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arXiv 2402.09223hep-th
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UV完备的四阶导数标量场理论

UV-complete 4-derivative scalar field theory

Bob Holdom

AI总结:

提出一种四阶导数标量场理论作为量子二次引力的代理,证明其可重整化且渐近自由,通过高能极限下的光学定理和微分截面计算探讨正定性约束,并借此将大质量U(1)规范玻色子的Stuckelberg理论扩展为可重整化的自相互作用规范玻色子理论。

摘要:

本文提出了一种具有四阶导数动能项以及四阶导数三次和四次耦合的标量场理论,作为量子二次引力(QQG)的代理。该标量理论是可重整化且渐近自由的,剩余的关键问题是幺正性,或更准确地说正定性,正如QQG中的情况一样。我们扩展了对光学定理和微分截面的计算(均在高能极限下),以展示正定性如何约束该理论。结果还表明微分截面如何能具有良好的高能行为。最后,我们使用该标量理论将大质量U(1)规范玻色子的Stuckelberg理论扩展为自相互作用规范玻色子的可重整化理论。

英文摘要:

A scalar field theory with 4-derivative kinetic terms and 4-derivative cubic and quartic couplings is presented as a proxy for quantum quadratic gravity (QQG). The scalar theory is renormalizable and asymptotically free and the remaining key issue is unitarity, or more precisely positivity, just as it is in QQG. We have extended calculations for the optical theorem and for a differential cross section, both in the high energy limit, to show how positivity constrains the theory. The results also show how it is that differential cross sections can have good high energy behavior. Finally we use the scalar theory to extend the Stuckelberg theory of a massive U(1) gauge boson to a renormalizable theory of a self-interacting gauge boson.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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