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Splitting of Photoemulsion Nuclei at Inelastic Scattering of 32 GeV Muons on the Small Angles. Collective Effects

Rabin, M. ;
ITEP-86-114, 1986.
Inspire Record 1394612 DOI 10.17182/hepdata.40161

None

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

DISTRIBUTION FOR 'CLUSTER' REFERENCE FRAME, I.E. FRAME MOVING WITH YRAP=0.08 ALONG BEAM.

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Search for solutions of the phase-shift analysis of pp interactions at 970 MeV

Vovchenko, V.G. ; Grebenyuk, O.G. ; Fedorov, O.Ya. ;
Yad.Fiz. 44 (1986) 456-459, 1986.
Inspire Record 239695 DOI 10.17182/hepdata.38007

A random search for solutions of the phase-shift analysis of pp scattering at 970 MeV is carried out. Solutions were selected according to the correct position of the zero of trajectory I of the Barrelet amplitude f1 in addition to the statistical criteria. Two pairs of solutions with similar phase shifts are found as a result. Two of these solutions have been found before

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the Spin Rotation Parameters R and A in pi- p Elastic Scattering at Energy 450 MeV

Bekrenev, V.S. ;
LENI-86-1215, 1986.
Inspire Record 1395704 DOI 10.17182/hepdata.37961

None

3 data tables
Table 1

POLARIZED PROTON TARGET.

Table 2

POLARIZED PROTON TARGET.

Table 3

POLARIZED PROTON TARGET.


DETERMINING INELASTIC INTERACTION CROSS-SECTIONS FOR NUCLEONS AND PIONS INCIDENT ON CARBON AND LEAD NUCLEI AT 0.5-TEV - 5-TEV

Avakian, V.V. ; Gevorkian, S.P. ; Zhamkochian, V.M. ; et al.
Bull.Russ.Acad.Sci.Phys. 50N11 (1986) 4-7, 1986.
Inspire Record 242221 DOI 10.17182/hepdata.41509

None

1 data table
Table 1

No description provided.


rivet Analysis
PION AND KAON MULTIPLICITIES IN HEAVY QUARK JETS FROM e+ e- ANNIHILATION AT 29-GeV

The TPC/Two Gamma collaboration Aihara, H. ; Alston-Garnjost, M. ; Avery, R.E. ; et al.
Phys.Lett.B 184 (1987) 299-304, 1987.
Inspire Record 235694 DOI 10.17182/hepdata.30210

The multiplicities per event of π ± and K ± are measured separately for e + e - annihilation into c c , b b , and light quark pairs at E cm=29 GeV. The K ± multiplicity is higher for heavy quark events than for light quark events. The π ± multiplicity and the π ± scaled differential cross section at low x = E beam/ E beam are found to be higher for b b events than for other events.

5 data tables
Table 1

Numerical values requested from authors. Data given separately for (b bbar), (c cbar) and light quark jets.

Table 2

Measured multiplicities for (b bbar) jets.

Table 3

Measured multiplicities for (c cbar) jets.

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A SEARCH FOR NARROW STATES IN ANTI-NEUTRON PROTON TOTAL AND ANNIHILATION CROSS-SECTIONS NEAR ANTI-N N THRESHOLD

Armstrong, T. ; Chu, C. ; Clement, J.C. ; et al.
Phys.Lett.B 175 (1986) 383-386, 1986.
Inspire Record 236704 DOI 10.17182/hepdata.30241

The n̄p total and annihilation cross section have been measured from near N̄N threshold (1880 MeV) to 1940 MeV with RMS resolution ranging from 0.08 MeV (1880 MeV) to 6.7 MeV (1940 MeV). No significant narrow meson structures were seen, with 90% CL upper limits of 40–180 mb-MeV on σΓ for states with width less than our resolution. Combined with increasing unitarity bounds on σ as one approaches threshold, these limits confine widths of possible predicted states below 1900 MeV to less than ∼ 1 MeV.

1 data table
Table 1

No description provided.


Investigation of the Reaction $e^+ e^- \to \eta \pi^+ \pi^-$ in the Energy Range Up to 1.4-{GeV}

Druzhinin, V.P. ; Dubrovin, M.S. ; Eidelman, S.I. ; et al.
Phys.Lett.B 174 (1986) 115-117, 1986.
Inspire Record 234174 DOI 10.17182/hepdata.30258

The reaction e + e − → ηπ + π − has been studied with the Neutral Detector in the CM energy range 1.05–1.40 GeV at VEPP-2M. At the maximum energy the cross section exceeds the prediction of the vector dominance with one ϱ(770). The following upper limits for the electron width times branching ratio into ηπ + π − have been obtained for a resonance with a mass of 1.28 GeV and width of 0.08 GeV observed with the Omega-spectrometer at CERN: Λ ee · B ηππ < 9 eV, and for a ϱ′(1250) with a mass of 1.26 GeV and width of 0.125 GeV: Λ ee · B ηππ < 14 eV at 90% confidence level.

1 data table
Table 1

Axis error includes +- 10/10 contribution (RES-DEF(RES=ETA,DEF=530<M(2GAMMA)<570 MEV,BACK=CORRECTED)).


Neutral and Charged $D^*$ Production in 360-{GeV}/$c \pi^- p$ Interactions

The LEBC-EHS collaboration Aguilar-Benitez, M. ; Allison, W.W. ; Baland, J.F. ; et al.
Phys.Lett.B 169 (1986) 106-112, 1986.
Inspire Record 227059 DOI 10.17182/hepdata.30268

The first data on the production of D ∗ (2010) are presented as observed in π − -proton interactions at √ s = 27 GeV . It is found that D ∗ (2010) dominates the total charm D-meson production, without a significant non-central component.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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High-energy Photoproduction of Large Transverse Momentum $\pi^0$ Mesons: A Quantitative Test of {QCD}

The NA14 collaboration Auge, E. ; Barate, R. ; Bloch, D. ; et al.
Phys.Lett.B 168 (1986) 163-169, 1986.
Inspire Record 227057 DOI 10.17182/hepdata.30278

The first results on inclusive photoproduction of π 0 at transverse momenta up to 4 GeV/ c , using incident γ energies between 50 and 150 GeV are presented. A comparison is made with inclusive π 0 production obtained, in the same experiment, with incident π − . Using the π − data to parametrize the hadronic behaviour of the photon, significant differences are observed in quantitative agreement with QCD Compton scattering and corrections thereof.

2 data tables
Table 1

FC,IC,BC REFER TO FORWARD,INTERMEDIATE AND BACKWARD CALORIMETERS.

Table 2

FC,IC,BC REFER TO FORWARD,INTERMEDIATE AND BACKWARD CALORIMETERS.


Observation of Double $\phi$ Meson Production in the Central Region for the Reactions $\pi^+ P \to \pi^+ (K^+ K^+ K^- K^-$) $P$ and $P P \to P (K^+ K^+ K^- K^-$) $P$ at 85-{GeV}/c

The ATHENS-BARI-BIRMINGHAM-CERN collaboration Armstrong, T.A. ; Bloodworth, I.J. ; Carney, J.N. ; et al.
Phys.Lett.B 166 (1986) 245-248, 1986.
Inspire Record 228698 DOI 10.17182/hepdata.30307

The reactions π + p → π + ( K + K + K − K − ) p and pp → p ( K + K + K − K − ) p in which the K + K + K − K − system is centrally produced have been studied at 85 GeV c . Evidence is found for φφ production. The relative rates for production of φφ , φK + K − and K + K + K − K − have been determined.

1 data table
Table 1

No description provided.