期刊
PHYSICAL REVIEW D
卷 101, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.113003
关键词
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资金
- Conselho Nacional de Desenvolvimento Centifico e Tecnologico (CNPq)
- Fundacao de Amparo 'a Pesquisa do Estado de Sao Paulo (FAPESP) [2019/04837-9]
- FAPESP [2018/16921-1]
- National Science Foundation [PHY-1620628]
- MINECO [FPA2016-76005-C2-1-P]
- EU [FP10 ITN ELUSIVES (H2020-MSCA-ITN-2015-674896)]
- AGAUR (Generalitat de Catalunya) [2017-SGR-929]
We obtain the partial-wave unitarity constraints on the lowest-dimension effective operators which generate anomalous quartic gauge couplings but leave the triple gauge couplings unaffected. We consider operator expansions with linear and nonlinear realizations of the electroweak symmetry and explore the multidimensional parameter space of the coefficients of the relevant operators: 18 dimension-eight operators in the linear expansion and 5 O(p(4)) operators in the derivative expansion. We study two-to-two scattering of electroweak gauge bosons and Higgs bosons, taking into account all coupled channels and all possible heicity amplitudes for the J = 0, 1 partial waves. In general, the bounds degrade by factors of a few when several operator coefficients arc considered to be nonvanishing simultaneously. However, this requires considering constraints from both J = 0 and J =1 partial waves for some sets of operators.
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