Evidence of Higgs Boson Inclusive Production at High Transverse Momentum Decaying to a Pair of b-Quarks with the ATLAS Detector
Physical review letters, cilt.137, sa.7, ss.71801, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 137 Sayı: 7
- Basım Tarihi: 2026
- Doi Numarası: 10.1103/vbxg-71c2
- Dergi Adı: Physical review letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, EMBASE, INSPEC, MathSciNet, MEDLINE, zbMATH, DIALNET
- Sayfa Sayıları: ss.71801
- Ankara Üniversitesi Adresli: Evet
Özet
This Letter reports on the first evidence of inclusive Higgs-boson production at high transverse momentum in the bb[over ¯] final state, reconstructed in a single large-radius jet. The results are based on proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider at a center-of-mass energies of 13 and 13.6 TeV, corresponding to a total integrated luminosity of 301 fb^{-1}. The study profits from the large background suppression provided by the use of a new transformer-based algorithm for jet identification and the sharper mass and transverse momentum, p_{T}, resolution from a dedicated regression model. The yield relative to the standard model prediction for Higgs bosons produced at p_{T} larger than 450 GeV is measured to be 1.53±0.27)_{-0.27}^{+0.33}±0.17, where the first uncertainty is statistical, the second is experimental systematic, and the third accounts for theory systematic, corresponding to an observed (expected) significance of 3.8σ(2.5σ) relative to the background-only hypothesis. Results are also obtained in three Higgs boson p_{T} intervals and found to be compatible with standard model predictions, where the first uncertainty is statistical, the second is experimental systematic, and the third accounts for theory systematic.