Publications [#375363] of Ashutosh V. Kotwal

Papers Published
  1. Aad, G; Abbott, B; Abeling, K; Abicht, NJ; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, BS; Bourdarios, CA; Adamczyk, L; Adamek, 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; Tamlihat, MA; Aitbenchikh, B; Aizenberg, I; Akbiyik, M; Åkesson, TPA; Akimov, AV; Akiyama, D; Akolkar, NN; Khoury, KA; Alberghi, GL; Albert, J; Albicocco, P; Albouy, GL; Alderweireldt, S; 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; Flores, CAA; Allport, PP; Aloisio, A; Alonso, F; Alpigiani, C; Estevez, MA; Fernandez, AA; Cardoso, MA; Alviggi, MG; Aly, M; Coutinho, YA; Ambler, A; Amelung, C; Amerl, M; Ames, CG; Amidei, D; Dos Santos, SPA; 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; Pozo, JAA; Aparo, MA; Bella, LA, Measurement of the H→ γγ and H→ ZZ∗→ 4 ℓ cross-sections in pp collisions at √s=13.6 TeV with the ATLAS detector, European Physical Journal C, vol. 84 no. 1 (January, 2024) [doi] .

    Abstract:
    The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→ 4 ℓ decay channels using 31.4 and 29.0 fb - 1 of pp collision data respectively, collected with the ATLAS detector at a centre-of-mass energy of s=13.6 TeV . To reduce the model dependence, the measurement in each channel is restricted to a particle-level phase space that closely matches the channel’s detector-level kinematic selection, and it is corrected for detector effects. These measured fiducial cross-sections are σfid , γ γ= 76-13+14 fb, and σfid , 4 ℓ= 2.80±0.74 fb, in agreement with the corresponding Standard Model predictions of 67.6 ± 3.7 fb and 3.67 ± 0.19 fb. Assuming Standard Model acceptances and branching fractions for the two channels, the fiducial measurements are extrapolated to the full phase space yielding total cross-sections of σ(pp→H)=67-11+12 pb and 46 ± 12 pb at 13.6 TeV from the di-photon and ZZ∗→ 4 ℓ measurements respectively. The two measurements are combined into a total cross-section measurement of σ(pp→ H) = 58.2 ± 8.7 pb, to be compared with the Standard Model prediction of σ(pp→ H) SM= 59.9 ± 2.6 pb.

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