Bergsma, F.
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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
Table 1

No description provided.


rivet Analysis
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
Table 1

No description provided.


OBSERVATION OF SIGMA*+ (1385) rho0 (770) NARROW BOUND STATE WITH MASS 2.26-GeV +- 0.02-GeV IN K- p INTERACTIONS AT 32-GeV/c

Bogolyubsky, M.Yu. ; Bryukhanova, T.M. ; Bumazhnov, V.A. ; et al.
IFVE-82-59, 1982.
Inspire Record 178550 DOI 10.17182/hepdata.41129

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


A Study of Two Photon Production of Two-body Final States With Invariant Mass Greater Than 2.0-{GeV}

The PLUTO collaboration Berger, Christoph ; Genzel, H. ; Grigull, R. ; et al.
Nucl.Phys.B 202 (1982) 189-200, 1982.
Inspire Record 176691 DOI 10.17182/hepdata.34157

We have measured the electron, muon, and charged-hadron pair production rates in two-phonon interactions for invariant masses above 2.0 GeV over a large of momentum transfer. The cross sections for electron and muon pairs show good agreement with the QED predictions at both small and large momentum transfer. The observed rate of hadron production is less than 6% of the rate that QED predicts for point-like hadrons, consistent with recent leading-order QCD calculations.

5 data tables
Table 1

LOW Q**2 CROSS SECTIONS.

Table 2

DIFFERENTIAL CROSS SECTIONS IN THE INVARIANT MASS FOR MUON AND ELECTRON PAIRS IN THE UNTAGGED, LOW Q**2 REGION.

Table 3

HIGH Q**2 CROSS SECTIONS.

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rivet Analysis
A Measurement of the Reaction $e^+ e^- \to e^+ e^- \eta^\prime$ and the Radiative Width $\Gamma (\eta^\prime \to \gamma \gamma$) at {PETRA}

The JADE collaboration Bartel, W. ; Cords, D. ; Dittmann, P. ; et al.
Phys.Lett.B 113 (1982) 190-194, 1982.
Inspire Record 177090 DOI 10.17182/hepdata.30958

The reaction e + e - → e + e - η' has been observed in the JADE experiment at PETRA, by detecting the final state π + π - γ, resulting from the decay η' → γϱ 0 . The cross section was measured at an average beam energy of 17.15 GeV to be σ(e + e - → e + e - η') = 2.2 ± 0.2 (stat.) ± 0.4(syst.) nb, yielding the radiative width Γ η'γγ = 5.0 ± 0.5(stat.) ± 0.9 (syst.) keV.

1 data table
Table 1

No description provided.


Study of the Reactions $e^+ e^- \to \rho \eta$, $\rho \pi$, $\phi \pi$ and $\phi \eta$ for Total Energy Ranges Between 1.4-{GeV} and 2.18-{GeV}

Delcourt, B. ; Bisello, D. ; Bizot, J.C. ; et al.
Phys.Lett.B 113 (1982) 93, 1982.
Inspire Record 176802 DOI 10.17182/hepdata.30917

The reactions e + e − → ρη , ρπ , φπ and φη have been studied with the magnetic detector DM1 at DCI in the total energy ranges between 1.4 and 2.18 GeV. The ρη signal is clearly seen. Upper limits for ρπ and φη channels as well as for the OZI forbidden φπ channel.

4 data tables
Table 1

No description provided.

Table 2

UPPER LIMIT TO SIG AS EXPLAINED IN SYSTEMATICS.

Table 3

UPPER LIMIT TO CROSS SECTION AT CL=90 PCT.

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Inclusive Strange Resonance Production in $p p$, $\pi^+ p$ and $K^+ p$ Interactions at 147 GeV/c

Brick, D. ; Rudnicka, H. ; Shapiro, A.M. ; et al.
Phys.Rev.D 25 (1982) 2248-2258, 1982.
Inspire Record 176545 DOI 10.17182/hepdata.23976

We have studied the inclusive production of K*±(890) and Y*±(1385) in pp, π+p, and K+p interactions at 147 GeV/c. The experiment used the Fermilab 30-inch hydrogen bubble chamber with the hybrid spectrometer system. Results are based on a sample of 1916 observed KS and 932 observed A. Inclusive cross sections are given for K*± and Y*± production from the three beams, and comparisons are made with experiments at other energies. Feynman-x and transverse-momentum-squared distributions are also calculated. The results suggest that the K*− is entirely produced in the central region, while the K*+ includes a component from beam fragmentation. Comparisons are made with the additive quark model.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurement of the Neutral Current to Charged Current Ratio for Anti-neutrinos Proton Inclusive Scattering

Carmony, D.D. ; Carman, T.S. ; Barnes, V.E. ; et al.
Phys.Rev.D 26 (1982) 2965, 1982.
Inspire Record 11799 DOI 10.17182/hepdata.23944

The Fermilab wide-band antineutrino beam incident on the hydrogen-filled 15-foot bubble chamber was used to study ν¯p neutral-current interactions. The u=x(1−y) distribution is presented for both the neutral- and the charged-current data sample. Fitting the neutral-current u distribution to the prediction of a simple quark-parton model measures the Weinberg angle. By using recent measurements of the neutral-to-charged-current cross-section ratio for νp interactions (Rp), we find the corresponding ratio for ν¯p interactions (R¯p) to be 0.36±0.06.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Measurement of Inclusive $\gamma$ and $\pi^0$ Spectra and a Comparison of the Neutral and Charged Components in Hadronic Events in $e^+ e^-$ Annihilation at 34-{GeV}

The CELLO collaboration Behrend, H.J. ; Chen, C. ; Fenner, H. ; et al.
Z.Phys.C 14 (1982) 189, 1982.
Inspire Record 177212 DOI 10.17182/hepdata.16411

The photonic part of multihadronice+e− annihilation events has been analyzed at a c.m. energy of 34 GeV. The photonic energy fraction per event is determined to befγ=0.251±0.003 (stat.) ±0.04 (syste.). The neutral and charged components of the events are analyzed separately revealing close similarity in thrust axis directions and momentum distributions in agreement with the hypothesis that most photons result from π0 decay. π0's are reconstructed separately and used to determine the inclusive cross section. Comparing these cross sections with lower energy data from SPEAR we find some indication for scaling violation.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurement of the Reaction $e^+ e^- \to \mu^+ \mu^-$ for 14-{GeV} $\le \sqrt{s} \le$ 36.4-{GeV}

The CELLO collaboration Behrend, H.J. ; Chen, C. ; Field, J.H. ; et al.
Z.Phys.C 14 (1982) 283, 1982.
Inspire Record 177216 DOI 10.17182/hepdata.16414

The reaction (e+e−→μ+μ−) has been measured between\(\sqrt S= 14.0\) and\(\sqrt S= 36.4\). The total cross section result is in good agreement with the QED prediction and the following Λ values have been obtained:Λ+=186 GeV,Λ−=101 GeV. The angular distribution at high energy (\(\left( {\left. {\left\langle {\sqrt S } \right.} \right\rangle= 34.2 GeV} \right)\)) shows a fitted charge asymmetry of −0.064±0.064 in agreement with theW-S model prediction of −0.092, corresponding to an axial coupling parametera2=4ga2=0.69±0.69.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

Errors include contribution from systematics. Result based on fit(1 + cos(theta)**2 + q cos(theta)) to corrected angular distribution.