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In the framework of a quasi-molecular approach, the formation of hydrogen atom in the pre-recombination period of evolution of the universe is analysed quantitatively. Calculations in an adiabatic multi-level representation enable estimates…

Atomic Physics · Physics 2020-12-02 Tamaz Kereselidze , Irakli Noselidze , John F. Ogilvie

Investigation of the cosmic microwave background formation processes is one of the most actual problem at present time. In this paper we analyze the response of the hydrogen atom to the external photon fields. Field characteristics are…

Atomic Physics · Physics 2015-06-04 D. Solovyev , V. K. Dubrovich , G. Plunien

We study the generation of Greenberger-Horne-Zeilinger (GHZ) states of three path-encoded photons. Inspired by the seminal work of Bouwmeester et al. [1] on polarization-entangled GHZ states, we find a corresponding path representation for…

Quantum Physics · Physics 2017-11-15 N. Bergamasco , M. Menotti , J. E. Sipe , M. Liscidini

The charged Higgs boson is a smoking gun of extensions of the standard model with multiple Higgs-doublets, and has been searched for at various collider experiments. In this paper, we study signature of a light charged Higgs boson produced…

High Energy Physics - Phenomenology · Physics 2022-10-17 YaLu Hu , ChunHao Fu , Jun Gao

This paper presents an overview of the diboson production cross-section measurements and constraints on anomalous triple-gauge boson couplings performed by the ATLAS and CMS collaborations using proton-proton collisions produced at a…

High Energy Physics - Experiment · Physics 2013-05-17 Vincenzo Lombardo

Recent advances in time- and angle-resolved photoemission spectroscopy (tr-ARPES) allow for the probing of multiparticle excited-states in reciprocal space. While neutral two-particle excitations (excitons) have been observed in tr-ARPES,…

Materials Science · Physics 2025-12-23 Jinyuan Wu , Zachary H. Withers , Thomas K. Allison , Diana Y. Qiu

A formalism for hadron production at high \pt in heavy-ion collisions has been developed such that all partons hadronize by recombination. The fragmentation of a hard parton is accounted for by the recombination of shower partons that it…

Nuclear Theory · Physics 2009-11-10 Rudolph C. Hwa , C. B. Yang

The high energy two-body photodisintegration of the deuteron is an ideal reaction for the identification of quark effects in the nuclei. In particular, the study of this reaction in the few GeV region can clarify the transition from the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marco Mirazita

High-harmonic generation (HHG) in the two topological phases of a finite, one-dimensional, periodic structure is investigated using a self-consistent time-dependent density functional theory (TDDFT) approach. For harmonic photon energies…

Optics · Physics 2018-04-26 Dieter Bauer , Kenneth K. Hansen

A measurement is presented of the t t-bar cross section (sigma[ttbar]) in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as originating from…

High Energy Physics - Experiment · Physics 2013-06-21 CMS Collaboration

The centrality dependence of the antiproton per participant ratio is studied in Pb(160 AGeV)+Pb reactions. Antiproton production in collisions of heavy nuclei at the CERN/SPS seems considerably enhanced as compared to conventional hadronic…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Bleicher , M. Belkacem , S. A. Bass , S. Soff , H. Stöcker

The metamaterial is proposed which supports a mixture of three or more normal and backward electromagnetic modes with equal co-directed phase velocities and mutually contra-directed energy fluxes. This enables extraordinary three-wave…

Optics · Physics 2017-11-22 Alexander K. Popov , Sergey A. Myslivets

This paper examines the transverse momentum spectra of baryons in the multi-particle production at modern colliders using Quark-Gluon String Model (QGSM). It discusses 1) the difference in \Lambda^0 hyperon spectra at antiproton-proton vs.…

High Energy Physics - Phenomenology · Physics 2020-06-03 Olga I. Piskounova

We present theoretical studies of above threshold ionization (ATI) produced by spatially inhomogeneous fields. This kind of field appears as a result of the illumination of plasmonic nanostructures and metal nanoparticles with a short laser…

Quantitative spectroscopy of molecular hydrogen has generated substantial demand, leading to the accumulation of diverse elementary-process data encompassing radiative transitions, electron-impact transitions, predissociations, and…

Physical laws are believed to be invariant under the combined transformations of charge, parity and time reversal (CPT symmetry). This implies that an antimatter particle has exactly the same mass and absolute value of charge as its…

A QCD phase transition may reflect in a inhomogeneous decoupling surface of hadrons produced in relativistic heavy-ion collisions. We show that due to the non-linear dependence of the particle densities on the temperature and…

Nuclear Theory · Physics 2009-11-11 A. Dumitru , L. Portugal , D. Zschiesche

We present the evolution of the electronic structure of CrSBr from its antiferromagnetic ground state to the paramagnetic phase above T_N=132 K, in both experiment and theory. Low temperature angle-resolved photoemission spectroscopy…

In this paper, we have theoretically studied the neutral Higgs pair production in Two Higgs Doublet Model (THDM) in the presence of a circularly polarized laser field. The laser-assisted differential partial cross section is derived in the…

High Energy Physics - Phenomenology · Physics 2022-10-19 M. Ouhammou , M. Ouali , S. Taj , R. Benbrik , B. Manaut

Experimental prospects for studying high-energy photon-photon and photon-proton interactions at the CERN Large Hadron Collider (LHC) are discussed. Cross sections are calculated for many electroweak and beyond the Standard Model processes.…

High Energy Physics - Phenomenology · Physics 2009-08-21 J. de Favereau de Jeneret , V. Lemaitre , Y. Liu , S. Ovyn , T. Pierzchala , K. Piotrzkowski , X. Rouby , N. Schul , M. Vander Donckt