POLARIZATION MEASUREMENTS IN K+ N CHARGE EXCHANGE AT 6-GeV/c AND 12-GeV/c

Fujisaki, M. ; Babou, M. ; Bystricky, J. ; et al.
Phys.Lett.B 80 (1979) 314, 1979.
Inspire Record 132911 DOI 10.17182/hepdata.27365

The polarization in K + n↑ → K 0 p has been measured at 6 and 12 GeV/ c in the interval 0.1 < |t| < 1.0 using a polarized deuteron target. The results are compared to predictions from SU(3), exchange degeneracy (EXD) and line reserval, and from various phenomenological models.

4 data tables

NARROW BINS.

WIDE BINS.

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The reactions $k^{+}d \to k^{+}d, k^{+}d \to k^{+}pn$ and $k^{+}d \to k^{0}pp$ at 3 Gev/$c$ with an investigation of $k^+n$ scattering

Buchner, K. ; Dehm, G. ; Geist, Walter M. ; et al.
Nucl.Phys.B 44 (1972) 110-124, 1972.
Inspire Record 75078 DOI 10.17182/hepdata.32864

As a partial result of an analysis of K + d interactions at 3 GeV/ c produced in the 81 cm Saclay bubble chamber, we present data on K + differential cross sections for the following reactions: K + d → K + d, K + d → K + pn, K + d → K 0 pp . A set of parameters describing the K + n elastic scattering has been obtained from a simulataneous fit, based on the Glauber model. to the three experimental differential cross sections and to the K + d total cross section, giving α n = 1.7 ± 0.5 GeV −2 for the slope α n of the differential cross section, and ρ n = −0.16 ± 0.3 for the ratio of the real to the imaginary part of the forward scattering amplitude. The D-wave function of the deuteron has been found to give a non-negligible contribution to the coherent reaction.

6 data tables

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K+ n charge exchange at 3.8 gev/c

Moninger, W. ; Eisenstein, Bob I. ; Kim, J. ; et al.
Phys.Rev.D 8 (1973) 38-44, 1973.
Inspire Record 81978 DOI 10.17182/hepdata.22019

We have found 431 events of the reaction K+d→K0pps at 3.8−GeVc K+ beam momentum in a 295 000-frame exposure of the Argonne National Laboratory 30-in. deuterium-filled bubble chamber. The event sample consists of one- and two-prong events with a visible K0 decaying to π+π− The total and differential cross sections are found after correction for unseen K0's and for efficiencies in the scanning-measuring-fitting chain. Comparisons of the data are made to an SU(3) sum rule, a Regge model, and data for K−p→K¯0n.

2 data tables

No description provided.

GLAUBER SCREENING AND PAULI EXCLUSION PRINCIPLE CORRECTIONS ARE REQUIRED TO YIELD THE K+ N CHARGE EXCHANGE CROSS SECTION. THE GLAUBER CORRECTION IMPLIES AN INCREASE IN THE CROSS SECTIONS BY THE FACTOR 1.016. THE PAULI CORRECTION IS SLIGHT EXCEPT AT LOW -T (<0.2 GEV**2) WHERE IT IS LARGE AND UNCERTAIN.


The reaction k+ d ---> k0 p p at 4.6 gev/c

Dehm, G. ; Geist, Walter M. ; Goebel, G. ; et al.
Nucl.Phys.B 60 (1973) 493-504, 1973.
Inspire Record 83917 DOI 10.17182/hepdata.32493

In an experiment with the CERN 2m deuterium bubble chamber the reaction K + d→K o pp (1) and the related reaction K + n→K o p (2) are studied at an incident momentum of 4.6 GeV/ c . The cross section for the latter reaction is found to be slightly larger than the cross section for the reaction K − p → K o n at the same energy. The corresponding differential cross sections agree within the rather large uncertainties. The forward amplitude for reaction (2) is predominantly real. Moreover, the total and forward differential charge exchange cross section values are compatible with those predicted on the basis of an SU (3) sum rule. A comparison of the K ± -charge exchange differential cross sections with the predictions of a Regge pole model is also presented.

2 data tables

No description provided.

SMALL -T DEUTERIUM CORRECTION APPLIED USING MC GEE WAVE FUNCTION (PAPER ALSO GIVES UNCORRECTED AND HULTHEN CORRECTED DATA).


A Comparison of K+- n Charge Exchange Reactions at 8.5-GeV/c and 13-GeV/c

Gilchriese, M.G.D. ; Dunwoodie, W.M. ; Fieguth, T.H. ; et al.
Phys.Rev.Lett. 40 (1978) 6, 1978.
Inspire Record 120363 DOI 10.17182/hepdata.20886

The cross sections for the line-reversed reaction pairs K+n→K0p and K−p→K¯0n, and K+p→K0Δ++ and K−n→K¯0Δ− have been determined with high statistics and good relative normalization at 8.36 and 12.8 GeV/c in a spectrometer experiment at Stanford Linear Accelerator Center. The cross sections for the K+-induced reactions are larger than for the K−, contrary to the expectations of weakly-exchange-degenerate Regge-pole models. The ratio of the reaction cross sections is about the same as at lower energies and shows little change with momentum transfer.

4 data tables

Axis error includes +- 11/11 contribution.

Axis error includes +- 11/11 contribution.

Axis error includes +- 11/11 contribution.

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Differential Cross-Section Measurements of K+ n --> K0 p at K+ Momenta of 0.7-GeV/c, 0.8-GeV/c and 0.9-GeV/c

Sakitt, M. ; Skelly, J. ; Thompson, J. ;
Phys.Rev.D 15 (1977) 1846, 1977.
Inspire Record 111917 DOI 10.17182/hepdata.24646

Recent interest in the low-energy kaon-nucleon system has been substantially motivated by the possible existence of an exotic positive-strangeness, isospin-zero baryon resonance. We report here measurements of the cross section and differential cross section for K+n charge-exchange scattering in our exposure of the BNL 30-inch deuterium bubble chamber to a K+ beam at 0.7, 0.8; and 0.9 GeV/c. We compare our results with previous results and with the predictions of a recently published phase-shift analysis.

2 data tables

Axis error includes +- 4.6/4.6 contribution on point 3.

No description provided.


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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