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Experimental Study of Differential Cross-sections in Charged Current Neutrino and Anti-neutrinos Interactions

The CHARM collaboration Jonker, M. ; Panman, J. ; Udo, F. ; et al.
Phys.Lett. B109 (1982) 133-140, 1982.
Inspire Record 168613 DOI 10.17182/hepdata.6668
7 data tables

No description provided.

No description provided.

No description provided.

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A Measurement of $\Lambda_{\overline{MS}}$ from $\nu_{\mu}$ - Fe Nonsinglet Structure Functions at the Fermilab Tevatron

Quintas, P.Z. ; Leung, W.C. ; Mishra, S.R. ; et al.
Phys.Rev.Lett. 71 (1993) 1307-1310, 1993.
Inspire Record 336860 DOI 10.17182/hepdata.19733
1 data table

The CONST(N=LAMBDA-QCD) is extracted from the measurement of scaling violations of the nonsinglet structure function.


Measurement of the direct photon spectrum in upsilon (1s) decays

The CLEO collaboration Nemati, B. ; Richichi, S.J. ; Ross, W.R. ; et al.
Phys.Rev. D55 (1997) 5273-5281, 1997.
Inspire Record 425927 DOI 10.17182/hepdata.52340

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we have determined the ratio of branching fractions: $R_{\gamma} \equiv \Gamma(\Upsilon(1S) \rightarrow \gamma gg)/\Gamma(\Upsilon(1S) \rightarrow ggg) = (2.75 \pm 0.04(stat.) \pm 0.15(syst.))%$. From this ratio, we have determined the QCD scale parameter $\Lambda_{\overline{MS}}$ (defined in the modified minimal subtraction scheme) to be $\Lambda_{\overline{MS}}= 233 \pm 11 \pm 59$ MeV, from which we determine a value for the strong coupling constant $\alpha_{s}(M_{\Upsilon(1S)}) = 0.163 \pm 0.002 \pm 0.014$, or $\alpha_{s}(M_{Z}) = 0.110 \pm 0.001 \pm 0.007$.

1 data table

The ALPHAS at MZ is extrapolation from M(UPSI).


Measurement of alpha-s from jet rates in deep inelastic scattering at HERA

The ZEUS collaboration Derrick, M. ; Krakauer, D. ; Magill, S. ; et al.
Phys.Lett. B363 (1995) 201-216, 1995.
Inspire Record 400436 DOI 10.17182/hepdata.44947

Jet production in deep inelastic scattering for $120<Q~2<3600$GeV$~2$ has been studied using data from an integrated luminosity of 3.2pb$~{-1}$ collected with the ZEUS detector at HERA. Jets are identified with the JADE algorithm. A cut on the angular distribution of parton emission in the $\gamma~*$-parton centre-of-mass system minimises the experimental and theoretical uncertainties in the determination of the jet rates. The jet rates, when compared to ${\cal O}$($\alpha_{s}$~2$) perturbative QCD calculations, allow a precise determination of $\alpha_{s}(Q)$ in three $Q~2$-intervals. The values are consistent with a running of $\alpha_{s}(Q)$, as expected from QCD. Extrapolating to $Q=M_{Z~0}$ yields $\alpha_{s}(M_{Z~0}) = 0.117\pm0.005(stat)~{+0.004}_{-0.005}(syst_{exp}) {\pm0.007}(syst_{theory})$.

3 data tables

2+1 jet rate as a function of ycut the jet algorithm cut-off value. Statistical errors only.

Measured values of Lambda-QCD in the MS Bar scheme and alpha_s as a function of Q**2. The second systematic uncertainty is related to the theoretical uncertainties .

Strong coupling constant alpha_s extrapolated to the Z0 mass.


Determination of alpha-s from the scaling violation in the fragmentation functions in e+ e- annihilation

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.
Phys.Lett. B311 (1993) 408-424, 1993.
Inspire Record 355937 DOI 10.17182/hepdata.48411
2 data tables

No description provided.

Extraction of strong coupling constant ALP_S and the LAMQCD)MSBAR values.


Direct photon production in $\bar{p} p$ and $p p$ interactions at $\sqrt{s}$ = 24.3-GeV

The UA6 collaboration Sozzi, G. ; Ballocchi, G. ; Bernasconi, A. ; et al.
Phys.Lett. B317 (1993) 243-249, 1993.
Inspire Record 358422 DOI 10.17182/hepdata.28782
4 data tables

No description provided.

No description provided.

No description provided.

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Energy-energy correlations in hadronic final states from Z0 decays

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adami, F. ; et al.
Phys.Lett. B252 (1990) 149-158, 1990.
Inspire Record 300161 DOI 10.17182/hepdata.29534
2 data tables

Data requested from the authors.

Values of LAMBDA-MSBAR(5) and ALPHA-S(91 GeV) deduced from the EEC measurements. The second systematic error is from the theory.


Determination of $\alpha^- s$ From a Differential Jet Multiplicity Distribution at {SLC} and {PEP}

Komamiya, Sachio ; Le Diberder, F. ; Abrams, G.S. ; et al.
Phys.Rev.Lett. 64 (1990) 987, 1990.
Inspire Record 283630 DOI 10.17182/hepdata.19937
2 data tables

DIFFERENTIAL JET MULTIPLICITIES.

DIFFERENTIAL JET MULTIPLICITIES.


Determination of the QCD scale parameter Lambda (ms) with QCD cascade on the basis of the next-to-leading logarithmic approximation

The VENUS collaboration Abe, K. ; Amako, K. ; Arai, Y. ; et al.
Phys.Lett. B240 (1990) 232-236, 1990.
Inspire Record 296684 DOI 10.17182/hepdata.29690
2 data tables

Data are uncorrected for initial radiation, detector effects, and quark hadronization.

LAMBDA-MSBAR determined from the 3-jet ratio.


Measurement of the Total Hadronic Cross-sections in e$^{+} $e$^{-}$ Annihilation and Determination of the Standard Model Parameters

The TOPAZ collaboration Adachi, I. ; Doser, M. ; Enomoto, R. ; et al.
Phys.Lett. B234 (1990) 525-533, 1990.
Inspire Record 283003 DOI 10.17182/hepdata.29733
2 data tables

No description provided.

No description provided.


A Model Independent Second Order Determination of the Strong Coupling Constant $\alpha^- s$

Adeva, B. ; Barber, D.P. ; Becker, U. ; et al.
Phys.Rev.Lett. 50 (1983) 2051, 1983.
Inspire Record 189724 DOI 10.17182/hepdata.3086
2 data tables

DATA REQUESTED FROM THE AUTHORS.

No description provided.


Precision Measurement of the Total Cross-section for $e^+ e^- \to$ Hadrons at a Center-of-mass Energy of 29-{GeV}

Fernandez, E. ; Ford, William T. ; Qi, N. ; et al.
Phys.Rev. D31 (1985) 1537, 1985.
Inspire Record 206052 DOI 10.17182/hepdata.4048
2 data tables

No description provided.

No description provided.


Measurement of the Branching Ratio for $\Upsilon^\prime$-prime $\to \mu \mu$

Kaarsberg, T. ; Lee-Franzini, Juliet ; Lovelock, D.M.J. ; et al.
Phys.Rev. D35 (1987) 2265, 1987.
Inspire Record 230842 DOI 10.17182/hepdata.23382
1 data table

No description provided.


Determination of $\alpha^- s$ From a Measurement of the Direct Photon Spectrum in $\Upsilon$ (1s) Decays

The ARGUS collaboration Albrecht, H. ; Andam, A.A. ; Binder, U. ; et al.
Phys.Lett. B199 (1987) 291-296, 1987.
Inspire Record 248655 DOI 10.17182/hepdata.30061
1 data table

No description provided.


A Study of Energy-energy Correlations Between 12-{GeV} and 46.8-{GeV} {CM} Energies

The TASSO collaboration Braunschweig, W. ; Gerhards, R. ; Kirschfink, F.J. ; et al.
Z.Phys. C36 (1987) 349-361, 1987.
Inspire Record 248660 DOI 10.17182/hepdata.1698
10 data tables

Correlation function binned in cos(chi).

Correlation function binned in cos(chi).

Correlation function binned in cos(chi).

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A Measurement of Strong Coupling Constant $\alpha_s$ to Second Order for 14-{GeV} $\le \sqrt{s} \le$ 46.78-{GeV}

The MARK-J collaboration Adeva, B. ; Becker, U. ; Becker-Szendy, R. ; et al.
Phys.Rev.Lett. 54 (1985) 1750, 1985.
Inspire Record 208007 DOI 10.17182/hepdata.20386
2 data tables

No description provided.

Axis error includes +- 0.0/0.0 contribution (DUE TO FRAGMENTATION MODEL).


A Measurement of the Strong Coupling Constant $\alpha^- s$ to Complete Second Order

The Mark-J collaboration Adeva, B. ; Anderhub, H. ; Ansari, S. ; et al.
Phys.Lett. B180 (1986) 181-184, 1986.
Inspire Record 231302 DOI 10.17182/hepdata.6535
3 data tables

No description provided.

No description provided.

No description provided.


An Improved measurement of alpha-s (M (Z0)) using energy correlations with the OPAL detector at LEP

The OPAL collaboration Acton, P.D. ; Alexander, G. ; Allison, J. ; et al.
Phys.Lett. B276 (1992) 547-564, 1992.
Inspire Record 321657 DOI 10.17182/hepdata.29245
2 data tables

Value of LAMBDA(MSBAR) and ALPHA_S.. The first systematic error is experimental, the second is from theory.

The EEC and its asymmetry at the hadron level, unfolded for initial-state radiation and for detector acceptance and resolution. Errors include full statistical and systematic uncertainties.