Vector meson-baryon dynamics in photoproduction reactions around 2 GeV

被引：0
作者：
Ramos, A. [1 ,2 ]
Oset, E. [3 ,4 ]
机构：
[1] Univ Barcelona, Dept Estruct & Constituents Mat, E-08028 Barcelona, Spain
[2] Univ Barcelona, Inst Ciencies Cosmos, E-08028 Barcelona, Spain
[3] Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, Dept Fis Teor, Valencia 46071, Spain
[4] Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, IFIC, Valencia 46071, Spain
来源：
MESON 2014 - 13TH INTERNATIONAL WORKSHOP ON PRODUCTION, PROPERTIES AND INTERACTION OF MESONS | 2014年 / 81卷
关键词：
CHIRAL DYNAMICS; NUCLEON INTERACTIONS; THRESHOLD; K-0-SIGMA(+); RESONANCES; CHANNELS; PROTON; STATES;
D O I：
10.1051/epjconf/20148105023
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the role of vector mesons and coupled-channel unitarization on photoproduction reactions off the proton at energies around 2 GeV. We explain the sudden drop on the gamma p -> K-0 Sigma(+) cross section, observed recently by the CBELSA/TAPS collaboration, by a delicate interference between amplitudes having K*Lambda and K*Sigma intermediate states modulated by the presence of a nearby N* resonance produced by our model, a feature that we have employed to predict its properties. We also show the importance of coupled-channel unitarization in the gamma p -> K*(0)Sigma(+) reaction, measured recently by CBELSA/TAPS and CLAS with conflicting results.
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页数：4
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共 18 条
  • [1] K-p scattering length from scattering experiments
    Borasoy, B.
    Meissner, U. -G.
    Nissler, R.
    [J]. PHYSICAL REVIEW C, 2006, 74 (05):
  • [2] Nucleon resonance decay by the K0Σ+ channel
    Castelijns, R.
    Anisovich, A. V.
    Bacelar, J. C. S.
    Bantes, B.
    Bartholomy, O.
    Bayadilov, D.
    Beloglazov, Y. A.
    Crede, V.
    Dutz, H.
    Ehmanns, A.
    Elsner, D.
    Essig, K.
    Ewald, R.
    Fabry, I.
    Fornet-Ponse, K.
    Fuchs, M.
    Funke, C.
    Gothe, R.
    Gregor, R.
    Gridnev, A. B.
    Gutz, E.
    Hoeffgen, S.
    Hoffmeister, P.
    Horn, I.
    Jaegle, I.
    Junkersfeld, J.
    Kalinowsky, H.
    Kammer, S.
    Klein, Frank
    Klein, Friedrich
    Klempt, E.
    Konrad, M.
    Kotulla, M.
    Krusche, B.
    Langheinrich, J.
    Loehner, H.
    Lopatin, I. V.
    Lotz, J.
    Lugert, S.
    Menze, D.
    Mertens, T.
    Messchendorp, J. G.
    Metag, V.
    Morales, C.
    Nanova, M.
    Nikonov, V. A.
    Novinski, D.
    Novotny, R.
    Ostrick, M.
    Pant, L. M.
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2008, 35 (01) : 39 - 45
  • [3] Anomaly in the KS0Σ+ photoproduction cross section off the proton at the K* threshold
    Ewald, R.
    Bantes, B.
    Bartholomy, O.
    Bayadilov, D.
    Beck, R.
    Beloglazov, Y. A.
    Brinkmann, K. -T.
    Crede, V.
    Dutz, H.
    Elsner, D.
    Fornet-Ponse, K.
    Frommberger, F.
    Funke, Ch
    Gridnev, A. B.
    Gutz, E.
    Hillert, W.
    Hannappel, J.
    Hoffmeister, P.
    Jaegle, I.
    Jahn, O.
    Jude, T.
    Junkersfeld, J.
    Kalinowsky, H.
    Kammer, S.
    Kleber, V.
    Klein, Frank
    Klein, Friedrich
    Klempt, E.
    Krusche, B.
    Lang, M.
    Lohner, H.
    Lopatin, I. V.
    Menze, D.
    Mertens, T.
    Messchendorp, J. G.
    Metag, V.
    Nanova, M.
    Novinski, D.
    Novotny, R.
    Ostrick, M.
    Pant, L.
    van Pee, H.
    Roy, A.
    Schadmand, S.
    Schmidt, C.
    Schmieden, H.
    Schoch, B.
    Shende, S.
    Sokhoyan, V.
    Suele, A.
    [J]. PHYSICS LETTERS B, 2012, 713 (03) : 180 - 185
  • [4] Effects of pseudoscalar-baryon channels in the dynamically generated vector-baryon resonances
    Garzon, E. J.
    Oset, E.
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2012, 48 (01)
  • [5] Cross sections for the γp→K*0Σ+ reaction at Eγ=1.7-3.0 GeV
    Hleiqawi, I.
    Hicks, K.
    Carman, D. S.
    Mibe, T.
    Niculescu, G.
    Tkabladze, A.
    Amarian, M.
    Ambrozewicz, P.
    Anghinolfi, M.
    Asryan, G.
    Avakian, H.
    Bagdasaryan, H.
    Baillie, N.
    Ball, J. P.
    Baltzell, N. A.
    Batourine, V.
    Battaglieri, M.
    Beard, K.
    Bedlinskiy, I.
    Bellis, M.
    Benmouna, N.
    Berman, B. L.
    Biselli, A. S.
    Bouchigny, S.
    Boiarinov, S.
    Bradford, R.
    Branford, D.
    Briscoe, W. J.
    Brooks, W. K.
    Bultmann, S.
    Burkert, V. D.
    Butuceanu, C.
    Calarco, J. R.
    Careccia, S. L.
    Carnahan, B.
    Chen, S.
    Cole, P. L.
    Collins, P.
    Coltharp, P.
    Crabb, D.
    Crannell, H.
    Crede, V.
    Cummings, J. P.
    De Masi, R.
    De Vita, R.
    De Sanctis, E.
    Degtyarenko, P. V.
    Dennis, L.
    Deur, A.
    Djalali, C.
    [J]. PHYSICAL REVIEW C, 2007, 75 (04):
  • [6] Chiral SU(3) theory of antikaon-nucleon interactions with improved threshold constraints
    Ikeda, Yoichi
    Hyodo, Tetsuo
    Weise, Wolfram
    [J]. NUCLEAR PHYSICS A, 2012, 881 : 98 - 114
  • [7] Chiral dynamics of the two Λ(1405) states
    Jido, D
    Oller, JA
    Oset, E
    Ramos, A
    Meissner, UG
    [J]. NUCLEAR PHYSICS A, 2003, 725 : 181 - 200
  • [8] CHIRAL DYNAMICS AND THE LOW-ENERGY KAON-NUCLEON INTERACTION
    KAISER, N
    SIEGEL, PB
    WEISE, W
    [J]. NUCLEAR PHYSICS A, 1995, 594 (03) : 325 - 345
  • [9] Negative parity Λ and Σ resonances coupled to pseudoscalar and vector mesons
    Khemchandani, K. P.
    Martinez Torres, A.
    Nagahiro, H.
    Hosaka, A.
    [J]. PHYSICAL REVIEW D, 2012, 85 (11):
  • [10] K*Σ photoproduction off the proton target with baryon resonances
    Kim, Sang-Ho
    Nam, Seung-il
    Hosaka, Atsushi
    Kim, Hyun-Chul
    [J]. PHYSICAL REVIEW D, 2013, 88 (05):
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