Detecting quark anomalous electroweak couplings at the LHC

Bin Zhang; Sheng-Zhi Zhao

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Detecting quark anomalous electroweak couplings at the LHC

Sheng-Zhi Zhao, Bin Zhang

High Energy Physics - Phenomenology · Submitted 30 Nov 2015

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim With additional kinematic cuts, we find that the 14 TeV LHC can provide a test of anomalous couplings of $O(0.1-1)\,{\rm TeV}^{-2}$.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,898 input tokens.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.18 · human participants 0.01 · controlled comparison 0.08 · randomized assignment 0.01 · states quantitative result 0.97 · compares with prior results 0.44 · mentions code or data availability 0.02.

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We study the dimension-6 quark anomalous electroweak couplings in the formulation of linearly realized effective Lagrangian. We investigate the constraints on these anomalous couplings from the $pp \rightarrow W^+W^-$ process in detail at the LHC. With additional kinematic cuts, we find that the 14 TeV LHC can provide a test of anomalous couplings of $O(0.1-1)\,{\rm TeV}^{-2}$. The $pp \rightarrow ZZ/Z\gamma/\gamma\gamma$ processes can provide a good complement as they are sensitive to those anomalous couplings which do not affect the $pp \rightarrow W^+W^-$ process. Those processes that only contain anomalous triple vertices, like $p p \to W^* \to l \nu_l$ or $p p \to \gamma^* / Z^* \to l^+ l^-$, can improve the sensitivities to $O(0.01-0.1)\,{\rm TeV}^{-2}$. We also study the kinematic differences between different anomalous couplings and discuss the potential of the $\chi^2$-analysis to distinguish them. Finally, we discuss the detection ability of the possible future 100 TeV proton-proton collider(SPPC), and find that the detection sensitivity is improved by about one order of magnitude compared with the LHC.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We study the dimension-6 quark anomalous electroweak couplings in the formulation of linearly realized effective Lagrangian.	contribution 0.85	0.82	0.03	asserted 0.88
s1	We investigate the constraints on these anomalous couplings from the $pp \rightarrow W^+W^-$ process in detail at the LHC.	contribution 0.97	0.90	0.07	asserted 0.89
s2	With additional kinematic cuts, we find that the 14 TeV LHC can provide a test of anomalous couplings of $O(0.1-1)\,{\rm TeV}^{-2}$.	result 1.00	0.94	0.33	asserted 0.99
s3	The $pp \rightarrow ZZ/Z\gamma/\gamma\gamma$ processes can provide a good complement as they are sensitive to those anomalous couplings which do not affect the $pp \rightarrow W^+W^-$ process.	contribution 0.56	0.52	0.07	asserted 0.85
s4	Those processes that only contain anomalous triple vertices, like $p p \to W^* \to l \nu_l$ or $p p \to \gamma^* / Z^* \to l^+ l^-$, can improve the sensitivities to $O(0.01-0.1)\,{\rm TeV}^{-2}$.	result 0.96	0.72	0.09	asserted 0.55
s5	We also study the kinematic differences between different anomalous couplings and discuss the potential of the $\chi^2$-analysis to distinguish them.	contribution 0.83	0.90	0.04	asserted 0.68
s6	Finally, we discuss the detection ability of the possible future 100 TeV proton-proton collider(SPPC), and find that the detection sensitivity is improved by about one order of magnitude compared with the LHC.	result 0.83	0.93	0.31	asserted 0.98

What kind of paper the classifier reports this is: simulation study 0.53 · evidence from simulation or computation 0.88.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We study the dimension-6 quark anomalous electroweak couplings in the formulation of linearly realized effective Lagrangian. We investigate the constraints on these anomalous couplings from the $pp \rightarrow W^+W^-$ process in detail at the LHC. With additional kinematic cuts, we find that the 14 TeV LHC can provide a test of anomalous couplings of $O(0.1-1)\,{\rm TeV}^{-2}$. The $pp \rightarrow ZZ/Z\gamma/\gamma\gamma$ processes can provide a good complement as they are sensitive to those anomalous couplings which do not affect the $pp \rightarrow W^+W^-$ process. Those processes that only contain anomalous triple vertices, like $p p \to W^* \to l \nu_l$ or $p p \to \gamma^* / Z^* \to l^+ l^-$, can improve the sensitivities to $O(0.01-0.1)\,{\rm TeV}^{-2}$. We also study the kinematic differences between different anomalous couplings and discuss the potential of the $\chi^2$-analysis to distinguish them. Finally, we discuss the detection ability of the possible future 100 TeV proton-proton collider(SPPC), and find that the detection sensitivity is improved by about one order of magnitude compared with the LHC.

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Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

What it cites

Uses data or values from 1 paper

In the recent CMS report(the first paper in [ref] ), the measured $W^+ W^-$ cross section is $60.1 ±4.8$ pb.

Measurement of the W+ W- cross section in pp collisions at sqrt(s) = 8 TeV and limits on anomalous gauge couplings · The $pp →W^+W^-$ process at the 8 TeV and 14 TeV LHC · 1.00

Cites as background 4 papers

There have been amounts of theoretical studies on AGCs [ref] and experimental measurements at the LEP [ref] , the Tevatron [ref] and the LHC [ref] , and anomalous Higgs couplings are also well studied before [ref] and after [ref] the Higgs discovery.

Measurement of the W+ W- cross section in pp collisions at sqrt(s) = 8 TeV and limits on anomalous gauge couplings · Introduction · 0.99
There have been amounts of theoretical studies on AGCs [ref] and experimental measurements at the LEP [ref] , the Tevatron [ref] and the LHC [ref] , and anomalous Higgs couplings are also well studied before [ref] and after [ref] the Higgs discovery.

Global constraints on anomalous triple gauge couplings in effective field theory approach · Introduction · 0.99
There are some model-dependent studies on fermion anomalous couplings, most of them are about top anomalous couplings, like $htt$ type [ref] and $Wtb$ type [ref] .

Boosting the Direct CP Measurement of the Higgs-Top Coupling · Introduction · 0.98

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