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We present the first experimental study that maps the transformation of nuclear quadrupole resonances from the pure nuclear quadrupole regime to the quadrupole-perturbed Zeeman regime. The transformation presents an interesting…

Quantum Physics · Physics 2009-11-13 E. A. Donley , J. L. Long , T. C. Liebisch , E. R. Hodby , T. A. Fisher , J. Kitching

We investigate how neutral-ion collisional damping modifies the spectral properties and energy partition of compressible MHD turbulence using a suite of 3D two-fluid simulations. By systematically varying the neutral-ion coupling strength…

Astrophysics of Galaxies · Physics 2026-02-17 Yue Hu

Atom-ion interactions occur through the electric dipole which is induced by the ion on the neutral atom. In a Langevin collision, in which the atom and ion overcome the centrifugal barrier and reach a short internuclear distance, their…

According to Burrows et al.'s acoustic mechanism for core-collapse supernova explosions, the primary, l=1, g-mode in the core of the proto-neutron star is excited to an energy of ~ 10^{50} ergs and damps by the emission of sound waves. Here…

Astrophysics · Physics 2009-11-13 Nevin N. Weinberg , Eliot Quataert

The nuclear collective response at finite temperature is investigated for the first time in the quantum framework of the small amplitude limit of the extended TDHF approach, including a non-Markovian collision term. It is shown that the…

Nuclear Theory · Physics 2008-11-26 Denis Lacroix , Philippe Chomaz , Sakir Ayik

The early stages of high energy heavy ion collisions are studied in the Color Glass Condensate framework, with a real-time classical lattice simulation. When increasing the coupling constant, we observe a rapid increase of the ratio of…

High Energy Physics - Phenomenology · Physics 2013-12-16 Thomas Epelbaum , Francois Gelis

We study the kinetics of the first order phase separation transition in boson-fermion cold-atom mixtures. At sufficiently low temperatures such a transition is driven by quantum fluctuations responsible for the formation of critical nuclei…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Dmitry Solenov , Dmitry Mozyrsky

We explore the quantum dynamics of nuclear spin relaxation in cold collisions of $^1\Sigma^+$ molecules with structureless atoms in an external magnetic field. To this end, we develop a rigorous coupled-channel methodology, which accounts…

Chemical Physics · Physics 2023-06-29 Rebekah Hermsmeier , Xiaodong Xing , Timur V. Tscherbul

Sound attenuation in low temperature amorphous solids originates from their disordered structure. However, its detailed mechanism is still being debated. Here we analyze sound attenuation starting directly from the microscopic equations of…

Disordered Systems and Neural Networks · Physics 2022-04-27 Grzegorz Szamel , Elijah Flenner

An analysis method is proposed to study the forward-backward (FB) multiplicity fluctuation in high-energy nuclear collisions, built on the earlier work of Bzdak and Teaney. The method allows the decomposition of the centrality dependence of…

Nuclear Theory · Physics 2016-04-27 Jiangyong Jia , Sooraj Radhakrishnan , Mingliang Zhou

To explore the structure of the QCD phase diagram in high baryon density domain, several high-energy nuclear collision experiments in a wide range of beam energies are currently performed or planned using many accelerator facilities. In…

Measurement of M, the total multiplicity, for central collision between comparable mass heavy ions can provide a signature for first order phase transition. The derivative of M with respect to E*/A where E* is the excitation energy in the…

Nuclear Theory · Physics 2017-06-28 S. Mallik , G. Chaudhuri , P. Das , S Das Gupta

We investigate the inelastic spin-flip rate for electrons in a quantum dot due to their contact hyperfine interaction with lattice nuclei. In contrast to other works, we obtain a spin-phonon coupling term from this interaction by taking…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Veniamin A. Abalmassov , Florian Marquardt

Initial partonic eccentricities in Au+Au collisions at center-of-mass energy $\sqrt{s_{NN}}$ = 200 GeV are investigated using a multi-phase transport model with string melting scenario. The initial eccentricities in different order of…

Nuclear Theory · Physics 2017-06-06 L. Ma , G. L. Ma , Y. G. Ma

In the present work we investigate the source of azimuthal asymmetry for nuclear collision using a model that contemplates particles produced in the initial hard collisions and the collective effects described by a Blast-Wave like…

High Energy Physics - Phenomenology · Physics 2023-09-26 Lucas Soster Moriggi , Érison dos Santos Rocha , Magno Valério Trindade Machado

We investigate the time evolution and asymptotic behavior of a system of two two-level atoms (qubits) interacting off-resonance with a single mode radiation field. The two atoms are coupled to each other through dipole-dipole as well as…

Quantum Physics · Physics 2021-06-09 Gehad Sadiek , Wiam Al-Drees , Salwa Shaglel , Hala Elhag

Transverse-mass spectra, their inverse slopes and mean transverse masses in relativistic collisions of heavy nuclei are analyzed in a wide range of incident energies 2.7 GeV $\le \sqrt{s_{NN}}\le$ 39 GeV. The analysis is performed within…

Nuclear Theory · Physics 2014-02-12 Yu. B. Ivanov

We study the transfer of angular momentum in high energy nuclear collisions from the colliding nuclei to the region around midrapidity, using the classical approximation of the Color Glass Condensate (CGC) picture. We find that the angular…

Nuclear Theory · Physics 2018-03-14 Rainer J. Fries , Guangyao Chen , Sidharth Somanathan

Within the framework of a multiphase transport model (AMPT), the $\phi$-meson production is studied in d+Au collisions at \srt = {200} GeV in the forward (d-going, $1.2<y<2.2$) and backward (Au-going, $-2.2<y<-1.2$) direction. The AMPT…

Nuclear Theory · Physics 2016-04-18 Y. J. Ye , J. H. Chen , Y. G. Ma , S. Zhang , C. Zhong

$\alpha$-clustered structures in light nuclei could be studied through "snapshots" taken by relativistic heavy-ion collisions. A multiphase transport (AMPT) model is employed to simulate the initial structure of collision nuclei and the…

High Energy Physics - Phenomenology · Physics 2020-11-18 Yi-An Li , Song Zhang , Yu-Gang Ma