A new Monte Carlo event generator for high energy physics

“…Stop events were generated according to the expected differential cross-sections, using the BASES and SPRING program packages [10]. Special care was taken in the modelling of the stop hadronisation [11].…”

Section: Data Samples and Event Generatorsmentioning

confidence: 99%

Search for supersymmetric partners of top and bottom quarks at GeV

Abreu¹,

Adam²,

Adye³

et al. 2000

Physics Letters B

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Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are observed in these data sets, which are taken at centre-of-mass energies of 183 GeV and 189 GeV and correspond to integrated luminosities of 54 pb −1 and 158 pb −1 . These results are used in combination with those obtained by DELPHI at lower centre-of-mass energies to exclude regions in the squark-neutralino mass plane at 95% confidence level.

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“…The higher order effects were taken into account by appropriately weighting the P T distribution of charm quarks [11,13,14]. We used the BASES/SPRING program [26] to calculate the cross sections of these processes and to generate events at the parton level. The charm-quark mass(m c ) used in the cross-section calculations was changed in the range 1.3 -1.5 GeV in order to see the effect of the mass.…”

Section: Cross Section and Monte-carlo Simulationmentioning

confidence: 99%

Measurement of inclusive electron cross section in γγ collisions at TRISTAN

Iwasaki¹,

Enomoto²,

Hayashii³

et al. 1994

Physics Letters B

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We have studied open charm production in γγ collisions with the TOPAZ detector at the TRISTAN e + e − collider. In this study, charm quarks were identified by electrons (and positrons) from semi-leptonic decays of charmed hadrons. The data corresponded to an integrated luminosity of 95.3 pb −1 at a center-of-mass energy of 58 GeV. The results are presented as the cross sections of inclusive electron production in γγ collisions with an anti-tag condition, as well as the subprocess cross sections, which correspond to resolved-photon processes. The latter were measured by using a sub-sample with remnant jets. A comparison with various theoretical predictions based on direct and resolved-photon processes showed that our data prefer that with relatively large gluon contents in a photon at small x(x ≤ 0.1), with the next-to-leading order correction, and with a charm-quark mass of 1.3 GeV.2

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A new Monte Carlo event generator for high energy physics

Cited by 212 publications

References 2 publications

e+e−→W+W−→4f(+γ) at LEP2

e+e−→W+W−→4f(+γ) at LEP2

Search for supersymmetric partners of top and bottom quarks at GeV

Measurement of inclusive electron cross section in γγ collisions at TRISTAN

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