Search for Higgs boson decays into a pair of light bosons in the bbµµ final state in pp collision at √s =13 TeV with the ATLAS detector

Atlas Collaboration

Search for Higgs boson decays into a pair of light bosons in the bbµµ final state in pp collision at ^√s =13 TeV with the ATLAS detector

Atlas Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

A search for decays of the Higgs boson into a pair of new spin-zero particles, H → aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb⁻¹ of proton–proton collision data at √s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σ_H/σ_SM)×B(H → aa → bbµµ), ranging from 1.2×10⁻⁴ to 8.4×10⁻⁴ in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbµµ final state for new physics, σ_vis(X) × B(X → bbµµ), ranging from 0.1 fb to 0.73 fb for m_µµ between 18 and 62 GeV.

Original language	English (US)
Journal	Unknown Journal
State	Published - Jul 2 2018

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@article{09605032e64b4cbea8cbecc4c55a0271,

title = "Search for Higgs boson decays into a pair of light bosons in the bbµµ final state in pp collision at √s =13 TeV with the ATLAS detector",

abstract = "A search for decays of the Higgs boson into a pair of new spin-zero particles, H → aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at √s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H → aa → bbµµ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbµµ final state for new physics, σvis(X) × B(X → bbµµ), ranging from 0.1 fb to 0.73 fb for mµµ between 18 and 62 GeV.",

author = "{Atlas Collaboration} and M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B. Abeloos and Abhayasinghe, {D. K.} and Abidi, {S. H.} and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and S. Adachi and L. Adamczyk and J. Adelman and M. Adersberger and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and F. Ahmadov and G. Aielli and S. Akatsuka and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and P. Albicocco and Verzini, {M. J.Alconada} and S. Alderweireldt and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and T. Alexopoulos and M. Alhroob and B. Ali and G. Alimonti and J. Alison and Alkire, {S. P.} and C. Allaire and Allbrooke, {B. M.M.} and Allen, {B. W.} and E. Cheu and Johns, {K. A.} and Rutherfoord, {J. P.} and Varnes, {E. W.}",

year = "2018",

month = jul,

day = "2",

language = "English (US)",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

}

TY - JOUR

T1 - Search for Higgs boson decays into a pair of light bosons in the bbµµ final state in pp collision at √s =13 TeV with the ATLAS detector

AU - Atlas Collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Verzini, M. J.Alconada

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Alimonti, G.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allaire, C.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Cheu, E.

AU - Johns, K. A.

AU - Rutherfoord, J. P.

AU - Varnes, E. W.

PY - 2018/7/2

Y1 - 2018/7/2

N2 - A search for decays of the Higgs boson into a pair of new spin-zero particles, H → aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at √s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H → aa → bbµµ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbµµ final state for new physics, σvis(X) × B(X → bbµµ), ranging from 0.1 fb to 0.73 fb for mµµ between 18 and 62 GeV.

AB - A search for decays of the Higgs boson into a pair of new spin-zero particles, H → aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at √s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H → aa → bbµµ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbµµ final state for new physics, σvis(X) × B(X → bbµµ), ranging from 0.1 fb to 0.73 fb for mµµ between 18 and 62 GeV.

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UR - http://www.scopus.com/inward/citedby.url?scp=85094447515&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85094447515

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

ER -