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On the basis of the quark-parton picture, we derive analytically the cross sections for production of hadrons and γ rays through forward hard scattering in hadron-hadron collisions in the energy region ∼ 10 14 eV. We take account of transverse motions both of partons inside proton ( p → T )...
A study of π - d interactions at 13.2 GeV/ c has been performed using the SLAC 2-m streamer chamber with a forward-proton trigger/spectrometer. In this paper, we discuss baryon-antibaryon final states where a forward produced p p ¯ enhancement is seen near 2.1 GeV in both p p ¯ n and p p ¯ π...
We present a model based on quantum chromodynamics for calculating the production of particles containing heavy quarks. The production of heavy quarks is due to two-gluon annihilation. Soft-gluon emission is assumed to create a random-phase situation. For D , B , and K mesons we calculate...
Georgi has recently argued that our model of quasiconfinement may not be realizable in quantum chromodynamics. Though he raises very relevant issues, his arguments fail to resolve the crucial question of the nature of the transition between confining and nonconfining phases.
An investigation is made of the extent to which low-energy π N scattering is determined by the N and Δ poles and the low-energy theorems. The on-shell amplitudes are expanded in ( μ π M N ) at fixed ( ν μ π ) and ( t μ π 2 ), and it is assumed that M Δ - M N = O ( μ π ) , in contrast...
We have performed a partial-wave analysis of the reaction K - p → K S 0 π + π - n at 6 GeV/ c . We present the results of the analysis of about 4500 events in the low- t region ( | t ′ | < 0.2 Ge V 2 ) for the dominant waves in the 1200-to-2000-MeV mass range. We observe the 2 + K * ( 1430...
We present a model based on quantum chromodynamics for calculating the photoproduction of particles containing heavy quarks. The production of heavy quarks is due to photon-gluon interaction. Soft-gluon emission is assumed to create a random-phase situation. The implications for vector dominance...
It is shown that the Dalitz-Yennie version of the equivalent-photon approximation, originally established for electroproduction in the target rest frame, becomes inappropriate, to some extent, for application to γ γ collision experiments in electron storage rings, when the outgoing electrons...
Possible evidence of long-lived cosmic-ray particles with mass ≈ ( 9 2 ) m p and charge either exactly or approximately equal to unity is reported.
Various subquark models so far proposed are briefly reviewed. Classifications of leptons and quarks in the models are discussed and compared. Our spinor-subquark model of leptons and quarks in which leptons and quarks are made of three subquarks of spin ½ is discussed in detail. The possibility...
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