Multiple-Production Theory Via Toller Variables

Bali, Naren F.; Chew, Geoffrey F.; Pignotti, A.

doi:10.1103/physrevlett.19.614

Cited by 129 publications

(28 citation statements)

References 7 publications

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“…This is called the m.ultiRegge lim.it. (Bali, Chew, and Pignotti, 1967) For exam.ple for B 6 we can consider Making the change of variables (Bardakci and Ruegg, 1969) 1 -u. = exp {z. la .…”

Section: _147-mentioning

confidence: 99%

Review of Recent Work on Narrow Resonance Models

Sivers

Yellin

1971

Rev. Mod. Phys.

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“…This is called the m.ultiRegge lim.it. (Bali, Chew, and Pignotti, 1967) For exam.ple for B 6 we can consider Making the change of variables (Bardakci and Ruegg, 1969) 1 -u. = exp {z. la .…”

Section: _147-mentioning

confidence: 99%

Review of Recent Work on Narrow Resonance Models

Sivers

Yellin

1971

Rev. Mod. Phys.

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“…6 the differential distribution dσ /dp 2 t for ρ mesons is shown. It exhibits two distinctly different exponential slopes, b 1 = 25.0 ± 6.1 GeV −2 and b 2 = 3.28 ± 0.31 GeV −2 -a feature known to be a characteristic for DPP reactions [1].…”

Section: H1 Preliminarymentioning

confidence: 99%

“…The values of slopes are characteristic for double peripheral processes [1] in which an exchange of two Regge trajectories is involved.…”

Section: H1 Preliminarymentioning

confidence: 99%

“…In the Regge framework the events of such class are explained by the diagram shown in Fig. 1a which involves an exchange of two Regge trajectories in the process 2 → 3, known as Double Peripheral Process (DPP), or Double-Regge-pole exchange reaction [1]. Events of this type are modelled by the two-step Monte Carlo generator POMPYT [2] in which the virtual pion is produced at the proton vertex according to one of the available pion flux parametrisations.…”

Section: Introductionmentioning

confidence: 99%

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Exclusive Photoproduction of Rho Meson with Leading Neutron at HERA

Levonian¹

2014

Proceedings of XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2014)

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The first measurement of exclusive photoproduction of ρ 0 mesons associated with leading neutrons at HERA is presented. The data are taken with the H1 detector in the years 2006-2007 at √ s = 319 GeV and correspond to an integrated luminosity of 1.16 pb −1 . ρ 0 mesons are reconstructed from their decays to pions in the central tracking chamber, while leading neutrons carrying a large fraction of the incoming proton momentum, x L > 0.35, are detected in the Forward Neutron Calorimeter. The phase space of the measurement is defined by the photon virtuality Q 2 < 2 GeV 2 , the total energy of the photon-proton system 20 < W γp < 100 GeV and the polar angle of the leading neutron, θ n < 0.75 mrad. The cross section of the reaction γ p → ρ 0 nY , where Y is a small mass system escaping undetected in the proton direction, is measured as a function of the neutron energy, of the effective mass of the π + π − system as well as of the transverse momentum squared, p 2 t , and of the pseudorapidity η of ρ meson. The data are interpreted in terms of the double peripheral process, involving pion exchange at the proton vertex followed by elastic photoproduction of a ρ meson on the virtual pion. In the framework of OPE approach elastic cross section of photon-pion scattering, σ el (γπ + → ρ 0 π + ) at average energy W γπ = 22 GeV is extracted.

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“…(2) In ~i), the subscript refers to the region of phase space, ~l' corresponding to this ordering of particles; while the superscript indicates that only the leading pole was retained in each expansion. of ~i' to another, Mj, of ¢.…”

mentioning

confidence: 99%