Refine
Year of publication
Document Type
- Article (31)
- Preprint (20)
- Working Paper (1)
Language
- English (52)
Has Fulltext
- yes (52)
Is part of the Bibliography
- no (52)
Keywords
- Hadron-Hadron Scattering (5)
- exotic (4)
- invasion (4)
- biological invasion (3)
- colonisation (3)
- dispersal (3)
- introduction (3)
- Alien (2)
- Collective Flow (2)
- Jets (2)
- Collective Flow, (1)
- Hard Scattering (1)
- Heavy Ion Experiments (1)
- Heavy Quark Production (1)
- Multi-Parton Interactions (1)
- QCD (1)
- Quark Deconfinement (1)
- Quarkonium (1)
- alien (1)
- cost (1)
- economy (1)
- impact (1)
The production of prompt Î+c baryons has been measured at midrapidity in the transverse momentum interval 0<pT<1 GeV/c for the first time, in pp and p-Pb collisions at a centre-of-mass energy per nucleon-nucleon collision sNNââââ=5.02 TeV. The measurement was performed in the decay channel Î+câpK0S by applying new decay reconstruction techniques using a Kalman-Filter vertexing algorithm and adopting a machine-learning approach for the candidate selection. The pT-integrated Î+c production cross sections in both collision systems were determined and used along with the measured yields in Pb-Pb collisions to compute the pT-integrated nuclear modification factors RpPb and RAA of Î+c baryons, which are compared to model calculations that consider nuclear modification of the parton distribution functions. The Î+c/D0 baryon-to-meson yield ratio is reported for pp and p-Pb collisions. Comparisons with models that include modified hadronisation processes are presented, and the implications of the results on the understanding of charm hadronisation in hadronic collisions are discussed. A significant (3.7Ï) modification of the mean transverse momentum of Î+c baryons is seen in p-Pb collisions with respect to pp collisions, while the pT-integrated Î+c/D0 yield ratio was found to be consistent between the two collision systems within the uncertainties.
The production of prompt +c baryons has been measured at midrapidity in the transverse momentum interval 0 < pT < 1 GeV/c for the first time, in pp and pâPb collisions at a center-of-mass energy per nucleon-nucleon collision âsNN = 5.02 TeV. The measurement was performed in the decay channel +c â pK0S by applying new decay reconstruction techniques using a Kalman-Filter vertexing algorithm and adopting a machine-learning approach for the candidate selection. The pT -integrated +c production cross sections in both collision systems were determined and used along with the measured yields in PbâPb collisions to compute the pT -integrated nuclear modification factors RpPb and RAA of +c baryons, which are compared to model calculations that consider nuclear modification of the parton distribution functions. The +c /D0 baryon-to-meson yield ratio is reported for pp and pâPb collisions. Comparisons with models that include modified hadronization processes are presented, and the implications of the results on the understanding of charm hadronization in hadronic collisions are discussed. A significant (3.7Ï) modification of the mean transverse momentum of + c baryons is seen in pâPb collisions with respect to pp collisions, while the pT -integrated +c /D0 yield ratio was found to be consistent between the two collision systems within the uncertainties.