2026-04-03
10:35 |
Multiplicity dependence of prompt and non-prompt $\boldsymbol{\mathrm{J}/\psi}$ production at midrapidity in pp collisions at $\mathbf{\sqrt{\textit{s}} = 13}$ TeV
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
The yields of prompt and non-prompt ${\rm J}/\psi$ and the fraction of non-prompt ${\rm J}/\psi$ are measured at midrapidity ($|y|<0.9$) via the dielectron decay channel as a function of the midrapidity charged-particle multiplicity ($|\eta|<0.9$) in pp collisions at $\sqrt{s} = 13$ TeV. The ${\rm J}/\psi$ yields and the multiplicity are normalized by their average value in inelastic collisions. [...]
arXiv:2604.07968; CERN-EP-2026-109.-
Geneva : CERN, 2026 - 39 p.
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2026-03-23
08:48 |
Wave-Function Femtometry: Hypertriton - The Ultimate Halo Nucleus
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
/ALICE
The interaction between nucleons and hyperons -- baryons containing a strange quark -- is key to understanding the properties of dense nuclear matter, such as that expected in the interior of neutron stars. Direct scattering experiments are hindered by the short lifetime of hyperons, prompting the study of hypernuclei -- bound states of nucleons and hyperons -- as an alternative approach [...]
arXiv:2604.07949; CERN-EP-2026-097.-
Geneva : CERN, 2026 - 29 p.
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2026-03-19
07:54 |
Dijet invariant mass of charged-particle jets in pp and p$-$Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
The ALICE collaboration presents the first measurement of the dijet invariant mass spectra of charged-particle jets in pp and p$-$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. Charged particles in the mid-pseudorapidity region, $|\eta|<0.9$, are clustered into jets using the anti-$k_{\rm T}$ algorithm with a resolution parameter $R=0.4$. [...]
arXiv:2604.07961; CERN-EP-2026-089.-
Geneva : CERN, 2026 - 21 p.
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2026-03-13
17:02 |
Measurement of the elliptic flow of $^3$He and $^3_\Lambda$H in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.36$ TeV
/ Abdallah, Dana Ali Hassan (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
/ALICE
The first measurement of the elliptic flow coefficient of (anti)${}^3_{\Lambda}$H and the study of the $v_2$ of $^3\overline{\mathrm{He}}$ measured in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.36$ TeV with the ALICE detector are presented. Based on the large data sample of approximately five billion events collected in 2023 during the LHC Run 3 data taking, these measurements provide important insights into the production mechanism of (anti)(hyper)nuclei, as well as into the phase-space distributions of nucleons and hyperons produced in heavy-ion collisions [...]
arXiv:2603.19398; CERN-EP-2026-079.-
Geneva : CERN, 2026 - 21 p.
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2026-03-13
10:40 |
Measurement of the B$^0$-meson production cross section in proton--proton collisions at $\sqrt{\textit{s}}=13.6$ TeV
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
/ALICE
This article reports the measurement of the transverse-momentum ($p_\mathrm{T}$) differential production cross section of $\mathrm{B^0}$ mesons in proton$-$proton collisions at a centre-of-mass energy of $\sqrt{s}=13.6~\mathrm{TeV}$ with the ALICE detector at the CERN LHC. For the first time, the $\mathrm{B^0}$ production cross section is measured at midrapidity ($|y|<0.5$) down to $p_\mathrm{T}=1~\mathrm{GeV}/c$ at LHC energies. [...]
arXiv:2603.18904; CERN-EP-2026-077.-
Geneva : CERN, 2026 - 29 p.
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2026-03-12
14:55 |
Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at $\sqrt{s}=13$ TeV
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
The first measurements of the average transverse-momentum fraction ($\langle z \rangle$) as a function of transverse momentum ($p_{\rm T}$) for strange baryons ($\Lambda$ and $\bar{\Lambda}$) and strange mesons (K$^0_{\rm S}$), produced in mini-jets defined through angular correlations in pp collisions at $\sqrt{s}=13$ TeV, are reported by the ALICE Collaboration at the LHC. The observable is obtained using a novel method, where the angular correlation between the strange hadrons and inclusive charged hadrons is weighted by the $p_{\rm T}$ of correlated particles at small angular distance. [...]
arXiv:2603.19387; CERN-EP-2026-074.-
Geneva : CERN, 2026 - 21 p.
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2026-03-11
21:20 |
Evidence of different $\Lambda_{\rm c}^+$-baryon and D-meson elliptic flow in Pb$-$Pb collisions at $\sqrt{\textit{s}_\mathrm{NN}}$ = 5.36 TeV with ALICE at the LHC
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
/ALICE
The ALICE collaboration reports the azimuthal-anisotropy coefficient $v_2$ of prompt D$^0$, D$^+$, D$_{\rm s}^+$ mesons and the first measurement of $v_2$ of prompt $\Lambda_{\rm c}^+$ baryons in semicentral Pb$-$Pb collisions at a center-of-mass energy per nucleon pair of $\sqrt{s_{\rm NN}} = 5.36$ TeV. The D mesons and $\Lambda_{\rm c}^+$ baryons are reconstructed in their hadronic decays at midrapidity ($|y| < 0.8$) in the transverse-momentum interval $0.5 < p_{\rm T} < 24$ GeV/$c$ [...]
arXiv:2603.18966; CERN-EP-2026-070.-
Geneva : CERN, 2026 - 24 p.
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2026-03-10
14:05 |
Production of $\Xi$ and $\Omega$ hyperons in high-multiplicity proton-proton collisions at $\sqrt{\textit{s}} = 13$ TeV
/ Ali Hassan Abdallah, Dana (Wayne State U.) ; Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Agarwal, Kshitij (Trieste U. ; INFN, Trieste) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Agrawal, Neelima (Bologna U. ; INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahuja, Ishaan (Kosice U.) et al.
This paper presents the first measurements of $\Xi$ and $\Omega$ hyperon yields at the highest multiplicities reached in pp collisions at $\sqrt{s}=13$ TeV. This measurement exploits the high-multiplicity pp collisions collected by ALICE with dedicated triggers. [...]
arXiv:2603.19374; CERN-EP-2026-062.-
Geneva : CERN, 2026 - 24 p.
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2026-03-04
10:32 |
Measurement of correlations between elliptic flow and mean transverse momentum in pp, p$-$Pb, and Pb$-$Pb collisions at the LHC
/ Abualrob, Ibrahim Jaser (Houston U.) ; Acharya, Shreyasi (INFN, Bari) ; Aglieri Rinella, Gianluca (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; 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.) ; Akishina, Valentina (Frankfurt U., FIAS) et al.
Measurements of the event-by-event correlation between elliptic flow ($v_2$) and the mean transverse momentum ($[p_{\rm T}]$) using the modified Pearson correlation coefficient $\rho(v_2^2,[p_{\rm T}])$ are reported in pp collisions at $\sqrt{s} = 13$ TeV, and in p$-$Pb and Pb$-$Pb collisions at a center-of-mass energy per nucleon pair $\sqrt{s_{_\mathrm{NN}}} = 5.02$ TeV. This analysis is based on the full LHC Run 2 dataset recorded by ALICE and is performed for the first time in small collision systems with the ALICE detector. [...]
arXiv:2603.13217; CERN-EP-2026-056.-
Geneva : CERN, 2026 - 21 p.
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2026-02-28
04:06 |
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Charmed nuclei and exotic charmed meson production at CBM@FAIR and ALICE@LHC
/ Chimruang, Thanaporn (Suranaree U. of Tech. ; Darmstadt, GSI) ; Herold, Christoph (Suranaree U. of Tech.) ; Limphirat, Ayut (Suranaree U. of Tech.) ; Yan, Yupeng (Suranaree U. of Tech.) ; Steinheimer, Jan (Darmstadt, GSI ; Frankfurt U.) ; Dönigus, Benjamin (Goethe U., Frankfurt (main)) ; Reichert, Tom (CERN) ; Vovchenko, Volodymyr (Houston U.) ; Bleicher, Marcus (Goethe U., Frankfurt (main) ; Helmholtz Res. Acad. Hesse for FAIR)
We make predictions for the expected multiplicities of exotic charmed hadrons and charmed nuclei in Au+Au collisions at SIS100 and LHC beam energies, using input on light hadron and charm production from the UrQMD transport model, and applying the Thermal-FIST model. [...]
arXiv:2602.22676 ; CERN-TH-2026-026.
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