25 Result(s)

Article

Two-prong fitted channels at 11.7 GeV/c

A sample of 43000 two-prong events obtained at a momomentum of 11.7 GeV/c is used to determine the cross-sections of the fitted channels, and to study the reaction π⁺p→π⁺pπ⁰. We investigate in particular the quas...

D. Evans, K. Neat, C. Caso, U. Trevisan, P. Antich… in Il Nuovo Cimento A (1965-1970) (1973)

Article

An experimental study of inclusive reactions produced in π⁻p collisions at 11.2 GeV/c

An experimental analysis of the inclusive reactions 1) π⁻p→π⁻+anything, 2) π⁻p→p+anything, 3) π⁻p→π⁺+anything, 4) π⁻p→ρ⁰+anything, 5) π⁻p→Δ⁺⁺+anything is presented at 11.2 GeV/c. All invariant single-particle spe...

P. Borzatta, L. Liotta, S. Ratti, P. Daronian, A. Daudin in Il Nuovo Cimento A (1965-1970) (1973)

Article

Properties of the B-meson observed in 11 GeV/c π^±p interactions

Production and decay properties of the B-meson are studied in the reactions π^±p→B^±p at 11 GeV/c. Values for mass, width, total and differential cross-sections and spin density matrix elements are given. The spin ...

M. Afzal, D. Evans, K. P. Neat, C. Caso, F. Conte… in Il Nuovo Cimento A (1965-1970) (1973)

Article

Test of some factorization properties from the comparison of the reactions π^±p→π^± π⁺π⁻π⁰p and π^±p→π^±π⁺π⁻π⁺n at 11.5 GeV/c

The reactions π^±p→π^±π⁺π⁻π⁰p and π^±p→π^±π⁺π⁻π⁺n at 11.5 GeV/c are analysed with the aid of LPS plots. The results give a good test on factorization properties of the production amplitude for many-body processes at ...

E. Evans, K. P. Neat, G. Tomasini, G. Bassler, H. Nagel… in Il Nuovo Cimento A (1965-1970) (1973)

Article

Longitudinal phase-space analysis of the reaction π⁺p → π⁺π⁺π⁻p at 11.7 GeV/c and comparison of the reactions π^±p → π^±π⁺π⁻p at the same energy

G. Tomasini, E. Bassler, M. Sahini, P. Schilling… in Il Nuovo Cimento A (1965-1970) (1972)

Article

Longitudinal phase-space analysis of the reaction π⁺p → π⁺pπ⁺π⁻ at 11.7 GeV/c and comparison of the reactions π^±p → π^±π⁺π⁻p at the same energy

The reaction π⁺p → π⁺pπ⁺π⁻ at 11.7 GeV/c is analysed using longitudinal phase space (L.P.S.) plots with a sample of about 6000 events. The results are compared with those obtained by Kittel, Ratti and Van Hove in...

G. Tomasini, E. Bassler, M. Sahini, P. Schilling… in Il Nuovo Cimento A (1971-1996) (1972)

Article

Analysis of the reaction π⁺p → ρ⁰Δ⁺⁺ at 11.7 GeV/c incident momentum

A model-independent analysis is made to determine the relative contribution of natural and unnatural parity exchange in the reactions (1) π⁺p→ρ⁰Δ⁺⁺ at 11.7 GeV/c and (2) π⁻p→ρ⁰n at 11 GeV/c. A simple evasive Regg...

R. O. Maddock, G. F. Pinter, C. Caso, D. Teodoro… in Il Nuovo Cimento A (1965-1970) (1971)

Article

Analysis of the reaction π⁺p → ρ⁰Δ⁺⁺ at 11.7 GeV/c incident momentum

The difficulty in determining the total and the differential cross-sections of the double-resonance process π⁺p → ρ⁰Δ⁺⁺ is discussed and a method of determining these is given which involves only few theoretical ...

R. O. Maddock, G. F. Pinter, D. Evans, C. Caso, F. Conte… in Il Nuovo Cimento A (1965-1970) (1971)

Article

Evidence for the existence of the A₁(1070) and some other structures observed in π⁻p collisions at 11.2 GeV/c

C. Caso, F. Conte, G. Tomasini, D. Cords… in Lettere al Nuovo Cimento (1969-1970) (1970)

Article

Quasi-three-body states produced in π⁻p collisions at 11.2 GeV/c and the double Regge-pole model

The reactions π⁻p→ϱ⁰π⁻p, π⁻p→f⁰π⁻p, π⁻p→π⁻π⁻Δ⁺⁺ are studied at 11.2 GeV/c and analysed in term of a double Regge-pole model as proposed by chan, Kajantie and Ranft. The diffractive parametersa, b are determined f...

C. Caso, F. Conte, G. Tomasini, D. Cords, P. von Handel… in Il Nuovo Cimento A (1965-1970) (1970)

Article

Application of a Reggeized multiperipheral model to π⁻p interactions at 11 GeV/c

We use the modified multi-Regge model by Chan, Łoskiewiez and Allison (CLA) to calculate one-particle distributions of transverse and longitudinal momenta,p _t andp _l ^* ...

C. Caso, F. Conte, G. Tomasini, E. Bassler, D. Cords… in Il Nuovo Cimento A (1965-1970) (1970)

Article

Decay modes and quantum numbers of the resonance π(1640) produced in 11 GeV/c π-p interactions

C. Caso, F. Conte, G. Tomasini, A. Cantore… in Lettere al Nuovo Cimento (1969-1970) (1969)

Article

Some aspects of the reaction π⁻p → nπ⁺π⁻ at 11 GeV/c

In this paper we present an analysis of 1268 π⁻p → nπ⁺π⁻ interactions obtained in the 1.5 m BNHBC and in the 2 m CERN HBC exposed at the CERN proton-synchrotron to a π⁻ beam of 11 GeV/c momentum. The total cross-...

C. Caso, F. Conte, P. Benz, D. Cords, P. Schilling… in Il Nuovo Cimento A (1965-1970) (1969)

Article

Study of π⁻π⁻ elastic scattering in the reaction \(\pi ^ - p \to \mathcal{N}^{ * + + } \pi ^ - \pi ^ - \) at 11 GeV/cat 11 GeV/c

We present experimental data on the reaction \(\pi ^ - p \to \mathcal{N}^{ * + + } \pi ^ - \pi ^ - \) For event...

C. Caso, F. Conte, G. Tomasini, P. Dittmann, G. Drews… in Il Nuovo Cimento A (1965-1970) (1968)

Article

Analysis of 3π and 4π systems with Mass around 1.7 GeV/c² produced by π^-p collisions at 11 GeV/c

C. Caso, F. Conte, G. Tomasini, D. Cords, J. Diaz… in Il Nuovo Cimento A (1965-1970) (1968)

Article

Analysis of A₁ and A₂ production in π^-p collisions at 11 GeV/ccollisions at 11 GeV/c

Production of the A₁ and A₂ mesons is observed in the π⁺π^-π^- mass distribution of the reaction π^-p → π^-pπ⁺π^-. Comparison of this mass distribution and in general of this reaction with OPEM calculations shows that...

F. Conte, G. Tomasini, D. Cords, P. Dittmann… in Il Nuovo Cimento A (1965-1970) (1967)

Article

Cross-sections for \(\eta ^ - p\) reactions at 11 GeV/c and theirt-dependencereactions at 11 GeV/c and theirt-dependence

C. Caso, G. Tomasini, P. Dittmann, G. Drews… in Il Nuovo Cimento A (1965-1970) (1967)

Article

π⁺p interactions at 1.6 GeV/c

We report a systematic study of π⁺p interactions at 1.59 GeV/c in the Saclay HBC 1801 at Saturne. The two-prong reactions enabled us to study ρ⁺ and ...

P. Daronian, A. Daudin, M. A. Jabiol, C. Lewin… in Il Nuovo Cimento A (1965-1970) (1966)

Article

Elastic π⁺p Scattering at 1.6 GeV/c

The c.m. angular distribution of π⁺p elastic scattering at 1.6 GeV/c shows a strong forward diffraction peak decreasing exponentially with a slopeA ₊ = (6.9±0.5) GeV⁻² comparable to thatA ₋ = (7.2±0.5) GeV⁻² obse...

A. Daudin, M. A. Jabiol, C. Kochowski, C. Lewin… in Il Nuovo Cimento (1955-1965) (1964)

Article

π-p interactions at 1.59 GeV/c

Report on the investigation of interactions in π⁻p collisions at a pion momentum of 1.59 GeV/c, by means of the 50 cm Saclay liquid hydrogen bubble chamber, operating in a magnetic field of 17.5 kG. The results o...

J. Alitti, J. P. Baton, A. Berthelot, A. Daudin, B. Deler… in Il Nuovo Cimento (1955-1965) (1963)