Barberis, D.
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K- p charge exchange at 3.95 gev/c

Moscoso, L. ; Hubbard, J.R. ; Leveque, A. ; et al.
Phys.Lett.B 32 (1970) 513-514, 1970.
Inspire Record 63099 DOI 10.17182/hepdata.28711

The charge excharge reaction K − p → K 0 n has been studied in a event/μb exposure of the CERN 2m hydrogen bubble chamber to a 3.95 GeV/ c K − beam. The differential cross section d σ /d t exhibits a change of slope at −1 ≈ 0.8 GeV 2 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Study of k- pi- scattering using the reaction k- d ---> k- pi- p p(s)

Cho, Y. ; Derrick, M. ; Johnson, D. ; et al.
Phys.Lett.B 32 (1970) 409-412, 1970.
Inspire Record 63111 DOI 10.17182/hepdata.28719

Approximately 700 events of the reaction K − d → K − π − pp s produced by 5.5 GeV/ c kaons were used to measure the cross section for Kπ elastic scattering in the T = 3 2 state by a Chew-Low extrapolation. The cross section does not exceed 2.1 mb and has no structure for Kπ masses from threshold up to 2.0 GeV.

1 data table
Table 1

Chew-Low extrapolation is used for evaluation of the K- P elastic cross section.


Single photoproduction of eta-mesons on hydrogen in the forward direction at 4 and 6 gev

Braunschweig, W. ; Erlewein, W. ; Frese, H. ; et al.
Phys.Lett.B 33 (1970) 236-240, 1970.
Inspire Record 63065 DOI 10.17182/hepdata.28543

The differential cross-section of the reaction γ p→ η p has been measured at the Deutsches Elektronen Synchrotron (DESY) at mean photon energies of 4 and 6 GeV in the momentum transfer range between zero and 1.4 GeV 2 . The data show a slight maximum around t =−0.15 GeV 2 and fall off smoothly till t =−1.4 GeV 2 . There is no indication of a dip around t =−0.5 GeV 2 .

2 data tables
Table 1

Axis error includes +- 19/19 contribution.

Table 2

Axis error includes +- 19/19 contribution.


Measurement of the polarization parameter in pi+- p, k+- p, p p, and anti-p p elastic scattering at 6 gev/c

Borghini, M. ; Dick, L. ; Di Lella, L. ; et al.
Phys.Lett.B 31 (1970) 405-409, 1970.
Inspire Record 63191 DOI 10.17182/hepdata.6078

Experimental results are presented for the polarization parameter P 0 in π ± p , K ± p , pp, and p ̄ p elastic scattering at 6 GeV/ c , and in the range of the invariant four-momentum transfer squared − t from 0.05 to ∼ 2.0 (GeV/ c ) 2 .

2 data tables
Table 1

'1'. '2'. '3'. '4'.

Table 2

No description provided.


Upper limits on rare two-body processes in k- p and anti-p p scattering at high energies

Birnbaum, D. ; Edelstein, R.M. ; Hien, N.C. ; et al.
Phys.Lett.B 31 (1970) 36-39, 1970.
Inspire Record 63230 DOI 10.17182/hepdata.6079

A missing mass spectrometer search was made for several two-body, double charge exchange reactions, including backward K −p and p̄p elastic scattering at 8 and 16 GeV/ c and small momentum transfer. No examples of any of these processes were observed.

2 data tables
Table 1

'1'. '2'. '3'.

Table 2

No description provided.


ASYMMETRY IN pi+ PHOTOPRODUCTION FROM A POLARIZED TARGET AT 5-GeV AND 16-GeV

Morehouse, Charles C. ; Borghini, M. ; Chamberlain, Owen ; et al.
Phys.Rev.Lett. 25 (1970) 835, 1970.
Inspire Record 60947 DOI 10.17182/hepdata.3373

We have measured the asymmetry of the cross section for γp→π+n from a polarized target at 5 and 16 GeV. The range of four-momentum transfer was 0.02<~−t<~1.0 GeV2. The π+ mesons were produced in a polarized butanol target and detected with the Stanford Linear Accelerator Center 20−GeVc spectrometer. A sizable asymmetry was found at both 5 and 16 GeV, a typical value being -0.6 near −t=0.3 GeV2. A small amount of data on the asymmetry of other photoproduction processes was also obtained.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Angular dependence of the recoil proton polarization from the reaction $\gamma p \to \pi^0 p$ for photon energies between 360-MeV and 1200-MeV

Blum, P. ; Brinckmann, P. ; Brockmann, R. ; et al.
BONN-PI-1-105, 1970.
Inspire Record 1085812 DOI 10.17182/hepdata.70500

None

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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COMPTON SCATTERING FROM HYDROGEN BETWEEN 5-GeV AND 17-GeV

Anderson, Robert L. ; Gustavson, D. ; Johnson, J.R. ; et al.
Phys.Rev.Lett. 25 (1970) 1218, 1970.
Inspire Record 60845 DOI 10.17182/hepdata.21597

Measurements have been made on Compton scattering for photon energies between 5 and 17 GeV and t values from -0.06 to -1.1 (GeVc)2. The data were obtained by performing a coincidence between the Stanford Linear Accelerator Center 1.6-GeVc spectrometer and a Lucite shower counter. The scattering appears diffractive out to high t values, but the cross sections seem not to be in good agreement with the prediction of a strict vector-meson-dominance model.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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PHOTOPRODUCTION OF K+ HYPERON FROM HYDROGEN AND DEUTERIUM AT 11-GeV

Boyarski, A. ; Diebold, Robert E. ; Ecklund, Stanley D. ; et al.
Phys.Lett.B 34 (1971) 547-550, 1971.
Inspire Record 60853 DOI 10.17182/hepdata.5801

Using an 11-GeV bremsstrahlung beam and the SLAC 20-GeV spectrometer, we have measured K + missing mass spectra from hydrogen and deuterium at five angles with momentum transfer squared ranging from 0.025 to 0.46 GeV 2 . Steps in the spectra as a function of missing mass were found corresponding to production of Λ , Σ , Σ 1385 + Λ 1405 and Λ 1520 . The ratio Σ − and Σ 0 production is not consistent with pure isotopic spin 1 2 in the t -channel for the reaction γ N→K + Σ . The cross sections for γ N → K + Σ 1385 compared with γ N→ πΔ violate an SU(3) prediction.

4 data tables
Table 2

No description provided.

Table 3

No description provided.

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Electromagnetic proton form-factors at squared four momentum transfers between 1-GeV/c**2 and 3-GeV/c**2

Bartel, W. ; Busser, F.W. ; Dix, W.R. ; et al.
Phys.Lett.B 33 (1970) 245-248, 1970.
Inspire Record 63047 DOI 10.17182/hepdata.45284

Electron-proton elastic scattering cross sections have been measured at four-momentum transfers between 1.0 and 3.0 (GeV/ c ) 2 and at electron scattering angles between 10° and 20° and at about 86° in the laboratory. The proton electromagnetic form factors G E and G M were determined. The results indicate that G E ( q 2 ) decreases faster with increasing q 2 than G M ( q 2 ).

2 data tables
Table 1

Axis error includes +- 2.5/2.5 contribution (Due to counting statisticss, separation of elastic events, beam monitoring, incident energy, scattering angle, proton absorption, solid angle, target length and density).

Table 2

CONST(NAME=MU) is the magnetic moment.