Structure in pp elastic polarisation and pomeron-flip

Journal Article · Sun Jun 01 00:00:00 EDT 1980 · Hadronic J.; (United States)

OSTI ID:6760745

Kamran, M

An investigation of pp (and np) elastic polarisations in the region 10 less than or equal to p/sub lab/ less than or equal to 300 GeV/c and absolute value of t less than or equal to 0.9 (GeV/c)/sup 2/ is carried out using the Regge pole model with phenomenologically parameterized residues. In an attempt to reproduce the polarisation structure for absolute value of t less than or equal to 0.5 (GeV/c)/sup 2/ and p/sub lab/ greater than or equal to 45 GeV/c a Pomeron-flip contribution is included. It is shown that a Pomeron-flip contribution, although yielding a good overall chi/sup 2//pt for a fit to the data, cannot reproduce the polarisation zero observed in the aforementioned (p/sub lab/,t) region (we use ..cap alpha../sub p/ = 0.23). It is however found that if one invokes an Odderon-flip contribution the polarisation structure can be easily reproduced. The Odderon is the odd-signatured partner of the Pomeron and has isospin one. Its existence has been recently invoked in order to account for the disturbing energy dependence of the np CEX data.

• Research Organization: Punjab Univ., Lahore, Pakistan
• OSTI ID: 6760745
• Journal Information: Hadronic J.; (United States), Vol. 3:4
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTON-PROTON INTERACTIONS
ELASTIC SCATTERING
SPIN ORIENTATION
GEV RANGE 10-100
GEV RANGE 100-1000
POMERANCHUK PARTICLES
REGGE POLES
THEORETICAL DATA
BARYON-BARYON INTERACTIONS
BOSONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MESONS
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
ORIENTATION
PARTICLE INTERACTIONS
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
SCATTERING
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties