Monte Carlo Test Of The Optimal Jet Definition

JANKOWSKI3'*, F. V. TKACHOV2'* 1 Mathematical Physics, Natl. Univ. of Ireland Maynooth, Maynooth, Co. Kildare, Ireland 2Institute for Nuclear Research of RAS, Moscow 117312, Russia 3 Department of Physics, University of Alberta, Edmonton, AB, T6G 2J1, Canada * E-mail dima thphys.may.ie t E-mail ejankows phys.ualberta. ca * E-mail flkachov ms2.inr.ac.ru We summarize the Optimal Jet Definition and present the result of a benchmark Monte Carlo test based on the W-boson...

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Previous calculations were carried out assuming B Bcr me 4.414 x 1013 Gauss so they could use photon normal modes which apply only in the weak field limit (B Bcr). They also used Johnson-Lippmann 6 electron wavefunctions which are valid only in weak fields (Graziani 7). More complete discussions of quantum electrodynamic processes in strong magnetic fields can be found in the review paper of Canuto and Venture 8, the PhD thesis of Frangodimitraki-Georgiadou 9 or in Meszaros 5. The first...

D A Leahy

Dept. of Physics and Astronomy Univeristy of Calgary Calgary, Alberta, CANADA E-mail leahy iras.ucalgary.ca The application of quantum electrodynamics in strong magnetic fields only fairly recently has been a subject of interest. The motivation for these studies was the discovery in the 1970's of neutron stars with very high magnetic fields, of order 1012 Gauss. In the 1990's good evidence for neutron stars with fields up to 1015 Gauss has been found. With such high fields, a number of rates...

Mn m12 rn r12

Where in the last line CPT symmetry is used to write M Mn M22 and r Tn r22. The values of M and T are determined by the quark masses and the strong and electromagnetic interactions. The last term induces Ab 2 transitions and is responsible for flavor oscillations. The dispersive (Mi2) and absorptive (r 2) parts correspond to virtual and real intermediate states, respectively. The time evolution of a state that is a pure B at t 0 is given by and light eigenstates -ir 2-iM)t i AMt , ATt . . AMt ....

Unki Yang

Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA We use a new scaling variable w, and add low Q2 modifications to GRV98 leading order parton distribution functions such that they can be used to model electron, muon and neutrino inelastic scattering cross sections (and also photoproduction) at both very low and high energies. In a previous communication 1 we used a modified scaling variable xw and fit for modifications to the GRV94 leading order PDFs such that the PDFs...

T

The preliminary result of the new measurement is Mt 179.9 3.6(stat.) 6.0 syst.)GeV Figure 5. a) Negative of the log of the likelihood as a function of the top quark mass for 22 tt candidates, b) Probability distribution determined from the likelihood. The hatched area corresponds to the 68 probability interval, c) Negative of the log of the likelihood as a function of the W mass, d) Probability distribution determined from the likelihood. Figure 5. a) Negative of the log of the likelihood as a...

Ams01 Results

INFN - Sezione di Perugia via Pascoli 1-06123 Perugia, ITALY E-mail Paolo. ZucconQpg.infn.it AMS01 is a magnetic spectrometer that flew on board the Space Shuttle Discovery in the June 1998 during the STS91 mission. During this precursor flight AMS01 made an accurate measurement of the cosmic rays fluxes in the rigidity range 0.1-200 GV over the whole area enclosed between 51 of latitude. These measurements allowed to put a limit of 1.1 10-6 on the presence of anti-He in the cosmic rays fluxes...