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Pregled bibliografske jedinice broj: 119706

Measurement of the beam helicity asymmetry in the p(e_pol), e' p)pi0 reaction at the energy of delta(1232) resonance


Bartsch, P.; Baumann, D.; Bermuth, J.; Bohm, R.; Bohinc, K.; Bosnar, Damir; Ding, M.; Distler, M.; Drechsel, D.; Elsner, D. et al.
Measurement of the beam helicity asymmetry in the p(e_pol), e' p)pi0 reaction at the energy of delta(1232) resonance // Physical review letters, 88 (2002), 14; 142001 (1-4) (međunarodna recenzija, članak, znanstveni)


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Naslov
Measurement of the beam helicity asymmetry in the p(e_pol), e' p)pi0 reaction at the energy of delta(1232) resonance

Autori
Bartsch, P. ; Baumann, D. ; Bermuth, J. ; Bohm, R. ; Bohinc, K. ; Bosnar, Damir ; Ding, M. ; Distler, M. ; Drechsel, D. ; Elsner, D. ; Ewald, I. ; Friedrich, J. ; Friedrich, J.M. ; Grozinger, S. ; Hedicke, S. ; Jennewein, P. ; Kahrau, M. ; Kamalov, S.S. ; Klein, F. ; Krygier, K.W. ; Liesenfeld, A. ; Merkel, H. ; Merle, P. ; Muller, U. ; Neuhausen, R. ; Pospischil, T. ; Potokar, M. ; Rosner, G. ; Schmieden, H. ; Seimetz, M. ; Sule, A. ; Tiator, L. ; Wagner, A. ; Walcher, T. ; Weis M.

Izvornik
Physical review letters (0031-9007) 88 (2002), 14; 142001 (1-4)

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Beam-helicity asymmetry; Delta particle; hadron models

Sažetak
In a p(e_pol, e'p)pi_0 out-of-plane coincidence experiment at the 3-spectrometer setup of the Mainz Microtron MAMI, the beam-helicity asymmetry has been precisely measured around the energy of the Delta(1232) resonance and Q^2 = 0.2 (GeV/c)^2. The results are in disagreement with three up-to-date model calculations. This is interpreted as lack of understanding of the non-resonant background, which in dynamical models is related to the pion cloud.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
0119259

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Martina Ećimović-Merle (autor)

Avatar Url Damir Bosnar (autor)


Citiraj ovu publikaciju

Bartsch, P.; Baumann, D.; Bermuth, J.; Bohm, R.; Bohinc, K.; Bosnar, Damir; Ding, M.; Distler, M.; Drechsel, D.; Elsner, D. et al.
Measurement of the beam helicity asymmetry in the p(e_pol), e' p)pi0 reaction at the energy of delta(1232) resonance // Physical review letters, 88 (2002), 14; 142001 (1-4) (međunarodna recenzija, članak, znanstveni)
Bartsch, P., Baumann, D., Bermuth, J., Bohm, R., Bohinc, K., Bosnar, D., Ding, M., Distler, M., Drechsel, D. & Elsner, D. (2002) Measurement of the beam helicity asymmetry in the p(e_pol), e' p)pi0 reaction at the energy of delta(1232) resonance. Physical review letters, 88 (14), 142001 (1-4).
@article{article, year = {2002}, pages = {142001 (1-4)}, keywords = {Beam-helicity asymmetry, Delta particle, hadron models}, journal = {Physical review letters}, volume = {88}, number = {14}, issn = {0031-9007}, title = {Measurement of the beam helicity asymmetry in the p(e\_pol), e' p)pi0 reaction at the energy of delta(1232) resonance}, keyword = {Beam-helicity asymmetry, Delta particle, hadron models} }
@article{article, year = {2002}, pages = {142001 (1-4)}, keywords = {Beam-helicity asymmetry, Delta particle, hadron models}, journal = {Physical review letters}, volume = {88}, number = {14}, issn = {0031-9007}, title = {Measurement of the beam helicity asymmetry in the p(e\_pol), e' p)pi0 reaction at the energy of delta(1232) resonance}, keyword = {Beam-helicity asymmetry, Delta particle, hadron models} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE





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