Developments in the phenomenology of two-to-three particle reactions Page: 3 of 50
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interferences; the phase structure of the two-Reggeon one-particle vertex,
and so forth.
For reasons too complex to try to explain I returned recently to an old
fascination with 2 - 3 particle processes. I will describe here some of
the problems we have tried to resolve in this domain at Argonne during the
past half year or so.
2. EXC1JSIVE DIFFRACrrE PROCESSES AND THE DECK MODEL
Many but not all of my remarks pertain to so-called diffractive processes,
anong which I may list
pp + p(ni+) 1(a)
np + (pr~)p 1(b)
pp -+ p( S~) 1(c)
Tp - (np)p 1(d)
Kp+ (Ki )p . 1(e)
For convenience of notation, and to call attention to the similarity of
all of these, I write
ap + (a i)p . 1(f)
Variables are defined in Fig. 1(a). Here a is an incident hadron from the
set K_, Jt, K, K, p, p, n and so forth. The related charge-exchange
processes such as
K-p -+ (K ~rn (2)
should b treated at the same time.
In reactions (1), the excited system is indicated in parentheses. The
cross-section is concentrated at relatively small mass M of this system,
Here’s what’s next.
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Berger, E.L. Developments in the phenomenology of two-to-three particle reactions, report, July 1, 1975; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc880533/m1/3/: accessed May 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.