Extraction of spin observables in baryon-baryon scattering, sensitive to gluon- and quark-exchange effects
Spin-dependent characteristics of baryon-baryon scattering are discussed, in which QCD dynamics is expected to display itself in most simply treatable regimes: 1). being dominated by semi-classical gluonic field without dynamical quarks; 2). as perturbative scattering. It is argued that peripheral s...
Збережено в:
Дата: | 2007 |
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Автор: | |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2007
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Назва видання: | Вопросы атомной науки и техники |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/110162 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Extraction of spin observables in baryon-baryon scattering, sensitive to gluon- and quark-exchange effects / M.V. Bondarenco // Вопросы атомной науки и техники. — 2007. — № 5. — С. 31-39. — Бібліогр.: 32 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | Spin-dependent characteristics of baryon-baryon scattering are discussed, in which QCD dynamics is expected to display itself in most simply treatable regimes: 1). being dominated by semi-classical gluonic field without dynamical quarks; 2). as perturbative scattering. It is argued that peripheral semi-classical gluon exchange can make a major contribution to the pseudovector scattering amplitude, whereas one of the tensor amplitude components must be seeded by quark exchange, thus containing a hard scale and allowing for perturbative treatment. Expressions for absolute values of the promising amplitudes are derived in terms of double spin asymmetries in NN-scattering. Options for realization of corresponding polarization measurements in strange hyperon collisions with nucleons are analysed, along with consistency tests supplied by additional spin amplitudes emerging in non-identical. |
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