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Model independent study for the anomalous quartic WWγγ couplings at Future Electron-Proton Colliders
Nuclear Physics B ( IF 2.8 ) Pub Date : 2020-06-29 , DOI: 10.1016/j.nuclphysb.2020.115102
V. Ari , E. Gurkanli , A.A. Billur , M. Koksal

The Large Hadron Electron Collider and the Future Circular Collider-hadron electron with high center-of-mass energy and luminosity allow to better understand the Standard Model and to examine new physics beyond the Standard Model in the electroweak sector. Multi-boson processes permit for a measurement of the gauge boson self-interactions of the Standard Model that can be used to determine the anomalous gauge boson couplings. For this purpose, we present a study of the process epνeγγj at the Large Hadron Electron Collider with center-of-mass energies of 1.30, 1.98 TeV and at the Future Circular Collider-hadron electron with center-of-mass energies of 7.07, 10 TeV to interpret the anomalous quartic WWγγ gauge couplings using a model independent way in the framework of effective field theory. We obtain the sensitivity limits at 95% Confidence Level on 13 different anomalous couplings arising from dimension-8 operators. The best limit in fMi/Λ4 (i=0,1,2,3,4,5,7) parameters is obtained for fM2/Λ4 parameter while the best sensitivity derived on fTi/Λ4 (i=0,1,2,5,6,7) parameters is obtained for fT5/Λ4. In addition, this study is the first report on the anomalous quartic couplings determined by effective Lagrangians at ep colliders.



中文翻译:

未来电子-质子对撞机的异常四次WWγγ耦合的模型独立研究

具有高质心能量和光度的大型强子电子对撞机和未来的圆形对撞机-强子电子可以更好地理解标准模型,并研究电弱领域超越标准模型的新物理学。多玻色子过程允许对标准模型的量规玻色子自相互作用进行测量,该相互作用可用于确定异常量规玻色子耦合。为此,我们对过程进行了研究ËpνËγγĴ 在质子中心能量为1.30、1.98 TeV的大型强子对撞机上以及在未来的质子中心能量为7.07、10 TeV的圆形对撞机强子上解释异常四次方 w ^w ^γγ在有效场论的框架内使用独立于模型的方式测量量具耦合。我们获得了对8维算子产生的13种不同异常耦合的敏感度限制,置信度为95%。最佳极限F中号一世/Λ4一世=01个23457)参数是针对 F中号2/Λ4 参数,而最佳灵敏度源自 FŤ一世/Λ4一世=01个2567)参数是针对 FŤ5/Λ4。此外,这项研究是由有效拉氏在确定异常四次联轴器的第一份报告EP撞机。

更新日期:2020-06-29
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