Quark dynamics and pion-nucleon coupling

W. Weise; E. Werner

doi:10.1016/0370-2693(81)90299-9

Quark dynamics and pion-nucleon coupling

W. Weise, E. Werner

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12 Scopus citations

Abstract

In the framework of nonperturbative QCD phenomenology we discuss: (1) The elementary process for the creation of color-singlet qq-pairs inside a hadron. (2) The interaction of the qq-pair with the surrounding quark-gluon medium. An important consequence of these discussions is that meson emission takes place preferentially, if the primary qq-pair is created in the surface region of the hadron. For the case of pseudoscalar coupling we employ PCAC to obtain the coupling of the qq-pair to the pion. The resulting form and coupling strength of the πNN vertex is consistent with the phenomenological OPEP.

Original language	English
Pages (from-to)	223-227
Number of pages	5
Journal	Physics Letters B
Volume	101
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(81)90299-9
State	Published - 14 May 1981
Externally published	Yes

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title = "Quark dynamics and pion-nucleon coupling",

abstract = "In the framework of nonperturbative QCD phenomenology we discuss: (1) The elementary process for the creation of color-singlet qq-pairs inside a hadron. (2) The interaction of the qq-pair with the surrounding quark-gluon medium. An important consequence of these discussions is that meson emission takes place preferentially, if the primary qq-pair is created in the surface region of the hadron. For the case of pseudoscalar coupling we employ PCAC to obtain the coupling of the qq-pair to the pion. The resulting form and coupling strength of the πNN vertex is consistent with the phenomenological OPEP.",

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AU - Werner, E.

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N2 - In the framework of nonperturbative QCD phenomenology we discuss: (1) The elementary process for the creation of color-singlet qq-pairs inside a hadron. (2) The interaction of the qq-pair with the surrounding quark-gluon medium. An important consequence of these discussions is that meson emission takes place preferentially, if the primary qq-pair is created in the surface region of the hadron. For the case of pseudoscalar coupling we employ PCAC to obtain the coupling of the qq-pair to the pion. The resulting form and coupling strength of the πNN vertex is consistent with the phenomenological OPEP.

AB - In the framework of nonperturbative QCD phenomenology we discuss: (1) The elementary process for the creation of color-singlet qq-pairs inside a hadron. (2) The interaction of the qq-pair with the surrounding quark-gluon medium. An important consequence of these discussions is that meson emission takes place preferentially, if the primary qq-pair is created in the surface region of the hadron. For the case of pseudoscalar coupling we employ PCAC to obtain the coupling of the qq-pair to the pion. The resulting form and coupling strength of the πNN vertex is consistent with the phenomenological OPEP.

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U2 - 10.1016/0370-2693(81)90299-9

DO - 10.1016/0370-2693(81)90299-9

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VL - 101

SP - 223

EP - 227

JO - Physics Letters B

JF - Physics Letters B

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ER -

Quark dynamics and pion-nucleon coupling

Abstract

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