Limits...
Measurements of the [Formula: see text] production cross sections in association with jets with the ATLAS detector.

- Eur Phys J C Part Fields (2015)

Bottom Line: With an integrated luminosity of [Formula: see text], this data set allows for an exploration of a large kinematic range, including jet production up to a transverse momentum of [Formula: see text] and multiplicities up to seven associated jets.The production cross sections for [Formula: see text] bosons are measured in both the electron and muon decay channels.The measurements are compared to numerous QCD predictions including next-to-leading-order perturbative calculations, resummation calculations and Monte Carlo generators.

View Article: PubMed Central - PubMed

Affiliation: CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

ABSTRACT

This paper presents cross sections for the production of a [Formula: see text] boson in association with jets, measured in proton-proton collisions at [Formula: see text] with the ATLAS experiment at the large hadron collider. With an integrated luminosity of [Formula: see text], this data set allows for an exploration of a large kinematic range, including jet production up to a transverse momentum of [Formula: see text] and multiplicities up to seven associated jets. The production cross sections for [Formula: see text] bosons are measured in both the electron and muon decay channels. Differential cross sections for many observables are also presented including measurements of the jet observables such as the rapidities and the transverse momenta as well as measurements of event observables such as the scalar sums of the transverse momenta of the jets. The measurements are compared to numerous QCD predictions including next-to-leading-order perturbative calculations, resummation calculations and Monte Carlo generators.

No MeSH data available.


Related in: MedlinePlus

Distribution of events passing the  selection as a function of the leading jet   for the electron (left) and muon (right) channels. On the data points, the statistical uncertainties are smaller than the size of the points and the systematic uncertainties, described in Sect. 6, are shown by the hashed bands whenever visible. The lower panel shows ratios of the predictions for signal and background to the data, where either ALPGEN (black line) or SHERPA (red dashed line) is used for the signal simulation. The experimental systematic uncertainties are shown by the yellow (inner) band and the combined statistical and systematic uncertainties are shown by the green (outer) band
© Copyright Policy - OpenAccess
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4376471&req=5

Fig2: Distribution of events passing the selection as a function of the leading jet   for the electron (left) and muon (right) channels. On the data points, the statistical uncertainties are smaller than the size of the points and the systematic uncertainties, described in Sect. 6, are shown by the hashed bands whenever visible. The lower panel shows ratios of the predictions for signal and background to the data, where either ALPGEN (black line) or SHERPA (red dashed line) is used for the signal simulation. The experimental systematic uncertainties are shown by the yellow (inner) band and the combined statistical and systematic uncertainties are shown by the green (outer) band

Mentions: The measured and expected distributions of the jet observables are compared at the reconstruction level, separately in the electron and muon channels, using the selection criteria described above. Some example distributions, namely the inclusive jet multiplicity, the and rapidity of the highest- (leading) jet and the summed scalar of the lepton and all jets plus (called ) are shown in Figs. 1, 2, 3 and 4. The data are consistent with the predictions from the ALPGEN and SHERPA generators. The numbers of selected events including the estimated background contributions are summarised in Table 1 for both the electron and muon channels.Table 2


Measurements of the [Formula: see text] production cross sections in association with jets with the ATLAS detector.

- Eur Phys J C Part Fields (2015)

Distribution of events passing the  selection as a function of the leading jet   for the electron (left) and muon (right) channels. On the data points, the statistical uncertainties are smaller than the size of the points and the systematic uncertainties, described in Sect. 6, are shown by the hashed bands whenever visible. The lower panel shows ratios of the predictions for signal and background to the data, where either ALPGEN (black line) or SHERPA (red dashed line) is used for the signal simulation. The experimental systematic uncertainties are shown by the yellow (inner) band and the combined statistical and systematic uncertainties are shown by the green (outer) band
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4376471&req=5

Fig2: Distribution of events passing the selection as a function of the leading jet   for the electron (left) and muon (right) channels. On the data points, the statistical uncertainties are smaller than the size of the points and the systematic uncertainties, described in Sect. 6, are shown by the hashed bands whenever visible. The lower panel shows ratios of the predictions for signal and background to the data, where either ALPGEN (black line) or SHERPA (red dashed line) is used for the signal simulation. The experimental systematic uncertainties are shown by the yellow (inner) band and the combined statistical and systematic uncertainties are shown by the green (outer) band
Mentions: The measured and expected distributions of the jet observables are compared at the reconstruction level, separately in the electron and muon channels, using the selection criteria described above. Some example distributions, namely the inclusive jet multiplicity, the and rapidity of the highest- (leading) jet and the summed scalar of the lepton and all jets plus (called ) are shown in Figs. 1, 2, 3 and 4. The data are consistent with the predictions from the ALPGEN and SHERPA generators. The numbers of selected events including the estimated background contributions are summarised in Table 1 for both the electron and muon channels.Table 2

Bottom Line: With an integrated luminosity of [Formula: see text], this data set allows for an exploration of a large kinematic range, including jet production up to a transverse momentum of [Formula: see text] and multiplicities up to seven associated jets.The production cross sections for [Formula: see text] bosons are measured in both the electron and muon decay channels.The measurements are compared to numerous QCD predictions including next-to-leading-order perturbative calculations, resummation calculations and Monte Carlo generators.

View Article: PubMed Central - PubMed

Affiliation: CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

ABSTRACT

This paper presents cross sections for the production of a [Formula: see text] boson in association with jets, measured in proton-proton collisions at [Formula: see text] with the ATLAS experiment at the large hadron collider. With an integrated luminosity of [Formula: see text], this data set allows for an exploration of a large kinematic range, including jet production up to a transverse momentum of [Formula: see text] and multiplicities up to seven associated jets. The production cross sections for [Formula: see text] bosons are measured in both the electron and muon decay channels. Differential cross sections for many observables are also presented including measurements of the jet observables such as the rapidities and the transverse momenta as well as measurements of event observables such as the scalar sums of the transverse momenta of the jets. The measurements are compared to numerous QCD predictions including next-to-leading-order perturbative calculations, resummation calculations and Monte Carlo generators.

No MeSH data available.


Related in: MedlinePlus