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**1/2 PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 7
Book Description
We present the first observation of the Z[gamma] →[nu]{bar [nu]}[gamma] 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[gamma] 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[gamma][gamma] and ZZ[gamma] gauge boson couplings at a hadron collider to date, with three constraints being the world's strongest.
Author: Publisher: ISBN: Category : Languages : en Pages : 7
Book Description
We present the first observation of the Z[gamma] →[nu]{bar [nu]}[gamma] 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[gamma] 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[gamma][gamma] and ZZ[gamma] gauge boson couplings at a hadron collider to date, with three constraints being the world's strongest.
Author: Publisher: ISBN: Category : Languages : en Pages : 7
Book Description
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.
Author: Publisher: ISBN: Category : Languages : en Pages : 7
Book Description
The authors present a measurement of the Z[gamma] production cross section and limits on anomalous ZZ[gamma] and Z[gamma][gamma] couplings for form-factor scales of [Lambda] = 750 and 1000 GeV. The measurement is based on 138 (152) candidate events in the ee[gamma] ([mu][mu][gamma]) final state using 320 (290) pb−1 of p{bar p} collisions at √s = 1.96 TeV. The 95% C.L. limits on real and imaginary parts of individual anomalous couplings are
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors performed a direct search for the anomalous ZZ[gamma] and Z[gamma][gamma] couplings by studying p[anti p][yields][ell][ell][gamma]+ X, ([ell]= e, [mu]) events at[radical]s= 1.8 TeV with the D0 detector at the Fermilab Tevatron Collider. A fit to the transverse energy spectrum of the photon in the signal events, based on the data set corresponding to an integrated luminosity of 14.3 pb[sup[minus]1] (13.7 pb[sup[minus]1]) for the electron (muon) channel, yields the following 95% confidence level limits on the anomalous CP-conserving ZZ[gamma] couplings:[vert-bar]h[sub 30][sup Z][vert-bar]
Author: Andrew Warren Askew Publisher: ISBN: Category : Languages : en Pages : 163
Book Description
This thesis details the measurement of the p{bar p} {yields} W{gamma} + X {yields} {mu}{nu}{gamma} + X cross section at {radical}s = 1.96 TeV using the D0 detector at Fermilab, in 134.5 pb{sup -1} of integrated luminosity. From the photon E{sub T} spectrum limits on anomalous couplings of the photon to the W are obtained. At 95% confidence level, limits of -1.05
Author: Publisher: ISBN: Category : Languages : en Pages : 40
Book Description
The cross section for the production of Z[gamma] in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb−1. Events with an oppositely-charged pair of muons or electrons together with an isolated photon are selected. The differential cross section as a function of the photon transverse momentum is measured inclusively and exclusively, where the exclusive selection applies a veto on central jets. The observed cross sections are compatible with the expectations of next-to-next-to-leading-order quantum chromodynamics. Limits on anomalous triple gauge couplings of ZZ[gamma] and Z[gamma][gamma] are set that improve on previous experimental results obtained with the charged lepton decay modes of the Z boson.
Author: Publisher: ISBN: Category : Languages : en Pages : 7
Book Description
The WW[gamma] triple gauge boson coupling parameters are studied using p{bar p} → l[nu][gamma] + X(l = e, [mu]) events at √s = 1.96 TeV. The data were collected with the D0 detector from an integrated luminosity of 162 pb−1 delivered by the Fermilab Tevatron Collider. The cross section times branching fraction for p{bar p} → W([gamma]) + X → l[nu][gamma] + X with E{sub T}{sup [gamma]} > 8 GeV and [Delta]R{sub {ell}{gamma}} > 0.7 is 14.8 ± 1.6(stat) ± 1.0(syst) ± 1.0(lum) pb. The one-dimensional 95% confidence level limits on anomalous couplings are -0.88
![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**1/2 PDF](https://books.google.com/books/content/images/frontcover/37NbwAEACAAJ?fife=w150-h200)
Author: ![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**1/2 PDF](https://books.google.com/books/content/images/frontcover/37NbwAEACAAJ?fife=w80-h100)
Author: ![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 PDF](https://books.google.com/books/content/images/frontcover/lHHKwQEACAAJ?fife=w80-h100)
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Author: ![Measurement of the W Gamma --] Mu Nu Gamma Cross-Section, Limits on Anomalous Trilinear Vector Boson Couplings, and the Radiation Amplitude Zero in P Anti-p Collisions at S**(1/2) PDF](https://books.google.com/books/content/images/frontcover/ny0SkAEACAAJ?fife=w80-h100)
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Author: ![Limits on the Anomalous ZZ[gamma] and Z[gamma][gamma] Couplings in P[anti P] Collisions At[radical] PDF](https://books.google.com/books/content/images/frontcover/HhW7DAEACAAJ?fife=w80-h100)
Author: ![Measurement of the W Gamma --] Mu Nu Gamma Cross-Section, Limits on Anomalous Trilinear Vector Boson Couplings, and the Radiation Amplitude Zero in P Anti-p Collisionsat S**(1/2) PDF](https://books.google.com/books/content/images/frontcover/1JPIjwEACAAJ?fife=w80-h100)
Author: Andrew Warren Askew![Measurement of the Z[gamma] Production Cross Section in Pp Collisions at 8 TeV and Search for Anomalous Triple Gauge Boson Couplings PDF](https://books.google.com/books/content/images/frontcover/5USCAQAACAAJ?fife=w80-h100)
Author: ![Measurement of the P - Anti-p ---] W Gamma + X Cross Section at S**1/2 PDF](https://books.google.com/books/content/images/frontcover/3xkxwAEACAAJ?fife=w80-h100)
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