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Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV

Publication ,  Journal Article
Aad, G; Aakvaag, E; Abbott, B; Abeling, K; Abicht, NJ; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, BS; Adelman, J ...
Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
August 1, 2024
Published version (DOI)

A measurement of the Standard Model Higgs boson produced in association with a W or Z boson and decaying into a pair of τ-leptons is presented. This search is based on proton-proton collision data collected at s=13 TeV by the ATLAS experiment at the LHC corresponding to an integrated luminosity of 140 fb−1. For the Higgs boson candidate, only final states with at least one τ-lepton decaying hadronically (τ→hadrons+ντ) are considered. For the vector bosons, only leptonic decay channels are considered: Z→ℓℓ and W→ℓνℓ, with ℓ=e,μ. An excess of events over the expected background is found with an observed (expected) significance of 4.2 (3.6) standard deviations, providing evidence of the Higgs boson produced in association with a vector boson and decaying into a pair of τ-leptons. The ratio of the measured cross-section to the Standard Model prediction is μVHττ=1.28−0.29+0.30(stat.)−0.21+0.25(syst.). This result represents the most accurate measurement of the VH(ττ) process achieved to date.

Duke Scholars

Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
Mark C. Kruse
Author Mark C. Kruse Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2024.138817

ISSN

0370-2693

Publication Date

August 1, 2024

Volume

855

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

Citation

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Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., … Aoki, T. (2024). Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 855. https://doi.org/10.1016/j.physletb.2024.138817
Aad, G., E. Aakvaag, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi, A. Aboulhorma, et al. “Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 855 (August 1, 2024). https://doi.org/10.1016/j.physletb.2024.138817.
Aad G, Aakvaag E, Abbott B, Abeling K, Abicht NJ, Abidi SH, et al. Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2024 Aug 1;855.
Aad, G., et al. “Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 855, Aug. 2024. Scopus, doi:10.1016/j.physletb.2024.138817.
Aad G, Aakvaag E, Abbott B, Abeling K, Abicht NJ, Abidi SH, Aboulhorma A, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Agarwala J, Aggarwal A, Agheorghiesei C, Ahmad A, Ahmadov F, Ahmed WS, Ahuja S, Ai X, Aielli G, Aikot A, Ait Tamlihat M, Aitbenchikh B, Aizenberg I, Akbiyik M, Åkesson TPA, Akimov AV, Akiyama D, Akolkar NN, Aktas S, Al Khoury K, Alberghi GL, Albert J, Albicocco P, Albouy GL, Alderweireldt S, Alegria ZL, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JF, Allendes Flores CA, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alvarez Estevez M, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Amaral Coutinho Y, Ambler A, Amelung C, Amerl M, Ames CG, Amidei D, Amirie KJ, Amor Dos Santos SP, Amos KR, Ananiev V, Anastopoulos C, Andeen T, Anders JK, Andrean SY, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antipov E, Antonelli M, Anulli F, Aoki M, Aoki T. Measurement of the VH,H → ττ process with the ATLAS detector at 13 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2024 Aug 1;855.
Journal cover image

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2024.138817

ISSN

0370-2693

Publication Date

August 1, 2024

Volume

855

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics