Date

Y*(1385) production in anti-p reactions at 5.7 gev/c

Atherton, H.W. ; Celnikier, L.M. ; Clayton, M.J. ; et al.
Nucl.Phys.B 29 (1971) 477-503, 1971.
Inspire Record 68633 DOI 10.17182/hepdata.33412

From a bubble chamber exposure in an antiproton beam at 5.7 GeV/ c yielding 13 events/μb, the final states p ̄ p → Y 1 ∗+ (1385)Λ, Y 1 ∗+ (1385)Σ + , Y 1 ∗+ (1385) Y 1 ∗+ (1385) have been isolated. We have measured the total cross section, d σ /d t , and the complete density matrix of the Y ∗ for these processes. Upper limits have been set to the forbidden reactions p ̄ p → Y 1 ∗− (1385)Σ − , Y 1 ∗− (1385) Y 1 ∗− (1385) .

35 data tables

VALUE OF PRODUCTION CROSS-SECTION IN TEXT HALVED AS INCLUDED CHARGE CONJUGATE REACTION.

VALUE OF PRODUCTION CROSS-SECTION IN TEXT HALVED AS INCLUDED CHARGE CONJUGATE REACTION.

No description provided.

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Elastic Scattering of 600-MeV Protons from H, D, He-3, and He-4

Boschitz, E.T. ; Roberts, W.K. ; Vincent, J.S. ; et al.
Phys.Rev.C 6 (1972) 457-466, 1972.
Inspire Record 79822 DOI 10.17182/hepdata.25567

The elastic scattering of 600-MeV protons from light nuclei has been studied at the National Aeronautics Space Administration Space Radiation Effects Laboratory (SREL) synchrocyclotron. Differential cross sections have been obtained for the scattering of protons from hydrogen, deuterium, helium-3, and helium-4. Polarization was measured for deuterium and He4 nuclei. The p−p cross-section data are in excellent agreement with the predictions from the Livermore phase shifts. Small-angle p−D, p−He3 elastic scattering data are compared with calculations based on the multiple-scattering theories of Watson and Glauber.

6 data tables

No description provided.

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Production and Decay Properties of f-prime (1514) in K- p Interactions at 4.2-GeV/c

The Amsterdam-CERN-Nijmegen-Oxford collaboration Barreiro, F. ; Diaz, J. ; Gay, J.B. ; et al.
Nucl.Phys.B 121 (1977) 237-250, 1977.
Inspire Record 111490 DOI 10.17182/hepdata.35514

Results are presented for the hypercharge exchange reaction K − p→ f ′(1514) Λ at a beam momentum of 4.15 GeV/ c . Total and differential cross sections have been determined. The Λ polarization and the tensor meson density matrix elements are given as a function of t ′.

3 data tables

No description provided.

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ALL EVENTS WITH 1.46<M(KS KS)<1.60GEV.


The Reactions K- p --> pi-+ Sigma+- at 4.2-GeV/c

The Amsterdam-CERN-Nijmegen-Oxford collaboration Massaro, G.G.G. ; Barlag, S. ; de Groot, A.J. ; et al.
Phys.Lett.B 66 (1977) 385-389, 1977.
Inspire Record 110532 DOI 10.17182/hepdata.27595

We present differential cross sections and the Σ + polarization for the reactions K − p → π ∓ Σ ± using data from a high statistics bubble chamber experiment at 4.2 GeV/ c incident momentum. The statistical level allows a detailed analysis of these reactions over the whole t range. Several significant structures are observed. Comparisons are made with SU(3)-related reactions; for backward production of π − Σ + such a comparison shows good evidence for Δ exchange. The exotic forward peak in K − p → π + Σ − is definitely confirmed.

7 data tables

Axis error includes +- 5/5 contribution.

Axis error includes +- 5/5 contribution.

Axis error includes +- 5/5 contribution.

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A Study of Inclusive $\Lambda$, $\Sigma^0$ and $\Sigma(1385)$ Production in $K^- p$ Interactions at 8.25-{GeV}/$c$

The Birmingham-CERN-Glasgow-Michigan State-Paris collaboration Baubillier, M ; Bloodworth, I.J ; Bossen, G.J ; et al.
Nucl.Phys.B 148 (1979) 18-40, 1979.
Inspire Record 132295 DOI 10.17182/hepdata.8128

Inclusive Λ production has been studied in K − p interactions at 8.25 GeV/ c using about 69 000 events; the total cross section is found to be 3.35 ± 0.20 mb. A comparison has been made with Σ 0 and Σ(1385) inclusive production. Their influence on the inclusive Λ production is discussed. The inclusive Λ cross section and polarization is interpreted in terms of the triple-Regge model. In the target fragmentation region an effective Regge trajectory is determined which lies closer to the K than to the K ∗ . In the beam fragmentation region the cross-section data indicate an effective Regge trajectory which corresponds to the nucleon, while the polarization data require additional Regge exchanges to be present.

8 data tables

No description provided.

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A Study of the Reactions $K^- p \to \Lambda \pi^0$, $\Lambda \eta$, $\Lambda \eta^\prime$ at 8.25-{GeV}/$c$ Incident $K^-$ Momentum

The Birmingham-CERN-Glasgow-Michigan State-Paris collaboration Al-Harran, S. ; Baubillier, M. ; Bloodworth, I.J. ; et al.
Nucl.Phys.B 183 (1981) 269-294, 1981.
Inspire Record 155276 DOI 10.17182/hepdata.34295

Differential cross sections and polarizations are presented for the reactions K − p → Λπ 0 , Λη , Λη ′ at 8.25 GeV/ c incident K − momentum. The data, which come from a high statistics experiment in the CERN 2 m bubble chamber, are compared with previous experimental results on the same reactions and with current theoretical ideas.

11 data tables

No description provided.

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PRODUCTION OF F-prime (1520) IN 8.25-GEV/C K- P INTERACTIONS

The BIRMINGHAM-CERN-GLASGOW-MICHIGAN STATE-PARIS collaboration Al- Harran, S. ; Baubillier, M. ; Bloodworth, I.J. ; et al.
Nucl.Phys.B 191 (1981) 26-38, 1981.
Inspire Record 172450 DOI 10.17182/hepdata.34233

We present results for the hypercharge exchange reaction K − p→f' λ from a high statistics experiment at 8.25 GeV/ c using the CERN 2m HBC. The total and differential cross sections have been measured; the polarisation of the Λ hyperon and the f' density matrix elements have been calculated as functions of momentum transfer. We also present detailed information on the relative strength of the natural and unnatural parity exchange contributions to the production mechanism.

5 data tables

D-WAVE RELATIVISTIC BREIT-WIGNER RESONANCE PLUS POLYNOMIAL BACKGROUND FIT.

FITTED FOR INDIVIDUAL TP BINS.

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Spin Rotation Measurements in $\pi^- p \to K^0 \Lambda$

Bell, Kenneth Watson ; Blissett, J.A. ; Broome, T.A. ; et al.
Nucl.Phys.B 222 (1983) 389-410, 1983.
Inspire Record 190232 DOI 10.17182/hepdata.33946

The first measurements of spin-rotation in meson-baryon scattering in the resonance region are presented. These measurements, for the reaction π − p → K 0 Λ , confirm the main predictions of a previous partial-wave analysis. Comments are made on resonant couplings in the reaction π − p → K 0 Λ .

4 data tables

SPIN ROTATION ANGLE MEASUREMENTS.

POLARIZATION MEASUREMENTS FROM THIS EXPERIMENT ALONE.

COMBINED WITH DATA FROM BAKER ET AL., AND SAXON ET AL., (SEE COMMENTS).

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OBSERVATION OF POLARIZATION IN DIFFRACTIVE DISSOCIATION p ---> LAMBDA0 K+ AT THE CERN ISR

Erhan, S. ; Hayes, K. ; Smith, A.M. ; et al.
62-65, 1984.
Inspire Record 202932 DOI 10.17182/hepdata.49652

None

1 data table

No description provided.


Analyzing Power Measurements of Coulomb Nuclear Interference With the Polarized Proton and Anti-proton Beams at 185 GeV/c

The E581/704 collaboration Akchurin, N. ; Carey, David C. ; Coleman, R. ; et al.
Phys.Lett.B 229 (1989) 299-303, 1989.
Inspire Record 280476 DOI 10.17182/hepdata.29782

The analyzing power A N of proton-proton, proton-hydrocarbon, and antiproton-hydrocarbon, scattering in the Coulomb-nuclear interference region has been measured using thhe 185 GeV/ c Fermilab polarized-proton and -antiproton beams. The results are found to be consistent with theoretical predictions within statistical uncertainties.

3 data tables

No description provided.

Data from hydrocarbon target.

Data from hydrocarbon target.