HEPData Search

About 15 000 K − Φp events have been collected in the CERN Ω′ spectrometer. A partial-wave decomposition of the K − Φ system is performed. The 1 + SO + wave is dominant. The 0 − P0 + and 2 − P0 + waves are important and show resonant behaviour at ∼ 1.83 GeV (Γ ∼ 0.25 GeV) and ∼ 1.73 GeV (Γ ∼ 0.22 GeV) respectively. The first one can be interpreted as the second radial excitation of the kaon while the second one can be identified as one of the two L mesons.

2 data tables

Table 1

No description provided.

Table 2

PARTIAL WAVE AMPLITUDE SHOWING POSSIBLE EXISTENCE OF L MESON AT 1.73 GEV (WIDTH = 0.22 GEV) AND RADIAL EXCITATION OF THE KAON AT 1.83 GEV (WIDTH = 0.25 GEV).

Large Transverse Momentum Particle Production in $\alpha \alpha$ and $p p$ Collisions at the {CERN} {ISR}

The Axial Field Spectrometer collaboration Akesson, T. ; Albrow, M.G. ; Almehed, S. ; et al.

Nucl.Phys.B 209 (1982) 309-320, 1982.

Inspire Record 178882 DOI 10.17182/hepdata.34016

The production of charged hadrons with high p T in αα collisions at √ s =126 GeV and pp collisions at √ s =31 and 63 GeV is compared, and the structure of the events associated with the high- p T particles is studied. The probability of finding associated particles close to the trigger particle increases strongly between √ s =31 and 63 GeV for pp collisions. For p T >2.5GeV/ c the αα/pp cross section ratio at the same energy per nucleon is measured to be 18.7 ± 2.0, to be compared with A 2 = 16, and a higher associated multiplicity is observed for αα.

1 data table

Table 1

FIRST PP DATA IS AT SQRT(S)=31 AND THE SECOND PP DATA IS AT 63 GEV.

A Measurement of the Inclusive Cross-section of Charged Pions at Very High Transverse Momenta

The CERN-Dortmund-Heidelberg-Warsaw collaboration Drijard, D. ; Fischer, H.G. ; Frehse, H. ; et al.

Nucl.Phys.B 208 (1982) 1-11, 1982.

Inspire Record 178573 DOI 10.17182/hepdata.30565

The inclusive cross sections for the production of high transverse momentum π + and π − mesons in proton-proton interactions have been measured at the highest ISR energy √ s = 63 GeV and at a c.m. production angle of 50°. The cross sections for π + and π − mesons are compared as a function of transverse momentum. It is shown that the inclusive cross section of π − mesons decreases faster than the π + cross section. particle σ ( π ± )/ σ (charged particles) are presented as a function of transverse momentum.

1 data table

Table 1

rivet Analysis
The Hadronic Cross-section of Electron - Positron Annihilation at 9.5-{GeV} and the $\Upsilon$ and $\Upsilon^\prime$ Resonance Parameters

Albrecht, H. ; Childers, R. ; Darden, C.W. ; et al.

Phys.Lett.B 116 (1982) 383-386, 1982.

Inspire Record 178613 DOI 10.17182/hepdata.30881

The reaction e + e − → hadrons has been measured in the ϒ and ϒ′ region using the DASP detector at the DESY storage ring DORIS. The following final results are obtained: R had (9.5 GeV)=3.73±0.16±0.28, Γ ee ( ϒ )=(1.23 ± 0.08 ± 0.12) keV, B μμ ( ϒ )=(3.2±1.3±0.3)%, Γ ee Γ had Γ tot (ϒ′)=(0.55±0.11 ±0.06) keV , and M ( ϒ ′)− M ( ϒ )=(556 ±10) MeV.

2 data tables

Table 1

CROSS SECTION AROUND UPSILON AND UPSILON PRIME.

Table 2

No description provided.

Production of $\gamma$ Quanta and Neutral Strange Particles in $d$ Ta and C Ta Interactions at 4.2-{GeV}/$c$ Per Nucleon

The Baku-Belgrade-Bucharest-Varna-Warsaw-Dubna-Yerevan-Kishinev-Moscow- Prague-Sofiya-Tbilisi-Ulan Bator collaboration Akhababian, N. ; Baatar, Ts. ; Baldin, A.M. ; et al.

Sov.J.Nucl.Phys. 37 (1983) 738, 1983.

Inspire Record 179220 DOI 10.17182/hepdata.39602

None

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Inclusive $\phi$ Production in $K^+ p$ Interactions at 70-{GeV}/$c$

The Brussels-CERN-Genoa-Mons-Nijmegen-Serpukhov collaboration Barth, M. ; De Clercq, C. ; De Wolf, E.A. ; et al.

Phys.Lett.B 117 (1982) 267-271, 1982.

Inspire Record 178885 DOI 10.17182/hepdata.41158

We present results on inclusive φ meson production in K + p interactions at 70 GeV/ c in the kaon fragmentation x >0.2 region. Comparison with other data on φ meson production in K ± and p induced reactions provides evidence that the strange valence-quark fragmentation or recombination processes play the dominant role in the K ± → φ transitions. Arguments are presented that the kaon valence strange s -quark carries a much higher momentum fraction than the u-quark. Evidence for the previously observed narrow φπ + state at mass ∼2.1 GeV is discussed.

4 data tables

Table 1

Table 2

Table 3

More…

Inclusive $\bar{\Lambda}$ Polarization in $K^+ p$ Interactions at 32-{GeV}/$c$ and 70-{GeV}/$c$

The Soviet-CERN collaboration Azhinenko, I.V. ; Amaglobeli, N.S. ; Baland, J.F. ; et al.

Phys.Lett.B 121 (1983) 183, 1983.

Inspire Record 179546 DOI 10.17182/hepdata.41221

We present results on the inclusive polarization of Λ hyperons produced in K + p interactions at 32 and 70 GeV/ c . A large positive Λ polarization is observed in the kaon fragmentation region. The polarization is energy independent, increases strongly with increasing x , but shows essentially no p T -dependence.

8 data tables

Table 1

Table 2

Table 3

More…

A Study of $K^+ p$ Elastic Scattering and the Reaction $K^+ p \to K^+ p \pi^+ \pi^-$ at 70-{GeV}/$c$

The Brussels-Genoa-Mons-Nijmegen-Serpukhov-CERN collaboration Barth, M. ; Wolf, A.E. De ; Johnson, D.P. ; et al.

Z.Phys.C 16 (1982) 111, 1982.

Inspire Record 181354 DOI 10.17182/hepdata.41205

Results are presented onK+p elastic scattering and on the reactionK+p→K+pπ+π− at 70 GeV/c. For the

9 data tables

Table 1

Table 2

Table 3

More…

rivet Analysis
Measurement of $s d \sigma$ / Dx for Hadron Production by $e^+ e^-$ Annihilation at $\sqrt{s}=5$.2-{GeV}, 6.5-{GeV} and 29.0-{GeV}

Patrick, J.F. ; Luth, V. ; Siegrist, J. ; et al.

Phys.Rev.Lett. 49 (1982) 1232, 1982.

Inspire Record 178416 DOI 10.17182/hepdata.20599

Measurements are presented of the inclusive charged-particle cross sections s dσdx for e+e− annihilation at center-of-mass energies of 5.2, 6.5, and 29.0 GeV. Significant scale breaking is observed in these cross sections.

1 data table

Table 1

CROSS SECTION S*D(SIG)/DX FOR CHARGED PARTICLES AT SQRT(S) = 5.2, 6.5 AND 29.0 GEV. NUMERICAL VALUES OF DATA TAKEN FROM THESIS OF J.F. PATRICK LBL-14585.

Date

Collaboration

Subject_areas

Phrases

Reactions

Observables

CM Energies (GeV)

Authors Reset

THE STUDY OF DIFFRACTIVE DISSOCIATION IN THE REACTION anti-p p ---> anti-p p pi+ pi- AT 22.4-GeV/c

A Partial Wave Analysis of the $K^- \phi$ System Produced in the Reaction $K^- p \to K^+ K^- K^- p$ at 18.5-{GeV}/$c$

Large Transverse Momentum Particle Production in $\alpha \alpha$ and $p p$ Collisions at the {CERN} {ISR}

A Measurement of the Inclusive Cross-section of Charged Pions at Very High Transverse Momenta

rivet Analysis
The Hadronic Cross-section of Electron - Positron Annihilation at 9.5-{GeV} and the $\Upsilon$ and $\Upsilon^\prime$ Resonance Parameters

Production of $\gamma$ Quanta and Neutral Strange Particles in $d$ Ta and C Ta Interactions at 4.2-{GeV}/$c$ Per Nucleon

Inclusive $\phi$ Production in $K^+ p$ Interactions at 70-{GeV}/$c$

Inclusive $\bar{\Lambda}$ Polarization in $K^+ p$ Interactions at 32-{GeV}/$c$ and 70-{GeV}/$c$

A Study of $K^+ p$ Elastic Scattering and the Reaction $K^+ p \to K^+ p \pi^+ \pi^-$ at 70-{GeV}/$c$

rivet Analysis
Measurement of $s d \sigma$ / Dx for Hadron Production by $e^+ e^-$ Annihilation at $\sqrt{s}=5$.2-{GeV}, 6.5-{GeV} and 29.0-{GeV}