ar X iv : h ep - p h / 05 04 27 3 v 2 1 2 Ju l 2 00 5 Magnetic moment of the pentaquark state Θ + ( 1540 )
نویسنده
چکیده
In this article, we study the magnetic moment of the pentaquark Θ(1540) as (scalar)diquark-(pseudoscalar)diquark-antiquark state with the QCD sum rules approach in the external electromagnetic field. Due to the special structure of the interpolating current, only the electromagnetic interactions of the s quark with the external field have contributions to the magnetic moment with tensor structure {σμν p̂+ p̂σμν}. The numerical results indicate the magnetic moment of the pentaquark state Θ(1540) is about μΘ+ = (0.16 ± 0.03)μN . PACS : 12.38.Aw, 12.38.Lg, 12.39.Ba, 12.39.-x
منابع مشابه
ar X iv : h ep - p h / 05 04 27 3 v 1 2 8 A pr 2 00 5 Magnetic moment of the pentaquark state Θ + ( 1540 )
In this article, we study the magnetic moment of the pentaquark Θ(1540) as diquark-diquark-antiquark state with the QCD sum rules approach in the external electromagnetic field. Due to the special structure of the interpolating current, only the interactions of the s quark with the external electromagnetic field have contributions to the tensor structure σμν p̂+ p̂σμν . The numerical results indi...
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