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Study Of Jet Transverse Momentum And Jet Rapidity Dependence Of Dijet Azimuthal Decorrelations With The D0 Detector
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Book Synopsis Study of Jet Transverse Momentum and Jet Rapidity Dependence of Dijet Azimuthal Decorrelations with the D0 Detector by : Kiran Chakravarthula
Download or read book Study of Jet Transverse Momentum and Jet Rapidity Dependence of Dijet Azimuthal Decorrelations with the D0 Detector written by Kiran Chakravarthula and published by . This book was released on 2012 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Jet Transverse Momentum and Jet Rapidity Dependence on Dijet Azimuthal Decorrelations by :
Download or read book Study of Jet Transverse Momentum and Jet Rapidity Dependence on Dijet Azimuthal Decorrelations written by and published by . This book was released on 2012 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a collision experiment involving highly energetic particles such as hadrons, processes at high momentum transfers can provide information useful for many studies involving Quantum Chromodynamics (QCD). One way of analyzing these interactions is through angular distributions. In hadron-hadron collisions, the angular distribution between the two leading jets with the largest transverse momentum (pT) is affected by the production of additional jets. While soft radiation causes small differences in the azimuthal angular distribution of the two leading jets produced in a collision event, additional hard jets produced in the event have more pronounced influence on the distribution of the two leading jets produced in the collision. Thus, the dijet azimuthal angular distribution can serve as a variable that can be used to study the transition from soft to hard QCD processes in a collision event. This dissertation presents a triple-differential study involving the azimuthal angular distribution and the jet transverse momenta, and jet rapidities of the first two leading jets. The data used for this research are obtained from proton-antiproton (p$\bar{p}$) collisions occurring at a center of mass energy of 1.96TeV, using the DØ detector in Run II of the Tevatron Collider at the Fermi National Accelerator Laboratory (FNAL) in Illinois, USA. Comparisons are made to perturbative QCD (pQCD) predictions at next-to-leading order (NLO).
Book Synopsis The Azimuthal Decorrelation of Jets Widely Separated in Rapidity by :
Download or read book The Azimuthal Decorrelation of Jets Widely Separated in Rapidity written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the azimuthal decorrelation between jets with pseudorapidity separation up to six units. The data were accumulated using the D0 detector during the 1994-1995 collider run of the Fermilab Tevatron at (square root)s = 1.8 TeV. The data are compared to two parton shower Monte Carlos (HERWIG and PYTHIA) and an analytical prediction using the leading logarithmic BFKL resummation. The final state jets as predicted by the parton showering Monte Carlos describe the data over the entire pseudorapidity range studied. The prediction based on the leading logarithmic BFKL resummation shows more decorrelation than the data as the rapidity interval increases.
Book Synopsis Jet Azimuthal Decorrelation Studies with the D-zero Detector by :
Download or read book Jet Azimuthal Decorrelation Studies with the D-zero Detector written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results on the measurement of the azimuthal decorrelation between jets with pseudorapidity separation up to five units are presented. The data were taken at the Fermi National Accelerator Laboratory during the 1992-1993 collider run with the D[null] detector using[ital p[anti p]] collisions at center-of-mass energy[radical][ital s]= 1.8 TeV. These results are compared to next-to-leading order (NLO) QCD predictions and to two leading-log approximations (LLA) where the leading terms are resummed to all orders in[alpha][sub s]. The final state jets as predicted by NLO QCD show less azimuthal decorrelation than the data. The parton showering LLA Monte Carlo HERWIG describes the data well; an analytical LLA calculation based on Balitsky-Faclin-Kuraev-Lipatov resummation predicts more decorrelation than is present in the data.
Book Synopsis Azimuthal Decorrelation of Jets Widely Separated in Rapidity at by :
Download or read book Azimuthal Decorrelation of Jets Widely Separated in Rapidity at written by and published by . This book was released on 1996 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present preliminary results from an analysis of the azimuthal decorrelation of dijet events as a function of their separation in pseudorapidity using the data collected during the 1994-1995 collider run. These results are compared to a parton shower Monte Carlo (HERWIG) and a theoretical prediction using BFKL resummation.
Book Synopsis Measurement of Dijet Azimuthal Decorrelation in Pp Collisions at $\sqrt{s}$ by :
Download or read book Measurement of Dijet Azimuthal Decorrelation in Pp Collisions at $\sqrt{s}$ written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the decorrelation of azimuthal angles between the two jets with the largest transverse momenta is presented for seven regions of leading jet transverse momentum up to 2.2 TeV. The analysis is based on the proton-proton collision data collected with the CMS experiment at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb$^{-1}$. The dijet azimuthal decorrelation is caused by the radiation of additional jets and probes the dynamics of multijet production. The results are compared to fixed-order predictions of perturbative quantum chromodynamics (QCD), and to simulations using Monte Carlo event generators that include parton showers, hadronization, and multiparton interactions. Event generators with only two outgoing high transverse momentum partons fail to describe the measurement, even when supplemented with next-to-leading-order QCD corrections and parton showers. Much better agreement is achieved when at least three outgoing partons are complemented through either next-to-leading-order predictions or parton showers. This observation emphasizes the need to improve predictions for multijet production.
Book Synopsis The Azimuthal Decorrelation of Jets Widely Separated in Rapidity by : Soon Yung Jun
Download or read book The Azimuthal Decorrelation of Jets Widely Separated in Rapidity written by Soon Yung Jun and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the azimuthal decorrelation between jets with pseudorapidity separation up to six units. The data were accumulated using the DO detector during the 1994-1995 collider run of the Fermilab Tevatron at $\sqrt{s} = 1.8$ TeV. The data are compared to two parton shower Monte Carlos (HERWIG and PYTHIA) where the leading logarithmic terms are resummed to all orders in $\alpha\sb{s}$, and an analytical prediction using the leading logarithmic BFKL resummation. The final state jets as predicted by parton showering Monte Carlo describes the data well over the entire pseudorapidity range studied. The prediction based on the leading logarithmic BFKL resummation shows too much decorrelation as the rapidity interval increases.
Book Synopsis Azimuthal Decorrelation of Jets Widely Separated in Rapidity in Pp Collisions at $\sqrt{s} by :
Download or read book Azimuthal Decorrelation of Jets Widely Separated in Rapidity in Pp Collisions at $\sqrt{s} written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The decorrelation in the azimuthal angle between the most forward and the most backward jets (Mueller-Navelet jets) is measured in data collected in pp collisions with the CMS detector at the LHC at $\sqrt{s} =$ 7 TeV. The measurement is presented in the form of distributions of azimuthal-angle differences, $\Delta\phi$, between the Mueller-Navelet jets, the average cosines of $(\pi-\Delta\phi)$, $2(\pi-\Delta\phi)$, and $3(\pi-\Delta\phi)$, and ratios of these cosines. The jets are required to have transverse momenta, $p_{\mathrm{T}}$, in excess of 35 GeV and rapidities, $
Download or read book Jet Shapes at D0 and CDF. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution of the transverse energy in jets has been measured in p[bar p] collisions at[radical]s= 1.8 TeV at the Fermilab Tevatron collider using the CDF and DO detectors. This measurement of the jet shape is made as a function of jet transverse energy in both experiments and as a function of the jet pseudorapidity in the D0 experiment. Comparisons to Monte Carlo simulations and next-to-leading order partonic QCD calculations, [Omicron]([alpha][sub s][sup 3]), are presented.
Book Synopsis A Study of the Ability of the D0 Detector to Measure the Single Jet Inclusive Cross Section by : Richard Vincent Astur
Download or read book A Study of the Ability of the D0 Detector to Measure the Single Jet Inclusive Cross Section written by Richard Vincent Astur and published by . This book was released on 1992 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large transverese momentum and jet studies by : Maurice Jacob
Download or read book Large transverese momentum and jet studies written by Maurice Jacob and published by . This book was released on 1980 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Azimuthal Correlations of High Transverse Momentum Jets at Next-to-leading Order in the Parton Branching Method by : M. I. Abdulhamid
Download or read book Azimuthal Correlations of High Transverse Momentum Jets at Next-to-leading Order in the Parton Branching Method written by M. I. Abdulhamid and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Jet Correlation Studies as a Function of Rapidity Interval at by :
Download or read book Jet Correlation Studies as a Function of Rapidity Interval at written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 1992--93 collider run of the Fermilab Tevatron the D0 experiment accumulated a large sample of events with jets in the final state. Since the D0 detector can trigger on jets over the entire pseudorapidity range[vert-bar][eta][vert-bar]
Book Synopsis Extraction of Jet Properties from Two Particle Azimuthal Correlations in Pp and AuAu Collisions at [square Root of S Subscript NN] by : Paul Constantin
Download or read book Extraction of Jet Properties from Two Particle Azimuthal Correlations in Pp and AuAu Collisions at [square Root of S Subscript NN] written by Paul Constantin and published by . This book was released on 2004 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two particle azimuthal correlation functions measured in pp and AuAu collisions at [square root of s subscript NN] = 200 GeV at midrapidity with the central arms of the PHENIX detector are analyzed in order to extract the properties of hadronic jets produced in QCD vacuum and highly excited QCD media, like the jet shape parameters j[Subscript T] and k[Subscript T], the jet conditional yields (number of associated hadrons per high p[Subscript T] trigger hadron), and the jet fragmentation function. The analysis of pp data starts with the measurement of the vacuum fragmentation function from which the p[Subscript T] dependence of the mean fragmentation momentum fraction z is extracted. We obtain a constant value of z = 0.74±0.02 for p[Subscript T] above 3 GeV/c. Soft (non-perturbative) parton fragmentation becomes significant below 3 GeV/c and the slope of the fragmentation function is p[Subscript T] dependent in this region. Gaussian fits to jet induced azimuthal correlations are employed to measure the mean jet fragmentation transverse momentum j[Subscript Ty] = 359 ± 11 (stat) ± 6 (syst) MeV/c and the mean partonic transverse momentum k[Subscript Ty] = 964 ± 49 (stat) ± 16 (syst) MeV/c. The analysis of AuAu data is based on azimuthal correlation functions between charged hadrons in the 1.5-3 GeV/c and 3-5 GeV/c p[Subscript T] regions in five classes of collision centrality. The mean jet fragmentation transverse momentum j[Subscript Ty] is centrality independent and consistent with the value in pp data mentioned above. A strong broadening with the centrality of the extracted mean partonic transverse momentum k[Subscript Ty] (multiplied by z[Subscript trigg]) is observed. This is an important finding because hadronic jet quenching through energy loss is expected to be accompanied by a broadening effect. Another important finding is that the jet conditional yields in both the near (delta phi [Difference] 0) and away (delta phi [Difference] pi) regions exhibit a slightly raising trend with centrality. This was also expected to accompany the jet quenching found at higher p[Subscript T] based on simple energy conservation considerations.
Book Synopsis The Azimuthal Decorrelation of Jets Widely Separated in Rapidity as a Test of the BFKL Kernel by : Agustín Sabio Vera
Download or read book The Azimuthal Decorrelation of Jets Widely Separated in Rapidity as a Test of the BFKL Kernel written by Agustín Sabio Vera and published by . This book was released on 2007 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Azimuthal Decorrelation of Jets Widely Separated in Rapidity in Pp Collisions at √s by :
Download or read book Azimuthal Decorrelation of Jets Widely Separated in Rapidity in Pp 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 Jet Fragmentation Transverse Momentum Measurements from Di-hadron Correlations in √s by : Shreyasi Acharya
Download or read book Jet Fragmentation Transverse Momentum Measurements from Di-hadron Correlations in √s written by Shreyasi Acharya and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transverse structure of jets was studied via jet fragmentation transverse momentum (jT) distributions, obtained using two-particle correlations in proton-proton and proton-lead collisions, measured with the ALICE experiment at the LHC. The highest transverse momentum particle in each event is used as the trigger particle and the region 3
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