Pretraga

Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 313473

Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2

Sparveris, N.F.; Achenbach, P.; Ayerbe Gayoso, C.; Baumann, D.; Bernauer, J.; Bernstein, A.M.; Bohm, R.; Bosnar, Damir; Botto, T.; Christopoulou, A. et al.
Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2 // Physics Letters B, 651 (2007), 102-107 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 313473 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2

Autori
Sparveris, N.F. ; Achenbach, P. ; Ayerbe Gayoso, C. ; Baumann, D. ; Bernauer, J. ; Bernstein, A.M. ; Bohm, R. ; Bosnar, Damir ; Botto, T. ; Christopoulou, A. ; Dale, D. ; Ding, M. ; Distler, M.O. ; Doria, L. ; Friedrich, J. ; Karabarbounis, A. ; Makek, Mihael ; Merkel, H. ; Muller, U. ; Nakagawa, I. ; Neuhausen, R. ; Nungesser, L. ; Papanicolas, C.N. ; Piegsa, A. ; Pochodzalla, J. ; Potokar, M. ; Seimetz, M. ; Sirca, S. ; Stave, S. ; Stiliaris, S. ; Walcher, Th. ; Weis, M.

Izvornik
Physics Letters B (0370-2693) 651 (2007); 102-107

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

Ključne riječi
EMR; CMR; Electro-pion production; Nucleon deformation

Sažetak
We report new precise Click to view the MathML source measurements at the peak of the Δ +(1232) resonance at Click to view the MathML source performed at the Mainz Microtron (MAMI). The new data are sensitive to both the electric (E2) and the Coulomb (C2) quadrupole amplitudes of the γ *N→ Δ transition. They yield precise quadrupole to dipole amplitude ratios: CMR=(− 5.09± 0.28stat+sys± 0.30model)% and EMR=(− 1.96± 0.68stat+sys± 0.41model)% for Click to view the MathML source. The new results are in disagreement with Constituent Quark Model predictions and in qualitative agreement with models that account for mesonic contributions, including recent Lattice calculations. They thus give further credence to the conjecture of deformation in hadronic systems favoring the attribution of the origin of deformation to the dominance of mesonic effects.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-1191005-1021 - QCD i jezgre; primjena nuklearnih metoda:materijali,medicina,okoliš (Bosnar, Damir, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mihael Makek (autor)

Avatar Url Damir Bosnar (autor)

www.sciencedirect.com

Citiraj ovu publikaciju:

Sparveris, N.F.; Achenbach, P.; Ayerbe Gayoso, C.; Baumann, D.; Bernauer, J.; Bernstein, A.M.; Bohm, R.; Bosnar, Damir; Botto, T.; Christopoulou, A. et al.
Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2 // Physics Letters B, 651 (2007), 102-107 (međunarodna recenzija, članak, znanstveni)
Sparveris, N., Achenbach, P., Ayerbe Gayoso, C., Baumann, D., Bernauer, J., Bernstein, A., Bohm, R., Bosnar, D., Botto, T. & Christopoulou, A. (2007) Determination of quadrupole strengths in the gamma*p-->Delta(1232) transition at Q2= 0.20 (GeV/c)2. Physics Letters B, 651, 102-107.
@article{article, author = {Sparveris, N.F. and Achenbach, P. and Ayerbe Gayoso, C. and Baumann, D. and Bernauer, J. and Bernstein, A.M. and Bohm, R. and Bosnar, Damir and Botto, T. and Christopoulou, A. and Dale, D. and Ding, M. and Distler, M.O. and Doria, L. and Friedrich, J. and Karabarbounis, A. and Makek, Mihael and Merkel, H. and Muller, U. and Nakagawa, I. and Neuhausen, R. and Nungesser, L. and Papanicolas, C.N. and Piegsa, A. and Pochodzalla, J. and Potokar, M. and Seimetz, M. and Sirca, S. and Stave, S. and Stiliaris, S. and Walcher, Th. and Weis, M.}, year = {2007}, pages = {102-107}, keywords = {EMR, CMR, Electro-pion production, Nucleon deformation}, journal = {Physics Letters B}, volume = {651}, issn = {0370-2693}, title = {Determination of quadrupole strengths in the gamma\astp-->Delta(1232) transition at Q2= 0.20 (GeV/c)2}, keyword = {EMR, CMR, Electro-pion production, Nucleon deformation} }
@article{article, author = {Sparveris, N.F. and Achenbach, P. and Ayerbe Gayoso, C. and Baumann, D. and Bernauer, J. and Bernstein, A.M. and Bohm, R. and Bosnar, Damir and Botto, T. and Christopoulou, A. and Dale, D. and Ding, M. and Distler, M.O. and Doria, L. and Friedrich, J. and Karabarbounis, A. and Makek, Mihael and Merkel, H. and Muller, U. and Nakagawa, I. and Neuhausen, R. and Nungesser, L. and Papanicolas, C.N. and Piegsa, A. and Pochodzalla, J. and Potokar, M. and Seimetz, M. and Sirca, S. and Stave, S. and Stiliaris, S. and Walcher, Th. and Weis, M.}, year = {2007}, pages = {102-107}, keywords = {EMR, CMR, Electro-pion production, Nucleon deformation}, journal = {Physics Letters B}, volume = {651}, issn = {0370-2693}, title = {Determination of quadrupole strengths in the gamma\astp-->Delta(1232) transition at Q2= 0.20 (GeV/c)2}, keyword = {EMR, CMR, Electro-pion production, Nucleon deformation} }

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

Podijeli:





Contrast
Increase Font
Decrease Font
Dyslexic Font
CROSBI koristi kolačiće (cookies) kako bi poboljšao funkcionalnost stranice.