期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2018)111
关键词
Beyond Standard Model; Effective Field Theories
资金
- CERN Theory Division
- Rita Levi-Montalcini program
- Catalan ICREA Academia Program
- Severo Ochoa excellence program [SO-2012-0234]
- European Commission through the Marie Curie Career Integration Grant via the DESY-IFAE cooperation exchange [631962]
- [FPA2014-55613-P]
- [2014-SGR-1450]
A promising avenue to perform precision tests of the SM at the LHC is to measure differential cross-sections at high invariant mass, exploiting in this way the growth with the energy of the corrections induced by heavy new physics. We classify the leading growing-with-energy effects in longitudinal diboson and in associated Higgs production processes, showing that they can be encapsulated in four real high-energy primary parameters. We assess the reach on these parameters at the LHC and at future hadronic colliders, focusing in particular on the fully leptonic WZ channel that appears particularly promising. The reach is found to be superior to existing constraints by one order of magnitude, providing a test of the SM electroweak sector at the per-mille level, in competition with LEP bounds. Unlike LHC run-1 bounds, which only apply to new physics effects that are much larger than the SM in the high-energy tail of the distributions, the probe we study applies to a wider class of new physics scenarios where such large departures are not expected.
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