Measurement of j / psi production in continuum e+ e- annihilations near s**(1/2) = 10.6-GeV

The BaBar collaboration Aubert, Bernard ; Boutigny, D. ; Gaillard, J.M. ; et al.
Phys.Rev.Lett. 87 (2001) 162002, 2001.
Inspire Record 558091 DOI 10.17182/hepdata.19450

The production of $J/\psi$ mesons in continuum $e^+e^-$ annihilations has been studied with the BABAR detector at energies near the $\Upsilon(4S)$ resonance, approximately 10.6 GeV. The mesons are distinguished from $J/\psi$ production in B decays through their center-of-mass momentum and energy. We measure the cross section $e^+e^-\to J/\psi X$ to be $2.52\pm 0.21\pm 0.21$ pb: for momentum above 2 GeV/c, it is $1.87\pm 0.10\pm 0.15$ pb. We set a 90% confidence level upper limit on the branching fraction for direct $\Upsilon(4S)$\to J/\psi X$ decays at $4.7\times 10^{-4}$.

1 data table

Cross section measurement.


Experiments at VEPP-2M with SND detector

The SND collaboration Achasov, M.N. ; Aulchenko, V.M. ; Baru, S.E. ; et al.
BINP-98-65, 1998.
Inspire Record 476386 DOI 10.17182/hepdata.50374

Short overview of experiments with SND detector at VEPP-2M e^+e^- collider in the energy range 2E = 400 - 1400 MeV and preliminary results of data analysis are presented.

4 data tables

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Observation of D0 ---> K+ pi- rho0 produced in interactions of 40-GeV - 70-GeV neutrons with hydrogen, carbon and aluminum

The BIS-2 collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.
JINR-P1-90-595, 1990.
Inspire Record 305481 DOI 10.17182/hepdata.38714

None

2 data tables

NUCLEUS IS P, C, AL.

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DIFFRACTIVE DISSOCIATION OF NEUTRONS IN LAMBDA0 K0 ON HYDROGEN AT ABOUT 40-GeV ENERGY

The BIS-2 collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.
JINR-P1-88-51, 1988.
Inspire Record 261900 DOI 10.17182/hepdata.38806

None

4 data tables

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SEARCH FOR THE DECAY K(S) ---> 2 GAMMA

Vasserman, I.B. ; Golubev, V.B. ; Gluskin, E.S. ; et al.
JETP Lett. 43 (1986) 588-590, 1986.
Inspire Record 239033 DOI 10.17182/hepdata.16835

None

1 data table

No description provided.


TEST OF QUANTUM ELECTRODYNAMICS IN THE COMPTON SCATTERING OF QUASIREAL PHOTONS BY ELECTRONS AND POSITRONS AT THE VEPP-2M STORAGE RING

Druzhinin, V.P. ; Golubev, V.B. ; Ivanchenko, V.N. ; et al.
Sov.J.Nucl.Phys. 41 (1985) 752, 1985.
Inspire Record 202873 DOI 10.17182/hepdata.37153

None

5 data tables

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