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相关论文: Mass Distributions Beyond TDHF

200 篇论文

A summary of recent researches on nuclear dynamics with realistic microscopic quantum approaches is presented. The Balian-V\'en\'eroni variational principle is used to derive the time-dependent Hartree-Fock (TDHF) equation describing the…

核理论 · 物理学 2014-06-03 Cédric Simenel

We propose the universal approach to describe spreading widths of monopole, dipole and quadrupole giant resonances in heavy and superheavy spherical nuclei. Our approach is based on the ideas of the random matrix distribution of the…

核理论 · 物理学 2017-06-21 A. P. Severyukhin , S. Åberg , N. N. Arsenyev , R. G. Nazmitdinov

The formalism developed by Jain and Kundu for the propagation of a resonance in the nuclear medium has been modified to the case of heavy-ion collisions at relativistic energies. The formalism includes coherently the contribution to the…

核理论 · 物理学 2008-11-26 Bijoy Kundu , B. K. Jain

We employed the Skyrme-Hartree-Fock model to investigate the density distributions and their dependence on nuclear shapes and isospins in the superheavy mass region. Different Skyrme forces were used for the calculations with a special…

核理论 · 物理学 2009-11-11 J. C. Pei , F. R. Xu , P. D. Stevenson

The excitation of the giant dipole resonance by fusion is studied with N/Z asymmetry in the entrance channel. the TDHF solution exhibits a strong dipole vibration which can be associated with a giant vibration along the main axis of a…

核理论 · 物理学 2009-11-06 C. Simenel , Ph. Chomaz , G. de France

Searches for new resonances are performed using an unsupervised anomaly-detection technique. Events with at least one electron or muon are selected from 140 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV recorded by ATLAS at the Large…

高能物理 - 实验 · 物理学 2024-02-22 ATLAS Collaboration

Results are presented of a search for heavy particles decaying into two photons. The analysis is based on a 19.7 inverse femtobarn sample of proton-proton collisions at sqrt(s) = 8 TeV collected with the CMS detector at the CERN LHC. The…

高能物理 - 实验 · 物理学 2015-12-21 CMS Collaboration

A microscopic mean-field description of heavy ions fusion is performed in the framework of the Time-Dependent Hartree-Fock (TDHF) theory using a Skyrme interaction with the SLy4d parametrization. A good agreement with experiments is…

核理论 · 物理学 2008-03-11 Cédric Simenel , Benoît Avez

We consider a detailed account on the construction of the heavy-quark parton distribution functions for charm and bottom, starting from $n_f=3$ light flavors in the fixed-flavor number (FFN) scheme and by using the standard decoupling…

高能物理 - 唯象学 · 物理学 2020-09-23 S. Alekhin , J. Bluemlein , S. Moch

We present a new probe of strongly coupled electroweak symmetry breaking at the 14 TeV LHC by measuring a phase shift in the event distribution as a function of the decay azimuthal angles in massive gauge boson scattering. A large phase…

高能物理 - 唯象学 · 物理学 2015-12-16 Hitoshi Murayama , Vikram Rentala , Jing Shu

A search for a narrow Higgs boson resonance in the diphoton mass spectrum is presented based on data corresponding to 10 fb-1 of integrated luminosity from proton-antiproton collisions at \surds = 1.96 TeV collected by the CDF experiment.…

高能物理 - 实验 · 物理学 2013-02-06 the CDF Collaboration

Main properties of isoscalar giant multipole resonances (up to L=3), including L=0,2 overtones, in medium-mass closed-shell nuclei are described within the semimicroscopic particle-hole dispersive optical model. Main properties are…

核理论 · 物理学 2023-08-09 M. L. Gorelik , S. Shlomo , B. A. Tulupov , M. H. Urin

We study the equilibration and relaxation processes within the time-dependent Hartree-Fock approach using the Wigner distribution function. On the technical side we present a geometrically unrestricted framework which allows us to calculate…

核理论 · 物理学 2012-01-26 N. Loebl , A. S. Umar , J. A. Maruhn , P. -G. Reinhard , P. D. Stevenson , V. E. Oberacker

We present a method of analyzing invariant-mass spectra of kaon pairs resulting from decay of $\phi$ mesons produced in high-energy heavy-ion collisions. It can be used to extract the shifts in the mass and the width ($\Delta M$ and $\Delta…

高能物理 - 唯象学 · 物理学 2015-06-25 R. S. Bhalerao , S. K. Gupta

The density-constrained time-dependent Hartree-Fock (DC-TDHF) theory is a fully microscopic approach for calculating heavy-ion interaction potentials and fusion cross sections below and above the fusion barrier. We discuss recent…

核理论 · 物理学 2017-08-23 A. S. Umar , V. E. Oberacker , J. A. Maruhn , R. Keser

The ATLAS and CMS Collaborations of the Large Hadron Collider (LHC) have reported an excess of events in diphoton channel with invariant mass of about 750 GeV. With low energy supersymmetry breaking, we systematically consider the…

高能物理 - 唯象学 · 物理学 2016-10-12 Ran Ding , Yizhou Fan , Li Huang , Chuang Li , Tianjun Li , Shabbar Raza , Bin Zhu

A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2 fb$^{-1}$ of proton-proton collision data, collected at $\sqrt{s} = 13$ TeV by the ATLAS experiment…

高能物理 - 实验 · 物理学 2016-09-12 ATLAS Collaboration

A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=$13 TeV during…

高能物理 - 实验 · 物理学 2019-10-22 ATLAS Collaboration

We present the first realization of Stochastic TDHF, a theory which goes beyond pure mean-field dynamics, embracing dissipation as well as fluctuations. Applications to heavy-ion collisions in the Fermi energy domain are given and analyzed…

核理论 · 物理学 2009-10-30 E. Suraud , P. G. Reinhard

The equilibration of macroscopic degrees of freedom during the fusion of heavy nuclei, like the charge and the shape, are studied in the Time-Dependent Hartree-Fock theory. The pre-equilibrium Giant Dipole Resonance (GDR) is used to probe…

核理论 · 物理学 2008-11-26 Cédric Simenel , Philippe Chomaz , Gilles De France