Results 21 to 30 of about 4,570 (100)

Semi-inclusive charged-pion electroproduction off protons and deuterons: Cross sections, ratios, and access to the quark-parton model at low energies [PDF]

, 2012
A large set of cross sections for semi-inclusive electroproduction of charged pions (π^±) from both proton and deuteron targets was measured. The data are in the deep-inelastic scattering region with invariant mass squared W^2>4 GeV^2 (up to ≈7 GeV^2 ...
Asaturyan, R., Frolov, V. V.
core   +1 more source

The gamma-N -> Delta transition in chiral effective-field theory

, 2006
We describe the pion electroproduction processes in the $\Delta$(1232)-resonance region within the framework of chiral effective-field theory. By studying the observables of pion electroproduction in a next-to-leading order calculation we are able to ...
Pascalutsa, Vladimir, Vanderhaeghen, Marc   +1 more
core   +1 more source

Partial-Wave Analysis of Single-Pion Production Reactions

, 2006
We present an overview of our efforts to analyze pion-nucleon elastic scattering data, along with data from related photo- and electroproduction reactions, in order to study the baryon spectrum. We then focus on the Delta(1232) resonance.
Arndt, R. A., Briscoe, W. J., Strakovsky, I. I., Workman, R. L.   +3 more
core   +2 more sources

Pion electroproduction from 6Li

Physics Letters B, 1977
Abstract The pion electroproduction cross section from 6 Li is calculated assuming the 6 He nucleus is detected. The wave-functions used in this calculation are those which gave the best agreement with the 6 Li(γ,π + ) 6 He data. The electro-production experiment will provide a useful check of these wave functions.
E.L. Tomusiak, E.T. Dressler
openaire   +1 more source

Recent developments in the dynamical and unitary isobar models for pion electromagnetic production [PDF]

, 2001
gamma N->Delta transition form factors and threshold pi^0 photo- and electroproduction are studied with the new version of MAID and a dynamical model. By re-analyzing the recent Jlab data on p(e,e'p) pi^0 at Q^2 = 2.8 and 4.0 (GeV/c)^2, we find that the ...
D. Drechsel, Guan Yeu Chen, L. Tiator, S. S. Kamalov, Shin Nan, Yang   +5 more
core   +3 more sources

Pion electroproduction and scaling

Physics Letters B, 1972
Abstract The properties of the differential cross section for pion electroproduction in the sca;ing limit are predicted using PCAC and the light cone approach. Pion production of muon pairs is also considered.
N. Dombey, R.T. Shann
openaire   +1 more source

An attempt to understand exclusive pi+ electroproduction

, 2009
Hard exclusive pi+ electroproduction is investigated within the handbag approach. The prominent role of the pion-pole contribution is demonstrated. It is also shown that the experimental data require a twist-3 effect which ensues from the helicity-flip ...
A. Airapetian, A. Airapetian, A. Airapetian, A. Boyarski, A.P. Bakulev, A.V. Radyushkin, C. Amsler, D. Mueller, D.Y. Ivanov, D.Y. Ivanov, E. Leader, E. Leader, H.P. Blok, H.W. Huang, H.W. Huang, I.V. Musatov, J. Blümlein, J. Botts, J.C. Collins, J.P. Santoro, K. Schilling, L. Mankiewicz, L. Mankiewicz, L.L. Frankfurt, M. Anselmino, M. Beneke, M. Diehl, M. Diehl, M. Diehl, M. Diehl, M. Diehl, M. Diehl, M. Penttinen, M. Rahnama, M. Vanderhaeghen, M. Vanderhaeghen, P. Ball, P. Hoodbhoy, P. Kroll, P. Kroll, P. Pobylitsa, P.D.B. Collins, P.K. Williams, R. Enberg, R. Jakob, R. Worden, R.J.N. Phillips, S. Ahmad, S. V. Goloskokov, S.A. Morrow, S.V. Goloskokov, S.V. Goloskokov, S.V. Goloskokov, S.V. Goloskokov, V.M. Braun, V.Y. Alexakhin   +55 more
core   +1 more source

Exclusive high-$Q^2$ electroproduction: light-cone wave functions and electromagnetic form factors of mesons, [PDF]

, 1995
We apply the light-cone technique to electroproduction reaction $ep\to e\pi^+n$ long considered as a means of measuring the electromagnetic form factor of the pion.
Anisovich, Anisovich, Arnold, Bebek, Bebek, Becchi, Becchi, Berends, Blok, Boreskov, Brown, Burq, Burq, Carlson, Carparo, Chernyak, Dokshitzer, Dolinsky, Farrar, Frazer, Glauber, Gribov, Güttner, Holzenkamp, Huston, Isgur, J. Speth, Lepage, Llewellyn Smith, Machleidt, Nikolaev, Nikolaev, Schreiber, Stoler, Ter-Martirosyan, Terent'ev, V.R. Zoller, Vainshtein, Zoller, Zoller   +39 more
core   +2 more sources

Separated Response Function Ratios in Exclusive, Forward pi^{+/-} Electroproduction

, 2014
The study of exclusive $\pi^{\pm}$ electroproduction on the nucleon, including separation of the various structure functions, is of interest for a number of reasons.
Abbott, D., Aniol, K., Anklin, H., Armstrong, C., Arrington, J., Assamagan, K., Avery, S., Baker, O. K., Barrett, B., Beise, E. J., Blok, H. P., Bochna, C., Boeglin, W., Brash, E. J., Breuer, H., Butuceanu, C., Chang, C. C., Chant, N., Christy, M. E., Collaboration, The Jefferson Lab Fpi, Dunne, J., Eden, T., Ent, R., Fenker, H., Gaskell, D., Gibson, E. F., Gilman, R., Gustafsson, K., Hinton, W., Holt, R. J., Horn, T., Huber, G. M., Jackson, H., Jin, S., Jones, M. K., Keppel, C. E., Kim, P. H., Kim, W., King, P. M., Klein, A., Koltenuk, D., Kovaltchouk, V., Liang, M., Liu, J., Lolos, G. J., Lung, A., Mack, D. J., Margaziotis, D. J., Markowitz, P., Matsumura, A., McKee, D., Meekins, D., Mitchell, J., Miyoshi, T., Mkrtchyan, H., Mueller, B., Niculescu, G., Niculescu, I., Okayasu, Y., Pentchev, L., Perdrisat, C., Pitz, D., Potterveld, D., Punjabi, V., Qin, L. M., Reimer, P. E., Reinhold, J., Roche, J., Roos, P. G., Sarty, A., Shin, I. K., Smith, G. R., Stepanyan, S., Tadevosyan, V., Tang, L. G., Tvaskis, V., van der Meer, R. L. J., Van Westrum, D., Vansyoc, K., Vidakovic, S., Volmer, J., Vulcan, W., Warren, G., Wood, S. A., Xu, C., Yan, C., Zhao, W. -X., Zheng, X., Zihlmann, B.   +88 more
core   +2 more sources

Comment about pion electro-production and the axial form factors [PDF]

, 2000
The claim by Haberzettl (Phys.Rev.Lett.85 (2000) 3576) that the axial form factor of the nucleon cannot be accessed through threshold pion electroproduction is ...
H. Haberzettl, P. A. M. Guichon, S. Choi, S. L. Adler   +3 more
core   +2 more sources