Blocker, C.
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Polarization in elastic anti-proton-proton scattering between 0.9 and 2.5 gev/c

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 37 (1972) 349-363, 1972.
Inspire Record 75332 DOI 10.17182/hepdata.32973

Polarization and differential cross-section data are presented for elastic scattering of antiprotons on polarized protons at eight momenta between 0.9 and 2.5 GeV/ c . The data are fitted with a diffraction model.

8 data tables
Table 1

COMBINED 0.88 AND 0.95 GEV/C DATA.

Table 2

COMBINED 1.00 AND 1.04 GEV/C DATA.

Table 3

COMBINED 1.01 AND 1.055 GEV/C DATA.

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0- 1/2+ final states in k- p interactions at 3.95 gev/c

Moscoso, L. ; Hubbard, J.R. ; Leveque, A. ; et al.
Nucl.Phys.B 36 (1972) 332-344, 1972.
Inspire Record 75362 DOI 10.17182/hepdata.33015

Final states π − Σ + , π + Σ − , π o Λ and ηΛ were studied for K − p reactions at 3.95 GeV/ c . Cross sections, angular distributions and polarizations are presented. Data for π − Σ + and π o Λ production are compared to the line-reversed πp reactions at the same beam momentum. Baryon-exchange peaks are presented for the Σ + π − , Σ − π + and Λπ o final states.

10 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Anti-p p annihilation into pi+ rho- at 5 gev/c

Eide, A. ; Lehmann, P. ; Lundby, A. ; et al.
Phys.Lett.B 41 (1972) 225-228, 1972.
Inspire Record 75630 DOI 10.17182/hepdata.28228

We have measured the differential cross-section for the reaction p p → π + Λ − at 5 GeV /c , the π + being in t he cm angular range 0.47 < cos θ p π + cm < 0.98 , corresponding to 0.12 < − t < 2.40 (GeV/ c ) 2 . The angular distribution has a forward peak with a differential cross-section d σ d ω = 4.1 ± 1.6 μ b / sr for 0.94 < cos θ p π + cm < 0.96 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Interference between (p,f0 ...) and (rho0,b0,...) exchanges in pion diffraction dissociation at 16 gev/c

The Aachen-Berlin-Bonn-CERN-Heidelberg collaboration Beaupre, J.V. ; Deutschmann, M. ; Graessler, H. ; et al.
Phys.Lett.B 41 (1972) 393-396, 1972.
Inspire Record 75614 DOI 10.17182/hepdata.28235

It is found in the reactions π ± p →( π ± π + π − )p, believed to be dominated by diffraction dissociation, that the d σ d t′ distributions show a “cross-over” effect at t ′ ≈ 0.15, similar to the effect observed in elastic scattering. This gives evidence for the interference of ( ϱ 0 , B 0 ,…)-exchanges with ( P , f 0 , …) -exchanges in pion diffraction dissociation reactions. No such evidence is found for baryon dissociation, π ± p → π ± (p π + π − ), at the same energy.

8 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Multihadronic cross-sections from e+ e- annihilation at c.m. energies between 1.4 and 2.4 gev

Bacci, C. ; Penso, G. ; Salvini, G. ; et al.
Phys.Lett.B 38 (1972) 551-554, 1972.
Inspire Record 75822 DOI 10.17182/hepdata.28322

Multihadronic production has been observed at the Adone e + e − storage ring, in the c.m. energy range 1.4 - 2.4 GeV. The cross sections for the reactions e + + e − → 2 π ± + nπ o (1 ⩽ n ⩽ 4) and e + + e − → (4 π ± + nπ ± ) (0 ⩽ n ⩽ 2) have been measured, assuming that the produced particles are only pions with a pure phase space momentum distribution.

1 data table
Table 1

No description provided.


Angular distributions for single neutral pion photoproduction from neutrons at 450-800 mev

Bacci, C. ; Baldini-Celio, R. ; Esposito, B. ; et al.
Phys.Lett.B 39 (1972) 559-562, 1972.
Inspire Record 75766 DOI 10.17182/hepdata.28319

Differential cross sections for single photoproduction of neutral pion on neutron have been measured at different c.m. angles for photon energies, between 450–800 MeV.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Measurement of k*- production in the reaction k- p ---> k*- p

Blieden, H.R. ; Finocchiaro, G. ; Kirz, J. ; et al.
Phys.Lett.B 39 (1972) 668-670, 1972.
Inspire Record 75745 DOI 10.17182/hepdata.41300

The K ∗− spectrum in the reaction K − +p → K ∗− +p has been measured at beam momenta 10.9, 13.4 and 15.9 GeV/ c using the missing mass technique. Production of the L(1770), and a Q-K ∗ (1420) enhancement are observed. Differential cross sections in the range of momentum transfer 0.12 < | t pp | < 0.40 (GeV/ c ) 2 are given. The L meson is observed with a width Γ = 100 ± 26 MeV. The mass spectrum between the L and 2.5 GeV does not show significant structure.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Differential cross-sections for the reactions p p ---> d pi+ and p p ---> d rho+ in the energy range from 10 to 24 gev

Amaldi, U. ; Biancastelli, R. ; Bosio, C. ; et al.
Lett.Nuovo Cim. 4S2 (1972) 121-130, 1972.
Inspire Record 77558 DOI 10.17182/hepdata.37351

None

7 data tables
Table 1

Axis error includes +- 10/10 contribution (COMPOUNDED WITH STATISTICAL ERROR).

Table 2

Axis error includes +- 10/10 contribution (COMPOUNDED WITH STATISTICAL ERROR).

Table 3

Axis error includes +- 10/10 contribution (COMPOUNDED WITH STATISTICAL ERROR).

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Anti-p p annihilation into pi+ pi- and k+ k- at 5 gev/c

Chabaud, V. ; Eide, A. ; Lehmann, P. ; et al.
Phys.Lett.B 41 (1972) 209-212, 1972.
Inspire Record 75628 DOI 10.17182/hepdata.5626

The differential cross-sections for the annihilation processes p p→π − π + and p p→K − K + have been measured at an incident laboratory momentum at 5 GeV/ c . Strong backward and forward peaks are observed in the π + π − differential cross-sections while the K + K − cross-section is shown to have a peak only for K − going forward. The annihilation cross-sections are compared with the cross-sections for the crossed channel backward processes π ± p→p π ± and K ± p→pK ± .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


K+- p elastic scattering at 5 gev/c. evidence for a k- p backward peak

Chabaud, V. ; Eide, A. ; Lehmann, P. ; et al.
Phys.Lett.B 38 (1972) 445-448, 1972.
Inspire Record 75816 DOI 10.17182/hepdata.5729

The elastic scattering of K ± mesons on protons has been studied at 5 GeV/c. A total of about 500 000 events have been measured in the c.m. angular range 17° < θ cm < 165° corresponding to 0.2 < − t < (GeV/ c ) 2 . We observed a K − p backward peak which we have parametrized as d σ /d u = (0.6 ± 0.2) exp [(3.3 ± 0.6) u ] μb /(GeV/c) 2 , while for the K + p backward peak we find d σ /d u = (17.5 ± 1) exp [(3.6 ± 0.2) u ] μb /(GeV/c) 2 . The K − p cross-section falls to about 0.03 μ b ( GeV /c) 2 around − t = 5 (GeV/ c ) 2 , while the K + p cross-section stays in the vicinity of 0.3 μ b ( GeV /c) 2 in the same t -region. The K + p and K − p differential cross-sections have cross-over points at − t = 0.2, 1.1 and about 3.5 (GeV/ c ) 2 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.