Chiral-odd generalized parton distributions for the low-lying octet baryons

We have studied the chiral-odd generalized parton distributions (GPDs) for the octet baryons within the framework of diquark spectator model, emphasizing the difference arising from different quark flavors of proton <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>p</a:mi></a:math> and light hyperons <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi mathvariant="normal">Σ</c:mi><c:mo>+</c:mo></c:msup></c:math> and <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:msup><f:mi mathvariant="normal">Ξ</f:mi><f:mn>0</f:mn></f:msup></f:math>. The equation of quark-quark correlator for the tensor current has been solved to investigate the transversely polarized quark dynamics using light-cone wave functions. In the forward limit, transversity distributions of all the constituent quark flavors of proton, <i:math xmlns:i="http://www.w3.org/1998/Math/MathML" display="inline"><i:msup><i:mi mathvariant="normal">Σ</i:mi><i:mo>+</i:mo></i:msup></i:math> and <l:math xmlns:l="http://www.w3.org/1998/Math/MathML" display="inline"><l:msup><l:mi mathvariant="normal">Ξ</l:mi><l:mn>0</l:mn></l:msup></l:math>, have been studied. Additionally, the first moment of GPD <o:math xmlns:o="http://www.w3.org/1998/Math/MathML" display="inline"><o:msub><o:mi>H</o:mi><o:mi>T</o:mi></o:msub></o:math> and the combination of GPDs <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"><q:msub><q:mi>E</q:mi><q:mi>T</q:mi></q:msub></q:math> and <s:math xmlns:s="http://www.w3.org/1998/Math/MathML" display="inline"><s:msub><s:mover accent="true"><s:mi>H</s:mi><s:mo stretchy="false">˜</s:mo></s:mover><s:mi>T</s:mi></s:msub></s:math> have also been investigated. Our results are comparable with other available model predictions and lattice data for the proton. Furthermore, we have presented a comparative analysis of tensor charges and anomalous tensor magnetic moments for all the constituent quark flavors of the considered baryons, comparing them with available data obtained from different approaches.

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Journal
Physical review. D/Physical review. D.
Published
2025-10-21
DOI
https://doi.org/10.1103/rt3y-2b8g
Primary Topic
Quantum Chromodynamics and Particle Interactions
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article
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article

Chiral-odd generalized parton distributions for the low-lying octet baryons

Harleen Dahiya, Navpreet Kaur
Physical review. D/Physical review. D.
Quantum Chromodynamics and Particle Interactions
article

Chiral-odd generalized parton distributions for the low-lying octet baryons

Harleen Dahiya, Navpreet Kaur
article en

Abstract

We have studied the chiral-odd generalized parton distributions (GPDs) for the octet baryons within the framework of diquark spectator model, emphasizing the difference arising from different quark flavors of proton <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>p</a:mi></a:math> and light hyperons <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi mathvariant="normal">Σ</c:mi><c:mo>+</c:mo></c:msup></c:math> and <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:msup><f:mi mathvariant="normal">Ξ</f:mi><f:mn>0</f:mn></f:msup></f:math>. The equation of quark-quark correlator for the tensor current has been solved to investigate the transversely polarized quark dynamics using light-cone wave functions. In the forward limit, transversity distributions of all the constituent quark flavors of proton, <i:math xmlns:i="http://www.w3.org/1998/Math/MathML" display="inline"><i:msup><i:mi mathvariant="normal">Σ</i:mi><i:mo>+</i:mo></i:msup></i:math> and <l:math xmlns:l="http://www.w3.org/1998/Math/MathML" display="inline"><l:msup><l:mi mathvariant="normal">Ξ</l:mi><l:mn>0</l:mn></l:msup></l:math>, have been studied. Additionally, the first moment of GPD <o:math xmlns:o="http://www.w3.org/1998/Math/MathML" display="inline"><o:msub><o:mi>H</o:mi><o:mi>T</o:mi></o:msub></o:math> and the combination of GPDs <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"><q:msub><q:mi>E</q:mi><q:mi>T</q:mi></q:msub></q:math> and <s:math xmlns:s="http://www.w3.org/1998/Math/MathML" display="inline"><s:msub><s:mover accent="true"><s:mi>H</s:mi><s:mo stretchy="false">˜</s:mo></s:mover><s:mi>T</s:mi></s:msub></s:math> have also been investigated. Our results are comparable with other available model predictions and lattice data for the proton. Furthermore, we have presented a comparative analysis of tensor charges and anomalous tensor magnetic moments for all the constituent quark flavors of the considered baryons, comparing them with available data obtained from different approaches.

Physical review. D/Physical review. D.Vol. 112(7)
Dr. B. R. Ambedkar National Institute of Technology Jalandhar (IN)
Openalex Percentile: Top 86%
Quantum Chromodynamics and Particle Interactions
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