Szczegóły publikacji
Opis bibliograficzny
Charged jet cross section and fragmentation in proton-proton collisions at $\sqrt{s}=7$ TeV / S. Acharya, [et al.], P. J. Konopka, [et al.] // Physical Review. D ; ISSN 2470-0010. — Tytuł poprz.: Physical Review D. Particles, fields, gravitation, and cosmology ; ISSN: 1550-7998. — 2019 — vol. 99 iss. 1, s. 012016-1–012016-16. — Bibliogr. s. 012016-9–012016-11. — P. Konopka - afiliacja: European Organization for Nuclear Research (CERN), Geneva, Switzerland
Autorzy (1020)
- Acharya Shreyasi
- Konopka Piotr
Dane bibliometryczne
| ID BaDAP | 132961 |
|---|---|
| Data dodania do BaDAP | 2021-03-12 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevD.99.012016 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review, D |
Abstract
We report the differential charged jet cross section and jet fragmentation distributions measured with the ALICE detector in proton-proton collisions at a center-of-mass energy root S = 7 TeV. Jets with pseudorapidity vertical bar eta vertical bar < 0.5 are reconstructed from charged particles using the anti-k(T) jet-finding algorithm with a resolution parameter R = 0.4. The jet cross section is measured in the transverse momentum interval 5 <= p(T)(ch jet) < 100 GeV/c. Jet fragmentation is studied measuring the scaled transverse momentum spectra of the charged constituents of jets in four intervals of jet transverse momentum between 5 and 30 GeV/c. The measurements are compared to calculations from the PYTHIA model as well as next-to-leading-order perturbative QCD calculations with POWHEG+PYTHIA8. The charged jet cross section is well described by POWHEG for the entire measured range of p(T)(ch jet). For p(T)(ch jet) > 40 GeV/c, the PYTHIA calculations also agree with the measured charged jet cross section. PYTHIA6 simulations describe the fragmentation distributions to 15%. Larger discrepancies are observed for PYTHIA8.
