Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Zykunov, V.

doi:10.1103/physrevd.75.073019

Cited by 80 publications

(49 citation statements)

References 23 publications

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“…The EW corrections change the cross section by 10-20%. The calculation [105] of the weak radiative corrections to the Drell-Yan processes due to additional heavy bosons contributions shows that these corrections are about 2.9% to 9.7% for mass region between 0.2 TeV/c 2 and 5 TeV/c 2 . The phenomenological origin of PDF gives one additional systematic error.…”

Section: Cross Section Measurementsmentioning

confidence: 99%

“…Only preliminary estimates of electroweak nextto-leading order corrections exist for the LHC and √ s > 1TeV/c 2 [104,105]. Currently, we use K EW = 1 for the central values of signal and background cross-sections, and assign an uncertainty of K EW = ±0.10 based on discussions in Refs.…”

Section: Theoretical Uncertaintiesmentioning

confidence: 99%

“…Currently, we use K EW = 1 for the central values of signal and background cross-sections, and assign an uncertainty of K EW = ±0.10 based on discussions in Refs. [104,105].…”

Section: Theoretical Uncertaintiesmentioning

confidence: 99%

See 2 more Smart Citations

CMS Physics Technical Design Report, Volume II: Physics Performance

Bayatian¹,

Chatrchyan²,

Hmayakyan³

et al. 2007

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

718

161

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CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider (LHC). It currently involves more than 2000 physicists from more than 150 institutes and 37 countries. The LHC will provide extraordinary opportunities for particle physics based on its unprecedented collision energy and luminosity when it begins operation in 2007.The principal aim of this report is to present the strategy of CMS to explore the rich physics programme offered by the LHC. This volume demonstrates the physics capability of the CMS experiment. The prime goals of CMS are to explore physics at the TeV scale and to study the mechanism of electroweak symmetry breaking-through the discovery of the Higgs particle or otherwise. To carry out this task, CMS must be prepared to search for new particles, such as the Higgs boson or supersymmetric partners of the Standard Model particles, from the start-up of the LHC since new physics at the TeV scale may manifest itself with modest data samples of the order of a few fb −1 or less. The analysis tools that have been developed are applied to study in great detail and with all the methodology of performing an analysis on CMS data specific benchmark processes upon which to gauge the performance of CMS. These processes cover several Higgs boson decay channels, the production and decay of new particles such as Z and supersymmetric particles, B s production and processes in heavy ion collisions. The simulation of these benchmark processes includes subtle effects such as possible detector miscalibration and misalignment. Besides these benchmark processes, the physics reach of CMS is studied for a large number of signatures arising in the Standard Model and also in theories beyond the Standard Model for integrated luminosities ranging from 1 fb −1 to 30 fb −1 . The Standard Model processes include QCD, B-physics, diffraction, detailed studies of the top quark properties, and electroweak physics topics such as the W and Z 0 boson properties. The production and decay of the Higgs particle is studied for many observable decays, and the precision with which the Higgs boson properties can be derived is determined. About ten different supersymmetry benchmark points are analysed using full simulation. The CMS discovery reach is evaluated in the SUSY parameter space covering a large variety of decay signatures.

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Section: Cross Section Measurementsmentioning

confidence: 99%

Section: Theoretical Uncertaintiesmentioning

confidence: 99%

See 1 more Smart Citation

CMS Physics Technical Design Report, Volume II: Physics Performance

Bayatian¹,

Chatrchyan²,

Hmayakyan³

et al. 2007

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

718

161

View full text Add to dashboard Cite

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“…Electroweak corrections [123][124][125][126][127][128] are not included here, a more thorough analysis exploiting other differential observables [129,130] is left for future studies.…”

Section: Details Of the Calculationmentioning

confidence: 99%

Extra $$Z^{\prime }$$ Z ′ s and $$W^{\prime }$$ W ′ s in heterotic-string derived models

Faraggi

Guzzi

2015

Eur. Phys. J. C

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The ATLAS and CMS collaborations recently recorded possible excess in the di-boson production at the diboson invariant mass at around 2 TeV. Such an excess may be produced if there exist additional Z and/or W at that scale. We survey the extra Z s and W s that may arise from semirealistic heterotic-string vacua in the free fermionic formulation in the seven distinct cases: U (1) Z ∈ SO(10); family universal U (1) Z / ∈ SO(10); non-universal U (1) Z ; hidden sector U (1) symmetries and kinetic mixing; left-right symmetric models; Pati-Salam models; leptophobic and custodial symmetries. Each case has a distinct signature associated with the extra symmetry breaking scale. In one of the cases we explore the discovery potential at the LHC using resonant leptoproduction. The existence of an extra vector boson with the reported properties will significantly constrain the space of allowed string vacua.

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“…The NNLO QCD corrections have been combined with a resummation of next-to-next-to-leading logarithmic effects (NNLL) [16][17][18][19] which is necessary to predict the transverse momentum distribution of the Z boson at small p T and matched with parton showers [20,21]. The NLO electroweak corrections [22][23][24][25] and the mixed QCD-EW corrections [26,27] have also been computed.…”

Section: Introductionmentioning

confidence: 99%

The NNLO QCD corrections to Z boson production at large transverse momentum

Ridder

Gehrmann

Glover

et al. 2016

J. High Energ. Phys.

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Abstract:The transverse momentum distribution of massive neutral vector bosons can be measured to high accuracy at hadron colliders. The transverse momentum is caused by a partonic recoil, and is determined by QCD dynamics. We compute the single and double-differential transverse momentum distributions for fully inclusive Z/γ * production including leptonic decay to next-to-next-to-leading order (NNLO) in perturbative QCD. We also compute the same distributions normalised to the cross sections for inclusive Z/γ * production, i.e. integrated over the transverse momentum of the lepton pair. We compare our predictions for the fiducial cross sections to the 8 TeV data set from the ATLAS and CMS collaborations, which both observed a tension between data and NLO theory predictions, using the experimental cuts and binning. We find that the inclusion of the NNLO QCD effects does not fully resolve the tension with the data for the unnormalised p Z T distribution. However, we observe that normalising the NNLO Z-boson transverse momentum distribution by the NNLO Drell-Yan cross section substantially improves the agreement between experimental data and theory, and opens the way for precision QCD studies of this observable.

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Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Cited by 80 publications

References 23 publications

CMS Physics Technical Design Report, Volume II: Physics Performance

CMS Physics Technical Design Report, Volume II: Physics Performance

Extra $$Z^{\prime }$$ Z ′ s and $$W^{\prime }$$ W ′ s in heterotic-string derived models

The NNLO QCD corrections to Z boson production at large transverse momentum

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