Submitted to Physical Review D
نویسندگان
چکیده
Recently, the L3 collaboration has reported the observation of four events in the reactions e + e − → ll + γγ, l = e, µ, τ , with the invariant photon pair mass near 60 GeV in a data sample collected in the L3 detector corresponding to 950,000 produced Z 0 's. More recently, more data from the other LEP collaborations have become available. In this paper, we use the Monte Carlo genrator YFS3 and our recent exact results on e + e − → ll + γγ to assess the QED expectations for such L3-type high mass photon pair events in e + e − → ll + γγ + n(γ) near the Z 0 resonance.
منابع مشابه
Peer Reviewers’ Comments on Research Articles Submitted by Iranian Researchers
The invisible hands of peer reviewers play a determining role in the eventual fate of submissions to international English-medium journals. This study builds on the assumption that non-native researchers and prospective academic authors may find the whole strive for publication, and more specifically, the tough review process, less threatening if they are aware of journal reviewers’ expectation...
متن کاملClassical derivation of black-hole entropy.
. The proportionality between black hole entropy and area is derived from classical thermodynamics. The relationship between the classical and quantum formulas is shown to be similar to that of black body radiation. Classical ther-. modynamics is shown to imply certain characteristics for classical waves which are normally thought to be quantum mechanical in origin. Submitted to Physical Review D
متن کاملThe association between venous thromboembolism and physical inactivity in everyday life.
James D Douketis MD, Vascular Medicine, McMaster University, Hamilton, ON, Canada L8N 4A6 Alfonso Iorio MD, Health Information Research Unit, Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada Competing interests: All authors have completed the ICMJE uniform disclosure form at www.icmje.org/ coi_disclosure.pdf (available on request from the correspo...
متن کاملBäcklund transformation for nonrelativistic Chern-Simons vortices.
A Bäcklund transformation yielding the static non-relativistic Chern-Simons vortices of Jackiw and Pi is presented. (20/2/1996) Submitted to the Phy. Rev. D PACS numbers: 0365.GE, 11.10.Lm, 11.15.-q
متن کاملBRST quantization of the CP1 model with Chern-Simons term in 2+1 dimensions.
Field theory on CP1 with Chern-Simons term is analyzed classically and then quantized. The constrained system is disentangled using the elegant BRST method. The quantum Hamiltonian, the BRST charge and the anti-BRST charge are derived. Application to a recently proposed model with principal chiral fields is elaborated. Submitted to Physical Review D *Work supported by the Department of Energy, ...
متن کاملAngular momentum and spin within a self-consistent, Poincaré-invariant and unitary three-particle scattering theory.
The self-consistent, Poincard invariant and unitary three-particle scattering theory developed in a previous paper is extended to include angular momentum conservation and individual particle spin. The treatment closely follows that of the scalar case, with the complete set of angular momentum states for three free particles developed by Wick used in place of scalar plane wave states. Submitted...
متن کامل