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Prog. Theor. Phys. Vol. 61 No. 1 (1979) pp. 202-217

[ Full Text PDF : FREE ACCESS (1380K) ]

String-Junction Model and Width of Baryonium

Masahiro Imachi, Sachiko Ito and Shoichiro Otsuki

Department of Physics, Kyushu University 33, Fukuoka 812

(Received July 22, 1978)

Abstract:

The string-junction model incorporates a selection rule (covalence rule) as a natural extension of the OZI and FWR rules. This rule forbids meson cascade decay among the different kinds of baryonium, M42, M22 and S02, where the lower (upper) index denotes the total number of quarks (junctions).
Consequences of the covalence rule for variation in width of baryonium candidates in the mass range 1.4∼2.2GeV are examined. A possibility is pointed out that above 2GeV candidates with narrow width contain one or more strange quark pairs with small production cross sections (ψ like baryonium), while baryonium states without strange quark pairs above 2GeV have width broad enough and are expected to account for BB duality.
A brief comparison is made between the string-junction model with models in the bag picture.


URL : http://ptp.ipap.jp/link?PTP/61/202/
DOI : 10.1143/PTP.61.202

[ Full Text PDF : FREE ACCESS (1380K) ] Citation:

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Citing Article(s) :

  1. 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
  2. Progress of Theoretical Physics Vol. 62 No. 4 (1979) pp. 1165-1167 :
    Hair Pin Line Rule and Baryonium Decay
    Masahiro Imachi, Sachiko Ito and Shoichiro Otsuki

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