Standard Model Theory

Dittmaier, S.

doi:10.22323/1.314.0581

Cited by 2 publications

(5 citation statements)

References 40 publications

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“…The top quark is treated as massive and unstable throughout, and m t is set to 173.2 GeV as well as Γ t = 1.44262 GeV. 18 The MMHT2014 [200] sets of parton distribution functions (PDFs) are used with n f = 4 or n f = 5 active quark flavours, consistently with the flavour scheme under consideration. N n LO (n = 0, 1, 2) predictions are obtained by using PDFs at the same perturbative order and the evolution of α S at (n + 1)-loop order, as provided by the corresponding PDF set.…”

Section: Precision Electroweak Measurementsmentioning

confidence: 99%

“…[35] and references therein). Let us try to understand the behaviour of the amplitude A salient 58 C-even, couples to gluons -even, Couples to photons C-odd, couples to photons + gluons 6 h one offers different possibilities… 1 (or even better) is achievable [3,11], [13]- [18]. In particular, due to J z = 0 selection order QCD b b production is suppressed by a factor (m b /E T ) 2 , where E T is the transver of the b, b jets.…”

Section: Top-higgsmentioning

confidence: 99%

“…Ref. [17,18]). The current status is that all non-loop induced 2 → 2 SM processes are known at NNLO, including dijet production [19] that has the most complicated subprocess and singularity structure.…”

Section: Introductionmentioning

confidence: 99%

“…OPENLOOPS which relies on the fast and stable tensor reduction of COLLIER[441,442], supported by a rescue system based on quad-precision CUTTOOLS[443] with ONELOOP[2] to deal with exceptional phase-space points 18. Massive top-quark contributions are neglected in the virtual two-loop corrections, but are kept everywhere else in the computations.…”

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confidence: 99%

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Standard Model Physics at the HL-LHC and HE-LHC

Azzi¹,

Farry²,

Nason³

et al. 2019

Preprint

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The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with pp collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the giant leap in precision calculations and modeling of fundamental interactions at hadron colliders have allowed an extraordinary breadth of physics studies including precision measurements of a variety physics processes. The LHC results have so far confirmed the validity of the Standard Model of particle physics up to unprecedented energy scales and with great precision in the sectors of strong and electroweak interactions as well as flavour physics, for instance in top quark physics. The upgrade of the LHC to a High Luminosity phase (HL-LHC) at 14 TeV center-of-mass energy with 3 ab −1 of integrated luminosity will probe the Standard Model with even greater precision and will extend the sensitivity to possible anomalies in the Standard Model, thanks to a ten-fold larger data set, upgraded detectors and expected improvements in the theoretical understanding. This document summarises the physics reach of the HL-LHC in the realm of strong and electroweak interactions and top quark physics, and provides a glimpse of the potential of a possible further upgrade of the LHC to a 27 TeV pp collider, the High-Energy LHC (HE-LHC), assumed to accumulate an integrated luminosity of 15 ab −1 .

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Section: Precision Electroweak Measurementsmentioning

confidence: 99%

Section: Top-higgsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Standard Model Physics at the HL-LHC and HE-LHC

Azzi¹,

Farry²,

Nason³

et al. 2019

Preprint

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“…With the recent advances in NNLO calculations (see a recent review [73]), a significant number of new processes is becoming available for collider-based NNLO strong-coupling determinations.…”

Section: Collider Determinationsmentioning

confidence: 99%

The strong coupling: a theoretical perspective

Salam

2018

From My Vast Repertoire ...

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This contribution to the volume "From My Vast Repertoire -The Legacy of Guido Altarelli " discusses the state of our knowledge of the strong coupling. * On leave from CNRS, UMR 7589, LPTHE, F-75005, Paris, France. 1 This is based on the CT14nnlo PDF set [9], for a centre-of-mass energy of √ s = 13 TeV, taking into account the correlation of the PDFs with αs. Cross sections were evaluated with the ggHiggs code [10] (at N3LO [11]) and the top++ code [12] (at NNLO). In the case of tt production with ABMP16 PDFs [13], the effect is larger, a 14% reduction.

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Standard Model Theory

Cited by 2 publications

References 40 publications

Standard Model Physics at the HL-LHC and HE-LHC

Standard Model Physics at the HL-LHC and HE-LHC

The strong coupling: a theoretical perspective

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