New Twistor String Theories revisited
arXiv:0902.0550 · doi:10.1016/j.physletb.2009.04.053
Abstract
A gauged version of Berkovits twistor string theory featuring the particle content of N=8 supergravity was suggested by Abou-Zeid, Hull and Mason. The equations of motion for a particular multiplet in the modified theory are examined on the level of basic twistor fields and thereby shown to imply the vanishing of the negative helicity graviton on-shell. Additionally, the restrictions emerging from the equation of motion for the new gauge field \bar{B} reveal the chiral nature of interactions in theories constructed in this manner. Moreover, a particular amplitude in Berkovits open string theory is shown to be in agreement with the corresponding result in Einstein gravity.
15 pages, v2: typos corrected, replaced with published version
References in corpus (4)
Cited by in corpus (9)
- Scattering Amplitudes and Wilson Loops in Twistor Space
- Twistor Strings for N=8 Supergravity
- Unraveling conformal gravity amplitudes
- Superconformal symmetry and maximal supergravity in various dimensions
- Einstein supergravity amplitudes from twistor-string theory
- Conformal Supergravity Tree Amplitudes from Open Twistor String Theory
- Scattering of conformal higher spin fields
- Holonomies of gauge fields in twistor space 2: Hecke algebra, diffeomorphism, and graviton amplitudes
- New Worldsheet Formulae for Conformal Supergravity Amplitudes