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

The ATLAS Collaboration

doi:10.1016/j.physletb.2018.10.073

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

The ATLAS Collaboration

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

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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
Pages (from-to)	1-21
Number of pages	21
Journal	Physics Letters B
Volume	790
DOIs	https://doi.org/10.1016/j.physletb.2018.10.073
Publication status	Published - 10 Mar 2019
Externally published	Yes

Bibliographical note

Copyright the Author(s) 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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10.1016/j.physletb.2018.10.073Licence: CC BY

Publisher version (open access)Final published version, 1.68 MBLicence: CC BY

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@article{ba047f34d6bb44ac847483d2bda1e8d8,

title = "Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 13TeV 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 = "\{The 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 \{Alconada Verzini\}, \{M. J.\} 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 Allport, \{P. P.\} and A. Aloisio and A. Alonso and F. Alonso and C. Alpigiani and Alshehri, \{A. A.\} and Alstaty, \{M. I.\} and \{Alvarez Gonzalez\}, B. and \{{\'A}lvarez Piqueras\}, D. and Alviggi, \{M. G.\} and Amadio, \{B. T.\} and \{Amaral Coutinho\}, Y. and L. Ambroz and C. Amelung and D. Amidei and \{Amor Dos Santos\}, \{S. P.\} and S. Amoroso and Amrouche, \{C. S.\} and C. Anastopoulos and Ancu, \{L. S.\} and N. Andari and T. Andeen and Anders, \{C. F.\} and Anders, \{J. K.\} and Anderson, \{K. J.\} and A. Andreazza and V. Andrei and Anelli, \{C. R.\} and S. Angelidakis and I. Angelozzi and A. Angerami and Anisenkov, \{A. V.\} and A. Annovi and C. Antel and Anthony, \{M. T.\} and M. Antonelli and Antrim, \{D. J.A.\} and F. Anulli and M. Aoki and \{Aparisi Pozo\}, \{J. A.\} and \{Aperio Bella\}, L. and G. Arabidze and Araque, \{J. P.\} and \{Araujo Ferraz\}, V. and \{Araujo Pereira\}, R. and Arce, \{A. T.H.\} and Ardell, \{R. E.\} and Arduh, \{F. A.\} and Arguin, \{J. F.\} and S. Argyropoulos and Armbruster, \{A. J.\} and Armitage, \{L. J.\} and A. Armstrong and O. Arnaez and H. Arnold and M. Arratia and O. Arslan and A. Artamonov and G. Artoni and S. Artz and S. Asai and N. Asbah and A. Ashkenazi and Asimakopoulou, \{E. M.\} and L. Asquith and K. Assamagan and R. Astalos and Atkin, \{R. J.\} and M. Atkinson and Atlay, \{N. B.\} and K. Augsten and G. Avolio and R. Avramidou and Ayoub, \{M. K.\} and G. Azuelos and Baas, \{A. E.\} and Baca, \{M. J.\} and H. Bachacou and K. Bachas and M. Backes and P. Bagnaia and M. Bahmani and H. Bahrasemani and Bailey, \{A. J.\} and Baines, \{J. T.\} and M. Bajic and C. Bakalis and Baker, \{O. K.\} and Bakker, \{P. J.\} and \{Bakshi Gupta\}, D. and Baldin, \{E. M.\} and P. Balek and F. Balli and Balunas, \{W. K.\} and J. Balz and E. Banas and A. Bandyopadhyay and S. Banerjee and Bannoura, \{A. A.E.\} and L. Barak and Barbe, \{W. M.\} and Barberio, \{E. L.\} and D. Barberis and M. Barbero and T. Barillari and Barisits, \{M. S.\} and J. Barkeloo and T. Barklow and N. Barlow and R. Barnea and Barnes, \{S. L.\} and Barnett, \{B. M.\} and Barnett, \{R. M.\} and Z. Barnovska-Blenessy and A. Baroncelli and G. Barone and Barr, \{A. J.\} and \{Barranco Navarro\}, L. and F. Barreiro and \{Barreiro Guimar{\~a}es da Costa\}, J. and R. Bartoldus and Barton, \{A. E.\} and P. Bartos and A. Basalaev and A. Bassalat and Bates, \{R. L.\} and Batista, \{S. J.\} and S. Batlamous and Batley, \{J. R.\} and M. Battaglia and M. Bauce and F. Bauer and Bauer, \{K. T.\} and Bawa, \{H. S.\} and Beacham, \{J. B.\} and T. Beau and Beauchemin, \{P. H.\} and P. Bechtle and Beck, \{H. C.\} and Beck, \{H. P.\} and K. Becker and M. Becker and C. Becot and Beddall, \{A. J.\} and Beddall, \{A. J.\} and Bednyakov, \{V. A.\} and M. Bedognetti and Bee, \{C. P.\} and Beermann, \{T. A.\} and M. Begalli and M. Begel and A. Behera and Behr, \{J. K.\} and Bell, \{A. S.\} and G. Bella and L. Bellagamba and A. Bellerive and M. Bellomo and P. Bellos and K. Belotskiy and Belyaev, \{N. L.\} and O. Benary and D. Benchekroun and M. Bender and N. Benekos and Y. Benhammou and \{Benhar Noccioli\}, E. and J. Benitez and Benjamin, \{D. P.\} and M. Benoit and Bensinger, \{J. R.\} and S. Bentvelsen and L. Beresford and M. Beretta and D. Berge and \{Bergeaas Kuutmann\}, E. and N. Berger and Bergsten, \{L. J.\} and J. Beringer and S. Berlendis and Bernard, \{N. R.\} and G. Bernardi and C. Bernius and Bernlochner, \{F. U.\} and T. Berry and P. Berta and C. Bertella and G. Bertoli and Bertram, \{I. A.\} and Besjes, \{G. J.\} and \{Bessidskaia Bylund\}, O. and M. Bessner and N. Besson and A. Bethani and S. Bethke and A. Betti and Bevan, \{A. J.\} and J. Beyer and Bianchi, \{R. M.\} and O. Biebel and D. Biedermann and R. Bielski and K. Bierwagen and S. Shojaii",

note = "Copyright the Author(s) 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2019",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2018.10.073",

language = "English",

volume = "790",

pages = "1--21",

journal = "Physics Letters B",

issn = "0370-2693",

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 = 13TeV with the ATLAS detector

AU - The 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 - Alconada Verzini, M. J.

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 - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, A.

AU - Alonso, F.

AU - Alpigiani, C.

AU - Alshehri, A. A.

AU - Alstaty, M. I.

AU - Alvarez Gonzalez, B.

AU - Álvarez Piqueras, D.

AU - Alviggi, M. G.

AU - Amadio, B. T.

AU - Amaral Coutinho, Y.

AU - Ambroz, L.

AU - Amelung, C.

AU - Amidei, D.

AU - Amor Dos Santos, S. P.

AU - Amoroso, S.

AU - Amrouche, C. S.

AU - Anastopoulos, C.

AU - Ancu, L. S.

AU - Andari, N.

AU - Andeen, T.

AU - Anders, C. F.

AU - Anders, J. K.

AU - Anderson, K. J.

AU - Andreazza, A.

AU - Andrei, V.

AU - Anelli, C. R.

AU - Angelidakis, S.

AU - Angelozzi, I.

AU - Angerami, A.

AU - Anisenkov, A. V.

AU - Annovi, A.

AU - Antel, C.

AU - Anthony, M. T.

AU - Antonelli, M.

AU - Antrim, D. J.A.

AU - Anulli, F.

AU - Aoki, M.

AU - Aparisi Pozo, J. A.

AU - Aperio Bella, L.

AU - Arabidze, G.

AU - Araque, J. P.

AU - Araujo Ferraz, V.

AU - Araujo Pereira, R.

AU - Arce, A. T.H.

AU - Ardell, R. E.

AU - Arduh, F. A.

AU - Arguin, J. F.

AU - Argyropoulos, S.

AU - Armbruster, A. J.

AU - Armitage, L. J.

AU - Armstrong, A.

AU - Arnaez, O.

AU - Arnold, H.

AU - Arratia, M.

AU - Arslan, O.

AU - Artamonov, A.

AU - Artoni, G.

AU - Artz, S.

AU - Asai, S.

AU - Asbah, N.

AU - Ashkenazi, A.

AU - Asimakopoulou, E. M.

AU - Asquith, L.

AU - Assamagan, K.

AU - Astalos, R.

AU - Atkin, R. J.

AU - Atkinson, M.

AU - Atlay, N. B.

AU - Augsten, K.

AU - Avolio, G.

AU - Avramidou, R.

AU - Ayoub, M. K.

AU - Azuelos, G.

AU - Baas, A. E.

AU - Baca, M. J.

AU - Bachacou, H.

AU - Bachas, K.

AU - Backes, M.

AU - Bagnaia, P.

AU - Bahmani, M.

AU - Bahrasemani, H.

AU - Bailey, A. J.

AU - Baines, J. T.

AU - Bajic, M.

AU - Bakalis, C.

AU - Baker, O. K.

AU - Bakker, P. J.

AU - Bakshi Gupta, D.

AU - Baldin, E. M.

AU - Balek, P.

AU - Balli, F.

AU - Balunas, W. K.

AU - Balz, J.

AU - Banas, E.

AU - Bandyopadhyay, A.

AU - Banerjee, S.

AU - Bannoura, A. A.E.

AU - Barak, L.

AU - Barbe, W. M.

AU - Barberio, E. L.

AU - Barberis, D.

AU - Barbero, M.

AU - Barillari, T.

AU - Barisits, M. S.

AU - Barkeloo, J.

AU - Barklow, T.

AU - Barlow, N.

AU - Barnea, R.

AU - Barnes, S. L.

AU - Barnett, B. M.

AU - Barnett, R. M.

AU - Barnovska-Blenessy, Z.

AU - Baroncelli, A.

AU - Barone, G.

AU - Barr, A. J.

AU - Barranco Navarro, L.

AU - Barreiro, F.

AU - Barreiro Guimarães da Costa, J.

AU - Bartoldus, R.

AU - Barton, A. E.

AU - Bartos, P.

AU - Basalaev, A.

AU - Bassalat, A.

AU - Bates, R. L.

AU - Batista, S. J.

AU - Batlamous, S.

AU - Batley, J. R.

AU - Battaglia, M.

AU - Bauce, M.

AU - Bauer, F.

AU - Bauer, K. T.

AU - Bawa, H. S.

AU - Beacham, J. B.

AU - Beau, T.

AU - Beauchemin, P. H.

AU - Bechtle, P.

AU - Beck, H. C.

AU - Beck, H. P.

AU - Becker, K.

AU - Becker, M.

AU - Becot, C.

AU - Beddall, A. J.

AU - Bednyakov, V. A.

AU - Bedognetti, M.

AU - Bee, C. P.

AU - Beermann, T. A.

AU - Begalli, M.

AU - Begel, M.

AU - Behera, A.

AU - Behr, J. K.

AU - Bell, A. S.

AU - Bella, G.

AU - Bellagamba, L.

AU - Bellerive, A.

AU - Bellomo, M.

AU - Bellos, P.

AU - Belotskiy, K.

AU - Belyaev, N. L.

AU - Benary, O.

AU - Benchekroun, D.

AU - Bender, M.

AU - Benekos, N.

AU - Benhammou, Y.

AU - Benhar Noccioli, E.

AU - Benitez, J.

AU - Benjamin, D. P.

AU - Benoit, M.

AU - Bensinger, J. R.

AU - Bentvelsen, S.

AU - Beresford, L.

AU - Beretta, M.

AU - Berge, D.

AU - Bergeaas Kuutmann, E.

AU - Berger, N.

AU - Bergsten, L. J.

AU - Beringer, J.

AU - Berlendis, S.

AU - Bernard, N. R.

AU - Bernardi, G.

AU - Bernius, C.

AU - Bernlochner, F. U.

AU - Berry, T.

AU - Berta, P.

AU - Bertella, C.

AU - Bertoli, G.

AU - Bertram, I. A.

AU - Besjes, G. J.

AU - Bessidskaia Bylund, O.

AU - Bessner, M.

AU - Besson, N.

AU - Bethani, A.

AU - Bethke, S.

AU - Betti, A.

AU - Bevan, A. J.

AU - Beyer, J.

AU - Bianchi, R. M.

AU - Biebel, O.

AU - Biedermann, D.

AU - Bielski, R.

AU - Bierwagen, K.

AU - Shojaii, S.

N1 - Copyright the Author(s) 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2019/3/10

Y1 - 2019/3/10

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.

UR - https://www.scopus.com/pages/publications/85059937238

U2 - 10.1016/j.physletb.2018.10.073

DO - 10.1016/j.physletb.2018.10.073

M3 - Article

AN - SCOPUS:85059937238

SN - 0370-2693

VL - 790

SP - 1

EP - 21

JO - Physics Letters B

JF - Physics Letters B

ER -

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

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