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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We examine the contribution of general Z*ZH and gamma*ZH three-pointinteractions arising from new physics to the Higgs production process e+e- ->HZ. From Lorentz covariance, each of these vertices may be written in terms ofthree (complex) form factors, whose real and imaginary parts together make sixindependent couplings. We take into account possible longitudinal or transversebeam polarization likely to be available at a linear collider. We show howpartial cross sections and angular asymmetries in suitable combinations withappropriate beam polarizations, can be used to disentangle various couplingsfrom one another. A striking result is that using transverse polarization, oneof the gammaZH couplings, not otherwise accessible, can be determinedindependently of all other couplings. Transverse polarization also helps in theindependent determination of a combination of two other couplings, in contrastto a combination of four accessible with unpolarized or longitudinallypolarized beams. We also obtain the sensitivity of the various observables inconstraining the new-physics interactions at a linear collider operating at acentre-of-mass energy of 500 GeV with longitudinal or transverse polarization.

Angular distributions as a probe of anomalous ZZH and gammaZH interactions at a linear collider with polarized beams