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Search For Exclusive Z Boson Production And Observation Of High Mass P Anti P Gamma Gamma Anti P Pl L Anti P Events In P Anti P Collisions At Su
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Book Synopsis Search for Exclusive Z Boson Production and Observation of High Mass P Anti-p ---] Gamma Gamma Anti-p ---] Pl+ L- Anti-p Events in P Anti-p Collisions at S**1/2 by :
Download or read book Search for Exclusive Z Boson Production and Observation of High Mass P Anti-p ---] Gamma Gamma Anti-p ---] Pl+ L- Anti-p Events in P Anti-p Collisions at S**1/2 written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for exclusive Z boson production in proton-antiproton collisions at √s = 1.96 TeV, using the CDF II detector at Fermilab. We observe no exclusive Z → l+l− candidates and place the first upper limit on the exclusive Z cross section in hadron collisions, [sigma]{sub excl}(Z) 0.96 pb at 95% confidence level. In addition, we observe eight candidate exclusive dilepton events from the quantum electrodynamic process p{bar p} → p[gamma][gamma]{bar p} → pl+l− {bar p}, and measure the cross section for M{sub l{ell}} 40 GeV=c2 and.
Book Synopsis Search for Exclusive Z Boson Production and Observation of High Mass P Anti-p ---] Gamma Gamma Anti-p ---] Pl+ L- Anti-p Events in P Anti-p Collisions at S**ư by :
Download or read book Search for Exclusive Z Boson Production and Observation of High Mass P Anti-p ---] Gamma Gamma Anti-p ---] Pl+ L- Anti-p Events in P Anti-p Collisions at S**ư written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for exclusive Z boson production in proton-antiproton collisions at √s = 1.96 TeV, using the CDF II detector at Fermilab. We observe no exclusive Z → ll− candidates and place the first upper limit on the exclusive Z cross section in hadron collisions,?{sub excl}(Z) 0.96 pb at 95% confidence level. In addition, we observe eight candidate exclusive dilepton events from the quantum electrodynamic process p{bar p} → p??{bar p} → pl+l− {bar p}, and measure the cross section for M{sub l{ell}} 40 GeV=c2 and.
Book Synopsis A Measurement of Z Boson Production and Rapidity Distribution in P - Anti-p Collisions at S**1/2 by :
Download or read book A Measurement of Z Boson Production and Rapidity Distribution in P - Anti-p Collisions at S**1/2 written by and published by . This book was released on 2005 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Physics Index written by and published by . This book was released on 1987 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Particles Decaying Into a Z Boson and a Photon in P Anti-p Collisions at S**1/2 by :
Download or read book Search for Particles Decaying Into a Z Boson and a Photon in P Anti-p Collisions at S**1/2 written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the results of the first search for a new particle X produced in p{bar p} collisions at √s = 1.96 TeV and subsequently decaying to Z[gamma]. The search uses 0.3 fb−1 of data collected with the D0 detector at the Fermilab Tevatron Collider. They set limits on the production cross section times the branching fraction [sigma](p{bar p} → X) x B(X → Z[gamma]) that range from 0.4-3.5 pb at the 95% C.L. for X with invariant masses between 100 and 1000 GeV/c2 over a wide range of X decay widths.
Book Synopsis Search for Hadronic Decays of W and Z Bosons in Photon Events in P Anti-p Collisions at S**ư by :
Download or read book Search for Hadronic Decays of W and Z Bosons in Photon Events in P Anti-p Collisions at S**ư written by and published by . This book was released on 2008 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for W and Z Bosons in the Reaction Anti-p P ---] 2 Jets + Gamma at S**1/2 by :
Download or read book Search for W and Z Bosons in the Reaction Anti-p P ---] 2 Jets + Gamma at S**1/2 written by and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the dijet invariant mass distribution for the reaction {bar p}p → 2 jets+[gamma] + X, at a center of mass energy of 1.8 TeV, using data collected by the CDF experiment. They compare the data to predictions for the production of a photon with two jets, together with the resonant processes {bar p}p → W/Z + [gamma] + X, in which the W and Z bosons decay hadronically. A fit is made to the dijet invariant mass distribution combining the non-resonant background and resonant processes. They use the result to establish a limit for the inclusive production cross section of W/Z + [gamma] with hadronic decay of the W and Z bosons.
Book Synopsis Search for Hadronic Decays of W and Z Bosons in Photon Events in P Anti-p Collisions at S**1/2 by :
Download or read book Search for Hadronic Decays of W and Z Bosons in Photon Events in P Anti-p Collisions at S**1/2 written by and published by . This book was released on 2008 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Z Boson Transverse Momentum in Proton - Anti-proton Collisions at S**1/2 by :
Download or read book Measurement of Z Boson Transverse Momentum in Proton - Anti-proton Collisions at S**1/2 written by and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p{bar p} 2!Z/[gamma]* 2!ee− + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70
Book Synopsis Search for W and Z Bosons in the Reaction Anti-p P ---] 2 Jets + Gamma at S**ư by :
Download or read book Search for W and Z Bosons in the Reaction Anti-p P ---] 2 Jets + Gamma at S**ư written by and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the dijet invariant mass distribution for the reaction {bar p}p → 2 jets+? + X, at a center of mass energy of 1.8 TeV, using data collected by the CDF experiment. They compare the data to predictions for the production of a photon with two jets, together with the resonant processes {bar p}p → W/Z +? + X, in which the W and Z bosons decay hadronically. A fit is made to the dijet invariant mass distribution combining the non-resonant background and resonant processes. They use the result to establish a limit for the inclusive production cross section of W/Z +? with hadronic decay of the W and Z bosons.
Book Synopsis Measurement of Z Gamma Production in Pbar{p} Collisions at Sqrt{s} by :
Download or read book Measurement of Z Gamma Production in Pbar{p} 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: The production rate and kinematics of photons produced in association with Z bosons are studied using 2 fb−1 of p{bar p} collision data collected at the Collider Detector at Fermilab. The cross section for p{bar p} → ll−? + X (where the leptons l are either muons or electrons with dilepton mass M{sub l{ell}}> 40 GeV/c2, and where the photon has transverse energy E{sub T}{sup?}> 7 GeV and is well separated from the leptons) is 4.6 ± 0.2 (stat) ± 0.3 (syst) ± 0.3 (lum) pb, which is consistent with standard model expectations. We use the photon ET distribution from Z{gamma} events where the Z has decayed to?+?−, e+e−, or?{bar {nu}} to set limits on anomalous (non-standard-model) trilinear couplings between photons and Z bosons.
Book Synopsis Search for New Physics in High Mass Electron-positron Events in P Anti-p Collisions at S**ư by :
Download or read book Search for New Physics in High Mass Electron-positron Events in P Anti-p Collisions at S**ư written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950 GeV/c2 using 1.3 fb−1 of p{bar p} collision data at √s=1.96 TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard model-like Z′ with a mass below 923 GeV/c2 and the Randall-Sundrum graviton with a mass below 807 GeV/c2 for k/{bar M}{sub pl} = 0.1, both at the 95% confidence level. Combining with di-photon data excludes the Randall-Sundrum graviton for masses below 889 GeV/c2 for k/{bar M}{sub pl} = 0.1.
Book Synopsis The God Particle by : Leon M. Lederman
Download or read book The God Particle written by Leon M. Lederman and published by Houghton Mifflin Harcourt. This book was released on 2006 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fascinating tour of particle physics from Nobel Prize winner Leon Lederman. At the root of particle physics is an invincible sense of curiosity. Leon Lederman embraces this spirit of inquiry as he moves from the Greeks' earliest scientific observations to Einstein and beyond to chart this unique arm of scientific study. His survey concludes with the Higgs boson, nicknamed the God Particle, which scientists hypothesize will help unlock the last secrets of the subatomic universe, quarks and all--it's the dogged pursuit of this almost mystical entity that inspires Lederman's witty and accessible history.
Book Synopsis Measurement of the Z Gamma ---] Nu Anti-nu Gamma Cross Section and Limits on Anomalous Z Z Gamma and Z Gamma Gamma Couplings in P Anti-p Collisions at S**ư by :
Download or read book Measurement of the Z Gamma ---] Nu Anti-nu Gamma Cross Section and Limits on Anomalous Z Z Gamma and Z Gamma Gamma Couplings in P Anti-p Collisions at S**ư written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first observation of the Z? →?{bar?}? process at the Tevatron at 5.1 standard deviations significance, based on 3.6 fb−1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron p{bar p} Collider at √s = 1.96 TeV. The measured Z? cross section multiplied by the branching fraction of Z → {nu}{bar {nu}} is 32 ± 9(stat. + syst.) ± 2(lumi.) fb for the photon E{sub T}> 90 GeV. It is in agreement with the standard model prediction of 39 ± 4 fb. We set the most restrictive limits on anomalous trilinear Z?? and ZZ? gauge boson couplings at a hadron collider to date, with three constraints being the world's strongest.
Book Synopsis Search for New Physics in High Mass Electron-positron Events in P Anti-p Collisions at S**1/2 by :
Download or read book Search for New Physics in High Mass Electron-positron Events in P Anti-p Collisions at S**1/2 written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Z Boson Production in P + Pb Collisions at \(\sqrt{s_{\mathrm{NN}}} by :
Download or read book Z Boson Production in P + Pb Collisions at \(\sqrt{s_{\mathrm{NN}}} written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With this research, the ATLAS Collaboration measures the inclusive production of Z bosons via their decays into electron and muon pairs in p + Pb collisions at \(\sqrt{s_{\mathrm{NN}}} = 5.02\) TeV at the Large Hadron Collider. The measurements are made using data corresponding to integrated luminosities of 29.4 and 28.1 nb-1 for Z → ee and Z → [mu][mu], respectively. The results from the two channels are consistent and combined to obtain a cross section times the Z → ll branching ratio, integrated over the rapidity region
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