REACTION K+ P ---> K N PI PI AT 4.27-GeV/c INCIDENT MOMENTUM

Gelfand, N.M. ; Lasinski, B. ; Leary, P. ; et al.
Phys.Rev.D 26 (1982) 2973-2978, 1982.
Inspire Record 184512 DOI 10.17182/hepdata.23895

The cross sections for K+p interactions at a center-of-mass energy of 3 GeV (4.3 GeV/c incident momentum) have been determined for the K+pπ+π−, K0pπ+π0, and K0π+π+n final states. The shape of the differential cross section dσdt′ for the quasi-two-body final state K*0(890)+Δ++(1236) is not a single exponential. Characteristics of the low-mass Kππ and pππ enhancements are discussed.

2 data tables

No description provided.

DECAY MOMENTS OF THE K*0 AND DEL++.


A Study of Deep Inelastic Hadron - Hadron Collisions with a Large Acceptance Calorimeter Trigger

The Bari-Cracow-Liverpool-Munich-Nijmegen collaboration De Marzo, C. ; De Palma, M. ; Distante, A. ; et al.
Phys.Lett.B 112 (1982) 173-177, 1982.
Inspire Record 176541 DOI 10.17182/hepdata.34014

Large transverse energy cross sections of 300 GeV/ c pions and protons on hydrogen have been measured with a segmented calorimeter covering the central rapidity region −0.88 < y < 0.67 and 2 π in azimuth. The selected events show large multiplicities and no jet-like event structure. Processes more complicated than the scattering of two constituents appear to dominate these inelastic collisions.

8 data tables

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Inclusive Vector - Meson Production in the Central Region of $p p$ Collisions at $\sqrt{s}=63$-{GeV}

The Axial Field Spectrometer collaboration Akesson, T. ; Albrow, M.G. ; Almehed, S. ; et al.
Nucl.Phys.B 203 (1982) 27, 1982.
Inspire Record 176735 DOI 10.17182/hepdata.34135

Production of ϱ 0 , K ∗0 , K ∗0 , and φ have been measured in proton-proton collisions at the CERN Intersecting Storage Rings (ISR) at low p T in the central region. The transverse mass spectra are well described by exp (− aμ T ), with a = −6.4±0.2 GeV −1 . The cross sections for d σ/ d y| y=0 are 6.5±0.8±1.2 mb for ϱ 0 , 1.9±0.3±0.3 mb for K ∗) , 1.9±03±03 mb for K ∗0 , and 60.±0.12±0.13 mb for φ , where the first error is statistical and the second is sytematic.

2 data tables

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SEARCH FOR NONSTRANGE BARYONIUM STATES IN THE BARYON EXCHANGE REACTION K- P ---> Y0 ANTI-P P AT 18.5-GeV/c

The BARI-BIRMINGHAM-CERN-MILAN-PARIS-PAVIA collaboration Armstrong, T. ; Baubillier, M. ; Beusch, W. ; et al.
Nucl.Phys.B 206 (1982) 185-192, 1982.
Inspire Record 184140 DOI 10.17182/hepdata.34058

Narrow baryonium production in the baryon exchange reactions K − p → Λ p p and K − p → pK − p p at 18.5 GeV/ c is investigated in a 12 events/nb experiment performed at the CERN Ω′ spectrometer. No narrow structure is observed in the p p mass spectra. Upper limits for production of baryonium states are given as a function of p p mass.

2 data tables

'1'. (AP P) SYSTEM PRODUCED IN BACKWARD DIRECTION IN THE CMS.

'1'. (AP P) SYSTEM PRODUCED IN BACKWARD DIRECTION IN THE CMS.


RADIATIVE WIDTH OF THE A2 (1310)

The FERMILAB-MINNESOTA-ROCHESTER collaboration Cihangir, S. ; Berg, D. ; Biel, J. ; et al.
Phys.Lett.B 117 (1982) 119-122, 1982.
Inspire Record 182836 DOI 10.17182/hepdata.30869

Using the Primakoff formalism, we have extracted the radiative decay width of the A + 2 (1310) produced in coherent interactions of 200 GeV/ c π + mesons in nuclear targets. The width obtained is 295 ± 60 keV, a value consistent with quark-model predictions.

4 data tables

NUMERICAL DATA IN FIGURE SUPPLIED BY S. CIHANGIR.

NUMERICAL DATA IN FIGURE SUPPLIED BY S. CIHANGIR.

NUMERICAL DATA IN FIGURE SUPPLIED BY S. CIHANGIR.

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RADIATIVE WIDTH OF THE K*+ (1430).

The FERMILAB-MINNESOTA-ROCHESTER collaboration Cihangir, S. ; Berg, D. ; Biel, J. ; et al.
Phys.Lett.B 117 (1982) 123-125, 1982.
Inspire Record 184277 DOI 10.17182/hepdata.30878

Using the Primakoff formalism, we have extracted the radiative decay width of the K ∗+ (1430) produced in coherent interactions of 200 GeV/ c K + mesons in nuclear targets. The width obtained is 240 ± 45 keV, a value reasonably consistent with quark-model predictions.

1 data table

No description provided.


Study of $e^+ e^- \to K^0_S K^\pm \pi^\mp$ in the 1.4-{GeV} to 2.18-{GeV} Energy Range: A New Observation of an Isoscalar Vector Meson $\phi^\prime$ (1.65-{GeV})

Mane, F. ; Bisello, D. ; Bizot, J.C. ; et al.
Phys.Lett.B 112 (1982) 178-182, 1982.
Inspire Record 176801 DOI 10.17182/hepdata.30954

First measurements of the e + e − → K S 0 K ± π ∓ reaction in the 1.4–2.18 GeV energy range have been performed with the magnetic detector DM1 at the Orsay storage rings DCI. The cross section is rather large. The production is mainly K ∗0 K 0 which reveals an interference between isovector and isoscalar amplitudes. These results show again the existence of an isoscalar vector at 1.65 GeV shown to be a φ ′ meson.

1 data table

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ELASTIC PROTON DEUTERON BACKWARD SCATTERING AT ENERGIES FROM 0.6-GEV TO 2.7-GEV

Berthet, P. ; Frascaria, R. ; Combes, M.P. ; et al.
J.Phys.G 8 (1982) L111-L116, 1982.
Inspire Record 182842 DOI 10.17182/hepdata.38562

None

6 data tables

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CHARGED PARTICLE AND PI0 MULTIPLICITY DISTRIBUTIONS AND THE ANNIHILATION PROPERTIES OF ANTI-P P INTERACTIONS AT 70-GeV/c

Dumont, J.J. ; Lemonne, J. ; Vanhomwegen, G. ; et al.
Z.Phys.C 13 (1982) 1-9, 1982.
Inspire Record 179759 DOI 10.17182/hepdata.16433

The elastic and inelastic\(\bar p\)p cross sections at 70 GeV/c have been determined in an experiment performed at CERN using BEBC equipped with a TST. The topological cross sections were measured and the moments of the inelastic multiplicity distribution are 〈nc〉=6.16±0.09, 〈nc〉/D=2.04±0.05 andf2cc=2.97±0.03. The average number of Dalitz pairs per inelastic event is (3.12±0.09)×10−2. Assuming that these all arise from π0 decay the average π0 multiplicity is\(\langle n_{\pi ^0 } \rangle= 2.71 \pm 0.14\). The\(\bar p\)p−pp cross section differences lead to an annihilation cross section σA = 4.42±0.41 mb and the moments of the annihilation multiplicty distribution are 〈nA〉=8.0±0.3, 〈nA〉/D=2.5±0.2 andf2A−−=−1.4±0.3. An independent check of σA was made by investigating fast forward charged and neutral secondary interactions in the TST and in the surrounding neon-hydrogen mixture, and gives a value σA = 5.0±1.6 mb. The ratio of fast\(\bar n\) to\(\bar p\) production in non-annihilation interactions at 70 GeV/c is found to be 0.45±0.11.

9 data tables

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INELASTIC TOPOLOGICAL CROSS SECTIONS. NORMALIZED TO TOTAL INELASTIC CROSS SECTION OF 35.7 +- 0.5 MB (AYRES ET AL., PR D15, 3105).

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Comparison of $p \bar{p}$ and $p p$ Interactions at $\sqrt{s}=53$-{GeV}

The UA5 collaboration Alpgard, K. ; Ansorge, R.E. ; Asman, B. ; et al.
Phys.Lett.B 112 (1982) 183-188, 1982.
Inspire Record 176647 DOI 10.17182/hepdata.30953

Results are presented from the first p p colliding beam runs at the CERN ISR, using the UA5 streamer chamber detector. p p interactions at s = 53 GeV are compared with pp data taken in the same experiment. The results are in good agreement with extrapolations of low-energy p p data.

5 data tables

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MOMENTS OF MULTIPLICITY DISTRIBUTIONS FOR P P AND P AP. MULT(NAME=DQ) IS <(N-<N>)**Q>**1/Q. MULT(NAME=NQ) IS <N**Q>.

Data read from plot.

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