pi+- Meson and Proton Production in Inclusive and Semiinclusive Processes in p p Interactions at 69-GeV/c. 2.

The French-Soviet collaboration Ammosov, V.V. ; Babintsev, V.V. ; Blumenfeld, H. ; et al.
Nuovo Cim.A 40 (1977) 237, 1977.
Inspire Record 108611 DOI 10.17182/hepdata.9273

We present the inclusive and semi-inclusive production of protons, π+, π−, for the full range of kinematic variables, from 7850 inelastic interactions obtained in the 4.7 m liquid-hydrogen bubble chamber Mirabelle at the Serpukhov accelerator and with an incident proton beam of 69 GeV/c. We compare the data with those at other energies, and we give the results of different phenomenological fits.

4 data tables

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A Study of Inclusive Spectra and Two Particle Correlations at Large Transverse Momentum

Busser, F.W. ; Camilleri, L. ; Di Lella, L. ; et al.
Nucl.Phys.B 106 (1976) 1-30, 1976.
Inspire Record 108294 DOI 10.17182/hepdata.8491

The inclusive production of π and η mesons at 90° from proton-proton collisions has been measured at the CERN ISR at centre-of-mass energies between 23.5 and 62.4 GeV. The momentum correlation of charged particles emitted together with a large transverse momentum pion has also been studied, using two magnetic spectrometers each centred at 90°.

11 data tables

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A Study of K- n Interactions in the Center-Of-Mass Energy Range from 1.60-GeV to 1.75-GeV

Hepp, V. ; Braun, O. ; Grimm, H.J. ; et al.
Nucl.Phys.B 115 (1976) 82-113, 1976.
Inspire Record 113914 DOI 10.17182/hepdata.8493

We present results of a K − d experiment performed with the 81 cm Saclay deuterium bubble chamber which was exposed to a K − beam at 4 momenta between 680 and 840 MeV/ c at the CERN PS. Cross sections were measured for inelastic two- and three-body K − n reactions on the basis of 5200 events/mb. Resonance production in the three-body reactions is discussed. In addition, differential cross sections and polarisations are presented for inelastic two-body reactions.

59 data tables

CROSS SECTIONS FOR TWO-BODY REACTIONS.

CROSS SECTIONS FOR THREE-BODY REACTIONS.

CROSS SECTIONS FOR K- P REACTIONS.

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K0 and Lambda Production at the CERN ISR

Busser, F.W. ; Camilleri, L. ; Di Lella, L. ; et al.
Phys.Lett.B 61 (1976) 309-312, 1976.
Inspire Record 101076 DOI 10.17182/hepdata.5534

Transverse momentum distributions of λ o , λ o , and K o , produced in pp collisions at x = 0, have obtained at the CERN ISR. The K o yield is in agreement with published K + , K − results, obtained at this centre-of-mass energy (√ s ≈44 GeV). The results on λ o and λ o production obtained in this experiment are compared with results obtained at lower centre-of-mass energies.

3 data tables

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Lambda Polarization in the Reaction K- p --> Lambda Anything at 14.3-GeV/c

Abramowicz, H. ; Barloutaud, R. ; Borg, A. ; et al.
Nucl.Phys.B 105 (1976) 222-228, 1976.
Inspire Record 100450 DOI 10.17182/hepdata.35865

New results on inclusive lambda polarization in K − p interactions at 14.3 GeV/ c are presented. At the kaon fragmentation vertex, the polarization is compared to that from inclusive experiments at lower momenta and to that from two-body reactions with a Λ. As predicted by the triple-Regge model with N α (or N γ ) exchange, the polarization is found to be independent of s and M X 2 / s . In particular it has the same value as that found in the two-body reactions.

2 data tables

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Observation of High Mass mu+ mu- Pairs at the ISR

Nagy, E. ; Regler, M. ; Schmidt-Parzefall, W. ; et al.
Phys.Lett.B 60 (1975) 96-100, 1975.
Inspire Record 100337 DOI 10.17182/hepdata.27713

Observation of 16 μ + μ − pairs of invariant mass greater than 2.7 GeV/ c 2 in the reaction pp → μ + μ − + anything at s = 52 GeV at the CERN Intersecting Storage Rings (ISR) is reported. These events can be interpreted as originating from J(3.1) decay into μ + μ − . Their p T distribution suggests a hadronic production. The cross section for J production is given and compared to the cross section for single lepton production. We conclude that J(3.1) production cannot fully account for single lepton production.

1 data table

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Line Reversal Breaking in K+- n Charge Exchange and K+- n --> K0 Delta (1236) at 4-GeV/c and 6-GeV/c

Phelan, J.J. ; Ambats, I. ; Meyer, W.T. ; et al.
Phys.Lett.B 61 (1976) 483-486, 1976.
Inspire Record 2871 DOI 10.17182/hepdata.27677

Differential cross sections for the line-reversed reaction pairs K + 0p → K o Δ ++ (1236), K − n → K ̄ o Δ − (1236) and K − p → K ̄ o n , K + n → K o p have been measured with good statistics at 4 and 6 GeV/ c . The line reversal breaking for the Δ (1236) reactions is found to have no significant variation with energy and to be larger than for the charge exchange reactions. The cross sections for all four reactions show a dip in the forward direction, indicating the importance of spin-flip amplitudes.

10 data tables

Axis error includes +- 0.0/0.0 contribution (?////OVERALL NORMALIZATION ERROR AND BACKGROUND SUBTRACTION UNCERTAINTY).

Axis error includes +- 0.0/0.0 contribution (?////OVERALL NORMALIZATION ERROR AND BACKGROUND SUBTRACTION UNCERTAINTY).

Axis error includes +- 0.0/0.0 contribution (?////OVERALL NORMALIZATION ERROR AND BACKGROUND SUBTRACTION UNCERTAINTY).

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Neutron-Deuteron Elastic Scattering from 6-GeV/c to 12.5-GeV/c

Chanowski, John P. ; Gustafson, H. Richard ; Longo, Michael J. ; et al.
Phys.Lett.B 61 (1976) 93, 1976.
Inspire Record 2825 DOI 10.17182/hepdata.27665

The differential cross section for neutron-deuteron elastic scattering was measured for four-momentum transfers 0.3 < − t < 2.0 (GeV/c) 2 with incident neutron momenta between 6 and 12.5 GeV/c. The measurement was made with spark chambers at the Argonne ZGS. Results are compared with proton-deuteron elastic scattering at comparable energies as a test of isospin invariance in strong interactions and with the predictions of the Glauber multiple scattering theory. Very good agreement is found.

8 data tables

UNPUBLISHED DATA.

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UNPUBLISHED DATA.

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Study of photoproduction on hydrogen in a streamer chamber with tagged photons for 1.6 GeV $ < E_\gamma <$ 6.3 GeV Topological and reaction cross sections

The Aachen-Hamburg-Heidelberg-Munich collaboration Struczinski, W. ; Dittmann, P. ; Eckardt, V. ; et al.
Nucl.Phys.B 108 (1976) 45-74, 1976.
Inspire Record 100089 DOI 10.17182/hepdata.35779

We have studied photoproduction using a 1 m streamer chamber at DESY and a tagged photon beam with an energy range of 1.6 GeV < E γ < 6.3 GeV. We analysed approximately 30 000 events and report topological, channel and resonance production cross sections for a large number of reactions with three and five outgoing charged particles.

29 data tables

CHANNEL CROSS SECTIONS FOR 3, 5 AND 7 PRONG REACTIONS.

'PARAMETRIZATION'.

'INTERFERENCE'.

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Observation of Structure in Elastic pp Scattering at 100-GeV/c and 200-GeV/c

Akerlof, C.W. ; Kotthaus, R. ; Loveless, R.L. ; et al.
Phys.Lett.B 59 (1975) 197-200, 1975.
Inspire Record 99993 DOI 10.17182/hepdata.27781

The elastic differential cross section for pp scattering has been measured up to a momentum transfer of ‖ t ‖ = 3(GeV/ c ) 2 at 100 GeV/c and 200 GeV/c incident momenta. The 200 GeV/ c measurements shows a diffractive like dip at ‖ t ‖ = 1.5 GeV/ c while no such dip is seen in the 100 GeV/ c data.

1 data table

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