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Measurement of the

Journal articles  - Journal Article
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Acharya, BS ...
Published in: Journal of High Energy Physics
July 1, 2026

The first measurement of the magnitude of the CKM quark mixing matrix element |Vcb| using on-shell W-boson decays is presented. The measurement is made with tt¯ events from pp collision data corresponding to an integrated luminosity of 140 fb−1 at a centre-of-mass energy of 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. A value of: (Formula presented.) is measured, where the uncertainties have roughly equal contributions from the limited size of the data sample and from systematic effects. This is consistent with existing measurements made at much lower energy scales in B hadron decays. While the sensitivity does not yet rival that of previous determinations, this novel approach probes a very different physical situation, namely the rare hadronic t→bb¯c decay at high momentum-transfer, rather than semileptonic B decays at low momentum-transfer.

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Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

July 1, 2026

Volume

2026

Issue

7

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
 

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Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., … Arbiol Val, S. J. (2026). Measurement of the. Journal of High Energy Physics, 2026(7). https://doi.org/10.1007/JHEP07(2026)078
Aad, G., E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, et al. “Measurement of the.” Journal of High Energy Physics 2026, no. 7 (July 1, 2026). https://doi.org/10.1007/JHEP07(2026)078.
Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, et al. Measurement of the. Journal of High Energy Physics. 2026 Jul 1;2026(7).
Aad, G., et al. “Measurement of the.” Journal of High Energy Physics, vol. 2026, no. 7, July 2026. Scopus, doi:10.1007/JHEP07(2026)078.
Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, Abidi SH, Aboelela M, Aboulhorma A, Abramowicz H, Acharya BS, Ackermann A, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Aggarwal A, Agheorghiesei C, Ahmad A, Ahmadov F, Ahuja S, Ai X, Aielli G, Aikot A, Ait Tamlihat M, Åkesson TPA, Akiyama D, Akolkar NN, Aktas S, Alberghi GL, Albert J, Alberti U, Albicocco P, 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, Allaire C, Allbrooke BMM, Allen DR, Allen JS, Allen JF, Alley CS, Almazan ER, Aloisio A, Alonso F, Alpigiani C, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Amaral Coutinho Y, Amelung C, Amerl M, Amezza T, Amini B, Amirie K, Amirkhanov A, Amperiadou D, An S, Anastopoulos C, Andeen T, Anders JK, Anderson AC, Andreazza A, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Antipov E, Antonelli M, Anulli F, Aoki M, Aoki T, Aparo MA, Aperio Bella L, Apicella M, Appelt C, Apyan A, Arampatzi M, Arbiol Val SJ. Measurement of the. Journal of High Energy Physics. 2026 Jul 1;2026(7).
Journal cover image

Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

July 1, 2026

Volume

2026

Issue

7

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics