Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment

M. Aaboud; G. Aad; O. Abdinov; B Abeloos; DK Abhayasinghe; S.H. Abidi; Ossama Sherif Alexander Abouzeid; NL Abraham; H. Abramowicz; H. Abreu; Y. Abulaiti; B.S. Acharya; Sosuke Adachi; L. Adamczyk; J. Adelman; M. Adersberger; A. Adiguzel; T. Adye; A. A. Affolder; Y.  Afik; C. Agheorghiesei; J. A. Aguilar-Saavedra; F. Ahmadov; G. Aielli; Alejandro Alonso Diaz; Milena Bajic; Flavia de Almeida Dias; Geert-Jan Besjes; Mogens Dam; Gorm Aske Gram Krohn Galster; Jørn Dines Hansen; Peter Henrik Hansen; Jørgen Beck Hansen; James William Monk; Troels Christian Petersen; Fabian Alexander Jürgen Thiele; Simon Holm Stark; Graig Wiglesworth; Stefania Xella

doi:10.1007/JHEP11(2018)040

Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment

M. Aaboud, G. Aad, O. Abdinov, B Abeloos, DK Abhayasinghe, S.H. Abidi, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, Sosuke Adachi, L. Adamczyk, J. Adelman, M. Adersberger, A. Adiguzel, T. Adye, A. A. Affolder, Y. AfikC. Agheorghiesei, J. A. Aguilar-Saavedra, F. Ahmadov, G. Aielli, Alejandro Alonso Diaz, Milena Bajic, Flavia de Almeida Dias, Geert-Jan Besjes, Mogens Dam, Gorm Aske Gram Krohn Galster, Jørn Dines Hansen, Peter Henrik Hansen, Jørgen Beck Hansen, James William Monk, Troels Christian Petersen, Fabian Alexander Jürgen Thiele, Simon Holm Stark, Graig Wiglesworth, Stefania Xella

Experimental Particle Physics

44 Citations (Scopus)

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Abstract

A search is performed for resonant and non-resonant Higgs boson pair production in the γ γ bb¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb⁻¹ of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κ_λ = λ_HHH/λ_HHH^SM) is constrained at 95% confidence level to −8.2 < κ_λ < 13.2. For resonant Higgs boson pair production through X→ HH→ γ γ bb¯ , the limit is presented, using the narrow-width approximation, as a function of m_X in the range 260 GeV < m_X < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.

Original language	English
Article number	040
Journal	Journal of High Energy Physics
Volume	2018
Issue number	11
Number of pages	44
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP11(2018)040
Publication status	Published - 1 Nov 2018

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Aaboud, M., Aad, G., Abdinov, O., Abeloos, B., Abhayasinghe, DK., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A., ... Xella, S. (2018). Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment. Journal of High Energy Physics, 2018(11), Article 040. https://doi.org/10.1007/JHEP11(2018)040

Aaboud, M, Aad, G, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abreu, H, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adelman, J, Adersberger, M, Adiguzel, A, Adye, T, Affolder, AA, Afik, Y, Agheorghiesei, C, Aguilar-Saavedra, JA, Ahmadov, F, Aielli, G, Alonso Diaz, A, Bajic, M, de Almeida Dias, F, Besjes, G-J, Dam, M, Galster, GAGK, Hansen, JD , Hansen, PH , Hansen, JB, Monk, JW, Petersen, TC, Thiele, FAJ, Stark, SH, Wiglesworth, G & Xella, S 2018, 'Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment', Journal of High Energy Physics, vol. 2018, no. 11, 040. https://doi.org/10.1007/JHEP11(2018)040

@article{4b91d36b5f2c4d859afd31891f718a15,

title = "Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment",

abstract = "A search is performed for resonant and non-resonant Higgs boson pair production in the γ γ bb¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λHHHSM) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X→ HH→ γ γ bb¯ , the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.",

author = "M. Aaboud and G. Aad and O. Abdinov and B Abeloos and DK Abhayasinghe and S.H. Abidi and Abouzeid, {Ossama Sherif Alexander} and NL Abraham and H. Abramowicz and H. Abreu and Y. Abulaiti and B.S. Acharya and Sosuke 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 {Alonso Diaz}, Alejandro and Milena Bajic and {de Almeida Dias}, Flavia and Geert-Jan Besjes and Mogens Dam and Galster, {Gorm Aske Gram Krohn} and Hansen, {J{\o}rn Dines} and Hansen, {Peter Henrik} and Hansen, {J{\o}rgen Beck} and Monk, {James William} and Petersen, {Troels Christian} and Thiele, {Fabian Alexander J{\"u}rgen} and Stark, {Simon Holm} and Graig Wiglesworth and Stefania Xella",

year = "2018",

month = nov,

day = "1",

doi = "10.1007/JHEP11(2018)040",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment

AU - Aaboud, M.

AU - Aad, G.

AU - Abdinov, O.

AU - Abeloos, B

AU - Abhayasinghe, DK

AU - Abidi, S.H.

AU - Abouzeid, Ossama Sherif Alexander

AU - Abraham, NL

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Sosuke

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 - Alonso Diaz, Alejandro

AU - Bajic, Milena

AU - de Almeida Dias, Flavia

AU - Besjes, Geert-Jan

AU - Dam, Mogens

AU - Galster, Gorm Aske Gram Krohn

AU - Hansen, Jørn Dines

AU - Hansen, Peter Henrik

AU - Hansen, Jørgen Beck

AU - Monk, James William

AU - Petersen, Troels Christian

AU - Thiele, Fabian Alexander Jürgen

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - Xella, Stefania

PY - 2018/11/1

Y1 - 2018/11/1

N2 - A search is performed for resonant and non-resonant Higgs boson pair production in the γ γ bb¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λHHHSM) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X→ HH→ γ γ bb¯ , the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.

AB - A search is performed for resonant and non-resonant Higgs boson pair production in the γ γ bb¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λHHHSM) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X→ HH→ γ γ bb¯ , the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.

U2 - 10.1007/JHEP11(2018)040

DO - 10.1007/JHEP11(2018)040

M3 - Journal article

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 040

ER -

Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment

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