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Studies of light hadron and nuclei production are fundamental to characterize the hot and dense fireball created in ultra-relativistic heavy ion collisions and to investigate hadronisation mechanisms at the LHC. Observables investigated as…

高能物理 - 实验 · 物理学 2019-12-30 Domenico Colella

This Letter presents the first experimental evidence of the attractive strong interaction between a proton and a $\phi$ meson. The result is obtained from two-particle correlations of combined p-$\phi \oplus \overline{\rm {p}}$-$\phi$ pairs…

核实验 · 物理学 2021-12-17 ALICE Collaboration

The physics programme of the ALICE experiment at CERN-LHC comprises besides studies of high-energy heavy-ion collisions measurements of proton-proton interactions at unprecedented energies, too. This paper focuses on the global event…

核实验 · 物理学 2019-08-13 Ingrid Kraus

Fluctuation measurements are important sources of information on the mechanism of particle production at LHC energies. This article reports the first experimental results on third-order cumulants of the net-proton distributions in Pb$-$Pb…

核实验 · 物理学 2023-11-28 ALICE Collaboration

In these proceedings, measurements of angular correlations between hadron pairs in pp collisions obtained by the ALICE experiment at the LHC are presented and compared with phenomenological predictions. Correlations between particles…

高能物理 - 实验 · 物理学 2020-06-01 Jonatan Adolfsson

Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this paper a search is performed at the ATLAS experiment for slow-moving charged…

高能物理 - 实验 · 物理学 2015-03-19 The ATLAS Experiment

We propose a stroboscopic method to dynamically decouple the effects of two-body atom-atom interactions for ultracold atoms, and realize a system dominated by elastic three-body interactions. Using this method, we show that it is possible…

量子气体 · 物理学 2014-11-06 K. W. Mahmud , E. Tiesinga , P. R. Johnson

In the absence of a global description of the experimental data on elastic and soft diffractive scattering from the first principles of QCD, model-independent analyses may provide useful phenomenological insights for the development of the…

高能物理 - 唯象学 · 物理学 2016-03-08 D. A. Fagundes , M. J. Menon , P. V. R. G. Silva

The ratio of elastic to total proton cross sections is related to the darkness of the spatial profile of inelastic interactions by a single parameter in the framework of a simple analytical model. Their critical values at LHC energies are…

高能物理 - 唯象学 · 物理学 2017-04-10 I. M. Dremin

Highlights from recent computations in lattice QCD involving baryons are presented. Calculations of the proton mass and spin decompositions are discussed, a percent level determination of the nucleon axial coupling is described, and…

核理论 · 物理学 2019-09-19 Colin Morningstar

The production of prompt $\rm \Lambda_{\rm c}^{+}$ 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 $\sqrt{s_{\rm NN}} = 5.02$…

核实验 · 物理学 2023-10-04 ALICE Collaboration

We investigate the astrophysical consequences of an attractive long-range interaction between dark matter and baryonic matter. Our study highlights the role of this interaction in inducing dynamical friction between dark matter and stars,…

高能物理 - 唯象学 · 物理学 2025-03-06 Yang Ma , Zihui Wang

Axion-like particles (ALPs) are hypothetical particles that serve as promising candidates for cold dark matter. Portals like inelastic axion scattering and axion propagated force have been employed to search for the upper limit of the ALPs'…

高能物理 - 唯象学 · 物理学 2025-07-24 Dongyi Yang , Chenxi Sun , Jianwei Zhang

Correlation functions of hadrons can be accessed in high-energy collisions of atomic nuclei, revealing information about the underlying interaction. This work complements experimental efforts to study nucleon-deuteron $Nd$ -- with $N=p$…

核理论 · 物理学 2023-06-06 M. Viviani , S. König , A. Kievsky , L. E. Marcucci , B. Singh , O. Vázquez Doce

We investigate the interaction-induced resistivity of ultracold fermions in a three-dimensional optical lattice. In situ observations of transport dynamics enable the determination of real and imaginary resistivity. In the strongly…

The entanglement properties of systems in which elastic and inelastic reactions occur in projectile-target interactions is studied. A new measure of entanglement, the scattering entropy, based on the unitarity of the $S-$matrix (probability…

核理论 · 物理学 2023-06-27 Gerald A. Miller

A search for non-resonant new phenomena, originating from either contact interactions or large extra spatial dimensions, has been carried out using events with two isolated electrons or muons. These events, produced at the LHC in…

高能物理 - 实验 · 物理学 2013-01-08 ATLAS Collaboration

Low energy antiprotons offer excellent opportunities to study properties of fundamental forces and symmetries in nature. Experiments with them can contribute substantially to deepen our fundamental knowledge in atomic, nuclear and particle…

高能物理 - 实验 · 物理学 2009-11-11 Klaus P. Jungmann

The production of mesons containing strange quarks (K$^0_s$, $\phi$) and both singly and doubly strange baryons ($\Lambda$, Anti-$\Lambda$, and $\Xi$+Anti-$\Xi$) are measured at central rapidity in pp collisions at $\sqrt{s}$ = 0.9 TeV with…

高能物理 - 实验 · 物理学 2017-09-29 ALICE Collaboration

We present recent results from lattice QCD relevant for the study of strongly interacting matter as it is produced in heavy ion collision experiments. The equation of state at non-vanishing density from a Taylor expansion up to $6^{th}$…

高能物理 - 格点 · 物理学 2018-03-14 Olaf Kaczmarek