منابع مشابه
Search for Leptoquarks
In many extensions of the Standard Model (SM) new particles are predicted which carry both lepton and baryon number leptoquarks (LQ). LQs might have masses as low as the electroweak scale. Therefore they have been directly searched for in high energy collider experiments. In the BRWmodel [1] LQs are assumed to respect SU(3)×SU(2)×U(1) symmetry. Several isospin multiplets can be constructed with...
متن کاملA search for resonance decays to lepton+jet at HERA and limits on leptoquarks
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at HERA operating at center-of-mass energies of 300 and 318 GeV. An integrated ep luminosity of 114.8 pb and ep luminosity of 16.7 pb were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling, λ, as a function of the mass of a hypotheti...
متن کاملAxial Anomaly Effects in Pion and Z0 Radiative Decays
We discuss a connection between axial anomaly and polarized radiative processes. By comparison with the corresponding unpolarized cases, we consider some physical outputs for the π+ and Z0 polarized radiative decays. We analyse in detail the pattern of mass singularity cancellation. PACS 11.30.Rd, 13.20.Cz, 11.15.Bt
متن کاملthe search for the self in becketts theatre: waiting for godot and endgame
this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...
15 صفحه اولFirst symmetry tests in polarized Z0 decays to bbg.
We have made the first direct symmetry tests in the decays of polarized Z0 bosons into fully identified bbg states, collected in the SLD experiment at SLAC. We searched for evidence of parity violation at the bbg vertex by studying the asymmetries in the b-quark polar- and azimuthal-angle distributions, and for evidence of T-odd, CP-even or CP-odd, final-state interactions by measuring angular ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1991
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)91346-w