Triple-Regge analysis of the reactions π−p→ pslow + X and π−p → πfast− + X at 147 GeV/c

doi:10.1016/0550-3213(79)90295-5

Nuclear Physics B

Volume 150, 1979, Pages 109-118

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Abstract

In this paper we present new data for the reactions π⁻p→p_slow+X⁻ and π⁻p→π_fast⁻ + X⁺ at 147 GeV/c. This is the first time that experimental information on these two processes has been obtained using the same apparatus at Fermilab energies. The triple-Regge formalism is applied to the differential cross sections dσ/dM_x² of both reactions using all the data at present available in the literature. A good description of the data is obtained when parameters from a triple-Regge fit of the reaction pp → p + X are used, together with the assumption of factorization of the pomeron and the reggeons. The equality of the dσ/dM_x² distributions of the two reactions may be explained in terms of an interesting assumption in the framework of the independent quark model and imposes an additional relation between the triple-Regge terms.

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Contribution of the inelastic correction to the differential cross section dσ/dt and the total cross section σ for p-4He and π-4He elastic scattering at high energy
1982, Physics Letters B
We have studied the influence of the inelastic correction to the differential cross section dσ/dt in the p-⁴He elastic scattering from 146 GeV to 393 GeV. We compare Glauber differential cross sections to corrected cross sections and experimental results.
We have also computed an inelastic correction Δσ for the p-⁴He and π-⁴He elastic scattering at enrgies between 40 and 400 GeV. We compare the theoretical values with the experiments ones.
Study of the inclusive reaction K-p→p+X at 32 GeV/c
1981, Nuclear Physics, Section B
In a K⁻p experiment at 32 GeV/c with a sensitivity of 6 ev/≈b the inclusive reaction K⁻p → p + X was studied in the kinematical region x < −0.3. Most of the protons in this region were identified by ionization. Correcting for losses of the very slow as well as of the fast protons in this region we obtained σ_p(x < −0.3) = 5.9 ± 0.2 mb. The double invariant differential cross sections of protons were analysed in terms of the variables x, p_T², and M²/s, t, and the contributions from separate peripheral mechanisms were analysed. A triple-Regge analysis was performed on the inclusive proton d²σ/dtd(M²/s) distribution with |t| < 1.1 GeV². The fit with an RRP term resulted in an effective trajectory for the exchanged reggeon lying somewhat lower than that for the leading meson trajectory. Inclusion in the fit of an additional ππp term showed that pion exchange is important in the triple-Regge region at small |t|.
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1980, Physical Review D
Diffractive dissociation processes in a field-theoretic quark model
1980, Physical Review D

^☆: This work is supported in part by the US Department of Energy, the National Science Foundation, and the US-Israel Binational Science Foundation.

^★★: Present address, DESY, Hamburg, West Germany.

^‡: Present address, Polytechnic Institute of New York, Brooklyn, New York.

^‡‡: Present address, Indiana University, Bloomington, Indiana.

^‡‡‡: Present address, Purdue University, West Lafayette, Indiana.

^#: Present address, Argonne National Laboratory, Argonne, Illinois.

^##: Present address, Dialog Systems, Inc., Belmont, Massachusetts.

^###: Present address, Duke University, Durham, North Carolina.

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Nuclear Physics B

Abstract

References (10)

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

Phys. Rev. Lett.

Nucl. Phys.

Phys. Lett.

Phys. Lett.

Cited by (4)

Contribution of the inelastic correction to the differential cross section dσ/dt and the total cross section σ for p-<sup>4</sup>He and π-<sup>4</sup>He elastic scattering at high energy

Study of the inclusive reaction K<sup>-</sup>p→p+X at 32 GeV/c

Inclusive ++ production in pp, K+p, +p, and -p interactions at 147 GeV/c

Diffractive dissociation processes in a field-theoretic quark model

Triple-Regge analysis of the reactions π−p→ pslow + X and π−p → πfast− + X at 147 GeV/c☆

Abstract

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

Phys. Rev. Lett.

Nucl. Phys.

Phys. Lett.

Phys. Lett.

Triple-Regge analysis of the reactions π⁻p→ p_slow + X and π⁻p → π_fast⁻ + X at 147 GeV/c☆