Abdullin, S.K.
DSIG/DP
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rivet Analysis
Measurement of inclusive production of neutral pions from Upsilon(4S) decays.

The Belle collaboration Abe, Kazuo ; Abe, K. ; Adachi, I. ; et al.
Phys.Rev.D 64 (2001) 072001, 2001.
Inspire Record 554520 DOI 10.17182/hepdata.31475

Using the Belle detector operating at the KEKB e+e- storage ring, we have measured the mean multiplicity and the momentum spectrum of neutral pions from the decays of the Upsilon(4S) resonance. We measure a mean of 4.70 +/- 0.04 +/- 0.22 neutral pions per Upsilon(4S) decay.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


THE H-3 + P ---> P + N + D REACTION AT A TRITIUM MOMENTUM OF 5-GEV/C

Abdullin, S.K. ; Blinov, A.V. ; Vanyushin, I.A. ; et al.
Nucl.Phys.A 506 (1990) 471-481, 1990.
Inspire Record 297384 DOI 10.17182/hepdata.15700

Using a liquid hydrogen bubble chamber of the ITEP, 80 cm in diameter, a study was made of the 3 H + p → p + n + d reaction with an incident momentum of 5 GeV/c for the tritium nuclei. The reaction cross section was 20.4 ± 0.2 mb. The angular, momentum and mass distributions of the reaction products in the 4π geometry have been obtained. We have separated the phase-space regions corresponding to quasi-free pn scattering and to the final-state Nd interaction. In the region of quasi-free pn scattering various experimental spectra are compared with the theoretical predictions, by using pole diagrams with nuclear vertex functions for three NN potentials: the Yamaguchi potential, the RSC potential and the potential in the quark-compound bag model. In the mass spectra of pn, pd and nd systems no evidence for the exhibition of two- and three-baryon resonances has been obtained.

6 data tables
Table 1

No description provided.

Table 2

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Table 3

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