Constraints on jet quenching in p–Pb collisions at √sNN = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions
ALICE Collaboration. (2018). Constraints on jet quenching in p–Pb collisions at √sNN = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions. Physics Letters B, 783, 95-113. https://doi.org/10.1016/j.physletb.2018.05.059
Julkaistu sarjassa
Physics Letters BTekijät
Päivämäärä
2018Tekijänoikeudet
© 2018 European Organization for Nuclear Research. Funded by SCOAP3.
The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets
recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at √sNN = 5.02 TeV. Jets are
reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R = 0.2
and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil
jet distributions are reported for jet transverse momentum 15 < pch
T,jet < 50 GeV/c and are compared in
various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral
energy in the forward (Pb-going) direction. The semi-inclusive observable is self-normalized and such
comparisons do not require the interpretation of p–Pb event activity in terms of collision geometry, in
contrast to inclusive jet observables. These measurements provide new constraints on the magnitude
of jet quenching in small systems at the LHC. In p–Pb collisions with high event activity, the average
medium-induced out-of-cone energy transport for jets with R = 0.4 and 15 < pch
T,jet < 50 GeV/c is
measured to be less than 0.4 GeV/c at 90% confidence, which is over an order of magnitude smaller
than a similar measurement for central Pb–Pb collisions at √sNN = 2.76 TeV. Comparison is made to
theoretical calculations of jet quenching in small systems, and to inclusive jet measurements in p–Pb
collisions selected by event activity at the LHC and in d–Au collisions at RHIC.
...
Julkaisija
Elsevier B.V.ISSN Hae Julkaisufoorumista
0370-2693Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/28115316
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration (Springer Berlin Heidelberg, 2015)We report the measurement of a new observable of jet quenching in central Pb-Pb collisions at √ sNN = 2.76 TeV, based on the semi-inclusive rate of charged jets recoiling from a high transverse momentum (high-pT) charged ... -
Measurements of jet quenching using semi-inclusive hadron+jet distributions in pp and central Pb-Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (American Physical Society (APS), 2024)The ALICE Collaboration reports measurements of the semi-inclusive distribution of charged-particle jets recoiling from a high transverse momentum (high 𝑝T) charged hadron, in 𝑝𝑝 and central Pb-Pb collisions at ... -
New constraints for nuclear parton distribution functions from hadron–nucleus collision processes
Paakkinen, Petja (Jyväskylän yliopisto, 2019)This work studies collinearly factorizable nuclear parton distribution functions (nPDFs) in perturbative Quantum Chromodynamics (QCD) at next-to-leading order in the light of hadron–nucleus collision data which have not ... -
Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions
ALICE Collaboration (Springer, 2023)Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at √s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (pT) of 0.2 GeV/c and up to ... -
Measurement of emission-angle anisotropy via long-range angular correlations with high-pT hadrons in d+Au and p+p collisions at √sNN = 200 GeV
PHENIX Collaboration (American Physical Society, 2018)We present measurements of two-particle angular correlations between high-transverse-momentum (2 < pT < 11 GeV/c) π0 observed at midrapidity (|η| < 0.35) and particles produced either at forward (3.1 <η< 3.9) or backward ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.