Proposal to study the k+- charge exchange reactions at high energies
An experiment is proposed for measurement of the K{sup {+-}} {yields} K-Long charge-exchange reactions using unseparated beams; useful rates are obtained for p{sub inc}{le}100 GeV/c and -t {le} 1 (GeV/c){sup 2}. A V-spectrometer with resolution {+-}1% is used downstream of the target for detection of the decays K-long {yields} {pi}{sup +}{pi}{sup -}. Using hydrogen and deuterium targets, the detection system is designed to measure: (1) d{sigma}/dt for K{sup -}p {yields} {bar K}{sup 0}n. The reaction will be distinguished from background processes involving N* and K* production by kinematics and supplementary detectors surrounding the target. (2) d{sup 2}{sigma}/dpdt for K{sup -}d {yields} {bar K}{sup 0}nn. This final state will be distinguished from those involving production of {pi}{sup 0}'s or charged particles primarily by the supplementary target veto array. Use of a deuterium target will provide partial clarification of the problems to be encountered in achieving part 3. In principle, some information on the relative sizes of the spin-flip and non-spin-flip amplitudes will be obtained. (3) d{sup 2}{sigma}/dpdt for K{sup +}d {yields} K{sup 0}pp. Since charged particles are produced at the interaction vortex, this final state can be reliably extracted only with the insight gained in parts (1) and (2) and a detailed study of the distributions in the target veto counter array.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 901376
- Report Number(s):
- FERMILAB-PROPOSAL-0113; TRN: US200722%%281
- Country of Publication:
- United States
- Language:
- English
Similar Records
Production characteristics of neutral and charged D mesons in 800-Gev p-emulsion interactions
Electroproduction of {rho}{sup 0} mesons on protons in quasielastic kinematics at intermediate energies and spin-flip mechanism of direct meson knockout