A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

Aad G.; T. Åkesson; S. Bocchetta; E. Corrigan; C. Doglioni; J. Geisen; K. Gregersen; E. Hansen; V. Hedberg; G. Jarlskog; E. Kellermann; B. Konya; E. Lytken; K. Mankinen; C. Marcon; J. Mjörnmark; G. Mullier; R. Poettgen; T. Poulsen; E. Skorda; O. Smirnova; Zwalinski L.; ATLAS Collaboration

doi:10.1016/j.physletb.2020.135754

A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

Aad G., T. Åkesson, S. Bocchetta, E. Corrigan, C. Doglioni, J. Geisen, K. Gregersen, E. Hansen, V. Hedberg, G. Jarlskog, E. Kellermann, B. Konya, E. Lytken, K. Mankinen, C. Marcon, J. Mjörnmark, G. Mullier, R. Poettgen, T. Poulsen, E. SkordaO. Smirnova, Zwalinski L., ATLAS Collaboration

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Abstract

A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp→H→Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0−0.9 +1.0 where the statistical component of the uncertainty is dominant. © 2020 The Author

Original language	English
Article number	135754
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	809
DOIs	https://doi.org/10.1016/j.physletb.2020.135754
Publication status	Published - 2020 Oct 10

Subject classification (UKÄ)

Subatomic Physics

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G., A., Åkesson, T., Bocchetta, S., Corrigan, E., Doglioni, C., Geisen, J., Gregersen, K., Hansen, E., Hedberg, V., Jarlskog, G., Kellermann, E., Konya, B., Lytken, E., Mankinen, K., Marcon, C., Mjörnmark, J., Mullier, G., Poettgen, R., Poulsen, T., ... ATLAS Collaboration (2020). A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 809, Article 135754. https://doi.org/10.1016/j.physletb.2020.135754

@article{1ab127286f4548b7813be81ca97e985f,

title = "A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector",

abstract = "A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp→H→Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0−0.9 +1.0 where the statistical component of the uncertainty is dominant. {\textcopyright} 2020 The Author",

author = "Aad G. and T. {\AA}kesson and S. Bocchetta and E. Corrigan and C. Doglioni and J. Geisen and K. Gregersen and E. Hansen and V. Hedberg and G. Jarlskog and E. Kellermann and B. Konya and E. Lytken and K. Mankinen and C. Marcon and J. Mj{\"o}rnmark and G. Mullier and R. Poettgen and T. Poulsen and E. Skorda and O. Smirnova and Zwalinski L. and {ATLAS Collaboration}",

year = "2020",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2020.135754",

language = "English",

volume = "809",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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publisher = "Elsevier",

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G., A, Åkesson, T, Bocchetta, S, Corrigan, E, Doglioni, C, Geisen, J, Gregersen, K, Hansen, E, Hedberg, V , Jarlskog, G, Kellermann, E, Konya, B , Lytken, E, Mankinen, K, Marcon, C, Mjörnmark, J, Mullier, G , Poettgen, R, Poulsen, T, Skorda, E, Smirnova, O, L., Z & ATLAS Collaboration 2020, 'A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 809, 135754. https://doi.org/10.1016/j.physletb.2020.135754

TY - JOUR

T1 - A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

AU - G., Aad

AU - Åkesson, T.

AU - Bocchetta, S.

AU - Corrigan, E.

AU - Doglioni, C.

AU - Geisen, J.

AU - Gregersen, K.

AU - Hansen, E.

AU - Hedberg, V.

AU - Jarlskog, G.

AU - Kellermann, E.

AU - Konya, B.

AU - Lytken, E.

AU - Mankinen, K.

AU - Marcon, C.

AU - Mjörnmark, J.

AU - Mullier, G.

AU - Poettgen, R.

AU - Poulsen, T.

AU - Skorda, E.

AU - Smirnova, O.

AU - L., Zwalinski

AU - ATLAS Collaboration

PY - 2020/10/10

Y1 - 2020/10/10

N2 - A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp→H→Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0−0.9 +1.0 where the statistical component of the uncertainty is dominant. © 2020 The Author

AB - A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp→H→Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0−0.9 +1.0 where the statistical component of the uncertainty is dominant. © 2020 The Author

U2 - 10.1016/j.physletb.2020.135754

DO - 10.1016/j.physletb.2020.135754

M3 - Article

SN - 0370-2693

VL - 809

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

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

M1 - 135754

ER -

A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

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