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Related papers: Modification of $\Delta (1232)$ in the neutrino nu…

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Photo disintegration of the deuteron and photo pionproduction on the deuteron are described in the region of the $\Delta$-resonance. The two reactions are unitarily coupled. A novel definition of electromagnetic exchange currents in the…

Nuclear Theory · Physics 2007-05-23 K. A. Bugaev , U. Oelfke , P. U. Sauer

We study the reaction of pion photoproduction on the nucleon in the framework of chiral perturbation theory with explicit $\Delta(1232)$ degrees of freedom. In the covariant approach, we give results up to order $\epsilon^3$ in the small…

Nuclear Theory · Physics 2021-08-04 N. Rijneveen , A. M. Gasparyan , H. Krebs , E. Epelbaum

Since the discovery that the ratio of inclusive charged lepton (per-nucleon) cross sections from a nucleus A to the deuteron is not unity - even in deep inelastic scattering kinematics - a great deal of experimental and theoretical effort…

Nuclear Experiment · Physics 2014-08-19 Simona Malace , David Gaskell , Douglas W. Higinbotham , Ian Cloet

The production of backward pions in lepton-nucleus collisions is analyzed. We show that a large yield of high momentum backward pions can be explained by the Regge asymptotic of the distribution of nucleons carrying a large momentum…

Nuclear Theory · Physics 2014-11-18 O. Benhar , S. Fantoni , G. I. Lykasov

General analytical expressions for the observables in $dA$-scattering reaction have been derived in the diffraction approximation. The resulting formulas describe the cross section and polarization states of the deuteron when it scattering…

Nuclear Theory · Physics 2024-02-29 Valery I. Kovalchuk

We analyse neutrino-induced reactions in the small $Q^2$ region and for energies covering the production and decay of the delta resonance. One of our results is the agreement with the MiniBooNE data for $1\pi^+$ and $1\pi^0$ final states.…

High Energy Physics - Phenomenology · Physics 2013-03-05 E. A. Paschos , Dario Schalla

The consequences of a recently introduced irreducible pionic effect in low energy nucleon-deuteron scattering are analyzed. Differential cross-sections, nucleon (vector) and deuteron (vector and tensor) analyzing powers, and four different…

Nuclear Theory · Physics 2007-05-23 L. Canton , W. Schadow , J. Haidenbauer

We study one pion production in both charged and neutral current neutrino nucleus scattering for neutrino energies below 2 GeV. We use a theoretical model for one pion production at the nucleon level that we correct for medium effects. The…

High Energy Physics - Phenomenology · Physics 2013-09-11 E. Hernández , J. Nieves , M. J. Vicente Vacas

We assess the impact of two-particle--two-hole excitations on the semi-inclusive electron scattering process (e,e'p) using a fully relativistic nuclear model calculation that precisely incorporates antisymmetrization. The calculation…

Nuclear Theory · Physics 2024-06-14 Valerio Belocchi , Maria Benedetta Barbaro , Arturo De Pace , Marco Martini

The existing experimental data on the d(n,p)nn and d(p,n)pp cross sections in the forward direction are reviewed in terms of the Dean sum rule. It is shown that the measurement of the ratio of the charge exchange on the deuteron to that on…

Nuclear Experiment · Physics 2008-11-26 Francois Lehar , Colin Wilkin

Pion-nucleon elastic scattering in the dominant $P_{33}$ channel is examined in the model in which the interaction is of the form $\pi + N\leftrightarrow N, \Delta(1232)$. New expressions are found for the elastic pion-nucleon scattering…

Nuclear Theory · Physics 2014-11-18 D. J. Ernst

The MINER$\nu$A experiment investigates neutrino interactions with nucleons needed for an understanding of electroweak interactions of hadrons. Since nuclear targets are being used many-body effects may affect the extracted cross sections…

Nuclear Theory · Physics 2014-06-13 U. Mosel , O. Lalakulich , K. Gallmeister

Nuclear processes involving momenta much below the mass of the pion may be described by an effective field theory in which the pions do not appear as explicit degrees of freedom. The effects of the pion and all other virtual hadrons are…

Nuclear Theory · Physics 2008-11-26 Jiunn-Wei Chen , Gautam Rupak , Martin J. Savage

We show that the neutron and proton transition densities predicted by recent quantum Monte Carlo calculations for A=6,7 nuclei are consistent with pion scattering from 6Li and 7Li at energies near the Delta resonance. This has provided a…

Nuclear Theory · Physics 2008-11-26 T. -S. H. Lee , R. B. Wiringa

The quasi-elastic contribution of the nuclear inclusive electron scattering model developed in A. Gil, J. Nieves, and E. Oset: Nucl. Phys. A 627 (1997) 543; is extended to the study of electroweak Charged Current (CC) induced nuclear…

High Energy Physics - Phenomenology · Physics 2009-11-11 M. Valverde , J. Nieves , J. E. Amaro

In this work, we have studied (anti)neutrino induced charged current quasielastic scattering from some nuclear targets in the energy region of $E_\nu < 1~GeV$. Our aim is to confront electron and muon production cross sections relevant for…

Nuclear Theory · Physics 2015-12-09 F. Akbar , M. Rafi Alam , M. Sajjad Athar , S. Chauhan , S. K. Singh , F. Zaidi

In order to investigate the nuclear symmetry energy at high density, we study the pion production in central collisions of neutron-rich nuclei ${}^{132}\mathrm{Sn}+{}^{124}\mathrm{Sn}$ at 300 MeV/nucleon using a new approach by combining…

Nuclear Theory · Physics 2018-04-06 Natsumi Ikeno , Akira Ono , Yasushi Nara , Akira Ohnishi

We have carried out a calculation of the inclusive electron scattering cross section off oxygen in the kinematical region corresponding to beam energies between 700 and 1200 MeV, where quasielastic scattering and single pion production are…

High Energy Physics - Phenomenology · Physics 2009-04-22 Hiroki Nakamura , Tadaaki Nasu , Makoto Sakuda , Omar Benhar

Using coupled-cluster theory and interactions from chiral effective field theory, we compute overlap functions for transfer and scattering of low-energy protons on the target nucleus 40-Ca. Effects of three-nucleon forces are included…

Nuclear Theory · Physics 2012-08-14 G. Hagen , N. Michel

The dynamical model developed in [Phys. Rev. C 54, 2660 (1996)] has been applied to investigate the pion electroproduction reactions on the nucleon. It is found that the model can describe to a very large extent the recent data of p(e,e'…

Nuclear Theory · Physics 2009-11-06 T. Sato , T. -S. H. Lee