Recent highlights

Light-nuclei wave functions probed via coalescence

Measurement of the coalescence parameters B₂ (left) and B₃ (right) as a function of transverse momentum in high-multiplicity pp collisions and comparison with theoretical predictions corresponding to different nuclear wave functions.

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First measurement of the strong proton-φ interaction at the LHC

Proton-φ momentum correlation function as a function of relative momentum, compared to the fit function, measured for the first time by the ALICE collaboration at the LHC in pp collisions at 13 TeV.

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Midrapidity J/ψ in pp at 5 and 13 TeV

Inclusive J/ψ production cross section measured at midrapidity for pp collisions compared to model calculations (left), and the beauty cross section at midrapidty as a function of c.m. energy (right panel).

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ALICE briefing for EPS-HEP2021: 26-30 July 2021

The ALICE Collaboration participates in EPS-HEP2021 with 1 plenary, 27 parallel and 7 poster presenters.

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Here’s the dead cone, finally!

Declustering D$^{0}$-meson tagged jets in pp collisions allows for the dynamic reconstruction of gluon emissions in the charm-quark shower, exposing the suppressed emission phase-space known as the dead-cone: arXiv.

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ALICE physics briefing for LHCP2021: 7-12 June 2021

The ALICE Collaboration presents several new physics results at the 9th Large Hadron Collider Physics conference LHPC2021 this week (https://indico.cern.ch/event/905399/), as well as the ongoing major detector upgrade for the LHC Run 3, prospects for further upgrades for Run 4, and for a completely new heavy-ion detector for Run 5 and beyond.

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Insight on the strong interaction of p-K pairs

Non-identical particle femtoscopy of kaon-proton pairs produced in Pb–Pb collisions at the LHC provides an accurate measurement of kaon–proton scattering parameters at low relative momentum: arXiv.

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Hadron formation differs outside of jets

In a recent study, the ALICE Collaboration has studied baryon-to-meson ratios with a new twist: by studying the ratios in two parts of the events separately – inside jets and in the event portion perpendicular to a jet cone. arXiv.

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ALICE measures light neutral mesons to high transverse momentum

Neutral pion and eta meson production cross sections at midrapidty were measured up to unprecedentedly high transverse momenta in proton-proton (pp) and proton-lead (p-Pb) collisions at √s_NN = 8 and 8.16 TeV, respectively. arXiv.

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Beauty frontier in pp: machine learning vs NNLO

The beauty-quark production cross section was measured at midrapidity by the ALICE Collaboration in pp collisions at √s = 5.02 TeV through non-prompt D-meson measurements exploiting machine-learning classification techniques arXiv.

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