The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering
We study the semi-inclusive production of real, high-pT, isolated photons in unpolarized and polarized lepton-proton collisions, ℓp→ℓγX. In particular we analyze the transverse nucleon single-spin asymmetry within the collinear twist-3 formalism in perturbative QCD to leading order (LO) accuracy. We...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320301714 |
| _version_ | 1818305916023341056 |
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| author | Weeam S. Albaltan Alexei Prokudin Marc Schlegel |
| author_facet | Weeam S. Albaltan Alexei Prokudin Marc Schlegel |
| author_sort | Weeam S. Albaltan |
| collection | DOAJ |
| description | We study the semi-inclusive production of real, high-pT, isolated photons in unpolarized and polarized lepton-proton collisions, ℓp→ℓγX. In particular we analyze the transverse nucleon single-spin asymmetry within the collinear twist-3 formalism in perturbative QCD to leading order (LO) accuracy. We find that this spin asymmetry is generated by twist-3 dynamical quark-gluon-quark (qgq) correlations in the nucleon through the so-called soft-fermion and hard pole contributions. Hence, this process unprecedentedly allows for a point-by-point scan of the support of the dynamical qgq twist-3 matrix elements FFT(x,x′) and GFT(x,x′) in lepton-nucleon scattering experiments. Keywords: Electron-Ion Collider, Transverse single-spin asymmetries, Lepton-nucleon scattering, Gamma SIDIS, Twist-3, JLAB-THY-19-3067 |
| first_indexed | 2024-12-13T06:34:11Z |
| format | Article |
| id | doaj.art-2795931b02364fa4985a87b20dc7a614 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-13T06:34:11Z |
| publishDate | 2020-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-2795931b02364fa4985a87b20dc7a6142022-12-21T23:56:33ZengElsevierPhysics Letters B0370-26932020-05-01804The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scatteringWeeam S. Albaltan0Alexei Prokudin1Marc Schlegel2Department of Physics, New Mexico State University, Las Cruces, NM 88003-0001, USA; Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University (PNU), Riyadh 11671, Saudi ArabiaDivision of Science, Penn State University Berks, Reading, PA 19610, USA; Theory Center, Jefferson Lab, 12000 Jefferson Avenue, Newport News, VA 23606, USADepartment of Physics, New Mexico State University, Las Cruces, NM 88003-0001, USA; Corresponding author.We study the semi-inclusive production of real, high-pT, isolated photons in unpolarized and polarized lepton-proton collisions, ℓp→ℓγX. In particular we analyze the transverse nucleon single-spin asymmetry within the collinear twist-3 formalism in perturbative QCD to leading order (LO) accuracy. We find that this spin asymmetry is generated by twist-3 dynamical quark-gluon-quark (qgq) correlations in the nucleon through the so-called soft-fermion and hard pole contributions. Hence, this process unprecedentedly allows for a point-by-point scan of the support of the dynamical qgq twist-3 matrix elements FFT(x,x′) and GFT(x,x′) in lepton-nucleon scattering experiments. Keywords: Electron-Ion Collider, Transverse single-spin asymmetries, Lepton-nucleon scattering, Gamma SIDIS, Twist-3, JLAB-THY-19-3067http://www.sciencedirect.com/science/article/pii/S0370269320301714 |
| spellingShingle | Weeam S. Albaltan Alexei Prokudin Marc Schlegel The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering Physics Letters B |
| title | The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering |
| title_full | The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering |
| title_fullStr | The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering |
| title_full_unstemmed | The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering |
| title_short | The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering |
| title_sort | transverse nucleon single spin asymmetry for the semi inclusive production of photons in lepton nucleon scattering |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320301714 |
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