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Study of Longitudinal Distributions in the Fragmentation Regions, Using the Quark - Parton Model in $K^- p$ Interactions at 70-{GeV}/$c$

de Billy, L. ; Briand, H. ; Dumarchez, J. ; et al.
Nucl.Phys.B 191 (1981) 574-590, 1981.
Inspire Record 10816 DOI 10.17182/hepdata.34218

The study of π ± , π 0 , K 0 and Λ production in the fragmentation regions (| x |0.2) of K − p interactions at 70 GeV/ c shows that the x -dependence of each invariant cross section is well described by the power law (1−| x |) n suggested by the dimensional counting rule. Furthermore, pion production is found, both in K − and proton fragmentation regions, to be very similar to their production in ν( ν ) p interactions as expected from quark-parton models. The quark and diquark fragmentation functions D u π , D uu π and D ud π are extracted from our data.

1 data table
Table 1

No description provided.


Energy Dependence of Transverse Momentum Invariant Distribution of Pions and Neutral Kaons in $K^- p$ Interactions Between 14.3-{GeV}/$c$ and 70-{GeV}/$c$

Laffaille, J.M. ; Barloutaud, R. ; Louedec, C. ; et al.
Nucl.Phys.B 192 (1981) 18, 1981.
Inspire Record 156048 DOI 10.17182/hepdata.34202

The energy dependence of the transverse momentum invariant distribution of pions and neutral kaons is studied in K − p interactions between 14.3 and 70 GeV/ c . The large P T part of the distributions violates the Feynman scaling and, above P T ≃ 1.5 GeV/ c , appears to be reasonably described by hard scattering models. The variation of the average transverse momentum is also studied as a function of the c.m. reduced longitudinal momentum, and its behaviour is compared to the data obtained via the hadronic shower produced in lepton-hadron interactions.

2 data tables
Table 1

HERE K0 MEANS K0 OR AK0 I.E. K(NEUTRAL).

Table 2

No description provided.