Measurement Of The Ratio Of Inclusive Jet Cross Sections Using The Anti Kt Algorithm With Radius Parameters R
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Release | : 2014 |
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Download Measurement of the Ratio of Inclusive Jet Cross Sections Using the Anti-kt Algorithm with Radius Parameters R Book in PDF, Epub and Kindle
Measurements of the inclusive jet cross section with the anti-kt clustering algorithm are presented for two radius parameters, R=0.5 and 0.7. They are based on data from LHC proton-proton collisions at $\sqrt{s}$ = 7 TeV corresponding to an integrated luminosity of 5.0 inverse femtobarns collected with the CMS detector in 2011. The ratio of these two measurements is obtained as a function of the rapidity and transverse momentum of the jets. Significant discrepancies are found comparing the data to leading-order simulations and to fixed-order calculations at next-to-leading order, corrected for nonperturbative effects, whereas simulations with next-to-leading-order matrix elements matched to parton showers describe the data best.
Author | : Toni Mäkelä |
Publisher | : Springer Nature |
Total Pages | : 173 |
Release | : 2023-05-16 |
Genre | : Science |
ISBN | : 3031297792 |
Download Towards Global Interpretation of LHC Data Book in PDF, Epub and Kindle
This book presents the first global interpretation of measurements of jet and top quark production at the Large Hadron Collider, including a simultaneous extraction of the standard model parameters together with constraints on new physics, unbiased from the assumptions on the standard model parameters. As a long-standing problem, any hadron collider search for new physics depends on parton distribution functions, which cannot be predicted but are extracted experimentally. However, performing the extraction in the same kinematic region where physics beyond the standard model is expected to manifest causes the risk of absorbing the new physics effects into the parton distributions. In this book, the issue is addressed by extending the standard model by effective contributions from quark contact interactions describing new physics and extracting the parton distributions and standard model parameters simultaneously with setting limits on the contact interactions. In the process, the most precise single measurement of the strong coupling constant at the LHC is performed, to date. Furthermore, the book details the first investigation of the mass renormalization scale dependence of the top quark mass, highlighting the importance of a proper scale choice for obtaining robust predictions and improving the precision of experimental analyses. The initial chapters provide the reader with a succinct yet accessible introduction to the relevant theoretical and experimental topics. The presented investigations are at the edge of precision in the phenomenology of high-energy physics and serve to pave the road toward a global interpretation of LHC data.
Author | : Robert Craig Group |
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Total Pages | : 124 |
Release | : 2006 |
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Download Measurement of the Inclusive Jet Cross Section Using the Midpoint Algorithm in Run II at CDF. Book in PDF, Epub and Kindle
A measurement is presented of the inclusive jet cross section using the Midpoint jet clustering algorithm in five different rapidity regions. This is the first analysis which measures the inclusive jet cross section using the Midpoint algorithm in the forward region of the detector. The measurement is based on more than 1 fb{sup -1} of integrated luminosity of Run II data taken by the CDF experiment at the Fermi National Accelerator Laboratory. The results are consistent with the predictions of perturbative quantum chromodynamics.
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Total Pages | : 23 |
Release | : 1976 |
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Download Ausgewählte Daten zur Bevölkerungs- und Wirtschaftsstruktur Book in PDF, Epub and Kindle
Author | : ZEUS Collaboration |
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Release | : 2010 |
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Download Inclusive-jet Cross Sections in NC DIS at HERA and a Comparison of the KT, Anti-kT and SIScone Jet Algorithms Book in PDF, Epub and Kindle
Author | : Raimund Strohmer |
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Total Pages | : 4 |
Release | : 2006 |
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Download Inclusive Jet Cross-sections and Dijet Azimuthal Decorrelations with Book in PDF, Epub and Kindle
We present a preliminary measurement of the inclusive jet cross-sections based on an integrated luminosity of 378 pb{sup -1} acquired with the D0 detector between 2002 and 2004 at a center of mass energy of {radical}s = 1.96 TeV and a measurement of azimuthal dijet decorrelations based on an integrated luminosity of 150 pb{sup -1}. The cross section measurements are based on an iterative cone algorithm with a cone size of R = 0.7. They are performed in two rapidity bins between 0.0 and 0.8. The measurements are in good agreement with next to leading order calculations. The azimuthal angle between the two leading jets is sensitive to higher order QCD effects. The measurement of dijet azimuthal decorrelations therefore probes these effects without explicitly reconstructing more than two jets. Except for large azimuthal angles where soft effects are important the measurements are well described by the next to leading order perturbation theory.
Author | : John Krane |
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Total Pages | : 436 |
Release | : 1998 |
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Download The Ratio of Inclusive Jet Cross Sections at [square Root]s Book in PDF, Epub and Kindle
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Release | : 2013 |
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Download Measurement of the Ratio of the Inclusive 3-jet Cross Section to the Inclusive 2-jet Cross Section in Pp Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
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Release | : 2006 |
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Download Measurement of the Ratio of Inclusive Cross Sections Sigma (p Anti-p --] Z + B-jet) Book in PDF, Epub and Kindle
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Author | : Oriol Saltó Bauzà |
Publisher | : |
Total Pages | : 134 |
Release | : 2008 |
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ISBN | : 9788469166437 |
Download Measurement of Inclusive Jet Cross Sections in Z/Υ*(→e+e−) + Jets Production in Pp̅ Collisions at √s Book in PDF, Epub and Kindle