Search for Dibaryon Resonances in Hadron Nucleus Interactions. (In Russian)

Azimov, S.A. ; Allaberdin, M.L. ; Edgorov, S.O. ; et al.
Yad.Fiz. 42 (1985) 913-918, 1985.
Inspire Record 228682 DOI 10.17182/hepdata.19305

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4 data tables

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A study of the energy evolution of event shape distributions and their means with the DELPHI detector at LEP.

The DELPHI collaboration Abdallah, J. ; Abreu, P. ; Adam, W. ; et al.
Eur.Phys.J.C 29 (2003) 285-312, 2003.
Inspire Record 620250 DOI 10.17182/hepdata.13029

Infrared and collinear safe event shape distributions and their mean values are determined in e+e- collisions at centre-of-mass energies between 45 and 202 GeV. A phenomenological analysis based on power correction models including hadron mass effects for both differential distributions and mean values is presented. Using power corrections, alpha_s is extracted from the mean values and shapes. In an alternative approach, renormalisation group invariance (RGI) is used as an explicit constraint, leading to a consistent description of mean values without the need for sizeable power corrections. The QCD beta-function is precisely measured using this approach. From the DELPHI data on Thrust, including data from low energy experiments, one finds beta_0 = 7.86 +/- 0.32 for the one loop coefficient of the beta-function or, assuming QCD, n_f = 4.75 +/- 0.44 for the number of active flavours. These values agree well with the QCD expectation of beta_0=7.67 and n_f=5. A direct measurement of the full logarithmic energy slope excludes light gluinos with a mass below 5 GeV.

71 data tables

1-THRUST distribution.

THRUST-MAJOR distribution.

THRUST-MINOR distribution.

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POSSIBLE OBSERVATION OF NARROW TWO PROTON RESONANCES IN HADRON NUCLEUS INTERACTIONS

Azimov, S.A. ; Allaberdin, M.L. ; Edgorov, S.O. ; et al.
JETP Lett. 40 (1984) 1109-1111, 1984.
Inspire Record 218921 DOI 10.17182/hepdata.16927

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2 data tables

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CORRELATIONS OF SECONDARY PROTONS IN P NE-20 INTERACTIONS AT 300-GEV/C

Azimov, S.A. ; Allaberdin, M.L. ; Edgorov, S.O. ; et al.
Sov.J.Nucl.Phys. 38 (1983) 890-895, 1983.
Inspire Record 200918 DOI 10.17182/hepdata.17673

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9 data tables

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