Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector

ATLAS Collaboration; S. Alderweireldt; J.F. Allen; T.M. Carter; P. J.  Clark; J.R. Curran; S. M. Farrington; J.M. Gargan; R.Y. Gonzalez Andana; C. Jiang; C. Leonidopoulos; M. Firdaus M. Soberi; V. J.  Martin; L. Mijović; V.A. Parrish; E.A. Pender; T. Qiu; J.M. Silva; N. Themistokleous; E.M. Villhauer; B.M. Wynne; Z. Xu; E. Zaid

doi:10.1016/j.physletb.2024.138762

Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector

ATLAS Collaboration, S. Alderweireldt, J.F. Allen, T.M. Carter, P. J. Clark, J.R. Curran, S. M. Farrington, J.M. Gargan, R.Y. Gonzalez Andana, C. Jiang, C. Leonidopoulos, M. Firdaus M. Soberi, V. J. Martin, L. Mijović, V.A. Parrish, E.A. Pender, T. Qiu, J.M. Silva, N. Themistokleous, E.M. VillhauerB.M. Wynne, Z. Xu, E. Zaid

School of Physics and Astronomy

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

Abstract

Searches for exclusive decays of the Higgs boson into 𝐷∗ 𝛾 and of the 𝑍 boson into 𝐷0𝛾 and 𝐾0𝑠 𝛾 can probe flavour-violating Higgs boson and 𝑍 boson couplings to light quarks. Searches for these decays are performed with a 𝑝𝑝 collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at √𝑠 = 13 TeV
between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the 𝐷∗𝛾 and 𝐷0𝛾 channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are B(𝐻 →𝐷∗𝛾) < 1.0(1.2) × 10−3, B(𝑍 → 𝐷0𝛾) < 4.0(3.4) × 10−6, while the corresponding results in the 𝐾0𝑠 𝛾 channel are B(𝑍 → 𝐾0
𝑠 𝛾) < 3.1(3.0) × 10−6.

Original language	English
Article number	138762
Pages (from-to)	1-25
Number of pages	25
Journal	Physics Letters B
Volume	855
Early online date	3 Jun 2024
DOIs	https://doi.org/10.1016/j.physletb.2024.138762
Publication status	Published - 1 Aug 2024

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3 Finished
3 Active

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/27
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 30/09/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 30/09/26
Project: Research

Cite this

ATLAS Collaboration, Alderweireldt, S., Allen, J. F., Carter, T. M., Clark, P. J., Curran, J. R., Farrington, S. M., Gargan, J. M., Gonzalez Andana, R. Y., Jiang, C., Leonidopoulos, C., Soberi, M. F. M., Martin, V. J., Mijović, L., Parrish, V. A., Pender, E. A., Qiu, T., Silva, J. M., Themistokleous, N., ... Zaid, E. (2024). Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector. Physics Letters B, 855, 1-25. Article 138762. https://doi.org/10.1016/j.physletb.2024.138762

@article{292ff379785d4a2aa0da020dc996832f,

title = "Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector",

abstract = "Searches for exclusive decays of the Higgs boson into 𝐷∗ 𝛾 and of the 𝑍 boson into 𝐷0𝛾 and 𝐾0𝑠 𝛾 can probe flavour-violating Higgs boson and 𝑍 boson couplings to light quarks. Searches for these decays are performed with a 𝑝𝑝 collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at √𝑠 = 13 TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the 𝐷∗𝛾 and 𝐷0𝛾 channels, the observed (expected) 95\% confidence-level upper limits on the respective branching fractions are B(𝐻 →𝐷∗𝛾) < 1.0(1.2) × 10−3, B(𝑍 → 𝐷0𝛾) < 4.0(3.4) × 10−6, while the corresponding results in the 𝐾0𝑠 𝛾 channel are B(𝑍 → 𝐾0 𝑠 𝛾) < 3.1(3.0) × 10−6.",

author = "\{ATLAS Collaboration\} and S. Alderweireldt and J.F. Allen and T.M. Carter and Clark, \{P. J.\} and J.R. Curran and Farrington, \{S. M.\} and J.M. Gargan and \{Gonzalez Andana\}, R.Y. and C. Jiang and C. Leonidopoulos and Soberi, \{M. Firdaus M.\} and Martin, \{V. J.\} and L. Mijovi{\'c} and V.A. Parrish and E.A. Pender and T. Qiu and J.M. Silva and N. Themistokleous and E.M. Villhauer and B.M. Wynne and Z. Xu and E. Zaid",

year = "2024",

month = aug,

day = "1",

doi = "10.1016/j.physletb.2024.138762",

language = "English",

volume = "855",

pages = "1--25",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

ATLAS Collaboration, Alderweireldt, S, Allen, JF, Carter, TM, Clark, PJ, Curran, JR, Farrington, SM, Gargan, JM, Gonzalez Andana, RY, Jiang, C, Leonidopoulos, C, Soberi, MFM, Martin, VJ , Mijović, L, Parrish, VA, Pender, EA, Qiu, T , Silva, JM, Themistokleous, N, Villhauer, EM, Wynne, BM , Xu, Z & Zaid, E 2024, 'Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector', Physics Letters B, vol. 855, 138762, pp. 1-25. https://doi.org/10.1016/j.physletb.2024.138762

Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector. / ATLAS Collaboration ; Alderweireldt, S.; Allen, J.F. et al.
In: Physics Letters B, Vol. 855, 138762, 01.08.2024, p. 1-25.

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

TY - JOUR

T1 - Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Alderweireldt, S.

AU - Allen, J.F.

AU - Carter, T.M.

AU - Clark, P. J.

AU - Curran, J.R.

AU - Farrington, S. M.

AU - Gargan, J.M.

AU - Gonzalez Andana, R.Y.

AU - Jiang, C.

AU - Leonidopoulos, C.

AU - Soberi, M. Firdaus M.

AU - Martin, V. J.

AU - Mijović, L.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Qiu, T.

AU - Silva, J.M.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Wynne, B.M.

AU - Xu, Z.

AU - Zaid, E.

PY - 2024/8/1

Y1 - 2024/8/1

N2 - Searches for exclusive decays of the Higgs boson into 𝐷∗ 𝛾 and of the 𝑍 boson into 𝐷0𝛾 and 𝐾0𝑠 𝛾 can probe flavour-violating Higgs boson and 𝑍 boson couplings to light quarks. Searches for these decays are performed with a 𝑝𝑝 collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at √𝑠 = 13 TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the 𝐷∗𝛾 and 𝐷0𝛾 channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are B(𝐻 →𝐷∗𝛾) < 1.0(1.2) × 10−3, B(𝑍 → 𝐷0𝛾) < 4.0(3.4) × 10−6, while the corresponding results in the 𝐾0𝑠 𝛾 channel are B(𝑍 → 𝐾0 𝑠 𝛾) < 3.1(3.0) × 10−6.

AB - Searches for exclusive decays of the Higgs boson into 𝐷∗ 𝛾 and of the 𝑍 boson into 𝐷0𝛾 and 𝐾0𝑠 𝛾 can probe flavour-violating Higgs boson and 𝑍 boson couplings to light quarks. Searches for these decays are performed with a 𝑝𝑝 collision data sample corresponding to an integrated luminosity of 136.3 fb−1 collected at √𝑠 = 13 TeV between 2016–2018 with the ATLAS detector at the CERN Large Hadron Collider. In the 𝐷∗𝛾 and 𝐷0𝛾 channels, the observed (expected) 95% confidence-level upper limits on the respective branching fractions are B(𝐻 →𝐷∗𝛾) < 1.0(1.2) × 10−3, B(𝑍 → 𝐷0𝛾) < 4.0(3.4) × 10−6, while the corresponding results in the 𝐾0𝑠 𝛾 channel are B(𝑍 → 𝐾0 𝑠 𝛾) < 3.1(3.0) × 10−6.

U2 - 10.1016/j.physletb.2024.138762

DO - 10.1016/j.physletb.2024.138762

M3 - Letter

SN - 0370-2693

VL - 855

SP - 1

EP - 25

JO - Physics Letters B

JF - Physics Letters B

M1 - 138762

ER -

ATLAS Collaboration, Alderweireldt S, Allen JF, Carter TM, Clark PJ, Curran JR et al. Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector. Physics Letters B. 2024 Aug 1;855:1-25. 138762. Epub 2024 Jun 3. doi: 10.1016/j.physletb.2024.138762

Searches for exclusive Higgs boson decays into 𝐷∗𝛾 and 𝑍 boson decays into 𝐷0𝛾 and 𝐾0 𝑠 𝛾 in 𝑝𝑝 collisions at √𝑠 = 13 TeV with the ATLAS detector

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Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Cite this