Central exclusive production of W boson pairs in pp collisions at the LHC in hadronic and semi-leptonic final states

被引：7

作者：

Baldenegro, C. ^{[1
]}

Biagi, G. ^{[1
,2
]}

Legras, G. ^{[1
,3
]}

Royon, C. ^{[1
]}

机构：

[1] Univ Kansas, Dept Phys & Astron, 1251 Wescoe Hall Dr, Lawrence, KS 66047 USA

[2] Ecole Cent Paris, 3 Rue Joliot Curie, F-91190 Gif Sur Yvette, France

[3] Ecole Mines Paris, 60 Blvd St Michel, F-75272 Paris, France

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 12期

关键词：

Phenomenological Models; GAMMA CROSS-SECTION; COUPLINGS; LIMITS; PHYSICS; PROBE;

D O I：

10.1007/JHEP12(2020)165

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present a phenomenology study on central exclusive production of W+W- boson pairs in proton-proton collisions at the Large Hadron Collider at 14TeV using the forward proton detectors, such as the ATLAS Forward Proton or the CMS-TOTEM Precision Proton Spectrometer detectors. Final states where at least one of the W bosons decay hadronically in a large-radius jet are considered. The latter extends previous efforts that consider solely leptonic final states. A measurement of exclusive W+ W- also allows us to further constrain anomalous quartic gauge boson interactions between photons and W bosons. Expected limits on anomalous quartic gauge couplings a(0,C)(W) associated to dimension-six effective operators are derived for the hadronic, semi-leptonic, and leptonic final states. It is found that the couplings can be probed down to one-dimensional values of a(0)(W) = 3.7x10(-7) GeV-2 and aWC = 9.2x10(-7) GeV-2 at 95% CL at an integrated luminosity of 300 fb(-1) by combining all final states, compared to values of about a(0)(W) = 4x10(-6) GeV-2 and a(C)(W) = 1 x 10(-5) GeV-2 at 95% CL expected for the leptonic channel alone.

引用

页数：32

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