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ALICE Papers

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2024-09-18
10:10
Addendum: Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration, CERN
This is an addendum to the article "Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV" published in Phys. Rev. [...]
CERN-EP-2024-247.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-16
10:08
Exposing the parton-hadron transition within jets with energy-energy correlators in pp collisions at $\mathbf{\sqrt{\textit s}=5.02} \ \mathbf{TeV}$ / ALICE Collaboration, CERN
This paper presents a fully-corrected measurement of the energy-energy correlator (EEC) within jets in pp collisions. The EEC traces the energy flow as a highly energetic parton undergoes a QCD shower followed by the confinement of partons into hadrons, probing the correlation function of the energy flow inside jets. [...]
CERN-EP-2024-245.- Geneva : CERN, 2024 - 26. Draft (restricted): PDF;

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2024-09-16
10:04
Measurement of the inclusive isolated-photon production cross section in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration, CERN /ALICE
The ALICE Collaboration at the CERN LHC has measured the inclusive production cross section of isolated photons at midrapidity as a function of the photon transverse momentum ($p_{\rm T}^{\gamma}$), in Pb-Pb collisions in different centrality intervals, and in pp collisions, at centre-of-momentum energy per nucleon pair of $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV. The photon transverse momentum range is between 10-14 and 40-140 GeV/$c$, depending on the collision system and on the Pb-Pb centrality class. [...]
CERN-EP-2024-244.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-12
15:46
First observation of strange baryon enhancement with effective energy in pp collisions at the LHC / ALICE Collaboration, CERN /ALICE
The production of (multi-)strange hadrons is measured at midrapidity in proton-proton (pp) collisions at $\sqrt{s} = 13$ TeV as a function of the local charged-particle multiplicity in the pseudorapidity interval ${|\eta|<0.5}$ and of the very-forward energy measured by the ALICE Zero-Degree Calorimeters (ZDC). The latter provides information on the effective energy available for particle production in the collision once subtracted from the centre-of-mass energy. [...]
CERN-EP-2024-243.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-11
17:30
Investigating charm quark energy loss in medium with the nuclear modification factor of D$^0$-tagged jets / ALICE Collaboration, CERN /ALICE
The nuclear modification factor $R_\mathrm{AA}$ of charm jets, identified by the presence of a D$^0$ meson among the jet constituents, has been measured for the first time in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at the LHC. The D$^0$ mesons and their charge conjugates are reconstructed from the hadronic decay D$^0\to \mathrm K^{-}\pi^{+}$. [...]
CERN-EP-2024-240.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-11
08:58
Measurement of f$_{1}$(1285) production in pp collisions at $\sqrt{s}$ = 13 TeV / ALICE Collaboration, CERN /ALICE
This study presents the first measurement of the f$_{1}$(1285) resonance using the ALICE detector in inelastic proton--proton collisions at a center-of-mass energy of 13 TeV. The resonance is reconstructed at midrapidity ($|y| <$ 0.5) through the hadronic decay channel f$_{1} (1285) \rightarrow \mathrm{K^{0}_{S} K^{\pm}\pi^{\mp}}$. [...]
CERN-EP-2024-239.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-11
08:42
Search for quasi-particle scattering in the quark$-$gluon plasma with jet splittings in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration, CERN
The ALICE Collaboration reports measurements of the large relative transverse momentum ($k_{\text{T}}$) component of jet substructure in pp and in central and semicentral Pb$-$Pb collisions at center-of-mass energy per nucleon pair $\sqrt{s_{\text{NN}}}=5.02$ TeV. Enhancement in the yield of such large-$k_{\text{T}}$ emissions in central Pb$-$Pb collisions is predicted to arise from partonic scattering with quasi-particles of the quark$-$gluon plasma. [...]
CERN-EP-2024-238.- Geneva : CERN, 2024 Draft (restricted): PDF;

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2024-09-09
11:01
First measurement of $\pmb{\mathrm{D_{s1}}(1^{+})(2536)^+}$ and $\pmb{\mathrm{D_{s2}^{*}(2^{+})(2573)^+}}$ production in proton--proton collisions at $\pmb{\sqrt{s} = 13}$ TeV at the LHC / ALICE Collaboration, CERN
The production yields of the orbitally excited charm-strange mesons $\mathrm{D_{s1}(1^{+})(2536)^+}$ and $\mathrm{D_{s2}^{*}(2^{+})(2573)^+}$ were measured for the first time in proton--proton (pp) collisions at a center-of-mass energy of $\sqrt{s} =13$ TeV with the ALICE experiment at the LHC. The $\mathrm{D_{s1}^+}$ and $\mathrm{D_{s2}^{*+}}$ mesons were measured at midrapidity ($|y|<0.5$) in minimum-bias and high-multiplicity pp collisions in the transverse-momentum interval $2 < p_{\rm T} < 24$ GeV/$c$. [...]
CERN-EP-2024-233.- Geneva : CERN, 2024 - 21. Draft (restricted): PDF;

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2024-09-09
10:01
Coherent J/$\psi$ photoproduction at midrapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration, CERN
The coherent J/$\psi$ photoproduction cross section is measured for the first time at midrapidity in peripheral to semicentral Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV. The centrality differential cross section ${\rm d} \sigma/ {\rm d}y$ is reported for the centrality range 40--90\%, together with the doubly-differential cross section ${\rm d}^2 \sigma /{\rm d}y {\rm d} p_{\rm T}$, extracted in two peripheral centrality classes. [...]
CERN-EP-2024-232.- Geneva : CERN, 2024 - 23. Draft (restricted): PDF;

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2024-09-05
09:32
Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at $\sqrt{s}=13$ TeV / Acharya, Shreyasi (Clermont-Ferrand U.) ; 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. /ALICE
Short-range correlations between charged particles are studied via two-particle angular correlations in pp collisions at $\sqrt{s}=13$ TeV. The correlation functions are measured as a function of the relative azimuthal angle $\Delta\varphi$ and the pseudorapidity separation $\Delta\eta$ for pairs of primary charged particles within the pseudorapidity interval $|\eta|<0.9$ and the transverse-momentum range $1<p_{\rm T}<8$ GeV/$c$. [...]
arXiv:2409.04501; CERN-EP-2024-229.- Geneva : CERN, 2024 - 28 p. Draft (restricted): PDF; Fulltext: PDF;

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