Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Spin dependence of high-p/sub perpendicular//sup 2/ elastic p-p scattering

Journal Article · · Phys. Rev. Lett.; (United States)
; ; ; ; ; ; ; ; ; ;
We measured dsigma/dt for p/sub arrow-down/ + p/sub arrow-down/ ..-->.. p + p from P/sub perpendicular//sup 2/ = 4.50 to 5.09 (GeV/c)/sup 2/ at 11.75 GeV/c. We used a 59%-polarized proton beam and a 71%-polarized proton target with both spins oriented perpendicular to the scattering plane. In these large-p/sub perpendicular//sup 2/ hard-scattering events, spin effects are very large and the ratio (dsigma/dt)/sub arrow-uparrow-up/:(dsigma/dt)/sub arrow-uparrow-down/ grows rapidly with increasing P/sub perpendicular//sup 2/, reaching a value of 4 at 90/sup 0/ (c.m.). Thus, hard elastic scattering, which is presumably due to the direct scattering of the protons' constituents, may only occur when the two incident proton' spins are parallel.
Research Organization:
Randall Laboratory of Physics, The University of Michigan, Ann Arbor, Michigan 48109
OSTI ID:
6465634
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:19; ISSN PRLTA
Country of Publication:
United States
Language:
English

Similar Records

High-P/sub transverse//sup 2/ p-p elastic scattering in pure initial spin states
Journal Article · Mon Aug 01 00:00:00 EDT 1977 · Phys. Rev., D; (United States) · OSTI ID:7090704
Spin-spin interactions in high-transverse momentum elastic p-p scattering
Journal Article · Mon Sep 19 00:00:00 EDT 1977 · Phys. Rev. Lett.; (United States) · OSTI ID:7090709
Energy dependence of spin-spin effects in p-p elastic scattering at 90/sup 0//sub c. m. /
Journal Article · Sat Jan 31 23:00:00 EST 1981 · Phys. Rev., D; (United States) · OSTI ID:6639408

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BARYON-BARYON INTERACTIONS
BEAMS
CROSS SECTIONS
CYCLIC ACCELERATORS
ELASTIC SCATTERING
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
NUCLEON-NUCLEON INTERACTIONS
ORIENTATION
PARTICLE INTERACTIONS
POLARIZED BEAMS
POLARIZED TARGETS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SCATTERING
SPIN ORIENTATION
SYNCHROTRONS
TARGETS
TRANSVERSE MOMENTUM
ZGS