Published July 1994
| Version v1
Journal article
Instantons and the spin of a proton
Description
The problem of spin crisis related to smallness of an axial charge of a nucleon, found out in SLAC and European Muon Collaboration, is discussed. It is shown that nonperturbative interactions of quarks with vacuum instantons would be taken into account in computing matrix elements of currents over nucleon states. In this case we obtain a qualitative agreement with experimental results for the value of axial charge
Additional details
Additional titles
- Original title (Ukrainian)
- Yinstantoni ta spyin protona
Publishing Information
- Journal Title
- Ukrainskij Fizicheskij Zhurnal
- Journal Volume
- 39
- Journal Issue
- 7,8
- Journal Page Range
- p. 777-780.
- ISSN
- 0503-1265
- CODEN
- UFIZAW
INIS
- Country of Publication
- Ukraine
- Country of Input or Organization
- Ukraine
- INIS RN
- 26064583
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AXIAL-VECTOR CURRENTS; INSTANTONS; INTERACTIONS; LAGRANGIAN FUNCTION; MATRIX ELEMENTS; QUARKS; SPIN; U-1 GROUPS; VACUUM STATES
- Descriptors DEC
- ALGEBRAIC CURRENTS; ANGULAR MOMENTUM; CURRENTS; ELEMENTARY PARTICLES; FERMIONS; FUNCTIONS; LIE GROUPS; PARTICLE PROPERTIES; POSTULATED PARTICLES; QUASI PARTICLES; SYMMETRY GROUPS; U GROUPS