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Measurements of k- p ---> anti-k0 n charge-exchange cross-sections at 25 and 35 gev/c

Belousov, V.I. ; Bolotov, B.N. ; Devishev, M.I. ; et al.

Phys.Lett.B 43 (1973) 76-78, 1973.

Inspire Record 84940 DOI 10.17182/hepdata.28127

Results are presented on the reaction K − p → K̄ o n for momenta above 20 GeV/ c . Events were identified by precise measurement of the opening angle in the decay K o → π + π − without using a magnetic field. The cross-section is described by a power energy dependence.

1 data table

Table 1

No description provided.

On helicity conservation in the reaction pi- p ---> a1 p at 4.45 gev/c

Beketov, G.V. ; Zombkovsky, S.M. ; Kaidalov, A.B. ; et al.

Nucl.Phys.B 59 (1973) 265-272, 1973.

Inspire Record 83967 DOI 10.17182/hepdata.32538

Helicity conservation in the reaction π − p → pA 1 at 4.45 GeV/ c has been studied using 50 cm and 55 cm liquid hydrogen bubble chambers. In the Jackson and the helicity frames the dependence of the ϱ matrix elements on the four-momentum transfer squared to the proton ( t ) for A 1 maximum decay has been calculated. The obtained data are in a good agreement with t -channel helicity conservation. The t -channel dependence of the ϱ matrix elements in the mentioned frames is in good agreement with that calculated using the Regge π-pole exchange model (it is suggested that the A 1 maximum nature is explained by a kinematical effect of the Deck type).

1 data table

Table 1

No description provided.