New higher-derivative couplings in 4D N=2 supergravity

作者：Butter Daniel^*; Kuzenko Sergei M

来源：The Journal of High Energy Physics, 2011, (3): 047.

DOI：10.1007/JHEP03(2011)047

• Extended Supersymmetry
• Superspaces
• Supergravity Models

Using the off-shell formulation for general N = 2 supergravity-matter systems developed in arXiv:0905.0063, we propose a construction to generate a restricted chiral superfield from any real weight-zero projective multiplet L. One can choose L to be composed of tensor multiplets, O(2n) multiplets, with n = 2, 3, ... , and polar hypermultiplets. In conjunction with the standard procedure to induce a N = 2 linear multiplet from any chiral weight-one scalar, we obtain a powerful mechanism to generate higher-derivative couplings in supergravity. In the case that L is a homogeneous function of n tensor multiplets of degree zero, we show that our construction is equivalent to that developed by de Wit and Saueressig in arXiv:hep-th/0606148 using the component superconformal tensor calculus. We also work out nontrivial examples with L composed of O(2n) and tensor multiplets.

• 出版日期2011-3