Dittmann, P.
Single Differential Cross Section
[2.0, 5.0]
Max results
Sort by Reverse order

Showing 10 of 249 results

Date

A secondary peak at t = −1 (GeV/c)2 in high energy π-p charge exchange scattering

Sonderegger, P. ; Kirz, J. ; Guisan, O. ; et al.
Phys.Lett. 20 (1966) 75-78, 1966.
Inspire Record 1498686 DOI 10.17182/hepdata.75504

None

23 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Forward $\pi^-p$ charge exchange scattering between 0.8 and 1.9 GeV

Borgeaud, P. ; Bruneton, C. ; Ducros, Y. ; et al.
Phys.Lett. 10 (1964) 134-137, 1964.
Inspire Record 1400914 DOI 10.17182/hepdata.31224

None

15 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Forward peak in $\pi^+$ photoproduction

Buschhorn, G. ; Heide, P. ; Kötz, U. ; et al.
Phys.Lett.B 25 (1967) 622-623, 1967.
Inspire Record 1392927 DOI 10.17182/hepdata.29549

The π+—photoproduction cross section is found to have a peak in the forward direction in disagreement with simple Regge pole models.

1 data table
Table 1

No description provided.


The charge exchange $K^- + p \to K^0 + n$ at 9.50 GeV/c

Astbury, P. ; Finocchiaro, G. ; Michelini, A. ; et al.
Phys.Lett. 16 (1965) 328-331, 1965.
Inspire Record 1389639 DOI 10.17182/hepdata.30381

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Elastic scattering and polarisation in 3.0 and 3.6 GeV/c antiproton-proton collisions

Escoubès, B. ; Fedrighini, A. ; Goldschmidt-Clermont, Y. ; et al.
Phys.Lett. 5 (1963) 132-136, 1963.
Inspire Record 1389108 DOI 10.17182/hepdata.751

None

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Study of the reaction pi- p --> omega n at 3, 8, 6 and 8 GeV/c

Apel, W.D. ; Ausländer, J. ; Müller, H. ; et al.
Phys.Lett.B 55 (1975) 111-116, 1975.
Inspire Record 1388800 DOI 10.17182/hepdata.27881

Results are given for the production differential cross sections and the ω decay angular distribution in terms of the ω spin density matrix elements.

3 data tables
Table 1

PAPER ALSO GIVES OFF-DIAGONAL ELEMENTS OF THE ERROR COVARIANCE MATRIX.

Table 2

PAPER ALSO GIVES OFF-DIAGONAL ELEMENTS OF THE ERROR COVARIANCE MATRIX.

Table 3

No description provided.


Elastic scattering, pion production, and annihilation into pions in antiproton-proton interactions at 5.7 GeV/c

Böckmann, K. ; Nellen, B. ; Paul, E. ; et al.
Nuovo Cim.A 42 (1966) 954-996, 1966.
Inspire Record 1185317 DOI 10.17182/hepdata.1061

An extensive investigation of antiproton-proton interactions at 5.7 GeV/c without strange-particle production was carried out using a hydrogen bubble chamber. Cross-sections for different channels are given and discussed. The reliability of the analysis was checked using artificially generated events. The cross-sections for elastic scattering, for all processes involving annihilation, and for all other inelastic processes are respectively σel=(16.3±0.6)mb,σannlbil=(22.5±2.0)mb, σinel=(24.8±2.0)mb. TheN * 1:38 is present both in the single and multiple pion production channels. For the reaction MediaObjects/11539_2007_Article_BF02720569_f1.jpg a cross-section of (1.05±0.21) mb was obtained. Cross-sections forN * 1238 production in other channels are also given. Some indication of the presence ofI=1/2 isobars was found in the nucleon-pion and the nucleon-two-pion systems. The inelastic nonannihilation reactions were found to be strongly peripheral. The one-pion exchange model including either a form factor or corrections for absorption was applied to the reaction MediaObjects/11539_2007_Article_BF02720569_f2.jpg . Neither version of the model could correctly account for all features of the reaction. The average number of pions in the annihilation was found to be 7.3±0.6. The presence of an asymmetry in the angular distribution of the charged pions was confirmed at this energy; it is due mostly to high-energy pions. The production of ρ and ω mesons was observed in various annihilation channels. Rates of up to 80% for ρ production and up to 15% for ω production were obtained by fitting phase-space and Breit-Wigner curves to the effective-mass distributions of different channels.

5 data tables
Table 1

No description provided.

More…

Measurement of the invariant mass distributions for the pp -> ppeta' reaction at excess energy of Q = 16.4 MeV

Klaja, P. ; Moskal, P. ; Czerwinski, E. ; et al.
Phys.Lett.B 684 (2010) 11-16, 2010.
Inspire Record 843930 DOI 10.17182/hepdata.55690

The proton-proton and proton-eta' invariant mass distributions have been determined for the pp -> ppeta' reaction at an excess energy of Q = 16.4 MeV. The measurement was carried out using the COSY-11 detector setup and the proton beam of the cooler synchrotron COSY. The shapes of the determined invariant mass distributions are similar to those of the pp -> ppeta reaction and reveal an enhancement for large relative proton-proton momenta. This result, together with the fact that the proton-eta interaction is much stronger that the proton-eta' interaction, excludes the hypothesis that the observed enhancement is caused by the interaction between the proton and the meson.

2 data tables
Table 1

Differential cross section as a function of the squared invariant mass of the proton-proton system.

Table 2

Differential cross section as a function of the squared invariant mass of the proton-etaprime system.


Differential cross section and recoil polarization measurements for the gamma p to K+ Lambda reaction using CLAS at Jefferson Lab

The CLAS collaboration McCracken, M.E. ; Bellis, M. ; Meyer, C.A. ; et al.
Phys.Rev.C 81 (2010) 025201, 2010.
Inspire Record 840934 DOI 10.17182/hepdata.54967

We present measurements of the differential cross section and Lambda recoil polarization for the gamma p to K+ Lambda reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+ p pi- and K+ p (missing pi -) final-state topologies/ results from these analyses were found to exhibit good agreement. These differential cross section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300 MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500 MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of non-resonant K+ Lambda photoproduction mechanisms at all production angles.

241 data tables
Table 1

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.62-1.63 GeV.

Table 2

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.63-1.64 GeV.

Table 3

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.64-1.65 GeV.

More…

Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV

Moskal, P. ; Czyżykiewicz, R. ; Czerwiński, E. ; et al.
Eur.Phys.J.A 43 (2010) 131-136, 2010.
Inspire Record 839339 DOI 10.17182/hepdata.54192

Proton-proton and proton-eta invariant mass distributions and the total cross section for the pp to pp eta reaction have been determined near the threshold at an excess energy of Q=10 MeV. The experiment has been conducted using the COSY-11 detector setup and the cooler synchrotron COSY. The determined invariant mass spectra reveal significant enhancements in the region of low proton-proton relative momenta, similarly as observed previously at higher excess energies of Q=15.5 MeV and Q= 40MeV.

3 data tables
Table 1

Total cross section determined from the integral of the invariant mass distribution.

Table 2

Distribution of the square of the invariant mass of the proton-proton system.

Table 3

Distribution of the square of the invariant mass of the proton-eta system.