CERN Accelerating science

CERN Document Server 272 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 1.13 секунд. 
1.
Measurement of anti-3He nuclei absorption in matter and impact on their propagation in the Galaxy / ALICE Collaboration
Antimatter particles such as positrons and antiprotons abound in the cosmos. Much less common are light antinuclei, composed of antiprotons and antineutrons, which can be produced in our galaxy via high-energy cosmic-ray collisions with the interstellar medium or could also originate from the annihilation of the still undiscovered dark-matter particles. [...]
arXiv:2202.01549; CERN-EP-2022-023.- Geneva : CERN, 2022-12-12 - 11 p. - Published in : Nature Phys. 19 (2023) 61-71 Draft (restricted): PDF; Fulltext: document - PDF; 2202.01549 - PDF;
2.
Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at sNN= 5.02 TeV / ALICE Collaboration
The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y|<0.5) in PbPb collisions at a nucleonnucleon center-of-mass energy of sNN=5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT=1 GeV/c in the 010% and 3050% centrality classes, indicates a significant suppression, up to a factor of about three, for pT>5 GeV/c in the 010% central PbPb collisions. [...]
arXiv:2202.00815; CERN-EP-2022-015.- Geneva : CERN, 2022-12-21 - 24 p. - Published in : JHEP 12 (2022) 126 Draft (restricted): PDF; Fulltext: 2202.00815 - PDF; document - PDF;
3.
Multiplicity dependence of charged-particle jet production in pp collisions at s=13 TeV / ALICE Collaboration
The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s=13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. [...]
arXiv:2202.01548; CERN-EP-2022-011.- Geneva : CERN, 2022-06-07 - 30 p. - Published in : Eur. Phys. J. C 82 (2022) 514 Draft (restricted): PDF; Fulltext: document - PDF; 2202.01548 - PDF;
4.
First study of the two-body scattering involving charm hadrons / ALICE Collaboration
This Letter presents the first measurement of the interaction between charm hadrons and nucleons. The two-particle momentum correlations of pD and ¯pD+ pairs are measured by the ALICE Collaboration in high-multiplicity pp collisions at s=13 TeV. [...]
arXiv:2201.05352; CERN-EP-2022-006.- Geneva : CERN, 2022-09-01 - 22 p. - Published in : Phys. Rev. D 106 (2022) 052010 Draft (restricted): PDF; Fulltext: 2201.05352 - PDF; PhysRevD.106.052010 - PDF;
5.
Forward rapidity J/ψ production as a function of charged-particle multiplicity in pp collisions at s= 5.02 and 13 TeV / ALICE Collaboration
The production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in protonproton (pp) collisions at center-of-mass energies s= 5.02 and 13 TeV. The J/ψ mesons are reconstructed via their decay into dimuons in the rapidity interval (2.5 <y< 4.0), whereas the charged-particle multiplicity density (\dnchdeta) is measured at midrapidity (|η|<1). [...]
arXiv:2112.09433; CERN-EP-2021-268.- Geneva : CERN, 2022-06-06 - 33 p. - Published in : JHEP 2206 (2022) 015 Draft (restricted): PDF; Fulltext: document - PDF; 2112.09433 - PDF;
6.
Neutral to charged kaon yield fluctuations in PbPb collisions at sNN = 2.76 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
We present the first measurement of event-by-event fluctuations in the kaon sector in PbPb collisions at sNN= 2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. [...]
arXiv:2112.09482; CERN-EP-2021-261.- Geneva : CERN, 2022-09-10 - 20 p. Draft (restricted): PDF; Fulltext: PDF;
7.
Constraining hadronization mechanisms with Λ+c/D0 production ratios in Pb–Pb collisions at sNN = 5.02 TeV / ALICE Collaboration
The production of prompt Λ+c baryons at midrapidity (|y| < 0.5) was measured in central (0–10%) and mid-central (30–50%) Pb–Pb collisions at the center-of-mass energy per nucleon–nucleon pair sNN = 5.02 TeV with the ALICE detector. The Λ+c production yield, the Λ+c/D0 production ratio, and the Λ+c nuclear modification factor RAA are reported. [...]
arXiv:2112.08156; CERN-EP-2021-260.- Geneva : CERN, 2023-04-10 - 24 p. - Published in : Phys. Lett. B 839 (2023) 137796 Draft (restricted): PDF; Fulltext: PDF;
8.
Production of light (anti)nuclei in pp collisions at s = 5.02 TeV / ALICE Collaboration
The study of the production of nuclei and antinuclei in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper, the production of protons, deuterons and 3He and their charge conjugates at midrapidity is studied as a function of the charged-particle multiplicity in inelastic pp collisions at s=5.02 TeV using the ALICE detector. [...]
arXiv:2112.00610; CERN-EP-2021-250.- Geneva : CERN, 2022-04-04 - 21 p. - Published in : Eur. Phys. J. C 82 (2022) 289 Draft (restricted): PDF; Fulltext: Publication - PDF; 2112.00610 - PDF;
9.
Observation of a multiplicity dependence in the pT-differential charm baryon-to-meson ratios in proton-proton collisions at s=13 TeV / ALICE Collaboration
The production of prompt D0, D+s, and Λ+c hadrons, and their ratios, D+s/D0 and Λ+c/D0, are measured in proton-proton collisions at \thirteen at midrapidity (|y|<0.5) with the ALICE detector at the LHC. The measurements are performed as a function of the charm-hadron transverse momentum (pT) in intervals of charged-particle multiplicity, measured with two multiplicity estimators covering different pseudorapidity regions. [...]
arXiv:2111.11948; CERN-EP-2021-245.- Geneva : CERN, 2022-04-04 - 25 p. - Published in : Phys. Lett. B 829 (2022) 137065 Draft (restricted): PDF; Fulltext: 2111.11948 - PDF; Publication - PDF; Supplemental material: PDF;
10.
K0SK0S and K0SK± femtoscopy in pp collisions at s= 5.02 and 13 TeV / ALICE Collaboration
Femtoscopic correlations with the particle pair combinations K0SK0S and K0SK± are studied in pp collisions at s=5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. [...]
arXiv:2111.06611; CERN-EP-2021-233.- 2022-10-10 - 15 p. - Published in : Phys. Lett. B 833 (2022) 137335 Draft (restricted): PDF; Fulltext: 2111.06611 - PDF; 1-s2.0-S0370269322004695-main - PDF; Publication - PDF;

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