Test of charge-conjugation invariance in p-barp interactions

Journal Article · Sat Apr 01 00:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.17.1706· OSTI ID:7086297

Cester, R; Fitch, V L; Kadel, R W; Webb, R C; Whittaker, J D; Witherell, M S; May, M

Using p-barp interactions at ..sqrt..s = 5.44 GeV we have tested for evidence of C noninvariance through a comparison of the transverse-momentum distributions of particle and antiparticle produced at 90/sup 0/ in the center of mass. We found an average charge asymmetry for pions with p/sub perpendicular/ between 0.5 and 2.7 GeV/c of ..delta.. = (N/sub +/ - N/sub -/)/(N/sub +/ + N/sub -/) =0.006 +- 0.009. This corresponds to a limit on the magnitude of the C-violating (relative to C-conserving amplitude) of Re..cap alpha.. < or = 0.0045.

• Research Organization: Department of Physics, Princeton University, Princeton, New Jersey 08540
• OSTI ID: 7086297
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 17:7; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Interactions &amp; Baryon &amp; Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
BROOKHAVEN AGS
C INVARIANCE
CENTER-OF-MASS SYSTEM
CHERENKOV COUNTERS
CYCLIC ACCELERATORS
DISTRIBUTION
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
INCLUSIVE INTERACTIONS
INTERACTIONS
INVARIANCE PRINCIPLES
LINEAR MOMENTUM
MEASURING INSTRUMENTS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-ANTIPROTON INTERACTIONS
RADIATION DETECTORS
SCINTILLATION COUNTERS
SYNCHROTRONS
TRANSVERSE MOMENTUM