Photon correlations in positron annihilation

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.062121· OSTI ID:21407903

Gauthier, Isabelle; Hawton, Margaret ^[1]

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1. Department of Physics, Lakehead University, Thunder Bay, Ontario, P7B 5E1 (Canada)

The two-photon positron annihilation density matrix is found to separate into a diagonal center-of-energy factor implying maximally entangled momenta, and a relative factor describing decay. For unknown positron injection time, the distribution of the difference in photon arrival times is a double exponential at the para-Ps decay rate, consistent with experiment [V. D. Irby, Meas. Sci. Technol. 15, 1799 (2004)].

• OSTI ID: 21407903
• Journal Information: Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062121; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION
CORRELATIONS
DECAY
DENSITY MATRIX
DISTRIBUTION
PHOTONS
POSITRONS
QUANTUM ENTANGLEMENT
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BOSONS
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
LEPTONS
MASSLESS PARTICLES
MATRICES
MATTER
PARTICLE INTERACTIONS