Citation Link: https://doi.org/10.1103/PhysRevD.109.055049
Higher twist corrections to 𝐵 -meson decays into a proton and dark antibaryon from QCD light-cone sum rules
Publication Type
Article
Author(s)
Subjects
Physics
PArticle physics
Twist
Meson
Proton
Nuclear physics
Geometry
Mathematics
Date Issued
2024
Abstract
The <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>B</a:mi></a:math>-mesogenesis framework anticipates decays of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>B</c:mi></c:math> mesons into a dark antibaryon <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi mathvariant="normal">Ψ</e:mi></e:math> and various Standard Model baryons. Here, we focus on the exclusive decay process <h:math xmlns:h="http://www.w3.org/1998/Math/MathML" display="inline"><h:mi>B</h:mi><h:mo stretchy="false">→</h:mo><h:mi>p</h:mi><h:mi mathvariant="normal">Ψ</h:mi></h:math> observed as a proton and missing energy in the final state and determine the decay width by employing the QCD light-cone sum rule framework. We include all contributions up to twist six to the nucleon distribution amplitudes in order to parametrize the nonperturbative effects in the operator product expansion. We obtain the decay width and branching fraction with respect to the mass <l:math xmlns:l="http://www.w3.org/1998/Math/MathML" display="inline"><l:msub><l:mi>m</l:mi><l:mi mathvariant="normal">Ψ</l:mi></l:msub></l:math> of the dark antibaryon <o:math xmlns:o="http://www.w3.org/1998/Math/MathML" display="inline"><o:mi mathvariant="normal">Ψ</o:mi></o:math>. Published by the American Physical Society 2024
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