English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the diagnostic power of future $e^+e^-$ colliders with ${\sqrt {s}}= 500$ GeV (the New Large Collider ($NLC$)) for a model independentdetermination of the $Z'$ gauge couplings to quarks and leptons. Theinterference of the $Z'$ propagator with the photon and the $Z$ propagator inthe two-fermion final state probes are sensitive to the magnitude as well asrelative signs of quark and lepton charges. For $Z'$ with $M_{Z'} \sim 1 $ TeV{\it all } the quark and lepton charges can be determined to around $10-20 \%$,provided heavy flavor tagging and longitudinal polarization of the electronbeam is available. The errors are $2-10$ times larger without polarization, andvery little information can be obtained about quark charges without heavyflavor tagging. We point out the complementarity of future hadron colliders. Atthe CERN Large Hadron Collider ($LHC$) primarily the magnitude of three out offour corresponding couplings can be measured; however, their error-bars aretypically by a factor of $\sim 2$ smaller than those at the $NLC$.Comment: 16pg (figures available via anonymous ftp to dept.physics.upenn.edu  /pub/cvetic/UPR-590-T) certain minor numerical results corrected, UPR-590-

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Diagnostic power of future colliders for<i>Z′</i>couplings to quarks and leptons:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal…

Diagnostic power of future colliders forZ′couplings to quarks and leptons:e+e