Ma, Bo-Qiang ; Schmidt, I. 
; Yang, Jian-Jun
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | The European Physical Journal C |
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| Verlag: | SPRINGER |
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| Ort der Veröffentlichung: | NEW YORK |
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| Band: | 40 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 1 |
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| Seitenbereich: | S. 63-67 |
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| Datum: | 2005 |
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| Institutionen: | Nicht ausgewählt |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1140/epjc/s2005-02136-x | DOI |
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| Stichwörter / Keywords: | DEEP-INELASTIC SCATTERING; PARTON DISTRIBUTIONS; PION-PRODUCTION; SEMIINCLUSIVE ELECTROPRODUCTION; AZIMUTHAL ASYMMETRY; STATE INTERACTIONS; MELOSH ROTATION; PROTON SPIN; SUM-RULES; DRELL-YAN; |
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| Dewey-Dezimal-Klassifikation: | Nicht ausgewählt |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 70875 |
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Zusammenfassung
We investigate the Collins effect in single spin asymmetries ( SSAs) of the p(up arrow)p -> pi X process by taking into account the transverse momentum dependence of the microscopic sub-process cross sections, with the transverse momentum in the Collins function integrated over. We find that the asymmetries due to the Collins effect can only explain the available data at best qualitatively, by ...
Zusammenfassung
We investigate the Collins effect in single spin asymmetries ( SSAs) of the p(up arrow)p -> pi X process by taking into account the transverse momentum dependence of the microscopic sub-process cross sections, with the transverse momentum in the Collins function integrated over. We find that the asymmetries due to the Collins effect can only explain the available data at best qualitatively, by using our choices of quark distributions in the quark-diquark model and a pQCD-based analysis, together with several options of the Collins function. Our results indicate the necessity to take into account contributions from other effects such as the Sivers effect or twist-3 contributions.
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