Cremaldi, L.M
hep-ex
Max results
Sort by Reverse order

Showing 10 of 738 results

The phi Meson: Precision Measurement of Its Mass, Observation of the omega phi Interference

Bukin, A.D. ; Kurdadze, L.M. ; Serednyakov, S.I. ; et al.
Yad.Fiz. 27 (1978) 976-984, 1978.
Inspire Record 137035 DOI 10.17182/hepdata.19017

None

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Study of the high mass dimuon continuum in 400-GeV proton - nucleus collisions

Kaplan, D.M. ; Fisk, R.J. ; Ito, A.S. ; et al.
Phys.Rev.Lett. 40 (1978) 435, 1978.
Inspire Record 122485 DOI 10.17182/hepdata.20947

The mass spectrum of muon pairs in the range 5 to 15 GeV is studied in the inclusive reaction p+nucleus→μ++μ−+anything. The ϒ and continuum distribution are presented as is the A dependence of the continuum. Comparison with a parton-annihilation model yields a sea-quark distribution.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Observation of a dimuon resonance at 9.5-GeV in 400-GeV proton - nucleus collisions

The E288 collaboration Herb, S.W. ; Hom, D.C. ; Lederman, L.M. ; et al.
Phys.Rev.Lett. 39 (1977) 252-255, 1977.
Inspire Record 120368 DOI 10.17182/hepdata.42613

Dimuon production is studied in 400-GeV proton-nucleus collisions. A strong enhancement is observed at 9.5 GeV mass in a sample of 9000 dimuon events with a mass $m_{\mu^+\mu^-} \to$ 5 GeV.

1 data table
Table 1

Two peaks were observed. Mass spectrum was fitted to one and two resonance hypothesis.


Determination of the Neutral to Charged Current Inclusive Cross-Section Ratio for Neutrino and anti-neutrino Interactions in the Gargamelle Experiment

The Gargamelle Neutrino collaboration Blietschau, J. ; Deden, H. ; Hasert, F.J. ; et al.
Nucl.Phys.B 118 (1977) 218-236, 1977.
Inspire Record 110123 DOI 10.17182/hepdata.35596

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Production of $\psi$ (3100) and $\psi^{\prime}$ (3700) in p-Be Collisions at 400-GeV

Snyder, H.D. ; Hom, D.C. ; Lederman, L.M. ; et al.
Phys.Rev.Lett. 36 (1976) 1415, 1976.
Inspire Record 108462 DOI 10.17182/hepdata.21117

We report preliminary results on the production of electron-positron pairs in the mass range 2.5 to 4 GeV in 400-GeV p-Be interactions. Production cross sections of the ψ(3100) near x=0 as a function of pt, x, and the decay angle are presented and implications of these new data for single direct leptons are discussed. A ψ′(3700) signal is observed at a level corresponding to σ(ψ′)σ(ψ)=(10±3)%.

1 data table
Table 1

No description provided.


Study of pi- n and pi- C-12 Interactions Involving Strange Particles at the Momentum of 40-GeV/c

Angelov, N. ; Vishnevskaya, K.P. ; Grishin, V.G. ; et al.
Yad.Fiz. 24 (1976) 732-741, 1976.
Inspire Record 100544 DOI 10.17182/hepdata.18228

None

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Measurement of the gamma-V Coupling Constants and sigma-T (Vd) from Coherent gamma-d Interactions at 7.5-GeV

Alexander, G. ; Benary, O. ; Gandsman, J. ; et al.
Phys.Lett.B 57 (1975) 487-490, 1975.
Inspire Record 2480 DOI 10.17182/hepdata.27813

We have measured the total and differential cross-sections for coherently photoproduced ϱ, ω and ϱ′ on deuterium at 7.5 GeV. Using VDM relations, we have obtained γ ω 2 / γ ϱ 2 = 7.1 ± 1.5, σ T ( ϱ d) = (54 ± 2) mb and σ T ( ω d) = (56 ± 5) mb. Assuming the amplitude for ϱ′ production via an intermediate ϱ 0 to be small and that the amplitudes for ϱp and ϱ′p elastic scattering are comparable, we found γ ϱ ′ 2 / γ ϱ 2 = 6.0 ± 1.2 and σ T ( ϱ ′d) = (47 ± 6) mb.

2 data tables
Table 1

No description provided.

Table 2

FROM AN EXPONENTIAL FIT WITH DEUTERON FORM FACTOR.


Photoproduction of Neutral Pions on Deuterium at Forward Angles in the First Resonance Region

Hilger, E. ; Rogler, H.J. ; Simons, L.M. ; et al.
Nucl.Phys.B 93 (1975) 7-11, 1975.
Inspire Record 103209 DOI 10.17182/hepdata.32040

At the 500 MeV electron synchrotron in Bonn differential cross sections of the reaction γ + d → π 0 + d were measured in forward pion c.m. angles and photon energies between 340 and 420 MeV.

1 data table
Table 1

No description provided.


Study of rho0 Production in gamma d, gamma p and gamma n Reactions at 7.5-GeV/c Using Linearly Polarized Photon Beam

Alexander, G. ; Gandsman, J. ; Levy, A. ; et al.
Nucl.Phys.B 69 (1974) 445-453, 1974.
Inspire Record 94508 DOI 10.17182/hepdata.32344

The reaction γ d→d ππ , γ p→p ππ and γ n→n ππ were studied in the SLAC 82″ deuterium filled bubble chamber, exposed to a linearly polarized photon beam of 7.5 GeV. All three reactions are dominated by ϱ 0 production. The differential cross section has a slope of ∼6.5 GeV −2 for nucleon reactions and a slope of ∼27 GeV −2 for coherent deuteron reactions. The behaviour of the density matrix elements shows that ϱ production conserves s -channel c.m.s. helicity and is dominated by natural parity exchange.

1 data table
Table 1

No description provided.


Total and Partial gamma d, gamma n and gamma p Cross-Sections at 7.5-GeV

Alexander, G. ; Gandsman, J. ; Jacobs, L.D. ; et al.
Nucl.Phys.B 68 (1974) 1-11, 1974.
Inspire Record 94509 DOI 10.17182/hepdata.32388

Total and partial γd, γp and γn reactions were studied in the SLAC 82 inch deuterium-filled bubble chamber, which was exposed to a linearly polarized photon beam at an energy of 7.5 GeV. We report total, topological and channel cross sections for these reactions. The γn average charge multiplicity was found to be one unit of charge less than the γp average charge multiplicity. The isoscolar-isovector interference term as calculated by comparing the γp charge symmetric reactions is found to be small.

3 data tables
Table 1

No description provided.

Table 2

CHARGE MULTIPLICITY TOPOLOGICAL CROSS SECTIONS.

Table 3

No description provided.