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Inelastic K⁺p Reactions at Incident Momenta from 1.37 GeV/c to 2.17 GeV/c


Loken, Stewart Christian (1972) Inelastic K⁺p Reactions at Incident Momenta from 1.37 GeV/c to 2.17 GeV/c. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/ZKRE-V355.


A number of recent experiments have suggested the possibility of a highly inelastic resonance in K+p scattering. To study the inelastic K+p reactions, a 400 K exposure has been taken at the L.R.L. 25 inch bubble chamber. The data are spread over seven K+ momenta between 1.37 and 2.17 GeV/c.

Cross-sections have been measured for the reaction K+p → pK°π+ which is dominated by the quasi-two body channels K∆ and K*N. Both these channels are strongly peripheral, as at other momenta. The decay of the ∆ is in good agreement with the predictions of the rho-photon analogy of Stodolsky and Sakurai. The data on the K*p channel show evidence of both pseudo scalar and vector exchange.

Cross-sections for the final state pK+π+π- shows a strong contribution from the quasi-two body channel K*∆. This reaction is also very peripheral even at threshold. The decay angular distributions indicate the reaction is dominated as at higher momenta by a pion exchange mechanism. The data are also in good agreement with the quark model predictions of Bialas and Zalewski for the K* and ∆ decay.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Physics0
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Barish, Barry C.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1972
Funding AgencyGrant Number
Record Number:CaltechTHESIS:05092016-111120208
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9708
Deposited On:09 May 2016 20:54
Last Modified:01 Jul 2024 22:00

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