Inclusive production of K̄1(890) and K̄1(1420) in K̄−p interactions at 10 and 16 GeV/c |
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Authors: | HG Kirk R Schulte P Sixel M Klein M Walter MJ Counihan DJ Kocher P Kostka PK Malhotra DRO Morrison H Saarikko KL Wernhard KWJ Barnham RM Eason DP Dallman F Mandl M Markytan |
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Institution: | III. Physik. Inst. der Tech. Hochschule, Aachen, Germany;Inst. für Hochenergiephysik der Akad. der Wissensch. der DDR, Berlin-Zeuthen, Germany;CERN, European Organization for Nuclear Research, Geneva, Switzerland;Physics Department, Imperial College, London, UK;Inst. für Hochenergiephysik der Österreichischen Akad. der Wissensch. Vienna, Austria |
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Abstract: | The inclusive production of K?1(890) and K?1(1420) is studied in K??p interactions at 10 and 16 GeV/c. At 10 GeV/c an enhancement in the () mass distribution is found at 1.74 GeV, but no clear signal is seen at 16 GeV/c. The fraction of coming from decay of the is large, being (50 ± 6)% and (45 ± 5)% at 10 and 16 GeV/c, respectively. The inclusive cross sections for K1?(890) and production are almost constant with energy from 8 to 32 GeV/c with values of 3.5 and 3.3 mb, respectively. The production cross section is studied as a function of transverse and longitudinal variables and found to derive mainly from fragmentation of the incident K? meson. The spectra of resulting from the decay of are studied. |
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Keywords: | Aachen-Berlin-CERN-London-Vienna Collaboration |
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