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Related papers: Coulomb deexcitation of pionic hydrogen within clo…

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We present a quantum mechanical study of the diatomic hydrogen $H(^{2}S)$ and oxygen $O(^{3}P)$ collision and energy transfer for its four molecular symmetry $(X^{2}\Pi, ^{2}\Sigma^{-}, ^{4}\Pi, ^{4}\Sigma^{-})$, which is important for the…

Chemical Physics · Physics 2007-05-23 L. Wei , M. J. Jamieson , A. Dalgarno

The subtle differences between positive and negative pion spectra can used be used to study the nature of the nuclear interaction region in heavy-ion collisions. Several large acceptance heavy ion experiments at facilities ranging from SIS,…

Nuclear Experiment · Physics 2014-08-07 D. Cebra , S. G. Brovko , C. E. Flores , B. A. Haag , J. L. Klay

In the framework of Glauber-Sitenko model we calculate contribution of Coulomb interaction in cross-section of A(d,p) reaction at high energy and zero angle. It is demonstrated that such effect significantly increases the differential cross…

Nuclear Theory · Physics 2007-12-10 A. P. Kobushkin , Ya. D. Krivenko-Emetov

In this paper we apply a well-tested approximation of electron Coulomb distortion effects to the exclusive reaction (e,e'p) in the quasielastic region. We compare the approximate treatment of Coulomb distortion effects to the exact…

Nuclear Theory · Physics 2008-11-26 K. S. Kim , L. E. Wright

The size of $\pi^+\pi^-$ atom in the low lying states is considerably smaller than the radius of atomic screening. Due to that we can neglect this screening calculating the contribution of multi-photon exchanges. We obtain the analytic…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. Yu. Ivanov , L. Szymanowski

We calculate the cross sections for the $p(p,n\pi^{+})p$ and $p(p,p\pi^{0})p$ reactions for proton beam energies near threshold in a covariant one-boson-exchange model, which incorporates the exchange of $\pi$, $\rho$, $\sigma$ and $\omega$…

Nuclear Theory · Physics 2009-10-30 R. Shyam , U. Mosel

We calculate the pi-/pi+ ratio for Pb+Pb at CERN/SPS energies and for Au+Au at BNL/AGS energies using a (3+1) dimensional hydrodynamical model. Without consideration of Coulomb effect an enhancement of this ratio at low mt is found…

High Energy Physics - Phenomenology · Physics 2009-10-28 N. Arbex , U. Ornik , M. Pluemer , B. R. Schlei , R. M. Weiner

We calculate the Coulomb dissociation of 9Li on Pb and U targets at 28.5 MeV/A beam energy within a finite range distorted wave Born approximation formalism of the breakup reactions. Invoking the principle of detailed balance, these cross…

Nuclear Theory · Physics 2008-11-26 P. Banerjee , R. Chatterjee , R. Shyam

The differential cross section for the $^{1}$H$(d,pp)n$ breakup reaction at deuteron beam energy of 380 MeV has been determined with high precision for 189 angular configurations of outgoing protons in the region of forward laboratory…

Nuclear and Coulomb breakup of halo nuclei have been treated often as incoherent processes and structure information have been extracted from their study. The aim of this paper is to clarify whether interference effects and Coulomb-nuclear…

Nuclear Theory · Physics 2009-11-07 J. Margueron , A. Bonaccorso , D. M. Brink

We report the first experimental measurements of the nine 1-fold differential cross sections for the $\gamma p \to \pi^+\pi^-p$ reaction, obtained with the CLAS detector at Jefferson Laboratory. The measurements cover the invariant mass…

Nuclear Experiment · Physics 2018-11-08 CLAS Collaboration , E. Golovatch , V. D. Burkert , D. S. Carman , R. W. Gothe , K. Hicks , B. S. Ishkhanov , V. I. Mokeev , E. Pasyuk , S. Adhikari , Z. Akbar , M. J. Amaryan , H. Avakian , J. Ball , L. Barion , M. Bashkanov , M. Battaglieri , I. Bedlinskiy , A. S. Biselli , S. Boiarinov , W. J. Briscoe , F. Cao , A. Celentano , P. Chatagnon , T. Chetry , G. Ciullo , L. Clark , B. A. Clary , P. L. Cole , M. Contalbrigo , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , E. De Sanctis , M. Defurne , A. Deur , S. Diehl , C. Djalali , M. Dugger , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , L. El Fassi , L. Elouadrhiri , P. Eugenio , G. Fedotov , R. Fersch , A. Filippi , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , D. I. Glazier , K. A. Griffioen , M. Guidal , L. Guo , K. Hafidi , H. Hakobyan , N. Harrison , M. Hattawy , D. Heddle , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , D. Jenkins , H. S. Jo , S. Johnston , K. Joo , M. L. Kabir , D. Keller , G. Khachatryan , M. Khachatryan , M. Khandaker , W. Kim , A. Klein , F. J. Klein , V. Kubarovsky , L. Lanza , P. Lenisa , K. Livingston , I. J. D. MacGregor , D. Marchand , N. Markov , B. McKinnon , C. A. Meyer , R. A. Montgomery , A. Movsisyan , C. Munoz Camacho , P. Nadel-Turonski , S. Niccolai , G. Niculescu , M. Osipenko , A. I. Ostrovidov , M. Paolone , R. Paremuzyan , K. Park , O. Pogorelko , J. W. Price , Y. Prok , D. Protopopescu , M. Ripani , D. Riser , A. Rizzo , G. Rosner , F. Sabatié , C. Salgado , R. A. Schumacher , Y. G. Sharabian , Iu. Skorodumina , G. D. Smith , D. I. Sober , D. Sokhan , N. Sparveris , I. I. Strakovsky , S. Strauch , M. Taiuti , J. A. Tan , N. Tyler , M. Ungaro , H. Voskanyan , E. Voutier , R. Wang , X. Wei , M. H. Wood , N. Zachariou , J. Zhang , Z. W. Zhao

In this paper we use sets of de Broglie-Bohm trajectories to describe the quantum correlation effects which take place between the electrons in helium atom due to exchange and Coulomb interactions. A short-range screening of the Coulomb…

Atomic Physics · Physics 2025-02-07 Ivan P. Christov

The applicability of Coulomb dissociation reactions to determine the cross section for the inverse neutron capture reaction was explored using the reaction 8Li(gamma,n)7Li. A 69.5 MeV/nucleon 8Li beam was incident on a Pb target, and the…

We have investigated the effect of the long-range Coulomb interaction on the one-particle excitation spectrum of n-type Germanium, using tunneling spectroscopy on mechanically controllable break junctions. The tunnel conductance was…

Strongly Correlated Electrons · Physics 2009-10-31 B. Sandow , K. Gloos , R. Rentzsch , A. N. Ionov , W. Schirmacher

The recently reported data on the yield ratio $\pi^-/\pi^+$ in central rapidity region of heavy-ion collisions are analyzed by theoretical formula which accounts for Coulomb interaction between central charged fragment (CCF) consisting of…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Osada , S. Sano , M. Biyajima , G. Wilk

The scattering processes of exotic atoms in excited states from hydrogen such as elastic scattering, Stark transitions and Coulomb de-excitation are studied within a close coupling approach. The vacuum polarization and the strong…

Nuclear Theory · Physics 2007-12-20 V. P. Popov , V. N. Pomerantsev

Ab initio study of the density-dependent population and lifetime of the long-lived $(\mu p)_{2s}$ and the yield of $(\mu p)_{1s}$ atoms with kinetic energy 0.9 keV have been performed for the first time. The direct Coulomb $2s\to 1s$…

Nuclear Theory · Physics 2008-09-05 V. P. Popov , V. N. Pomerantsev

The Dirac equation for the Coulomb problem is restated by incorporating a nonlinear effective interaction into the Dirac Hamiltonian: one keeps the $1/r$ dependence for the Coulomb field, but the coupling constant is modified by a factor…

Quantum Physics · Physics 2007-05-23 S. Bruce , J. Diaz-Valdes

The spectrum of virtual photons for nuclei of Pb-208 at big hadron collider energy is analysed. Cross-sections of inelastic Coulomb collisions accompanied with evaporation of one to four neutrons by one of the partners are calculated. By…

Nuclear Theory · Physics 2012-09-05 Feodor F. Karpeshin

Large ensembles of points with Coulomb interactions arise in various settings of condensed matter physics, classical and quantum mechanics, statistical mechanics, random matrices and even approximation theory, and give rise to a variety of…

Mathematical Physics · Physics 2018-07-27 Sylvia Serfaty