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Pregled bibliografske jedinice broj: 614732

Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region

Zehr, F.; Krusche, B.; Aguar, P.; Ahrens, Annand, J. R. M.; Arends, H. J.; Beck, R.; Bekrenev, V.; Boillat, B.; Braghieri, A.; Branford, D. et al.
Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region // European physical journal A : hadrons and nuclei, 48 (2012), 7; 98-1 doi:10.1140/epja/i2012-12098-1 (međunarodna recenzija, članak, znanstveni)

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Naslov
Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region

Autori
Zehr, F. ; Krusche, B. ; Aguar, P. ; Ahrens, Annand, J. R. M. ; Arends, H. J. ; Beck, R. ; Bekrenev, V. ; Boillat, B. ; Braghieri, A. ; Branford, D. ; Briscoe, W.J. ; Brudvik, J. ; Cherepnya, S. ; Codling, R. F. B. ; Downie, E. J. ; Drexler, P. ; Glazier, D. I. ; Fil'kov, L. V. ; Gregor, R. ; Heid, E. ; Hornidge, D. ; Jaegle, I. ; Jahn, O. ; Kashevarov, V. L. ; Knežević, Andrea ; Kondratiev, R. ; Korolija, Milorad ; Kotulla, M. ; Krambrich, D. ; Kulbardis, A. ; Lang, M. ; Lisin, V. ; Livingston, K. ; Lugert, S. ; MacGregor, I. J. D. ; Manley, D. M. ; Maghrbi, Y. ; Martinez, M. ; McGeorge, J. C. ; Mekterović, Darko ; Metag, V. ; Nefkens, B. M. K. ; Nikolaev, A. ; Ostrick, M. ; Pedroni, P. ; Pheron, F. ; Polonski, A. ; Prakhov, S. ; Price, J. W. ; Rosner, G. ; Rost, M. ; Rostomyan, T. ; Schumann, S. ; Sober, D. ; Starostin, A. ; Supek, Ivan ; Tarbert, C. M. ; Thomas, A. ; Unverzagt, M. ; Walcher, Th. ; Watts, D. P.

Izvornik
European physical journal A : hadrons and nuclei (1434-6001) 48 (2012), 7; 98-1

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

Ključne riječi
pi photoproduction; channel cross section; mass spectrum; polarized beam; Crystal Ball

Sažetak
Precise total cross-sections and invariant-mass distributions have been measured for photoproduction of pion pairs off the proton producing pi0 p0 and n?+?0 final states from the threshold region up to 800 MeV incident photon energy. Additionally, beam helicity asymmetries have been measured in the second resonance region (550 MeV - 820 MeV). The experiment was performed at the tagged photon beam of the Mainz MAMI accelerator with the Crystal Ball and TAPS detectors combined to give an almost 4? solid-angle electromagnetic calorimeter. The results are much more precise than any previous measurements and confirm the chiral perturbation theory predictions for the threshold behavior of these reactions. In the second resonance region, the invariant-mass distributions of meson-meson and meson-nucleon pairs are in reasonable agreement with model predictions, but none of the models reproduce the asymmetries for the mixed-charge channel.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
E-Print: arXiv:1207.2361 [nucl-ex]



POVEZANOST RADA

Projekti:
098-0982887-2888 - Hadronska fizika i QCD (Supek, Ivan, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Andrea Knežević (autor)

Avatar Url Ivan Supek (autor)

Avatar Url Milorad Korolija (autor)

Avatar Url Darko Mekterović (autor)

Poveznice na cjeloviti tekst rada:

doi link.springer.com

Citiraj ovu publikaciju:

Zehr, F.; Krusche, B.; Aguar, P.; Ahrens, Annand, J. R. M.; Arends, H. J.; Beck, R.; Bekrenev, V.; Boillat, B.; Braghieri, A.; Branford, D. et al.
Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region // European physical journal A : hadrons and nuclei, 48 (2012), 7; 98-1 doi:10.1140/epja/i2012-12098-1 (međunarodna recenzija, članak, znanstveni)
Zehr, F., Krusche, B., Aguar, P., Ahrens, Annand, J. R. M., Arends, H., Beck, R., Bekrenev, V., Boillat, B., Braghieri, A. & Branford, D. (2012) Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region. European physical journal A : hadrons and nuclei, 48 (7), 98-1 doi:10.1140/epja/i2012-12098-1.
@article{article, author = {Zehr, F. and Krusche, B. and Aguar, P. and Arends, H. J. and Beck, R. and Bekrenev, V. and Boillat, B. and Braghieri, A. and Branford, D. and Briscoe, W.J. and Brudvik, J. and Cherepnya, S. and Codling, R. F. B. and Downie, E. J. and Drexler, P. and Glazier, D. I. and Fil'kov, L. V. and Gregor, R. and Heid, E. and Hornidge, D. and Jaegle, I. and Jahn, O. and Kashevarov, V. L. and Kne\v{z}evi\'{c}, Andrea and Kondratiev, R. and Korolija, Milorad and Kotulla, M. and Krambrich, D. and Kulbardis, A. and Lang, M. and Lisin, V. and Livingston, K. and Lugert, S. and MacGregor, I. J. D. and Manley, D. M. and Maghrbi, Y. and Martinez, M. and McGeorge, J. C. and Mekterovi\'{c}, Darko and Metag, V. and Nefkens, B. M. K. and Nikolaev, A. and Ostrick, M. and Pedroni, P. and Pheron, F. and Polonski, A. and Prakhov, S. and Price, J. W. and Rosner, G. and Rost, M. and Rostomyan, T. and Schumann, S. and Sober, D. and Starostin, A. and Supek, Ivan and Tarbert, C. M. and Thomas, A. and Unverzagt, M. and Walcher, Th. and Watts, D. P.}, year = {2012}, pages = {98-1-98-19}, DOI = {10.1140/epja/i2012-12098-1}, keywords = {pi photoproduction, channel cross section, mass spectrum, polarized beam, Crystal Ball}, journal = {European physical journal A : hadrons and nuclei}, doi = {10.1140/epja/i2012-12098-1}, volume = {48}, number = {7}, issn = {1434-6001}, title = {Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region}, keyword = {pi photoproduction, channel cross section, mass spectrum, polarized beam, Crystal Ball} }
@article{article, author = {Zehr, F. and Krusche, B. and Aguar, P. and Arends, H. J. and Beck, R. and Bekrenev, V. and Boillat, B. and Braghieri, A. and Branford, D. and Briscoe, W.J. and Brudvik, J. and Cherepnya, S. and Codling, R. F. B. and Downie, E. J. and Drexler, P. and Glazier, D. I. and Fil'kov, L. V. and Gregor, R. and Heid, E. and Hornidge, D. and Jaegle, I. and Jahn, O. and Kashevarov, V. L. and Kne\v{z}evi\'{c}, Andrea and Kondratiev, R. and Korolija, Milorad and Kotulla, M. and Krambrich, D. and Kulbardis, A. and Lang, M. and Lisin, V. and Livingston, K. and Lugert, S. and MacGregor, I. J. D. and Manley, D. M. and Maghrbi, Y. and Martinez, M. and McGeorge, J. C. and Mekterovi\'{c}, Darko and Metag, V. and Nefkens, B. M. K. and Nikolaev, A. and Ostrick, M. and Pedroni, P. and Pheron, F. and Polonski, A. and Prakhov, S. and Price, J. W. and Rosner, G. and Rost, M. and Rostomyan, T. and Schumann, S. and Sober, D. and Starostin, A. and Supek, Ivan and Tarbert, C. M. and Thomas, A. and Unverzagt, M. and Walcher, Th. and Watts, D. P.}, year = {2012}, pages = {98-1-98-19}, DOI = {10.1140/epja/i2012-12098-1}, keywords = {pi photoproduction, channel cross section, mass spectrum, polarized beam, Crystal Ball}, journal = {European physical journal A : hadrons and nuclei}, doi = {10.1140/epja/i2012-12098-1}, volume = {48}, number = {7}, issn = {1434-6001}, title = {Photoproduction of pi0 pi0 and pi0 pi± pairs off the proton from threshold to the second resonance region}, keyword = {pi photoproduction, channel cross section, mass spectrum, polarized beam, Crystal Ball} }

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

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