjing University, Jiangsu, China.

ak

Also at Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany.

al

Also at Department of Physics, The University of Michigan, Ann Arbor MI, United States.

am

Also at Discipline of Physics, University of KwaZulu-Natal, Durban, South Africa.

an

Also at University of Malaya, Department of Physics, Kuala Lumpur, Malaysia.

Deceased.

E-mail address: [email protected].