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arXiv 0704.2334hep-th
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由大质量Rarita-Schwinger场介导的自旋为2的场的集合没有相互作用

No interactions for a collection of spin-two fields intermediated by a massive Rarita-Schwinger field

C. Bizdadea, E. M. Cioroianu, D. Cornea, S. O. Saliu, S. C. Sararu

摘要:

在基于局部BRST上同调的形变理论框架下,研究了有质量Rarita-Schwinger场存在下多个自旋为2的无质量场(在自由极限下用Pauli-Fierz作用量之和描述)之间的交叉耦合.在局域性假设、相互作用在耦合常数上的光滑性假设、Poincare不变性假设、Lorentz协变性假设以及各场导数个数不变的假设下,证明了在有质量Rarita-Schwinger场存在的情况下,内空间中具有正定度规的不同引力子之间不存在一致的交叉相互作用.本文还着重讨论了单个Pauli-Fierz场与大质量Rarita-Schwinger场耦合的基本特征。

英文摘要:

The cross-couplings among several massless spin-two fields (described in the free limit by a sum of Pauli-Fierz actions) in the presence of a massive Rarita-Schwinger field are investigated in the framework of the deformation theory based on local BRST cohomology. Under the hypotheses of locality, smoothness of the interactions in the coupling constant, Poincare invariance, Lorentz covariance, and the preservation of the number of derivatives on each field, we prove that there are no consistent cross-interactions among different gravitons with a positively defined metric in internal space in the presence of a massive Rarita-Schwinger field. The basic features of the couplings between a single Pauli-Fierz field and a massive Rarita-Schwinger field are also emphasized.

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