Proposal to study the k+- charge exchange reactions at high energies

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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 ... continued below

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18 pages

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Meyer, Stuart L.; Miller, Donald H.; Hicks, George & U., /Northwestern February 1, 1971.

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Description

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.

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18 pages

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  • Report No.: FERMILAB-PROPOSAL-0113
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/901376 | External Link
  • Office of Scientific & Technical Information Report Number: 901376
  • Archival Resource Key: ark:/67531/metadc877915

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  • February 1, 1971

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 30, 2016, 7 p.m.

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Meyer, Stuart L.; Miller, Donald H.; Hicks, George & U., /Northwestern. Proposal to study the k+- charge exchange reactions at high energies, report, February 1, 1971; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc877915/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.