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Prog. Theor. Phys. Vol. 59 No. 3 (1978) pp. 889-902

[ Full Text PDF : FREE ACCESS (1138K) ]

Large pT Hadron Productions and String Junction Model

Masahiro Imachi and Hiroshi Yoneyama

Department of Physics, Kyushu University, Fukuoka 812

(Received September 24, 1977)

Abstract:

Taking the string model as a realization of confinement, we investigate the role of string and junction (J) in large pT hadron production. Not only the flow of constituent q and junction J line but the motion of string and junction is explicitly examined for (i) the fragmentation processes ((a) (initial hadron)→(constituent q or J)+(spectator) and (b) (Constituent q or J)→(final hadron)+(spectator)) and (ii) the lowest subprocess. Two kinds of jet, q jet (with flavor) and J jet (without flavor), play a different role due to their different connection to strings. J jet is suggested to play an important role in large pT hadron production, especially anomalous behavior of proton production. The reaction πpmp →hX is investigated and the single particle distributions and jet distribution are predicted based on the analysis of pp →hX. The process πpmp →hX is suited to know the properties of the lowest subprocesses, e.g., crossing relation, because it contains all subprocesses (\hatD, \hatX and \hatH type) as the leading components, while the subprocess \hatH does not appear as the leading component in pp →hX. Beam ratio (pp →jet X)/(πp →jet X) is predicted. Hadron production (especially baryon production) in lh →lhX is necessitated to reveal the origin of anomalous proton production in pp →hX.


URL : http://ptp.ipap.jp/link?PTP/59/889/
DOI : 10.1143/PTP.59.889

[ Full Text PDF : FREE ACCESS (1138K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 61 No. 3 (1979) pp. 914-927 :
    Large pT Jet Production and Hard Rearrangement of Quarks
    Takeo Matsuoka and Masahiro Nakamura
  2. Progress of Theoretical Physics Vol. 61 No. 3 (1979) pp. 928-941 :
    Vortex String Picture and Large pT Reactions
    Masahiro Imachi, Tetsuji Kawabe, Shoichiro Otsuki and Hiroshi Yoneyama
  3. Progress of Theoretical Physics Supplement No.63 (1978) pp. 49-279 :
    Constituent Rearrangement Model and Hadron Reactions
    Yuji Igarashi, Masahiro Imachi, Takeo Matsuoka, Kansuke Ninomiya, Shoichiro Otsuki, Shoji Sawada and Fumihiko Toyoda
  4. Progress of Theoretical Physics Supplement No.76 (1983) pp. 157-185 :
    Fire-Ball Model and High Transverse Momentum Pion and Jet Productions at ISR Energies
    Mitsuru Hama and Masayuki Nagasaki

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