Bintinger, D.L.
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Vector-meson electroproduction at high q-squared

Ahrens, L. ; Berkelman, Karl ; Brown, G.S. ; et al.
Phys.Rev.Lett. 31 (1973) 131-133, 1973.
Inspire Record 84487 DOI 10.17182/hepdata.47133

We have measured ρ0, ω (combined) and ϕ electroproduction over a range of virtual-photon four-momentum Q2 from 0.4 to 2.2 GeV2 and for photon energies ν from 2.7 to 8.6 GeV. We find that the slope of the t (momentum transfer) dependence of the ρ0 and ω forward peak decreases with increasing Q2 to less than half of the photoproduction slope.

1 data table
Table 1

The cross section for virtual photon are derived from E- P cross section bydividing on the virtual-photon flux factor.


Observation of three narrow neutral mesons in the vicinity of 950 mev

Cheshire, D.L. ; Jacobel, R.W. ; Lamb, R.C. ; et al.
Phys.Rev.Lett. 28 (1972) 520-523, 1972.
Inspire Record 75535 DOI 10.17182/hepdata.21441

In a scintillation-counter experiment, we have observed two narrow, neutral mesons in addition to the well-established η′ (958) in the reaction π−p→M0n at 2.4 GeVc. We observe a mass of 940.5 ± 1.7 MeV, Γ<10.4 MeV for the M0(940), and a mass of 962.9 ± 1.7 MeV, Γ<5.9 MeV for the δ0.

1 data table
Table 1

CROSS SECTION OVERALL UNCERTAINTY (APART FROM ETA PRODUCTION) ABOUT 30 PCT.


Differential cross-sections for elastic scattering of positive kaons on protons in the momentum range 0.9 to 1.9 gev/c

Charles, B.J. ; Cowan, I.M. ; Edwards, T.R.M. ; et al.
Phys.Lett.B 40 (1972) 289-292, 1972.
Inspire Record 75720 DOI 10.17182/hepdata.28271

None

1 data table
Table 1

No description provided.


DCS for π − p elastic scattering from 1.2 to 3.0 GeV/ c and phase shift analysis

Aplin, P.S. ; Cowan, I.M. ; Gibson, W.M. ; et al.
Nucl.Phys.B 32 (1971) 253-284, 1971.
Inspire Record 1104030 DOI 10.17182/hepdata.69638

Differential cross sections have been measured for π − p elastic scattering at laboratory momenta in the range 1.2 to 3.0 GeV/ c for the c.m. range 0.97 > cos θ ∗ > −0.98 . The corresponding mass range is 1.78 to 2.56 GeV/ c 2 . The data was obtained from a counter experiment in which the scattered pions and protons were detected in coincidence by arrays of scintillation counters.

31 data tables
Table 1

No description provided.

Table 2

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Table 3

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THE ANGULAR DISTRIBUTION OF THE PHOTOPRODUCTION OF POSITIVE PIONS FROM HYDROGEN BY 187-MeV GAMMA RAYS

Lewis, G.M. ; Leith, David W.G.S. ; Thomas, D.L. ; et al.
Nuovo Cim. 27 (1963) 384, 1963.
Inspire Record 8502 DOI 10.17182/hepdata.37716

The differential cross-section for π+ photoproduction from hydrogen by γ-rays of laboratory energy 187 MeV has been measured at four angles. Two identical counter systems, designed to detect low energy pions unambiguosly in intense electron and γ-ray backgrounds, were used in conjunction with a cylindrical liquid hydrogen target, of very low boil-off rate. The cross-sections at laboratory angles of 39.2°, 66.7°, 111.6°, and 134° are 7.49±0.47, 8.10±0.57, 8.36±0.61 and 9.54±0.61, ·10−30cm2/sr, respectively, where the assigned errors refer only to the relative values. The absolute cross-sections are in substantial agreement with the dispersion theory and confirm the front to back asymmetry.

1 data table
Table 1

No description provided.