Vortex String Picture and Large p_T Reactions
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概要
- 論文の詳細を見る
The deviation of the observed behavior, ρ〜p^<-n>_T (n〜8) of the single particle inclusive cross section from the QCD prediction of ρ〜p^<-4>_T may suggest that we have not yet reached the asymptotically perturbative region of QCD but nonperturbative effects of confinement remain in the hard subprocess of strong interactions. On the basis of the vortex string model as a realization of confinement, a possibility is examined to attribute the above deviation from the p^<-4>_T rule to the radial density distribution of the vortex flux along the transverse extension l_⊥, if the hard subprocess takes place only when two vortex strings overlap with each other. In a simplified treatment of scattering of two parallel vortices, the magnetic flux distribution of the Nielsen-Olesen model gives ρ〜p^<-12>_T, and the two-dimensional Yukawa type distribution gives the p^<-8>_T behavior. When the overlap through crossover of two vortex strings is the basic interaction and has the form x^^〜(k)〜k^<-2> for the transferred momentum k, ρ〜p^<-8_T and various power behaviors are explained in accord with the quark-junction power counting rule proposed earlier. A relation of the vortex crossover to quantization of the vortex flux is discussed. Since photons and leptons interact with neither strings nor the junctions but only with quarks, the possibility proposed here allows the ordinary parton interpretation of the leptonhadron reactions. The observed k_T〜1 GeV, the averaged transverse momentum of quarks, may be related to l_⊥.
- 理論物理学刊行会の論文
- 1979-03-25
著者
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Kawabe Tetsuji
Department Of Physics Kyushu University
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OTSUKI Shoichiro
Department of Physics Nagoya University
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YONEYAMA Hiroshi
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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OTSUKI Shoichiro
Kyushu School of Engineering, Kinki University
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OTSUKI Shoichiro
Kyusyu School of Engineering, Kinki University
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Imachi M
Department Of Physics Yamagata University
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Yoneyama Hiroshi
Department Of Physics Kyushu University
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IMACHI Masahiro
Department of Physics, Kyushu University
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Otsuki Shoichiro
Department Of Physics Kyoto University
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Imachi Masahiro
Department Of Physics Kyushu University
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Yoneyama Hiroshi
Department Of Applied Chemistry Faculty Of Engineerig Osaka University
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IMACHI Masahiro
Departmnet of Physics,Kyushu University
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IMACHI Masahiro
Department of Physics, Kyusyu University
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OTSUKI Shoichiro
Department of Liberal Arts, Kinki University
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OTSUKI Shoichiro
Department of Physics, Kyusyu University
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Yoneyama Hiroshi
Department of Applied Chemisrty, Faculty of Engineering, Osaka University
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