The Rapidity Distributions and the Thermalization Induced Transverse Momentum Distributions in Au-Au Collisions at RHIC Energies by Zhi-Jin Jiang, Jia-Qi Hui, Yu Zhang

“…It is widely believed that the quark-gluon plasma (QGP) might be formed in the current heavy ion collisions. …”
Get full text

Multiplicity and Rapidity Dependent Study of (Multi)-strange Hadrons in d+Au collisions using the STAR detector by Aggarwal Ishu

“…Strangeness enhancement has long been considered as a signature of the quark-gluon plasma formation in heavy-ion collisions. Strangeness enhancement has also been observed in small systems at the Large Hadron Collider (LHC), but the underlying physics still needs to be fully understood. …”
Get full text

Simulating toponium formation signals at the LHC by Benjamin Fuks, Kaoru Hagiwara, Kai Ma, Ya-Juan Zheng

“…As an example, we study the formation of $$\eta _t$$ η t toponium states in the gluon fusion channel at the LHC, combining the re-weighted matrix elements with parton showering.…”
Get full text

Transverse momentum dependent parton densities in a proton from the generalized DAS approach by A. V. Kotikov, A. V. Lipatov, B. G. Shaikhatdenov, P. Zhang

“…Abstract We use the Bessel-inspired behavior of parton densities at small Bjorken x values, obtained in the case of the flat initial conditions for DGLAP evolution equations in the double scaling QCD approximation (DAS), to evaluate the transverse momentum dependent (TMD, or unintegrated) quark and gluon distribution functions in a proton. The calculations are performed analytically using the Kimber-Martin-Ryskin (KMR) prescription with different implementation of kinematical constraint, reflecting the angular and strong ordering conditions. …”
Get full text

Learning the simplicity of scattering amplitudes by Clifford Cheung, Aurélien Dersy, Matthew D. Schwartz

“…Starting from lengthy input expressions, our networks can generate the Parke-Taylor formula for five-point gluon scattering, as well as new compact expressions for five-point amplitudes involving scalars and gravitons. …”
Get full text

Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium by Hluf Negash, Shashank Bhatnagar

“…These input parameters so fixed were found to give good agreements with data on mass spectra of ground and excited states of pseudoscalar and vector quarkonia, leptonic decay constants of pseudoscalar and vector quarkonia, two-photon decays, and two-gluon decays of pseudoscalar quarkonia in our recent paper. …”
Get full text

Predictions for the Isolated Prompt Photon Production at the LHC at s = 13 TeV by Muhammad Goharipour, Hossein Mehraban

“…Some valuable information about the parton densities in the nucleon and nuclei, especially of the gluon, can also be achieved by analysing the measurements of the prompt photon production cross section whether inclusively or in association with heavy quarks or jets. …”
Get full text

Probing a new regime of ultra-dense gluonic matter using high-energy photons with the CMS experiment by Verma Pranjal

“…Overall these studies focus on the dominance of gluons in nuclear matter probed at higher energies.…”
Get full text

Balance Function in High-Energy Collisions by A. Tawfik, Asmaa G. Shalaby

“…The chemical evolution of the new-state-of-matter, the quark-gluon plasma, and its temporal-spatial evolution, femtoscopy of two-particle correlations, are accessible. …”
Get full text

A Multiquark Approach to Excited Hadrons and Regge Trajectories by S. S. Afonin

“…As a byproduct a certain relation expressing the constituent quark mass via the gluon and quark condensate is put forward. We show that our approach leads to an effective mass counting scheme for meson spectrum and results in the linear Regge and radial Regge trajectories by construction. …”
Get full text

Quarkonium Production and Proposal of the New Experiments on Fixed Target at the LHC by A. B. Kurepin, N. S. Topilskaya

“…The dissociation of quarkonium resonances produced in heavy ion collisions was suggested as a possible signal of the Quark-Gluon Plasma formation. At the CERN SPS, the anomalous suppression of the J/ψ production was observed in central Pb-Pb collisions by the NA50 collaboration. …”
Get full text

Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy by Fu-Hu Liu, Li-Na Gao, Roy A. Lacey

“…This knee point should be related to the searching for the onset of quark deconfinement and the critical point of quark-gluon plasma (QGP) phase transition.…”
Get full text

First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE by Merzlaya Anastasia

“…In particular, charm mesons are of vivid interest in the context of the study of the nature of the phasetransition between confined hadronic matter and the quark-gluon plasma. Recently, the NA61/SHINE experimental setup was upgraded with a high spatial resolution Vertex Detector which enables the reconstruction of secondary vertices from open charm meson decays. …”
Get full text

PHENIX highlights: Recent results from PHENIX by Shimomura Maya

“…The Relativistic Heavy Ion Collider (RHIC) PHENIX experiment has provided new insights into the behavior of quark-gluon plasma (QGP) under extreme conditions. While PHENIX concluded data collection in 2016, the collaboration remains actively engaged in analyzing the rich dataset yielding the following three important results recently. (1) Heavy flavor (HF) with charm and bottom quark separation indicates a clear mass dependence observed in central collisions. …”
Get full text

Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions by Kirill Tuchin

“…I demonstrate by explicit analytical calculation that after dropping by about one-two orders of magnitude during the first fm/c of plasma expansion, it freezes out and lasts for as long as quark-gluon plasma lives as a consequence of finite electrical conductivity of the plasma. …”
Get full text

Deconfinement and Freezeout Boundaries in Equilibrium Thermal Models by Abdel Nasser Tawfik, Muhammad Maher, A. H. El-Kateb, Sara Abdelaziz

“…At low baryonic density or high energies, both deconfinement and chemical freezeout boundaries are likely coincident, and therefore, the agreement with the lattice simulations becomes excellent as well, while at large baryonic density, the two boundaries become distinguishable forming a phase where hadrons and quark-gluon plasma likely coexist.…”
Get full text

Study of baryon-strangeness and charge-strangeness correlations in Pb–Pb collisions at √sNN = 5.02 TeV with ALICE by Saha Swati

“…In the quest to unravel the mysteries of the strong force and the underlying properties of the quark-gluon plasma, the ALICE collaboration at CERN has carried out a comprehensive study focusing on the correlations between net-conserved quantities such as net-baryon, net-charge and net- strangeness. …”
Get full text

Thermal axion production at hard and soft momenta by Killian Bouzoud, Jacopo Ghiglieri

“…In this paper we quantify the contribution to N eff and its uncertainty in models with axion-gluon couplings from thermal dynamics above the QCD transition. …”
Get full text

Proton internal pressure from deeply virtual Compton scattering on collider kinematics by H. Dutrieux, T. Meisgny, C. Mezrag, H. Moutarde

“…Moreover, the limitation to a leading-order description in the strong coupling of the data has provided only an indirect and weakly sensitive access to gluon degrees of freedom, solely through their mixing to quarks via evolution. …”
Get full text

Infrared and transcendental structure of two-loop supersymmetric QCD amplitudes by Gregor Kälin, Gustav Mogull, Alexander Ochirov, Bram Verbeek

“…Abstract Using a careful choice of infrared (IR) subtraction scheme, we demonstrate cancellation of all terms with transcendental weights 0, 1, 2 from the finite part of the full-color two-loop four-gluon N $$ \mathcal{N} $$ = 2 supersymmetric QCD amplitude, with Nf massless supersymmetric quarks. …”
Get full text