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ALP的有效场论与对撞机特征。

ALPs effective field theory and collider signatures.

作者信息

Brivio I, Gavela M B, Merlo L, Mimasu K, No J M, Del Rey R, Sanz V

机构信息

1Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.

2Niels Bohr International Academy, University of Copenhagen, 2100 Copenhagen, Denmark.

出版信息

Eur Phys J C Part Fields. 2017;77(8):572. doi: 10.1140/epjc/s10052-017-5111-3. Epub 2017 Aug 28.

DOI:10.1140/epjc/s10052-017-5111-3
PMID:32009845
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6959426/
Abstract

We study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo-) Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at colliders are explored for both scenarios, deriving new bounds and analyzing future prospects, including LHC and High Luminosity LHC sensitivities. Mono-, mono-, -photon plus missing energy and on-shell top final states are most promising signals expected in both frameworks. In addition, non-standard Higgs decays and mono-Higgs signatures are especially prominent and expected to be dominant in non-linear realisations.

摘要

我们研究了标准模型场与一般单态CP奇异（赝）戈德斯通玻色子之间的主要有效相互作用。考虑了电弱对称性破缺的两种可能框架：线性和非线性。对于后一种情况，确定了主要有效算符的基，并与线性展开的基进行了比较。针对这两种情况，探索了对撞机上相关的唯象信号，得出了新的限制并分析了未来前景，包括大型强子对撞机（LHC）和高亮度大型强子对撞机的灵敏度。单喷注、单光子加缺失能量以及壳上顶夸克末态是这两种框架中最有希望出现的信号。此外，非标准希格斯衰变和单希格斯信号尤为突出，预计在非线性实现中占主导地位。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/fa7c643fbb91/10052_2017_5111_Fig15_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/fa7c643fbb91/10052_2017_5111_Fig15_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/b40e5b49c5a0/10052_2017_5111_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/a2924ef63c7b/10052_2017_5111_Fig2_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/931e99c46788/10052_2017_5111_Fig9_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/4632bac822a0/10052_2017_5111_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/dc77494ae98e/10052_2017_5111_Fig12_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20c2/6959426/fa7c643fbb91/10052_2017_5111_Fig15_HTML.jpg

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