<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>T</mml:mi></mml:math>-Odd Asymmetry in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>W</mml:mi><mml:mo>+</mml:mo><mml:mtext mathvariant="bold">jet</mml:mtext></mml:mrow></mml:math>Events at the LHC

Frederix, Rikkert; Hagiwara, Kaoru; Yamada, Toshifumi; Yokoya, Hiroshi

doi:10.1103/physrevlett.113.152001

Cited by 14 publications

(20 citation statements)

References 41 publications

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“…Presently, two formalisms are used frequently to match matrix element (ME) calculations at the NLO accuracy to parton showers (PS), the MC@NLO [6,7] and POWHEG [8,9] methods. Indeed, both methods were used to make predictions for ttH hadroproduction [10,11], and the two predictions were found to be in agreement in Ref. [12].…”

Section: Introductionmentioning

confidence: 74%

Hadroproduction of t anti-t pair with a b anti-b pair using PowHel

Kardos

Trocsanyi

2014

J. Phys. G: Nucl. Part. Phys.

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Section: Introductionmentioning

confidence: 74%

Hadroproduction of t anti-t pair with a b anti-b pair using PowHel

Kardos

Trocsanyi

2014

J. Phys. G: Nucl. Part. Phys.

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“…Since the T-odd correlations in the case of CP violation arise only from the interference between the LO-SM and the NP we isolate events generated from this interference with appropriate MG5 syntax. 1 For both event samples, NLO-SM and LO-SM+NP events, we use the CT14nlo pdf [21], and apply the following selection cuts (15) with the transverse mass defined as M T = 2 p T / p T − p T · / p T . To validate our study we first repeat the NLO-SM calculation at 8 TeV and compare our results to those in [1].…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The observable O T is the same one proposed in Ref. [1] to measure the QCD phase and dubbed x ⊥ in that reference. Since the LHC is a proton-proton collider, the symmetry of the initial state would cause O W and O T to vanish due to the ambiguity in the direction of p beam .…”

Section: T-odd Correlations In Pp → W Jmentioning

confidence: 99%

CP violating anomalous couplings in W jet production at the LHC

Valencia

2017

Phys. Rev. D

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T-odd correlations in W j production at the LHC have been studied recently as a way to measure a phase produced by QCD at NLO by Frederix et. al. [1]. That study found that the induced asymmetry could be observed with 20 fb −1 of 8 TeV data. These T-odd asymmetries can also be induced by CP violating new physics interfering with the SM at LO. In this paper we study this possibility using effective Lagrangians to describe the new physics. We find that the leading contribution arises at dimension eight, and that it necessarily introduces flavor changing neutral currents as well. We discuss the constraints that can be placed on the flavor structure of the new physics operator from studies of FCNC in kaon and B meson decays and then compare the T-odd correlations in W j induced by CP violating new physics to those induced by QCD at NLO. We quantify the level at which these couplings can be probed at the LHC, and find that they will not affect a measurement of the NLO QCD phases.

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“…On the other hand, the m t → ∞ approximation is insufficient for the phenomenological applications. Thereby, many theoretical efforts have been devoted to investigate the finite m t corrections based on this approximation [19,[30][31][32][33][34][35].…”

Section: Pos(ichep2020)084mentioning

confidence: 99%

Higgs boson pair production at N$^3$LO QCD

Chen¹,

Li²,

Shao³

et al. 2020

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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Understanding the Higgs potential by measuring its self-interactions is fundamental in answering several big questions, such as electroweak symmetry breaking, electroweak baryogenesis, electroweak phase transition, and electroweak vacuum stability. The most promising way to probe the Higgs potential is to detect Higgs boson pair final state at high-energy colliders. In this talk, we report a recent perturbative calculation for the di-Higgs gluon-fusion process by taking into account N 3 LO QCD radiative corrections in the approximation of infinite top quark mass limit. Finite top quark mass effects are also incorporated with several approximate schemes, which are known to be crucial in phenomenological applications. We show a very good asymptotic perturbative convergence at O(α 5 s), and demonstrate that the remaining scale uncertainty is only at percent level.

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T-Odd Asymmetry inW+jetEvents at the LHC

Cited by 14 publications

References 41 publications

Hadroproduction of t anti-t pair with a b anti-b pair using PowHel

Hadroproduction of t anti-t pair with a b anti-b pair using PowHel

CP violating anomalous couplings in W jet production at the LHC

Higgs boson pair production at N$^3$LO QCD

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