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Measurement Of The Differential Dijet Production Cross Section In Proton Proton Collisions At
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Book Synopsis Measurement of the Differential Dijet Production Cross Section in Proton-proton Collisions at by :
Download or read book Measurement of the Differential Dijet Production Cross Section in Proton-proton Collisions at written by and published by . This book was released on 2011 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the double-differential inclusive dijet production cross section in proton-proton collisions at sqrt(s)=7 TeV is presented as a function of the dijet invariant mass and jet rapidity. The data correspond to an integrated luminosity of 36 inverse picobarns, recorded with the CMS detector at the LHC. The measurement covers the dijet mass range 0.2 TeV to 3.5 TeV and jet rapidities up to.
Book Synopsis Measurement of Dijet Cross Sections in Proton-proton Collisions at 7 TeV Center-of-mass Energy Using the ATLAS Detector by :
Download or read book Measurement of Dijet Cross Sections in Proton-proton Collisions at 7 TeV Center-of-mass Energy Using the ATLAS Detector written by and published by . This book was released on 2013 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dijet production is measured in proton--proton collisions with a center-of-mass energy of 7 TeV at the LHC. Double-differential dijet cross sections are presented as functions of the dijet mass and rapidity separation of the two highest-transverse-momentum jets in an event. The data sample collected in 2011 by the ATLAS detector is considered, corresponding to an integrated luminosity of 4.5 fb -1. Jets are defined using the anti-kt algorithm, with two choices of the jet radius parameter, R = 0.4 and R = 0.6. The results are compared with next-to-leading-order (NLO) perturbative calculations, as well as NLO Monte Carlo generator predictions. In both cases, electroweak effects are accounted for. A method for the quantitative comparison of theory predictions with data is presented, employing a frequentist technique. This allows for strong statements on which sets of parton distribution functions best describe the data. A theory of quark compositeness modeled by contact interactions is confronted by the unfolded data using the CLs technique, an example of the versatility of the measurement.
Book Synopsis A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV. by : Bjorn Hinrichsen
Download or read book A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV. written by Bjorn Hinrichsen and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have used 86 pb-1 of data collected with the Collider Detector at Fermilab (CDF) to measure the cross section for production of two or more jets as a function of dijet invariant mass. The data are corrected for detector response and calorimeter resolution effects. Our results are compared with predictions from next-to-leading order Quantum Chromodynamics (QCD) and a measurement performed by the DØ experiment. We see a trend, similar to the excess observed in the inclusive jet cross section at high transverse energy, but find our data to be in agreement with the QCD predictions. The CDF and DØ data are in good agreement.
Book Synopsis The Dijet Cross Section Measurement in Proton-proton Collisions at a Center of Mass Energy of 500 GeV at STAR by : Grant D. Webb
Download or read book The Dijet Cross Section Measurement in Proton-proton Collisions at a Center of Mass Energy of 500 GeV at STAR written by Grant D. Webb and published by . This book was released on 2014 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Inclusive 3-jet Production Differential Cross Section in Proton-proton Collisions at 7 TeV and Determination of the Strong Coupling Constant in the TeV Range by :
Download or read book Measurement of the Inclusive 3-jet Production Differential Cross Section in Proton-proton Collisions at 7 TeV and Determination of the Strong Coupling Constant in the TeV Range written by and published by . This book was released on 2015 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a measurement of the inclusive 3-jet production differential cross section at a proton-proton centre-of-mass energy of 7 TeV using data corresponding to an integrated luminosity of 5 fb$^{-1}$ collected with the CMS detector. The analysis is based on the three jets with the highest transverse momenta. The cross section is measured as a function of the invariant mass of the three jets in a range of 445-3270 GeV and in two bins of the maximum rapidity of the jets up to a value of 2. A comparison between the measurement and the prediction from perturbative QCD at next-to-leading order is performed. Within uncertainties, data and theory are in agreement. The sensitivity of the observable to parameters of the theory such as the parton distribution functions of the proton and the strong coupling constant $\alpha_S$ is studied. A fit to all data points with 3-jet masses larger than 664 GeV gives a value of the strong coupling constant of $\alpha_S(M_\mathrm{Z})$ = 0.1171 $\pm$ 0.0013 (exp) $^{+0.0073}_{-0.0047}$ (theo).
Book Synopsis A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV. by :
Download or read book A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV. written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Bjorn Hinrichsen Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612411746 Total Pages :139 pages Book Rating :4.4/5 (117 download)
Book Synopsis A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV [microform] by : Bjorn Hinrichsen
Download or read book A Measurement of the Dijet Mass Differential Cross Section in Proton-antiproton Collisions at 1.8 TeV [microform] written by Bjorn Hinrichsen and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1999 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Triple-differential Cross Section for Photon+jets Production in Proton-proton Collisions at $\sqrt{s}$ by :
Download or read book Measurement of the Triple-differential Cross Section for Photon+jets Production in Proton-proton Collisions at $\sqrt{s}$ written by and published by . This book was released on 2013 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Double Differential Diject Mass Cross Section in Pp(bar) Collisions at Sqrt(s) by :
Download or read book Measurement of the Double Differential Diject Mass Cross Section in Pp(bar) Collisions at Sqrt(s) written by and published by . This book was released on 2009 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the analysis of the double differential dijet mass cross section, measured at the D0 detector in Batavia, IL, using p{bar p} collisions at a center of mass energy of (square root)s = 1.96 TeV. The dijet mass was calculated using the two highest p{sub T} jets in the event, with approximately 0.7 fb−1 of data collected between 2004 and 2005. The analysis was presented in bins of dijet mass (M{sub JJ}) and rapidity (y), and extends the measurement farther in M{sub JJ} and y than any previous measurement. Corrections due to detector effects were calculated using a Monte Carlo simulation and applied to data. The errors on the measurement consist of statistical and systematic errors, of which the Jet Energy Scale was the largest. The final result was compared to next-to-leading order theory and good agreement was found. These results may be used in the determination of the proton parton distribution functions and to set limits on new physics.
Book Synopsis Measurement of the Double-differential Inclusive Jet Cross Section in Proton-proton Collisions at {u221A}s by :
Download or read book Measurement of the Double-differential Inclusive Jet Cross Section in Proton-proton Collisions at {u221A}s written by and published by . This book was released on 2016 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, a measurement of the double-differential inclusive jet cross section as a function of jet transverse momentum pT and absolute jet rapidity.
Book Synopsis Measurement of Inclusive Jet And Dijet Cross Sections in Proton-Proton Collisions at 7 TeV Centre-Of-Mass Energy with the ATLAS Detector by :
Download or read book Measurement of Inclusive Jet And Dijet Cross Sections in Proton-Proton Collisions at 7 TeV Centre-Of-Mass Energy with the ATLAS Detector written by and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Double-differential Inclusive Jet Cross Section in Proton-proton Collisions at √s by :
Download or read book Measurement of the Double-differential Inclusive Jet Cross Section in Proton-proton Collisions at √s written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Total and Differential W+W- Production Cross Sections in Proton-proton Collisions at $\sqrt{s} by :
Download or read book Measurement of Total and Differential W+W- Production Cross Sections in Proton-proton Collisions at $\sqrt{s} written by and published by . This book was released on 2016 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of W boson pairs in proton-proton collisions at √s = 8 TeV is studied using data corresponding to 20.3 fb-1 of integrated luminosity collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The W bosons are reconstructed using their leptonic decays into electrons or muons and neutrinos. Events with reconstructed jets are not included in the candidate event sample. A total of 6636 WW candidate events are observed. Measurements are performed in fiducial regions closely approximating the detector acceptance. The integrated measurement is corrected for all acceptance effects and for the W branching fractions to leptons in order to obtain the total WW production cross section, which is found to be 71.1 ± 1.1(stat)-5.0+ 5.7(syst) ± 1.4(lumi) pb. This agrees with the next-to-next-to-leading-order Standard Model prediction of 63.2-1.4+1.6(scale) ± 1.2(PDF) pb. Fiducial differential cross sections are measured as a function of each of six kinematic variables. In conclusion, the distribution of the transverse momentum of the leading lepton is used to set limits on anomalous triple-gauge-boson couplings.
Book Synopsis Differential Cross Section Measurements for the Production of a W Boson in Association with Jets in Proton-proton Collisions at $\sqrt S by :
Download or read book Differential Cross Section Measurements for the Production of a W Boson in Association with Jets in Proton-proton Collisions at $\sqrt S written by and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. Furthermore, the data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb-1. The measured cross sections are compared to predictions from Monte Carlo generators, MADGRAPH + PYTHIAand SHERPA, and to next-to-leading-order calculations from BLACKHAT + SHERPA. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.
Book Synopsis Measurement of the Differential and Double-differential Drell-Yan Cross Sections in Proton-proton Collisions at Sqrt{s} by :
Download or read book Measurement of the Differential and Double-differential Drell-Yan Cross Sections in Proton-proton Collisions at Sqrt{s} written by and published by . This book was released on 2013 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5(4.8) inverse femtobarns in the dimuon (dielectron) channel of proton-proton collision data recorded with the CMS detector at the LHC at sqrt{s} = 7 TeV. The measured inclusive cross section in the Z-peak region (60-120 GeV) is \sigma(\ell \ell) = 986.4 +/- 0.6 (stat.) +/- 5.9 (exp. syst.) +/- 21.7 (th. syst.) +/- 21.7 (lum.) pb for the combination of the dimuon and dielectron channels. Differential cross sections $d\sigma/dm$ for the dimuon, dielectron, and combined channels are measured in the mass range 15 to 1500 GeV and corrected to the full phase space. Results are also presented for the measurement of the double-differential cross section d2̂\sigma/dm d.
Book Synopsis Differential Cross Section Measurements for the Production of a W Boson in Association with Jets in Proton{u2013}proton Collisions at {u221A}s by :
Download or read book Differential Cross Section Measurements for the Production of a W Boson in Association with Jets in Proton{u2013}proton Collisions at {u221A}s written by and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. Furthermore, the data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb-1. The measured cross sections are compared to predictions from Monte Carlo generators, MADGRAPH + PYTHIAand SHERPA, and to next-to-leading-order calculations from BLACKHAT + SHERPA. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.
Book Synopsis Measurement of the Dijet Invariant Mass Cross Section in Proton Anti-proton Collisions at Sqrt{s} by :
Download or read book Measurement of the Dijet Invariant Mass Cross Section in Proton Anti-proton Collisions at Sqrt{s} written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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