Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Ewerz, Carlo"'
We use holography to investigate the dynamics of a vortex-anti-vortex dipole in a strongly coupled superfluid in 2+1 dimensions. The system is evaluated in numerical real-time simulations in order to study the evolution of the vortices as they approa
Externí odkaz:
http://arxiv.org/abs/2012.08716
Publikováno v:
Phys. Rev. Lett. 127, 101601 (2021)
Holographic duality provides a description of strongly coupled quantum systems in terms of weakly coupled gravitational theories in a higher-dimensional space. It is a challenge, however, to quantitatively determine the physical parameters of the qua
Externí odkaz:
http://arxiv.org/abs/2011.12968
Publikováno v:
PoS(DIS2019)052
We apply the tensor-pomeron model to small-$x$ deep-inelastic lepton-proton scattering and photoproduction. Our model includes a soft and a hard tensor pomeron as well as a reggeon contribution. Data with c.m. energies $6 < \sqrt{s} < 318$ GeV and vi
Externí odkaz:
http://arxiv.org/abs/1912.12194
On February 6, 2019, an EMMI workshop on 'Central exclusive production at the LHC' was held at Heidelberg. Here we make some remarks on the topics presented in the talks and the discussions of this meeting. We hope that this will be useful for furthe
Externí odkaz:
http://arxiv.org/abs/1908.11792
Publikováno v:
Phys. Rev. D 100, 114007 (2019)
The tensor-pomeron model is applied to low-x deep-inelastic lepton-nucleon scattering and photoproduction. We consider c.m. energies in the range 6 - 318 GeV and Q^2 < 50 GeV^2. In addition to the soft tensor pomeron, which has proven quite successfu
Externí odkaz:
http://arxiv.org/abs/1901.08524
We discuss different models for the spin structure of the nonperturbative pomeron: scalar, vector, and rank-2 symmetric tensor. The ratio of single-helicity-flip to helicity-conserving amplitudes in polarised high-energy proton-proton elastic scatter
Externí odkaz:
http://arxiv.org/abs/1606.08067
Publikováno v:
JHEP 03 (2018) 088
We study the free energy of a heavy quark-antiquark pair in a thermal medium using the AdS/CFT correspondence. We point out that a commonly used prescription for calculating this quantity leads to a temperature dependence in conflict with general pro
Externí odkaz:
http://arxiv.org/abs/1605.07181
Publikováno v:
PoS (CPOD2014) 037
We study the properties of heavy quarks as probes of strongly coupled plasmas with and without chemical potential by means of the gauge/gravity (AdS/CFT) duality. We compute the screening distance of a heavy quark-antiquark pair, its free energy, and
Externí odkaz:
http://arxiv.org/abs/1511.04006
We study the far-from-equilibrium dynamics of a (2+1)-dimensional superfluid at finite temperature and chemical potential using its holographic description in terms of a gravitational system in 3+1 dimensions. Starting from various initial conditions
Externí odkaz:
http://arxiv.org/abs/1410.3472
Autor:
Bolz, Arthur, Ewerz, Carlo, Maniatis, Markos, Nachtmann, Otto, Sauter, Michel, Schoning, Andre
We consider the reaction (gamma p) to (pi+ pi- p) at high energies. Our description includes dipion production via the resonances rho, omega, rho-prime and f2, and via non-resonant mechanisms. The calculation is based on a model of high energy scatte
Externí odkaz:
http://arxiv.org/abs/1409.8483