期刊
EUROPEAN PHYSICAL JOURNAL C
卷 78, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-018-6440-6
关键词
-
资金
- STFC (UK) doctoral studentship
- STFC (UK) [ST/P000258/1]
- Generalitat Valenciana (GV) through the MoEDAL
- Spanish MINECO [FPA2015-65652-C4-1-R]
- Severo Ochoa Excellence Centre [SEV-2014-0398]
- GV Excellence Project [PROMETEO-II/2017/033]
- Leonardo Grant for Researchers and Cultural Creators, BBVA Foundation
In this work we consider point-like monopole production via photon-fusion and Drell-Yan processes in the framework of an effective U(1) gauge field theory obtained from conventional models describing the interaction of magnetically-charged fields with ordinary photons, upon electric-magnetic dualisation. We present arguments based on such dualities which support the conjecture of an effective monopole-velocity-dependent magnetic charge. For the cases of 1 monopoles, we also include a magnetic-moment which is treated as a new phenomenological parameter and, together with the velocity-dependent coupling, allows for a perturbative treatment of the cross-section calculation. We discuss unitarity issues within these effective field theories, in particular we point out that in the spin-1 monopole case only the may restore unitarity. However from an effective-field-theory point of view, this lack of unitarity should not be viewed as an impediment for the phenomenological studies and experimental searches of generic spin-1 monopoles, given that the potential appearance of new degrees of freedom in the ultraviolet completion of such models might restore it. The second part of the paper deals with an appropriate implementation of photon-fusion and Drell-Yan processes based on the above theoretical scenarios into MadGraph UFO models, aimed to serve as a useful tool in interpretations of monopole searches at colliders such as LHC, especially for photon fusion, given that it has not been considered by experimental collaborations so far. Moreover, the experimental implications of such perturbatively reliable monopole searches have been laid out.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据