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Resonance Production In Quark And Gluon Jets
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Book Synopsis Resonance Production in Quark and Gluon Jets by : Derek William Lane
Download or read book Resonance Production in Quark and Gluon Jets written by Derek William Lane and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation of hadrons from free quarks and gluons is poorly understood and can not be fully explained by current theories. This hadronization process is described using phenomenological models, each reflecting possible scenarios for the QCD dynamics. Electron-positron annihilation at the Z0 resonance provides an ideal environment in which to study hadron production because of the combination of high event rates and clean final states due to the absence of beam and target remnants. Using the particle identification capabilities of the DELPHI detector at the Large Electron-Positron collider (LEP), it is possible to differentiate the production of different hadron species in the final state. This information allows the study of details of the transition from quarks and qluons to stable hadrons. This thesis investigates the hadronization process by comparing the production of [Phi] and K*0 particles produced in quark jets versus those produced in gluon jets at the Z0.
Book Synopsis A Measurement of Quark and Gluon Jet Differences at the Z° Resonance by :
Download or read book A Measurement of Quark and Gluon Jet Differences at the Z° Resonance written by and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have studied differences between quark and gluon jets using 3-jet events in hadronic decays of Z° bosons collected by the SLD experiment at SLAC. Gluon jets were identified in symmetric 3-jet events containing one jet tagged as a heavy quark jet and compared with a mixed sample of quark and gluon jets and also with a mixed sample of light quark (u, d and s) and gluon jets. Their preliminary results show that the particle multiplicity in gluon jets is higher than that in light quark jets. These results are in qualitative agreement with QCD expectations. Differences are also observed in particle energy spectra and the jet widths, consistent with QCD expectations.
Book Synopsis Particle Production in Quark and Gluon Jets by : Beate Stockhausen
Download or read book Particle Production in Quark and Gluon Jets written by Beate Stockhausen and published by . This book was released on 1996 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of Quark and Gluon Jet Differences at the Z0 Resonance by :
Download or read book A Measurement of Quark and Gluon Jet Differences at the Z0 Resonance written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Pair-produced Resonances Decaying to Top Quarks and Jets in Proton-proton Collisions at 8 TeV with the CMS Detector at the LHC by : Gala Nicolas Kaufman
Download or read book Search for Pair-produced Resonances Decaying to Top Quarks and Jets in Proton-proton Collisions at 8 TeV with the CMS Detector at the LHC written by Gala Nicolas Kaufman and published by . This book was released on 2014 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for pair production of new physics resonances decaying into a top quark and a light parton in final states with two leptons, interpreting the results in the context of an R-parity violating supersymmetric model. We use 19.5 fb[-]1 of data collected by the CMS experiment at the LHC from proton-proton collisions at s = 8 TeV in 2012. The experimental signature consists of two leptons (e or [MICRO SIGN]), two jets identified as originating from the decay of a b quark, and two jets identified as coming from light flavor quarks or gluons. We reconstruct and analyze potential resonant decays. The dominant standard model background is top quark pair production with additional jets from initialor final-state radiation. We perform an extended unbinned maximum likelihood fit to the transverse momenta of the two leading light jets and the reconstructed resonance mass. The observation is consistent with the standard model expectation, and we set upper limits on the signal cross section for R-parity violating bottom squarks with masses between 250 and 600 GeV. We exclude R-parity violating bottom squark pair production at the 95% confidence level between 250 GeV and 326 GeV.
Book Synopsis A Study of Quark and Gluon Jet Production Through the Observation of Event Shapes by : Tom T. Hartley
Download or read book A Study of Quark and Gluon Jet Production Through the Observation of Event Shapes written by Tom T. Hartley and published by . This book was released on 1982 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inclusive Meson Resonance Production and Fragmentation of U-quark Jets and Diquarks in High Energy Neutrino-deuterium Interactions by : Chuan-Chuen Chang
Download or read book Inclusive Meson Resonance Production and Fragmentation of U-quark Jets and Diquarks in High Energy Neutrino-deuterium Interactions written by Chuan-Chuen Chang and published by . This book was released on 1981 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis QCD Radiation in Top-Antitop and Z+Jets Final States by : Kiran Joshi
Download or read book QCD Radiation in Top-Antitop and Z+Jets Final States written by Kiran Joshi and published by Springer. This book was released on 2015-06-12 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis contains new research in both experimental and theoretical particle physics, making important contributions in each. Two analyses of collision data from the ATLAS experiment at the LHC are presented, as well as two phenomenological studies of heavy coloured resonances that could be produced at the LHC. The first data analysis was the measurement of top quark-antiquark production with a veto on additional jet activity. As the first detector-corrected measurement of jet activity in top-antitop events it played an important role in constraining the theoretical modelling, and ultimately reduced these uncertainties for ATLAS's other top-quark measurements by a factor of two. The second data analysis was the measurement of Z+2jet production and the observation of the electroweak vector boson fusion (VBF) component. As the first observation of VBF at a hadron collider, this measurement demonstrated new techniques to reliably extract VBF processes and paved the way for future VBF Higgs measurements. The first phenomenological study developed a new technique for identifying the colour of heavy resonances produced in proton-proton collisions. As a by-product of this study an unexpected and previously unnoticed correlation was discovered between the probability of correctly identifying a high-energy top and the colour structure of the event it was produced in. The second phenomenological study explored this relationship in more detail, and could have important consequences for the identification of new particles that decay to top quarks.
Book Synopsis A Comparison of Quark and Gluon Jets Produced in High Energy E + E - Annihilations by : Y. K. Kim
Download or read book A Comparison of Quark and Gluon Jets Produced in High Energy E + E - Annihilations written by Y. K. Kim and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jets of Hadrons written by Werner Hofmann and published by Springer. This book was released on 2006-04-11 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Quarks gluons and jets by : J. Thanh Van Tran
Download or read book Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Quarks gluons and jets written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1979 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resonant Production of High-transverse-momentum Back-to-back Gluon Jets in Pp Collisions. [27 GeV, Cross Sections, Transverse Momentum, Angular Distribution, Proposed Experiment]. by :
Download or read book Resonant Production of High-transverse-momentum Back-to-back Gluon Jets in Pp Collisions. [27 GeV, Cross Sections, Transverse Momentum, Angular Distribution, Proposed Experiment]. written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The calorimetric study of two-gluon jets arising from inclusive production of 0/sup - +/, 0/sup + +/, and 2/sup + +/ b anti b states in hadron--hadron collisions was proposed. Cross sections of approx. = 0.2 x 10−33 cm2 (approx. = 3 x 10−33 cm2) are predicted for pp collisions at .sqrt.s = 27 GeV (60 GeV). Also calculated were the transverse momentum and angular distributions of the jets. 14 references.
Book Synopsis Lambda and K_1hnO_1tnS Production in Quark and Gluon Jets Classified by Energy Ordering by : Bernd Nellen
Download or read book Lambda and K_1hnO_1tnS Production in Quark and Gluon Jets Classified by Energy Ordering written by Bernd Nellen and published by . This book was released on 1997 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quark-gluon Plasma 4 by : Rudolph C. Hwa
Download or read book Quark-gluon Plasma 4 written by Rudolph C. Hwa and published by World Scientific. This book was released on 2010 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a review volume containing articles written by experts on current theoretical topics in the subject of Quark-Gluon Plasma created in heavy-ion collisions at high energy. It is the fourth volume in the series with the same title sequenced numerically. The articles are written in a pedagogical style so that they can be helpful to a wide range of researchers from graduate students to mature physicists who have not worked previously on the subject. A reader should be able to learn from the reviews without having extensive knowledge of the background literature.
Book Synopsis Correlations & Fluctuations in QCD by : N. G. Antoniou
Download or read book Correlations & Fluctuations in QCD written by N. G. Antoniou and published by World Scientific. This book was released on 2003 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a wide spectrum of articles which report the current research progress in topics concerning the dynamics of multiparticle production in high energy collision processes, with emphasis on nonperturbative aspects of QCD. The topics covered are: the phase diagram of QCD and related transitions; correlations and fluctuations in a variety of experiments involving multiparticle production (e+eOCo annihilation, pp collisions and heavy ion collisions); recent theoretical and experimental developments in interferometry and particle correlations; event-by-event fluctuations in high energy experiments; concepts of chaos and complexity in multiparticle dynamics and related phenomenology; relevant theoretical ideas based on QCD as a field theory."
Book Synopsis Correlations And Fluctuations In Qcd, Proceedings Of The 10th International Workshop On Multiparticle Production by : Christos N Ktorides
Download or read book Correlations And Fluctuations In Qcd, Proceedings Of The 10th International Workshop On Multiparticle Production written by Christos N Ktorides and published by World Scientific. This book was released on 2003-09-05 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a wide spectrum of articles which report the current research progress in topics concerning the dynamics of multiparticle production in high energy collision processes, with emphasis on nonperturbative aspects of QCD. The topics covered are: the phase diagram of QCD and related transitions; correlations and fluctuations in a variety of experiments involving multiparticle production (e+e- annihilation, pp collisions and heavy ion collisions); recent theoretical and experimental developments in interferometry and particle correlations; event-by-event fluctuations in high energy experiments; concepts of chaos and complexity in multiparticle dynamics and related phenomenology; relevant theoretical ideas based on QCD as a field theory.
Book Synopsis Data-driven Extraction of the Substructure of Quark and Gluon Jets in Proton-proton and Heavy-ion Collisions by : Yueyang Ying
Download or read book Data-driven Extraction of the Substructure of Quark and Gluon Jets in Proton-proton and Heavy-ion Collisions written by Yueyang Ying and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The modification of quark- and gluon-initiated jets in the quark-gluon plasma produced in heavy-ion collisions is a long-standing question that has not yet received a definitive answer from experiments. In particular, the size of the modifications differs between theoretical models. Therefore a fully data-driven technique is crucial for an unbiased extraction of the quark and gluon jet spectra and substructure. We demonstrate a fully data-driven method for separating quark and gluon contributions to jet observables using a statistical technique called topic modeling. We will also demonstrate that jet substructures, such as jet shapes and jet fragmentation function, could be extracted using this data-driven method. This proof-of-concept study is based on proton-proton and heavy-ion collision events from the PYQUEN generator with statistics accessible in Run 4 of the Large Hadron Collider. These results suggest the potential for an experimental determination of quark- and gluon-jet spectra and their substructures.
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