Published November 21, 1983
| Version v1
Journal article
Parity violation in pion-proton scattering
Creators
- 1. European Organization for Nuclear Research, Geneva (Switzerland). Theory Div.
- 2. Lisbon Univ. (Portugal). Centro de Fisica Nuclear
- 3. Zagreb Univ. (Yugoslavia). Zavod za Theorijsku Fiziku
- 4. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.). Werner-Heisenberg-Inst. fuer Physik
Description
Parity-violating pion-proton scattering is strongly dominated by so-called penguin operators. These operators are due to the presence of the neutral current, and their strength is further enhanced by the QCD renormalization effects. Without such contributions the elastic asymmetry (Asub(l)) would be an order of magnitude smaller (up to 150 MeV of the pion laboratory kinetic energy). Possible contributions from the resonance poles (rho-meson, (1/2+)sup(*)-reson) have been also included. Thus pion scattering on the polarized proton can test the commonly-used effective QCD renormalized weak hamiltonian. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys., B
- Journal Volume
- 228
- Journal Issue
- 2
- Series
- CODEN: NUPBB.;Nucl. Phys., B.
- Journal Page Range
- 216-228
- ISSN
- 0550-3213
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 15020042
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CHARGE-EXCHANGE REACTIONS; DIFFERENTIAL CROSS SECTIONS; ELASTIC SCATTERING; ENERGY DEPENDENCE; HAMILTONIANS; MEV RANGE 100-1000; NEUTRAL-CURRENT INTERACTIONS; NEUTRONS; P INVARIANCE; PION MINUS-PROTON INTERACTIONS; PION PLUS-PROTON INTERACTIONS; PION-PROTON INTERACTIONS; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; POLARIZATION-ASYMMETRY RATIO; POLARIZED TARGETS; PROTONS; REGGE POLES; RENORMALIZATION; SCATTERING; SINGULARITY; SYMMETRY BREAKING; THEORETICAL DATA; WEAK INTERACTIONS
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BARYONS; BASIC INTERACTIONS; BOSONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; IONS; MATHEMATICAL OPERATORS; MATTER; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; MEV RANGE; NUCLEAR REACTIONS; NUCLEONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PION-NUCLEON INTERACTIONS; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; QUANTUM OPERATORS; TARGETS
Optional Information
- Contract/Grant/Project number
- Contract YOR 82/051