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Effective Field Theory Approach To Heavy Quark Fragmentation
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Book Synopsis Effective Field Theory Approach to Heavy Quark Fragmentation by :
Download or read book Effective Field Theory Approach to Heavy Quark Fragmentation written by and published by . This book was released on 2016 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using an approach based on Soft Collinear Effective Theory (SCET) and Heavy Quark Effective Theory (HQET) we determine the b-quark fragmentation function from electron-positron annihilation data at the Z-boson peak at next-to-next-to leading order with next-to-next-to leading log resummation of DGLAP logarithms, and next-to-next-to-next-to leading log resummation of endpoint logarithms. This analysis improves, by one order, the previous extraction of the b-quark fragmentation function. We find that while the addition of the next order in the calculation does not much shift the extracted form of the fragmentation function, it does reduce theoretical errors indicating that the expansion is converging. Using an approach based on effective field theory allows us to systematically control theoretical errors. Furthermore, while the fits of theory to data are generally good, the fits seem to be hinting that higher order correction from HQET may be needed to explain the b-quark fragmentation function at smaller values of momentum fraction.
Book Synopsis Effective Field Theories in the Study of K[L Arrow Pi+Pi−e +e−] and Heavy Quark Fragmentation by : John Kenneth Elwood
Download or read book Effective Field Theories in the Study of K[L Arrow Pi+Pi−e +e−] and Heavy Quark Fragmentation written by John Kenneth Elwood and published by . This book was released on 1997 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quark Effective Field Theory at O(1/m_1hn2_1tnQ) by : Christopher Balzereit
Download or read book Heavy Quark Effective Field Theory at O(1/m_1hn2_1tnQ) written by Christopher Balzereit and published by . This book was released on 1996 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quark Effective Theory by : Andrey G. Grozin
Download or read book Heavy Quark Effective Theory written by Andrey G. Grozin and published by Springer Science & Business Media. This book was released on 2004-04-07 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date review also serves as an introduction to Heavy Quark Effective Theory (HQET) - a new approach to heavy quark physics problems in Quantum Chromodynamics (QCD). The book also contains a detailed discussion of the methods of calculation used in HQET, along with numerous illustrations.
Book Synopsis Heavy Quark Effective Field Theory at O(1/m2Q). II. QCD Corrections to the Currents by : Christopher Balzereit
Download or read book Heavy Quark Effective Field Theory at O(1/m2Q). II. QCD Corrections to the Currents written by Christopher Balzereit and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quark Effective Field Theory at O(1/m_1hn2_1tnQ) by : Christopher Balzereit
Download or read book Heavy Quark Effective Field Theory at O(1/m_1hn2_1tnQ) written by Christopher Balzereit and published by . This book was released on 1996 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quark Physics by : Aneesh V. Manohar
Download or read book Heavy Quark Physics written by Aneesh V. Manohar and published by Cambridge University Press. This book was released on 2023-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quarks in Effective Field Theories by : Ambar Jain
Download or read book Heavy Quarks in Effective Field Theories written by Ambar Jain and published by . This book was released on 2009 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heavy quark physics serves as a probe to understand QCD, measure standard model parameters, and look for signs of new physics. We study several aspects of heavy quark systems in an effective field theory framework, including both phenomenological and formal applications. Phenomenological applications include the leading calculation of penguin amplitudes in charmless non-leptonic B-decays to light mesons, including power suppressed effects that are numerically enhanced by the chiral condensate. We compare our determination of the penguin amplitudes with the experimental results. Also, we calculate the heavy quark jet function at two loops, which is an important ingredient for the next-to-next-to-leading-log invariant-mass distribution of jets induced by tt pair production at a future linear collider. Formal applications include: a definition of top mass relevant for measurements that use top induced jets, a new renormalization group equation in an infrared scale intrinsic to heavy quark masses and its generalization for QCD matrix elements, a threshold mass definition which smoothly connects to the MS mass, and a new method to analyze renormalons in the operator product expansion.
Book Synopsis Heavy Quark Effective Theory by : Andrey G Grozin
Download or read book Heavy Quark Effective Theory written by Andrey G Grozin and published by Springer. This book was released on 2014-01-15 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Symmetries and Quantum Corrections in Heavy Quark Effective Field Theory by : Matthew James McIrvin
Download or read book Symmetries and Quantum Corrections in Heavy Quark Effective Field Theory written by Matthew James McIrvin and published by . This book was released on 1997 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effective Field Theories of Heavy-quark Mesons by : Mohammad Hasan M. Alhakami
Download or read book Effective Field Theories of Heavy-quark Mesons written by Mohammad Hasan M. Alhakami and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quark Confinement And The Hadron Spectrum V, Proceedings Of The 5th International Conference by : Nora Serafina Brambilla
Download or read book Quark Confinement And The Hadron Spectrum V, Proceedings Of The 5th International Conference written by Nora Serafina Brambilla and published by World Scientific. This book was released on 2003-08-27 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an update on our understanding of strong interaction, with theoretical and experimental highlights included. It is divided into five sections. The first section is devoted to the investigations into and the latest results on the mechanism of quark confinement. The second and third sections focus respectively on light and heavy quarks (effective field theories, Schwinger-Dyson approach and lattice QCD results). The fourth section deals with the deconfinement mechanism and quark-gluon plasma formation signals. The last section presents highlights of experiments, new physics beyond QCD, and nonperturbative approaches in other theories (strings and SUSY) that may be useful in QCD.
Book Synopsis Quantum Effective Field Theories in Heavy Quark Physics and Phase Transitions in Cosmology by : Clarence L. Y. Lee
Download or read book Quantum Effective Field Theories in Heavy Quark Physics and Phase Transitions in Cosmology written by Clarence L. Y. Lee and published by . This book was released on 1994 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Quarks, QCD, and Effective Field Theory by :
Download or read book Heavy Quarks, QCD, and Effective Field Theory written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The research supported by this OJI award is in the area of heavy quark and quarkonium production, especially the application Soft-Collinear E ective Theory (SCET) to the hadronic production of quarkonia. SCET is an e ffective theory which allows one to derive factorization theorems and perform all order resummations for QCD processes. Factorization theorems allow one to separate the various scales entering a QCD process, and in particular, separate perturbative scales from nonperturbative scales. The perturbative physics can then be calculated using QCD perturbation theory. Universal functions with precise fi eld theoretic de nitions describe the nonperturbative physics. In addition, higher order perturbative QCD corrections that are enhanced by large logarithms can be resummed using the renormalization group equations of SCET. The applies SCET to the physics of heavy quarks, heavy quarkonium, and similar particles.
Author :Clarence L. Y. Lee Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :192 pages Book Rating :4.:/5 (437 download)
Book Synopsis Quantum Effective Field Theories in Heavy Quark Physics and Phase Transitions in Cosmology [microform] by : Clarence L. Y. Lee
Download or read book Quantum Effective Field Theories in Heavy Quark Physics and Phase Transitions in Cosmology [microform] written by Clarence L. Y. Lee and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1994 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy WIMP Effective Theory by : Mikhail P. Solon
Download or read book Heavy WIMP Effective Theory written by Mikhail P. Solon and published by Springer. This book was released on 2016-02-22 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about dark matter’s particle nature and the implications of a new symmetry that appears when a hypothetical dark matter particle is heavy compared to known elementary particles. Dark matter exists and composes about 85% of the matter in the universe, but it cannot be explained in terms of the known elementary particles. Discovering dark matter's particle nature is one of the most pressing open problems in particle physics. This thesis derives the implications of a new symmetry that appears when the hypothetical dark matter particle is heavy compared to the known elementary particles, a situation which is well motivated by the null results of searches at the LHC and elsewhere. The new symmetry predicts a universal interaction between dark matter and ordinary matter, which in turn may be used to determine the event rate and detectable energy in dark matter direct detection experiments. The computation of heavy wino and higgsino dark matter presented in this work has become a benchmark for the field of direct detection. This thesis has also spawned a new field of investigation in dark matter indirect detection, determining heavy WIMP annihilation rates using effective field theory methods. It describes a new formalism for implementing Lorentz invariance constraints in nonrelativistic theories, with a surprising result at 1/M^4 order that contradicts the prevailing ansatz in the past 20 years of heavy quark literature. The author has also derived new perturbative QCD results to provide the definitive analysis of key Standard Model observables such as heavy quark scalar matrix elements of the nucleon. This is an influential thesis, with impacts in dark matter phenomenology, field theory formalism and precision hadronic physics.
Book Synopsis Quark Confinement and the Hadron Spectrum V by : N. Brambilla
Download or read book Quark Confinement and the Hadron Spectrum V written by N. Brambilla and published by World Scientific. This book was released on 2003 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an update on our understanding of strong interaction, with theoretical and experimental highlights included. It is divided into five sections. The first section is devoted to the investigations into and the latest results on the mechanism of quark confinement. The second and third sections focus respectively on light and heavy quarks (effective field theories, Schwinger-Dyson approach and lattice QCD results). The fourth section deals with the deconfinement mechanism and quark-gluon plasma formation signals. The last section presents highlights of experiments, new physics beyond QCD, and nonperturbative approaches in other theories (strings and SUSY) that may be useful in QCD.
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