Jet fragmentation function and groomed substructure of bottom quark jets in proton-proton collisions at 5.02 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics (Q1) | ||
| Dergi ISSN | 1029-8479 Dergi Bilgileri (2026) | ||
| Makale Dili | İngilizce | Basım Tarihi | 04-2026 |
| Kabul Tarihi | 28-01-2026 | Yayınlanma Tarihi | 17-04-2026 |
| Cilt / Sayı / Sayfa | 2026 / 4 / – | DOI | 10.1007/JHEP04(2026)147 |
| Makale Linki | https://hal.science/hal-05374121/ | ||
| UAK Araştırma Alanları |
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| Özet |
| A measurement of the substructure of bottom quark jets (b jets) in proton-proton (pp) collisions is presented. The measurement uses data collected in pp collisions at = 5.02 TeV recorded by the CMS experiment in 2017, corresponding to an integrated luminosity of 301. An algorithm to identify and cluster the charged decay daughters of b hadrons is developed for this analysis, which facilitates the exposure of the gluon radiation pattern of b jets using iterative Cambridge-Aachen declustering. The soft-drop-groomed jet radius, , and momentum balance, , of b quark jets are presented. These observables can be used to test perturbative quantum chromodynamics predictions that account for mass effects. Because the b hadron is partially reconstructed from its charged decay daughters, only charged particles are used for the jet substructure studies. In addition, a jet fragmentation function, , is measured, which is defined as the distribution of the ratio of the transverse momentum () of the partially reconstructed b hadron with respect to the charged-particle component of the jet . The substructure variable distributions are unfolded to the charged-particle level. The b jet substructure is compared to the substructure of jets in an inclusive jet sample that is dominated by light-quark and gluon jets in order to assess the role of the b quark mass. A strong suppression of emissions at small values is observed for b jets when compared to inclusive jets, consistent with the dead-cone effect. The measurement is also compared with theoretical predictions from Monte Carlo event generators. This is the first substructure measurement of b jets that … |
| Anahtar Kelimeler |
| Hadron-Hadron Scattering | Jet Physics | Jet Substructure and Boosted Jets |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 1 |
| Scopus | 2 |
| Google Scholar | 10 |