NEGATIVE MESON ABSORPTION IN LIQUID HYDROGEN

Journal Article · Sun Jul 15 00:00:00 EDT 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.127.636· OSTI ID:4796855

Leon, M; Bethe, H A

A theoretical study has been made of the atomic piocesses involved in the absorption of pi /sup -/ and K/sup -/ mesons in liquid hydrogen, with the main purpose of setting an upper limit on the fraction of K mesons that react with the proton from the P state. The principal mode of de-excitation of the mesonic atom, Auger ionization of neighboring hydrogen atoms, was calculated in Born approximation for all the appropriate initial and final values of n. The Stark mixing process discussed by Day, Snow, and Sucher, which allows S-state reaction from high n orbitals, was calculated quantitatively using an impact parameter method and including the effect of the S-state energy shift. In agreement with Day et al., it was found that practically all of the K/sup -/ mesons react from the S-state; the actual fraction of Pstate reactions is less than 1%. In addition, the calculated cascade time for pi /sup -/ in liquid hydrogen is compatible with the experimental value. (auth)

• Research Organization: Cornell Univ., Ithaca, N.Y.
• NSA Number: NSA-16-028000
• OSTI ID: 4796855
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 127; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ATOMS
AUGER EFFECT
BORN APPROXIMATION
ELECTRONS
ENERGY LEVELS
EXCITATION
HYDROGEN
INTERACTIONS
IONIZATION
KAONS
KAONS- MINUS
LIQUIDS
NUMERICALS
PERTURBATION THEORY
PHYSICS
PIONS
PIONS-MINUS
PROTONS
S-STATES
SCATTERING