Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ+ℓ-bb final states

V. Khachatryan; A. M. Sirunyan; A. Tumasyan; W. Adam; E. Asilar; T. Bergauer; J. Brandstetter; E. Brondolin; M. Dragicevic; J. Erö; M. Flechl; M. Friedl; R. Frühwirth; V. M. Ghete; C. Hartl; N. Hörmann; J. Hrubec; M. Jeitler; V. Knünz; A. König; M. Krammer; I. Krätschmer; D. Liko; T. Matsushita; I. Mikulec; D. Rabady; B. Rahbaran; H. Rohringer; J. Schieck; R. Schöfbeck; J. Strauss; W. Treberer-Treberspurg; W. Waltenberger; C. E. Wulz; V. Mossolov; N. Shumeiko; J. Suarez Gonzalez; S. Alderweireldt; T. Cornelis; E. A. De Wolf; X. Janssen; A. Knutsson; J. Lauwers; S. Luyckx; S. Ochesanu; R. M. Chatterjee; Y. Kubota; J. Mans; S. Nourbakhsh; R. Rusack; CMS Collaboration

doi:10.1016/j.physletb.2015.07.010

Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ⁺ℓ^-bb final states

V. Khachatryan
, A. M. Sirunyan
, A. Tumasyan
, W. Adam
, E. Asilar
, T. Bergauer
, J. Brandstetter
, E. Brondolin
, M. Dragicevic
, J. Erö
, M. Flechl
, M. Friedl
, R. Frühwirth
, V. M. Ghete
, C. Hartl
, N. Hörmann
, J. Hrubec
, M. Jeitler
, V. Knünz
, A. König

M. Krammer, I. Krätschmer, D. Liko, T. Matsushita, I. Mikulec, D. Rabady, B. Rahbaran, H. Rohringer, J. Schieck, R. Schöfbeck, J. Strauss, W. Treberer-Treberspurg, W. Waltenberger, C. E. Wulz, V. Mossolov, N. Shumeiko, J. Suarez Gonzalez, S. Alderweireldt, T. Cornelis, E. A. De Wolf, X. Janssen, A. Knutsson, J. Lauwers, S. Luyckx, S. Ochesanu, R. M. Chatterjee, Y. Kubota, J. Mans, S. Nourbakhsh, R. Rusack, CMS Collaboration

Physics and Astronomy (Twin Cities)

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

81 Scopus citations

Abstract

Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb- The search is based on data from proton-proton collisions at a center-of-mass energy s=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb-1. The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.

Original language	English (US)
Pages (from-to)	221-243
Number of pages	23
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	748
DOIs	https://doi.org/10.1016/j.physletb.2015.07.010
State	Published - Sep 2 2015

Keywords

2HDM
BSM
CMS
Higgs
MSSM

Publisher link

10.1016/j.physletb.2015.07.010

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Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Knünz, V., ... CMS Collaboration (2015). Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ⁺ℓ^-bb final states. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 748, 221-243. https://doi.org/10.1016/j.physletb.2015.07.010

Khachatryan, V, Sirunyan, AM, Tumasyan, A, Adam, W, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Flechl, M, Friedl, M, Frühwirth, R, Ghete, VM, Hartl, C, Hörmann, N, Hrubec, J, Jeitler, M, Knünz, V, König, A, Krammer, M, Krätschmer, I, Liko, D, Matsushita, T, Mikulec, I, Rabady, D, Rahbaran, B, Rohringer, H, Schieck, J, Schöfbeck, R, Strauss, J, Treberer-Treberspurg, W, Waltenberger, W, Wulz, CE, Mossolov, V, Shumeiko, N, Suarez Gonzalez, J, Alderweireldt, S, Cornelis, T, De Wolf, EA, Janssen, X, Knutsson, A, Lauwers, J, Luyckx, S, Ochesanu, S, Chatterjee, RM, Kubota, Y, Mans, J, Nourbakhsh, S, Rusack, R & CMS Collaboration 2015, 'Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ⁺ℓ^-bb final states', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 748, pp. 221-243. https://doi.org/10.1016/j.physletb.2015.07.010

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title = "Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ+ℓ-bb final states",

abstract = "Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb- The search is based on data from proton-proton collisions at a center-of-mass energy s=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb-1. The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.",

keywords = "2HDM, BSM, CMS, Higgs, MSSM",

author = "V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and V. Kn{\"u}nz and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and S. Ochesanu and Chatterjee, \{R. M.\} and Y. Kubota and J. Mans and S. Nourbakhsh and R. Rusack and \{CMS Collaboration\}",

year = "2015",

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doi = "10.1016/j.physletb.2015.07.010",

language = "English (US)",

volume = "748",

pages = "221--243",

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T1 - Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ+ℓ-bb final states

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Knünz, V.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Chatterjee, R. M.

AU - Kubota, Y.

AU - Mans, J.

AU - Nourbakhsh, S.

AU - Rusack, R.

AU - CMS Collaboration

PY - 2015/9/2

Y1 - 2015/9/2

N2 - Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb- The search is based on data from proton-proton collisions at a center-of-mass energy s=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb-1. The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.

AB - Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb- The search is based on data from proton-proton collisions at a center-of-mass energy s=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb-1. The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.

KW - 2HDM

KW - BSM

KW - CMS

KW - Higgs

KW - MSSM

UR - https://www.scopus.com/pages/publications/85040831449

UR - https://www.scopus.com/pages/publications/85040831449#tab=citedBy

U2 - 10.1016/j.physletb.2015.07.010

DO - 10.1016/j.physletb.2015.07.010

M3 - Article

SN - 0370-2693

VL - 748

SP - 221

EP - 243

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -