Analysis Pool:CMS_7_JETS
Analysis Pool:ATLAS_7_JETS
List of all the analyses which were tried:
3-jet cross section with 7 TeV data (ATLAS_2014_I1326641)
Inspire | HepData | arXiv:1411.1855 [hep-ex] | doi:10.1140/epjc/s10052-015-3363-3 | Eur.Phys.J. C75 (2015) 228
Double-differential three-jet production cross-sections have been measured in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 7\,$TeV using the ATLAS detector at the Large Hadron Collider. The measurements are presented as a function of the three-jet mass ($m_{jjj}$), in bins of the sum of the absolute rapidity separations between the three leading jets ($\left|Y^\ast\right|$). Invariant masses extending up to 5\,TeV are reached for $8<\left|Y^\ast\right|<10$. These measurements use a sample of data recorded using the ATLAS detector in 2011, which corresponds to an integrated luminosity of $4.51\,\text{fb}^{-1}$. Jets are identified using the anti-$k_\text{t}$ algorithm with two different jet radius parameters, $R=0.4$ and $R=0.6$.
Measurement of the inclusive jet cross-section at 7 TeV (ATLAS_2014_I1325553)
Inspire | HepData | arXiv:1410.8857 [hep-ex]
Measurement of the inclusive jet cross-section in proton--proton collisions at a centre-of-mass energy of 7 TeV using a data set corresponding to an integrated luminosity of 4.5/fb collected with the ATLAS detector at the Large Hadron Collider in 2011. Jets are identified using the anti-$k_t$ algorithm with radius parameter values of 0.4 and 0.6. The double-differential cross-sections are presented as a function of the jet transverse momentum and the jet rapidity, covering jet transverse momenta from 100 GeV to 2 TeV.
Measurements of jet vetoes and azimuthal decorrelations in dijet events produced in pp collisions at $\sqrt{s}$ = 7 TeV using the ATLAS detector (ATLAS_2014_I1307243)
Inspire | HepData | EPJ C74,3117 (2014) | doi:10.1140/epjc/s10052-014-3117-7 | arXiv:hep-ex/1407.5756
Additional jet activity in dijet events is measured using $pp$ collisions at ATLAS at a centre-of-mass energy of 7 TeV, for jets reconstructed using the anti-kt algorithm with radius parameter R=0.6. This is done using variables such as the fraction of dijet events without an additional jet in the rapidity interval bounded by the dijet subsystem and correlations between the azimuthal angles of the dijets. They are presented, both with and without a veto on additional jet activity in the rapidity interval, as a function of the mean transverse momentum of the dijets and of the rapidity interval size. The double differential dijet cross section is also measured as a function of the interval size and the azimuthal angle between the dijets. These variables probe differences in the approach to resummation of large logarithms when performing QCD calculations. The data are compared to POWHEG, interfaced to the PYTHIA 8 and HERWIG parton shower generators, as well as to HEJ with and without interfacing it to the ARIADNE parton shower generator. None of the theoretical predictions agree with the data across the full phase-space considered; however, POWHEG+PYTHIA 8 and HEJ+ARIADNE are found to provide the best agreement with the data. These measurements use the full data sample collected with the ATLAS detector in 7 TeV $pp$ collisions at the LHC and correspond to integrated luminosities of 36.1 pb$^-1$ and 4.5 fb$^-1$ for data collected during 2010 and 2011 respectively.
High-mass dijet cross section (ATLAS_2014_I1268975)
Inspire | HepData | arXiv:1312.3524 [hep-ex] | JHEP 1405 (2014) 059
Double-differential dijet cross sections measured in pp collisions at the LHC with a 7 TeV centre-of-mass energy are presented as functions of dijet mass and rapidity separation of the two highest-pT jets. These measurements are obtained using data corresponding to an integrated luminosity of 4.5/fb, recorded by the ATLAS detector in 2011. The data are corrected for detector effects so that cross sections are presented at the particle level. Cross sections are measured up to 5 TeV dijet mass using jets reconstructed with the anti-kt algorithm for values of the jet radius parameter of 0.4 and 0.6. The cross sections are compared with next-to-leading-order perturbative QCD calculations by NLOJET++ corrected to account for non-perturbative effects. Comparisons with POWHEG predictions, using a next-to-leading-order matrix element calculation interfaced to a parton-shower Monte Carlo simulation, are also shown. Electroweak effects are accounted for in both cases. The quantitative comparison of data and theoretical predictions obtained using various parameterizations of the parton distribution functions is performed using a frequentist method. An example setting a lower limit on the compositeness scale for a model of contact interactions is presented, showing that the unfolded results can be used to constrain contributions to dijet production beyond that predicted by the Standard Model.
Ratios of jet pT spectra, which relate to the ratios of inclusive, differential jet cross sections (CMS_2014_I1298810)
Inspire | HepData | arXiv:1406.0324 | CMS-SMP-13-002 | CERN-PH-EP-2014-068 | Accepted by Phys. Rev. D
Ratios of jet transverse momentum spectra. The jets objects are defined using the anti-$k_{\text{T}}$ algorithm with radii of R = 0.5 and R = 0.7. The ratios are given for six 0.5 wide rapidity regions ranging from 0.0 to 3.0 and relate the ratio of inclusive, differential jet cross sections.
Studies of 4-jet production in proton-proton collisions at $\sqrt{s} = 7$ TeV (CMS_2013_I1273574)
Inspire | HepData | CMS-FSQ-12-013 | CERN-PH-EP-2013-229 | arXiv:1312.6440 | Submitted to Phys. Rev. D
Measurements are presented of exclusive 4-jet production cross sections as a function of the transverse momentum $p_T$, pseudorapidity $\eta$, as well as of correlations in azimuthal angle and $p_T$ balance among the jets. The data sample was collected at a centre-of-mass energy of 7 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb$^{-1}$. The jets are reconstructed with the anti-$k_T$ jet algorithm in a range of $|\eta|<4.7$.
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