Longitudinal-momentum distributions for positive particles produced at small angles in proton-proton collisions at a cm energy of 446 GeV

Longitudinal-momentum spectra are presented for the production of K /sup +/ and pi /sup +/ mesons at the CERN ISR at a transverse momentum of 0.8 GeV/c and a total c.m. energy of 44.6 GeV. Proton spectra for transverse momenta between 0.7 and 1.2 GeV/c are also given. The spectra cover a range of 0....

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Detalles Bibliográficos
Autores principales: Albrow, M G, Barber, D P, Bogaerts, A, Bosnjakovic, B, Brooks, J R, Clegg, A B, Erné, F C, Gee, C N P, Kanaris, A D, Locke, D H, Loebinger, F K, Murphy, P G, Rudge, A, Sens, Johannes C, Terwilliger, K M, Van der Veen, F
Lenguaje:eng
Publicado: 1973
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(73)90523-3
http://cds.cern.ch/record/880818
Descripción
Sumario:Longitudinal-momentum spectra are presented for the production of K /sup +/ and pi /sup +/ mesons at the CERN ISR at a transverse momentum of 0.8 GeV/c and a total c.m. energy of 44.6 GeV. Proton spectra for transverse momenta between 0.7 and 1.2 GeV/c are also given. The spectra cover a range of 0.2 to 1.0 in the Feynman variable x=2p/sub L // square root s. The pi /sup +/ spectrum agrees well with scaling when compared with accelerator data, while the K/sup +/ spectrum is consistently above the scaling prediction. The proton spectra have pronounced peaks at x=1, minima near x=0.9 and broad maxima at x=0.6. The data are compared with triple-Regge and diffraction dissociation models. (9 refs).

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