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/

Zendy Plus

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

Zendy Tools

Zendy Open

We analyse the high-energy behavior of tree-level graviton Compton amplitudesfor particles of mass m and arbitrary spin, concentrating on a combination offorward amplitudes that will be unaffected by eventual cross- couplings toother, higher spins. We first show that for any spin larger than 2, tree-levelunitarity is already violated at energies well below the Planck scale M, if m<< M. We then restore unitarity to this amplitude up to M by adding non-minimalcouplings that depend on the curvature and its derivatives, and modify theminimal description - including particle gravitational quadrupole moments - atscales O(1/m).Comment: 12 pages (Latex file, needs FEYNMAN macros), IASSNS-HEP-94/63,  NYU-TH-94/05/01, CERN-TH.7388/9

Tree-level unitarity constraints on the gravitational couplings of higher-spin massive fields