Measurement of the cross-section for the production of a W boson in association with b-jets in pp collisions at √s=13 TeV with the ATLAS detector

@article{collaboration2026measurement,
  title = {{Measurement of the cross-section for the production of a W boson in association with b-jets in pp collisions at $$ \sqrts=13 $$ TeV with the ATLAS detector}},
  author = {The ATLAS collaboration and G. Aad and E. Aakvaag and B. Abbott and S. Abdelhameed and K. Abeling and N. J. Abicht and S. H. Abidi and M. Aboelela and A. Aboulhorma and H. Abramowicz and B. S. Acharya and A. Ackermann and J. Ackerschott and C. Adam Bourdarios and L. Adamczyk and S. V. Addepalli and M. J. Addison and J. Adelman and A. Adiguzel and T. Adye and A. A. Affolder and Y. Afik and M. N. Agaras and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and S. Ahuja and X. Ai and G. Aielli and A. Aikot and M. Ait Tamlihat and T. P. A. Åkesson and D. Akiyama and N. N. Akolkar and S. Aktas and G. L. Alberghi and J. Albert and U. Alberti and P. Albicocco and S. Alderweireldt and Z. L. Alegria and M. Aleksa and I. N. Aleksandrov and C. Alexa and T. Alexopoulos and F. Alfonsi and M. Algren and M. Alhroob and B. Ali and H. M. J. Ali and S. Ali and S. W. Alibocus and M. Aliev and G. Alimonti and C. Allaire and B. M. M. Allbrooke and D. R. Allen and J. S. Allen},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)027},
  url = {https://link.springer.com/10.1007/JHEP10(2026)027},
  note = {CC BY 4.0},
}

TY  - JOUR
TI  - Measurement of the cross-section for the production of a W boson in association with b-jets in pp collisions at √s=13 TeV with the ATLAS detector
AU  - The ATLAS collaboration
AU  - G. Aad
AU  - E. Aakvaag
AU  - B. Abbott
AU  - S. Abdelhameed
AU  - K. Abeling
AU  - N. J. Abicht
AU  - S. H. Abidi
AU  - M. Aboelela
AU  - A. Aboulhorma
AU  - H. Abramowicz
AU  - B. S. Acharya
AU  - A. Ackermann
AU  - J. Ackerschott
AU  - C. Adam Bourdarios
AU  - L. Adamczyk
AU  - S. V. Addepalli
AU  - M. J. Addison
AU  - J. Adelman
AU  - A. Adiguzel
AU  - T. Adye
AU  - A. A. Affolder
AU  - Y. Afik
AU  - M. N. Agaras
AU  - A. Aggarwal
AU  - C. Agheorghiesei
AU  - A. Ahmad
AU  - F. Ahmadov
AU  - S. Ahuja
AU  - X. Ai
AU  - G. Aielli
AU  - A. Aikot
AU  - M. Ait Tamlihat
AU  - T. P. A. Åkesson
AU  - D. Akiyama
AU  - N. N. Akolkar
AU  - S. Aktas
AU  - G. L. Alberghi
AU  - J. Albert
AU  - U. Alberti
AU  - P. Albicocco
AU  - S. Alderweireldt
AU  - Z. L. Alegria
AU  - M. Aleksa
AU  - I. N. Aleksandrov
AU  - C. Alexa
AU  - T. Alexopoulos
AU  - F. Alfonsi
AU  - M. Algren
AU  - M. Alhroob
AU  - B. Ali
AU  - H. M. J. Ali
AU  - S. Ali
AU  - S. W. Alibocus
AU  - M. Aliev
AU  - G. Alimonti
AU  - C. Allaire
AU  - B. M. M. Allbrooke
AU  - D. R. Allen
AU  - J. S. Allen
PY  - 2026
DA  - 2026/10/02
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)027
UR  - https://link.springer.com/10.1007/JHEP10(2026)027
AB  - A bstract : This paper presents a measurement of the production cross-section of a W boson associated with one or two jets, where at least one jet originates from a b -quark. The data are collected with the ATLAS detector at the LHC in proton-proton collisions at √s=13 s = 13 TeV, corresponding to an integrated luminosity of 140 fb ⁻¹ . Differential cross-sections are presented as a function of the transverse momentum of the b -jet for both the electron and muon decay modes of the W boson. The results corrected for all detector effects are presented in a fiducial region defined with basic lepton and jet kinematics, and compared with theoretical predictions. The combined fiducial cross-section of W + b -jets for the electron and muon channels is measured to be 16 . 6 ± 1 . 9 pb, which is consistent with the next-to-leading-order QCD prediction of 16 . 8 ± 2 . 3 pb. The relative precision of this measurement is improved by approximately a factor of two compared with the previous ATLAS measurement at √s=7 s = 7 TeV.
SN  - 1029-8479
ER  -