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We numerically demonstrate atomic Fabry-Perot resonances for a pulsed interacting Bose-Einstein condensate (BEC) source transmitting through double Gaussian barriers. These resonances are observable for an experimentally-feasible parameter…

The response of a particle in a periodic potential to an applied force is commonly described by an effective mass which accounts for the detailed interaction between the particle and the surrounding potential. Using a Bose-Einstein…

The contribution of gg->H+jets production process to the vector boson fusion production of the Higgs boson, VV->H, at LHC was evaluated with the ALPGEN generator and the PYTHIA shower Monte Carlo including a jet-parton matching procedure.…

High Energy Physics - Phenomenology · Physics 2007-05-25 M. V. Acosta , A. Nikitenko

The total cross section for the near threshold eta production in proton-proton collisions has been investigated with the assumption that the production mechanism is due to the emission of a meson x (pi, eta, sigma) from one of the nucleons…

Nuclear Theory · Physics 2009-10-30 M. Batinic , A. Svarc , T. -S. H. Lee

Inspired by the recent Hall C and GlueX measurements of $J/\psi$ photoproduction, a systematic analysis of the contribution of quantum anomalous energy (QAE) to the proton mass is carried out under the framework of the vector meson…

High Energy Physics - Phenomenology · Physics 2022-12-07 Xiao-Yun Wang , Jingxuan Bu , Fancong Zeng

In this talk the most recent results obtained by interfacing GoSam with external Monte Carlo event generators are presented and summarized. In the last year the automatic one-loop amplitude generator GoSam has been used for the computation…

High Energy Physics - Phenomenology · Physics 2013-12-06 Gionata Luisoni

The collisional interaction in a Bose condensate represents a non-linearity which in analogy with non-linear optics gives rise to unique quantum features. In this paper we apply a Monte Carlo method based on the positive P…

Quantum Physics · Physics 2009-11-07 Uffe V. Poulsen , Klaus Molmer

The elementary excitations in antiferromagnets are magnons, quasiparticles with integer spin and Bose statistics. In an experiment their density is controlled efficiently by an applied magnetic field and can be made finite to cause the…

Strongly Correlated Electrons · Physics 2008-03-17 T. Giamarchi , Ch. Rüegg , O. Tchernyshyov

We use the recently introduced independent-atom-model pixel counting method to calculate proton-impact net ionization cross sections for a large class of biologically relevant systems including pyrimidines, purines, amino acids, and…

Atomic and Molecular Clusters · Physics 2019-10-02 Hans Jürgen Lüdde , Marko Horbatsch , Tom Kirchner

We investigate the zero-temperature properties of a diluted homogeneous Bose gas made of $N$ particles interacting via a two-body square-well potential by perfor ming Monte Carlo simulations. We tune the interaction strength to achieve…

Quantum Gases · Physics 2014-04-21 Maurizio Rossi , Luca Salasnich , Francesco Ancilotto , Flavio Toigo

We elucidate generally the interference of independent Bose fields in view of the conditional probability for the particle number measurements, and clarify its relation to the source number statistics. Despite lack of intrinsic phases, the…

Quantum Physics · Physics 2011-11-07 Toru Kawakubo , Katsuji Yamamoto

Variational method is applied to describe Bose-Einstein condensates (BEC) interacting via a pseudo-potential, taking into account quantum fluctuations around the mean field by the Gaussian approximation. Contributions from the pair-wise…

Condensed Matter · Physics 2007-05-23 Y. Tsue , D. Vautherin , T. Matsui

We study the parity effect of the particle number in the interference fringes of a Bose-Einstein condensate released from a double-well potential. For a coherently splitting condensate in the double-well potential, with a decoupled two-mode…

Quantum Gases · Physics 2009-07-08 Hongwei Xiong , Shujuan Liu

We study the non-degenerate parametric amplifier for matter waves, implemented by colliding two Bose-Einstein condensates. The coherence of the amplified waves is shown by observing high contrast interference with a reference wave and by…

Soft Condensed Matter · Physics 2009-11-07 J. M. Vogels , J. K. Chin , W. Ketterle

PHENIX and STAR data on the intercept parameter of the two-pion Bose-Einstein correlation functions in $\sqrt{s_{NN}}= 200$ GeV Au+Au collisions were analysed in terms of various models of hadronic abundances. To describe these data, an…

Nuclear Theory · Physics 2009-11-18 R. Vertesi , T. Csorgo , J. Sziklai

When an energetic particle collides coherently with many medium particles at high energies, the Bose-Einstein symmetry with respect to the interchange of the exchanged virtual bosons leads to a destructive interference of the Feynman…

High Energy Physics - Phenomenology · Physics 2012-09-26 Cheuk-Yin Wong

We have studied the effects of Lorentz-violation in the Bose-Einstein condensation (BEC) of an ideal boson gas, by assessing both the nonrelativistic and ultrarelativistic limits. Our model describes a massive complex scalar field coupled…

High Energy Physics - Theory · Physics 2015-02-17 Rodolfo Casana , Kleber A. T. da Silva

Bose-Einstein correlations in proton-proton collisions at the LHC are well descried by the formula with two different scales. It is shown for the first time that the pions are produced by few small size sources distributed over a much…

High Energy Physics - Phenomenology · Physics 2019-06-21 V. A. Schegelsky , M. G. Ryskin

The behaviour of like-charge and unlike-charge second factorial moments in $e^+e^-$ reactions is discussed. It is argued that Monte Carlo calculation with the help of generators JETSET 7.4 and HERWIG 5.8 points to the conclusion that the…

High Energy Physics - Phenomenology · Physics 2008-02-03 J. Rameš

The one-loop effective action for Einstein gravity in a special one-parameter background gauge is calculated up to first order in a gauge parameter. It is shown that the effective action does not depend upon the gauge parameter on shell.

High Energy Physics - Theory · Physics 2010-11-01 P. M. Lavrov , A. A. Reshetnyak