Theta^+ baryon production in kn and nn reactions

Oh, Yongseok; Houng Lee, Su

doi:10.1103/PhysRevD.69.074016

Theta^+ baryon production in kn and nn reactions

Journal Article · Thu Apr 01 04:00:00 EST 2004 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.69.074016· OSTI ID:955416

Oh, Yongseok; Houng Lee, Su

We study Θ+(1540) productions in kaon-nucleon (KN) and nucleon-nucleon (NN) interactionsby assuming that the Θ+ is an isosinglet with J^P = 1/2⁺. Possible t-channel diagrams with K∗exchange are considered in both reactions as well as K exchange in NN reaction. The crosssection for np ! Λ0Θ+, which has not been considered in previous calculations, is found to beabout a factor of 5 larger than that for np ! Σ0Θ+ due to the large coupling of KNΛ interaction.The cross sections are obtained by setting gKN002 = 1 and varying the ratio of gK*N THETA/gKN THETA so that future experimental data can be used to estimate these couplings. We also ﬁnd that the isospin relations hold for these reactions.

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Research Organization:: Thomas Jefferson Lab National Accelerator Facility

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-84ER40150

OSTI ID:: 955416

Report Number(s):: JLAB-THY-03-36; hep-ph/0311054

Journal Information:: Physical Review D, Journal Name: Physical Review D Vol. 69

Country of Publication:: United States

Language:: English

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