Matsyuk, M.A.
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Production of $\psi$ and $\psi^\prime$ Mesons in $\pi^- N$ Scattering at 150-{GeV}/$c$

Abolins, M.A. ; Barate, R. ; Bareyre, P. ; et al.
Phys.Lett.B 82 (1979) 145, 1979.
Inspire Record 133175 DOI 10.17182/hepdata.27333

In a large-acceptance spectrometer, muon pairs and associated hadrons were observed with μμ masses up to 10 GeV/ c 2 and ΔM M = 0.015 resolution. We report here on the production of 4000 J/ ψ and 80 ψ ′ mesons.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Hadron Production in Muon - Proton and Muon - Deuteron Collisions

Loomis, W.A. ; Gordon, B.A. ; Pipkin, F.M. ; et al.
Phys.Rev.D 19 (1979) 2543-2571, 1979.
Inspire Record 132759 DOI 10.17182/hepdata.24303

This paper reports measurements of the hadrons produced in the inelastic scattering of 147-GeV muons by protons and deuterons in an experiment carried out at Fermi National Accelerator Laboratory. Both the scattered muon and the hadrons were measured in a large spectrometer. Properties of the hadron spectra are presented for proton, deuteron, and neutron targets and compared with theoretical models and with hadron spectra from related processes. Emphasis is placed on the quark-parton model and the data are found to be in substantial agreement with it. The average transverse momentum of the hadrons with respect to the virtual photon direction shows no dependence on the muon scattering variables. The data display "jet behavior" of the inclusive hadrons comparable to that found in e+e− annihilations.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


PRODUCTION OF NEUTRAL STRANGE PARTICLES IN ANTI-NEUTRINO N INTERACTIONS CAUSED BY NEUTRAL CURRENTS

Ammosov, V.V. ; Asratian, A.E. ; Gapienko, V.A. ; et al.
JETP Lett. 39 (1984) 209-213, 1984.
Inspire Record 151098 DOI 10.17182/hepdata.2216

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


OBSERVATION OF ENERGY DEPENDENT STRUCTURE IN BACKWARD pi- d ELASTIC SCATTERING BETWEEN 0.98-GeV/c AND 1.45-GeV/c

Abramov, B.M. ; Ayrapetov, E.A. ; Bagdasaryan, L.S. ; et al.
ITEP-21-1979, 1979.
Inspire Record 140929 DOI 10.17182/hepdata.40258

None

1 data table
Table 1

BEAM ERROR D(P)/P = 0.300 PCT.



PRODUCTION OF PHOTONS ASSOCIATED WITH THE PSI BY 217-GEV/C PI- MESONS

Kirk, T.B.W. ; Raja, R. ; Goodman, M. ; et al.
Phys.Rev.Lett. 42 (1979) 619-622, 1979.
Inspire Record 145303 DOI 10.17182/hepdata.20780

Dimuon production is studied in 217-GeV/c π−-hydrogen and π−-beryllium collisions with a lead-glass array to detect photons associated with the ψ. The ψ−γ mass spectrum shows a 2.6-standard-deviation excess of events above background at ∼3.5 GeV. This excess, if attributed to the decay χ(∼3.5)→ψγ, implies that 0.70±0.28 of the ψ's are produced via radiative decay of one of the χ states.

2 data tables
Table 1

E*D(SIG)/D(XL) is fitted by (1-X)**POWER.

Table 2

No description provided.


NEUTRAL PION PHOTOPRODUCTION AND PROTON COMPTON SCATTERING AT LARGE ANGLES

Shupe, M.A. ; Milburn, Richard H. ; Quinn, D.J. ; et al.
Phys.Rev.D 19 (1979) 1921-1930, 1979.
Inspire Record 145744 DOI 10.17182/hepdata.24315

The differential cross sections for γp→γp and γp→π0p have been measured for incident photon energies in the range of 2 to 6 GeV and for |t| ranging from 0.7 to 4.3 GeV2. This corresponds to a center-of-mass angle range of 45° to 128°. The energy dependence of the data is compared to that predicted by several parton models.

10 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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QUADRUPOLE EFFECT IN ELASTIC PROTON SCATTERING WITH 1-GEV ENERGY ON THE NUCLEI OF THE P SHELL. (IN RUSSIAN)

Alkhazov, G.D. ; Belostotsky, S.L. ; Vorobev, A.A ; et al.
Pisma Zh.Eksp.Teor.Fiz. 29 (1979) 88-92, 1979.
Inspire Record 145178 DOI 10.17182/hepdata.70237

None

26 data tables
Table 1

X ERROR D(THETA) = 0.2000 DEG.

Table 2

X ERROR D(TARGET) = 99.60 PCT. X ERROR D(THETA) = 0.2000 DEG.

Table 3

X ERROR D(THETA) = 0.2000 DEG.

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OBSERVATION IN THE K+ K- SYSTEM OF A NEW STRUCTURE AT 2.2-GEV

The BARI-BONN-CERN-DARESBURY-GLASGOW-LIVERPOOL-MILAN-VIENNA collaboration Evangelista, C. ; Ghidini, B. ; Palano, A. ; et al.
Nucl.Phys.B 154 (1979) 381-393, 1979.
Inspire Record 146574 DOI 10.17182/hepdata.34680

A sample of 56 909 events of the reaction π − p→K + K − n at 10 GeV/ c has been measured in the Omega Spectrometer at CERN. In the K + K − system, besides production of mesons in the S ∗ /φ, f 0 / A 2 , g /ω ∗ and h regions we observe a new structure at 2.20 GeV with a width of the order of 200 MeV.

1 data table
Table 1

BREIT-WIGNER RESONANCES PLUS SMOOTH BACKGROUND FITTED TO K+ K- MASS SPECTRUM. RESTRICTIVE T-CUTS TO ENHANCE THE X(2200) GIVE CONSISTENT RESULTS.


Nuclear Scattering of Deuterons at 4.3-{GeV}/$c$, 6.3-{GeV}/$c$ and 8.9-{GeV}/$c$

Azhgirei, L.S. ; Ignatenko, M.A. ; Ivanov, V.V. ; et al.
Sov.J.Nucl.Phys. 30 (1979) 818, 1979.
Inspire Record 141312 DOI 10.17182/hepdata.18336

None

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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