ALICE Papers

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2025-08-06
18:15

First direct access to the $\rho^0$ p interaction via correlation studies at the LHC / ALICE Collaboration, CERN /ALICE
Direct measurements of the

$\rho^0$ p interaction have remained so far elusive, with most insights derived indirectly from photoproduction or low-energy partial wave analyses. This letter presents the first direct observation of the

$\rho^0$ p interaction, obtained through two-particle correlations measured in high-multiplicity, ultrarelativistic proton-proton collisions at

$\sqrt{s} = 13$ TeV by the ALICE Collaboration at the LHC. [...]
CERN-EP-2025-179.- Geneva : CERN, 2025 Draft (restricted): PDF;

Detaljnije

2025-08-04
10:46

Multiplicity dependence of $\Xi_{\rm c}^+$ and $\Xi_{\rm c}^0$ production in pp collisions at $\sqrt{s} = 13$ TeV / ALICE Collaboration, CERN
The first measurement at midrapidity (

$|y|< 0.5$ ) of the production yield of the strange-charm baryons

$\Xi_{\rm c}^+$ and

$\Xi_{\rm c}^0$ as a function of charged-particle multiplicity in proton

$-$ proton collisions at

$\sqrt{s}=13$ TeV with the ALICE experiment at the LHC is reported. The

$\Xi_{\rm c}^+$ baryon is reconstructed via the

$\Xi_{\rm c}^+ \rightarrow \Xi^- \pi^+ \pi^+$ decay channel in the range

$4 < p_{\rm T} <12$ GeV/

$c$ , while the

$\Xi_{\rm c}^0$ baryon is reconstructed via both the

$\Xi_{\rm c}^0 \longrightarrow \Xi^- \pi^+$ and

$\Xi_{\rm c}^0 \rightarrow {\rm e}^+ \nu_{\rm e}$ decay channels in the range

$2 < p_{\rm T} <12$ GeV/

$c$ . [...]
CERN-EP-2025-175.- Geneva : CERN, 2025 - 27. Draft (restricted): PDF;

Detaljnije

2025-07-11
20:57

Multiplicity dependence of K $\mathbf{^*(892)^{\pm}}$ production in pp collisions at $\mathbf{\sqrt{{s}} = 13}$ TeV / Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al.
The first results of K

$^*$ (892)

$^{\pm}$ production at midrapidity (

$|y| < 0.5$ ) in pp collisions at

$\sqrt{s} = 13$ TeV as a function of the event multiplicity are presented. The K

$^*$ (892)

$^{\pm}$ has been reconstructed via its hadronic decay channel K

$^*$ (892)

$^{\pm} \rightarrow~\pi^{\pm}~+~{\rm K}^0_{\rm S}$ using the ALICE detector at the LHC. [...]
arXiv:2507.19332; CERN-EP-2025-159.- Geneva : CERN, 2025 - 25 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-07-03
13:58

$\overline{\Sigma}^{\pm}$ production in pp and p $-$ Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with ALICE / Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al.
The transverse momentum spectra and integrated yields of

$\overline{\Sigma}^{\pm}$ have been measured in pp and p

$-$ Pb collisions at

$\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ALICE experiment. Measurements are performed via the newly accessed decay channel

$\overline{\Sigma}^{\pm} \rightarrow \overline{n} \pi^{\pm}$ . [...]
arXiv:2507.13183; CERN-EP-2025-151.- Geneva : CERN, 2025 - 28 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-07-01
15:01

Multiplicity dependence of $\mathbf{{\rm f}_{0}(980)}$ production in pp collisions at $\mathbf{\sqrt{s}}=$ 13 TeV / Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al.
The dependence of

$\mathrm{f}_{0}$ (980) production on the final-state charged-particle multiplicity is reported for proton--proton (pp) collisions at the centre-of-mass energy,

$\sqrt{s}=$ 13 TeV. The production of

$\mathrm{f}_{0}$ (980) is measured with the ALICE detector via the

$\mathrm{f}_0 (980) \rightarrow \pi^{+}\pi^{-}$ decay channel in a midrapidity region of

$|y|<$ ~0.5. [...]
arXiv:2507.19347; CERN-EP-2025-146.- Geneva : CERN, 2025 - 23 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-06-24
10:19

Medium-induced modification of azimuthal correlations of electrons from heavy-flavor hadron decays with charged particles in Pb--Pb collisions at $\mathbf{\sqrt{s_{\rm{NN}}} = 5.02}$ TeV / Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al.
The azimuthal-correlation distributions between electrons from the decays of heavy-flavor hadrons and associated charged particles in Pb-Pb collisions at

$\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV are reported for the 0-10% and 30-50% centrality classes. This is the first measurement to provide access to the azimuthal-correlation observables in the heavy-flavor sector in Pb-Pb collisions. [...]
arXiv:2507.13197; CERN-EP-2025-137.- Geneva : CERN, 2025 - 34 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-06-02
22:57

Study of $\langle p_{\rm T} \rangle$ and its higher moments, and extraction of the speed of sound in Pb-Pb collisions with ALICE / Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al. /ALICE
Ultrarelativistic heavy-ion collisions produce a state of hot and dense strongly interacting QCD matter called quark-gluon plasma (QGP). On an event-by-event basis, the volume of the QGP in ultracentral collisions is mostly constant, while its total entropy can vary significantly due to quantum fluctuations, leading to variations in the temperature of the system. [...]
arXiv:2506.10394; CERN-EP-2025-126.- Geneva : CERN, 2025 - 35 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-04-22
15:54

Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC / Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al. /ALICE
This work reports femtoscopy correlations of p

$-$ p (p

$-$ p) and p

$-$ d (p

$-$ d) pairs measured in Pb

$-$ Pb collisions at center-of-mass energy

$\sqrt{s_{\rm NN}} = 5.02$ TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass (

$m_{\rm T}$ ) and of the average charge particle multiplicity

$\langle {\rm d}N_{\rm ch}/{\rm d}\eta \rangle^{1/3}$ for three centrality intervals (0

$-$ 10%, 10

$-$ 30%, 30

$-$ 50%). [...]
arXiv:2505.01061; CERN-EP-2025-096.- Geneva : CERN, 2025 - 25 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-04-02
07:21

Long-range transverse momentum correlations and radial flow in Pb–Pb collisions at the LHC / Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) ; Ahuja, Ishaan (Kosice U.) ; Akbar, Zulkaida (Jakarta LIPI, Indonesian Inst. Sci.) et al. /ALICE
This Letter presents measurements of long-range transverse-momentum correlations using a new observable,

$v_0 ( p_{\rm T} )$ , which serves as a probe of radial flow and medium properties in heavy-ion collisions. Results are reported for inclusive charged particles, pions, kaons, and protons across various centrality intervals in Pb-Pb collisions at

$\sqrt{s_{\rm NN}} = 5.02$ TeV, recorded by the ALICE detector. [...]
arXiv:2504.04796; CERN-EP-2025-084.- Geneva : CERN, 2025 - 24 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

2025-04-01
07:01

D $^0$ -meson-tagged jet axes difference in proton-proton collisions at $\sqrt{s }= 5.02$ TeV / Acharya, Shreyasi (INFN, Bari) ; Agarwal, Apar (Calcutta, VECC) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) ; Ahuja, Ishaan (Kosice U.) et al.
Heavy-flavor quarks produced in proton–proton (pp) collisions provide a unique opportunity to investigate the evolution of quark-initiated parton showers from initial hard scatterings to final-state hadrons. By examining jets that contain heavy-flavor hadrons, this study explores the effects of both perturbative and non-perturbative QCD on jet formation and structure. [...]
arXiv:2504.02571; CERN-EP-2025-083.- Geneva : CERN, 2025 - 29 p. Draft (restricted): PDF; Fulltext: PDF;

Detaljnije

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