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Related papers: The analysis of reactions $\pi N\to two mesons + N…

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The novel point of this analysis is a direct use of reggeon exchange technique for the description of the reactions $\pi N\to two mesons + N$ at large energies of the initial pion. This approach allows us to describe simultaneously…

High Energy Physics - Phenomenology · Physics 2009-03-03 V. V. Anisovich , A. V. Sarantsev

The reaction $np \rightarrow np \pi^+ \pi^-$ was studied at the various momenta of incident neutrons. It was shown that the characteristics of the reaction at the momenta above 3 GeV/c could be described by the model of reggeized $\pi$…

Nuclear Theory · Physics 2012-03-16 A. P. Jerusalimov

A resonance model for two-pion production in the pion-nucleon reaction is developed that includes information obtained in the analysis of pion-nucleon scattering in a meson-exchange model. The baryonic resonances Delta(1232), N*(1440),…

Nuclear Theory · Physics 2007-05-23 S. Schneider , S. Krewald , Ulf-G. Meißner

The reaction $np \rightarrow np \pi^+ \pi^-$ was studied at the various momenta of incident neutrons. It was shown that the characteristics of the reaction at the momenta above 3 GeV/c could be described by the model of reggeized $\pi$…

High Energy Physics - Experiment · Physics 2011-02-09 A. P. Jerusalimov , Yu. A. Troyan , A. Yu. Troyan , A. V. Belyaev , E. B. Plekhanov

We present a fit based on Regge theory of two-to-two reactions at high energies particulary focused on leading non-strange positive naturality exchanges. Factorization of the residues is assumed between beam and target vertices. This study…

High Energy Physics - Phenomenology · Physics 2013-11-26 Vincent Mathieu

We investigate the reactions $\pi N \to a_0 N$ and $p p \to d a_0^+$ near threshold and at medium energies. An effective Lagragian approach and the Regge pole model are applied to analyze different contributions to the cross section of the…

Nuclear Theory · Physics 2009-11-06 V. Yu. Grishina , L. A. Kondratyuk , E. L. Bratkovskaya , M. Buescher , W. Cassing

We investigate the cross section for the reaction $NN \to NNa_0$ near threshold and at medium energies. An effective Lagrangian approach with one-pion exchange is applied to analyze different contributions to the cross section for different…

Nuclear Theory · Physics 2008-11-26 E. L. Bratkovskaya , V. Yu. Grishina , L. A. Kondratyuk , M. Buescher , W. Cassing

A Regge approach to the reaction processes $\gamma p\to\pi^-\Delta^{++}$ and $\gamma p\to\pi^+\Delta^0$ is presented for the description of existing data up to $E_\gamma= 16$ GeV. The model consists of the $t$-channel…

High Energy Physics - Phenomenology · Physics 2017-07-20 Byung-Geel Yu , Kook-Jin Kong

Results of a combined analysis are presented for the production of $\omega$ and $\phi$ mesons in $\pi N$ reactions in the near-threshold region using throughoutly a conventional ''non-strange'' dynamics based on such processes which are…

Nuclear Theory · Physics 2008-11-26 A. I. Titov , B. Kampfer , B. L. Reznik

The production of mesons in nucleon-nucleon collisions is reviewed from the viewpoint of the meson-exchange picture. In the first part various possible production mechanisms and their relative importance are discussed. In addition, general…

Nuclear Theory · Physics 2010-12-13 C. Hanhart

The two-step model with pi-, rho- and omega- exchanges taken into account is applied to investigate the reactions pn -> d eta and pn -> d eta-prime. The existing experimental data on the reaction pn -> d eta are analysed and predictions for…

Nuclear Theory · Physics 2009-10-31 V. Yu. Grishina , L. A. Kondratyuk , M. Buescher , C. Hanhart , J. Haidenbauer , J. Speth

This report describes the transitions pion -> meson_1 + meson_2 and also pion -> multi-pion for high energy pions interacting with target nuclei (Z,A). The physics interests are: A) Nuclear inelastic coherent diffraction cross sections for…

Nuclear Theory · Physics 2016-09-08 Murray A. Moinester

An effective Hamiltonian consisting of bare $\Delta \leftrightarrow\pi N$, $\gamma N$ vertex interactions and energy-independent meson-exchange $\pi N \leftrightarrow \pi N, \gamma N$ transition operators is derived by applying a unitary…

Nuclear Theory · Physics 2019-08-17 T. Sato , T-. S. H. Lee

The reactions p+n-->d+omega and p+n-->d+phi are studied within a relativistic meson-exchange model of hadronic interactions. Predictions for the total cross sections and for the angular distributions of the vector mesons are presented. The…

Nuclear Theory · Physics 2009-11-06 K. Nakayama , J. Haidenbauer , J. Speth

We calculate the elastic and inelastic $\omega N\to \omega N, \to \pi N, \to \rho N, \to \rho \pi N, \to \pi \pi N, \to \sigma N$ reactions within a boson exchange approximation where the $\omega\rho\pi$ coupling constant and form factor…

Nuclear Theory · Physics 2009-10-31 G. I. Lykasov , W. Cassing , A. Sibirtsev , M. V. Rzjanin

A double-scattering reaction $\pi^+ + d\to p + p + \eta$, where an $\eta$ meson is rescattered, may provide new information on the $\eta N\to \eta N$ scattering. An idea to measure this reaction is proposed. Moreover, experimental search…

Nuclear Experiment · Physics 2017-08-23 H. Fujioka , K. Itahashi

We consider near-threshold $a_0(980)$-meson production in $\pi N$ and $NN$ collisions. An effective Lagrangian approach with one-pion exchange is applied to analyze different contributions to the cross section for different isospin…

Nuclear Theory · Physics 2009-11-07 L. A. Kondratyuk , E. L. Bratkovskaya , V. Yu. Grishina , M. Buescher , W. Cassing , H. Stroeher

In this work we investigate the reaction $\gamma p\to\pi^-\Delta^{++}$ in the Reggeized model for $\pi(138)+\rho(775)+a_2(1320)$ exchanges in the $t$-channel. For a convergence of the reaction cross section at high energies the minimal…

High Energy Physics - Phenomenology · Physics 2018-08-01 Byung-Geel Yu , Kook-Jin Kong

Using the Argonne National Laboratory-The University of Osaka (ANL-Osaka) DCC model of meson-nucleon reactions, we extend the study of Phys. Rev. C 79, 025206 (2009) and Phys. Rev. C 88, 045203 (2013) to predict the cross sections of the…

High Energy Physics - Phenomenology · Physics 2026-01-27 H. Kamano , T. -S. H. Lee

Problem of description of total cross sections of $\bar pp$- and $pp$-interactions is considered within the framework of the Regge theory. Parameters of the pomeron exchange, ordinary meson exchange and exotic meson exchange with hidden…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Uzhinsky , A. S. Galoyan
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