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Elastic electron scattering from oriented odd-Aaxially deformed nuclei is studied in the plane-wave Born approximation. The nuclear structure is described within a microscopic selfconsistent Skyrme deformed Hartree-Fock approximation with…

Nuclear Theory · Physics 2023-01-11 Pedro Sarriguren

We present a systematic study of particle production in $Ne+Ne$ collisions at $\sqrt{s_{\mathrm{NN}}} = 5.36$ TeV using the A Multi-Phase Transport (AMPT) model with string melting (SM) configuration. The analysis compares spherical and…

High Energy Physics - Phenomenology · Physics 2026-04-23 M. U. Ashraf , A. M. Khan , M. Shahid , Faraz Mohd Mehdi

In extracting deformation parameters from multipole moments for deformed nuclei, one commonly uses the formulas which are based on a sharp-cut density distribution. We discuss a possible ambiguity for this procedure and clarify the role of…

Nuclear Theory · Physics 2009-11-11 K. Hagino , N. W. Lwin , M. Yamagami

Using deep convolutional neural network (CNN), the nature of the QCD transition can be identified from the final-state pion spectra from hybrid model simulations of heavy-ion collisions that combines a viscous hydrodynamic model with a…

High Energy Physics - Phenomenology · Physics 2020-06-16 Yi-Lun Du , Kai Zhou , Jan Steinheimer , Long-Gang Pang , Anton Motornenko , Hong-Shi Zong , Xin-Nian Wang , Horst Stöcker

The LHCb experiment at the Large Hadron Collider (LHC) is designed to perform high-precision measurements of heavy-hadron decays, which requires the collection of large data samples and a good understanding and suppression of multiple…

High Energy Physics - Experiment · Physics 2023-05-01 Julián García Pardiñas , Marta Calvi , Jonas Eschle , Andrea Mauri , Simone Meloni , Martina Mozzanica , Nicola Serra

An interesting opportunity to determine thermodynamic and transport properties in more detail is to identify generic statistical properties of initial density perturbations. Here we study event-by-event fluctuations in terms of correlation…

High Energy Physics - Phenomenology · Physics 2014-08-29 Stefan Floerchinger , Urs Achim Wiedemann

Hydrodynamic models fail to describe the near-equal $v_2/v_3$ ratio observed in ultra-central heavy-ion collisions, despite their success in other centrality classes. This discrepancy stems from shear viscosity suppressing higher-order…

Nuclear Theory · Physics 2025-04-29 Qi Wang , Long-Gang Pang , Xin-Nian Wang

There is growing evidence that high-energy scattering processes involving nuclei can offer unique insights into the many-body correlations present in nuclear ground states, in particular those of deformed nuclei. These processes involve,…

Nuclear Theory · Physics 2025-04-23 Jean-Paul Blaizot , Giuliano Giacalone

In hydrodynamicalmodeling of heavy-ion collisions the initial state spatial anisotropies translate into momentum anisotropies of the final state particle distributions. Thus, understanding the origin of the initial anisotropies and…

High Energy Physics - Phenomenology · Physics 2012-06-26 M. Alvioli , H. Holopainen , K. J. Eskola , M. Strikman

An important tool in studying the sub-femtoscale spacetime structure of matter in ultrarelativistic heavy-ion collisions is Hanbury-Brown-Twiss (HBT) intensity interferometry of identical particles in the final state of such collisions. We…

High Energy Physics - Phenomenology · Physics 2024-12-11 James Daniel Brandenburg , Haowu Duan , Zhoudunming Tu , Raju Venugopalan , Zhangbu Xu

We study the dynamics of quantum fluctuations which take place at the earliest stage of high-energy processes and the conditions under which the data from e-p deep-inelastic scattering may serve as an input for computing the initial data…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Makhlin , E. Surdutovich

We study parameter degeneracies that can occur in long-baseline neutrino appearance experiments due to nonstandard interactions (NSI) in neutrino propagation. For a single off-diagonal NSI parameter, and neutrino and antineutrino…

High Energy Physics - Phenomenology · Physics 2016-05-26 Jiajun Liao , Danny Marfatia , Kerry Whisnant

Background: Understanding nuclear shape is a crucial problem in nuclear physics. In particular, determining the sign of quadrupole deformation, i.e., whether prolate or oblate, remains a challenging problem. Purpose: Our aim is to propose a…

Nuclear Theory · Physics 2024-10-02 Shin Watanabe , Yoshiki Suzuki , Masaaki Kimura , Kazuyuki Ogata

The general idea of information entropy provided by C.E. Shannon "hangs over everything we do" and can be applied to a great variety of problems once the connection between a distribution and the quantities of interest is found. The Shannon…

Nuclear Theory · Physics 2018-02-20 Chun-Wang Ma , Yu-Gang Ma

The centrality or the number of initial-state sources $V$ of the system produced in heavy ion collision is a concept that is not uniquely defined and subject to significant theoretical and experimental uncertainties. We argue that a more…

Nuclear Theory · Physics 2020-07-01 Jiangyong Jia , Chunjian Zhang , Jun Xu

Traditionally, events collected at relativistic heavy-ion colliders are classified according to some centrality estimator (e.g. the number of produced charged particles) related to the initial energy density and volume of the system. In a…

Data Analysis, Statistics and Probability · Physics 2019-06-26 A. Beraudo , A. De Pace , M. Monteno , M. Nardi , F. Prino

Jet reconstruction in an ultra-relativistic heavy-ion collision suffers from a notoriously large, fluctuating thermal background. Traditional background subtraction methods struggle to remove this soft background while preserving the jet's…

High Energy Physics - Phenomenology · Physics 2025-12-16 Umar Sohail Qureshi , Raghav Kunnawalkam Elayavalli

The analysis of the statistical and dynamical fluctuations in nucleus-nucleus collisions on an event-by-event basis strongly relies on a comparison with specially constructed artificial events where statistical fluctuations and kinematical…

Nuclear Experiment · Physics 2007-05-23 Grazyna Odyniec

The choice of optimal event variables is crucial for achieving the maximal sensitivity of experimental analyses. Over time, physicists have derived suitable kinematic variables for many typical event topologies in collider physics. Here we…

High Energy Physics - Phenomenology · Physics 2021-05-24 Doojin Kim , Kyoungchul Kong , Konstantin T. Matchev , Myeonghun Park , Prasanth Shyamsundar

Preliminary data by the STAR collaboration at the BNL Relativistic Heavy Ion Collider shows that the elliptic flow, $v_2$, and the average transverse momentum, $\langle p_t \rangle$, of final-state hadrons produced in high-multiplicity…

Nuclear Theory · Physics 2021-02-23 Giuliano Giacalone