Properties Of Events Containing A Photon And Several Jets Seen In Pbar P Collisions At Square Roots PDF Download
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Total Pages | : 172 |
Release | : 1993 |
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Download Properties of Events Containing a Photon and Several Jets Seen in P{bar P} Collisions at (square Root)s Book in PDF, ePub and Kindle
The CDF detector is used to investigate the properties of events containing a photon and two jets. The rate of photon +2 jet production is higher than the theoretical calculation, but the shape of the events agrees with QCD predictions.
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Total Pages | : 692 |
Release | : 1995 |
Genre | : Aeronautics |
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Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
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Total Pages | : 153 |
Release | : 1993 |
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Download Properties of Events Containing a Photon and Several Jets Seen in Anti-P P Collisions at S**(1/2) Book in PDF, ePub and Kindle
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Total Pages | : 172 |
Release | : 1993 |
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Download Properties of Events Containing a Photon and Several Jets Seen in P{bar P} Collisions at {radical}s Book in PDF, ePub and Kindle
The CDF detector is used to investigate the properties of events containing a photon and two jets. The rate of photon +2 jet production is higher than the theoretical calculation, but the shape of the events agrees with QCD predictions.
Author | : Bradley Hubbard |
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Total Pages | : 246 |
Release | : 1989 |
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Download Fragmentation Properties of Jets Produced in Pp Collisions at [square Root Sign] S Book in PDF, ePub and Kindle
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Total Pages | : 16 |
Release | : 1983 |
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Download Properties of Jets in High Et Events Produced in Pp Collisions at Square Root S Book in PDF, ePub and Kindle
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Total Pages | : 12 |
Release | : 1993 |
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Download The Center-of-mass Angular Distribution of Prompt Photons Produced in P{bar P} Collisions at (square Root)s Book in PDF, ePub and Kindle
Data taken with the Collider Detector at Fermilab (CDF) during the 1992--1993 run of the Tevatron are used to measure the distribution of the center-of-mass angle between isolated prompt photons and the beam direction. The shape of the angular distribution for photon-jet events is found to differ from the predictions of NLO QCD.
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Release | : 2000 |
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Download Multijet Cross Section Ratios in Pbar P Collisions at Square Root S Book in PDF, ePub and Kindle
We have measured the ratio of the three-jet to two-jet inclusive cross section as a function of the total transverse energy of jets (H[sub T]=[summation]E[sup j][sub T]) in events in p[anti p] collisions at [radical]s=1.8 TeV. We find that for [summation]E[sub T]>200 GeV there is a 70% probability of emitting an additional jet with E[sub T>20 GeV. Using this measurement and the framework of the theory of Quantum Chromodynamics (QCD), we investigated the size of the renormalization scale used to model emission of ''soft'' (low-E[sub T]) jets in multijet final states. The findings indicate that, to order [alpha][sub s][sup 3] in QCD the data favor a scale representative of the hard scattering rather than a softer scale of the order of the third jet's transverse momentum. The preferred scale is [mu][sub R][approx]1/4 H[sub T].
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Total Pages | : 216 |
Release | : 2011 |
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Download Search for Anomalous Production of Photon + Jets + Missing Transverse Energy in $p\bar{p}$ Collisions at $\sqrt{s} Book in PDF, ePub and Kindle
A model-independent signature-based search for physics beyond the Standard Model is performed in the photon~+ jets~+ missing transverse energy channel in \ppbar collisions at a center of mass energy of 1.96 TeV using the CDF II detector. Events with a photon + jets are predicted by the Standard Model and also by many theoretical models beyond the Standard Model. In the Standard Model, the main mechanisms for photon~+ jets production include quark-antiquark annihilation and quark-gluon scattering. No intrinsic missing transverse energy is present in any of these Standard Model processes. In this search, photon~+ $\geq$1 jet and photon~+ $\geq$2 jet events are analyzed with and without a minimum requirement on the missing transverse energy. Numerous mass distributions and kinematic distributions are studied and no significant excess over the background prediction is found. All results indicate good agreement with expectations of the Standard Model.
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Release | : 2005 |
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Download A Study of Parton Distribution Functions with the Use of Photon + Jet Event Kinematics in P[bar P] Collisions at [radical] Book in PDF, ePub and Kindle
We have measured the leading jet pseudorapidity distribution in photon + jet events selected from the inclusive direct photon event sample. The data are from p[bar p] collisions at [radical]s = 1.8 TeV recorded with CDF in the 1992--1993 run. This measurement has been used to study the behavior of current parton distribution sets in selected kinematic regions. The parton distribution sets CTEQ2M and MRSD0 are currently favored by this measurement.