Abstract
Inclusive ϕ meson production has been measured for 100 GeV/c and 200 GeV/c incident π−,\(\bar p\) andK −, and for 120 GeV/c and 200 GeV/c incident π+,p andK +, using a Be target. A total of 630,000 ϕ mesons has been recorded in the kinematic range 0<x F <0.4. Presented are the differential cross sectionsdσ/dx F anddσ/dp T 2. The longitudinal momentum distributions show that the strange valence quarks of the incidentK mesons play an important role in ϕ meson production, even at smallx F . The decay angular distribution of the ϕ meson is evaluated in the Gottfried-Jackson frame and is expressed in the elements of the density matrix. There is a small but significant cos2 θ GJ dependence for smallp T , which decreases for increasingp T .
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ACCMOR Collaboration., Dijkstra, H., Bailey, R. et al. High statistics inclusive ϕ meson production at SPS energies. Z. Phys. C - Particles and Fields 31, 375–389 (1986). https://doi.org/10.1007/BF01588034
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DOI: https://doi.org/10.1007/BF01588034