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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (912 download)
Download or read book The Electric Dipole Moment of the Neutron from 2 + 1 Flavor Lattice QCD written by and published by . This book was released on 2015 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Electric Dipole Moment and Tensor Charges from Lattice QCD. written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we present lattice QCD results on the neutron tensor charges including, for the first time, a simultaneous extrapolation in the lattice spacing, volume, and light quark masses to the physical point in the continuum limit. We find that the "disconnected" contribution is smaller than the statistical error in the "connected" contribution. Our estimates in the modified minimal subtraction scheme at 2 GeV, including all systematics, are gd-uT=1.020(76), gdT=0.774(66), guT=-0.233(28), and gsT=0.008(9). The flavor diagonal charges determine the size of the neutron electric dipole moment (EDM) induced by quark EDMs that are generated in many new scenarios of CP violation beyond the standard model. Finally, we use our results to derive model-independent bounds on the EDMs of light quarks and update the EDM phenomenology in split supersymmetry with gaugino mass unification, finding a stringent upper bound of dn
Download or read book Calculation of the Neutron Electric Dipole Moment with Two Dynamical Flavors of Domain Wall Fermions written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of the neutron electric dipole moment ({rvec d}{sub N}) within the framework of lattice QCD with two flavors of dynamical light quarks. The dipole moment is sensitive to the topological structure of the gauge fields, and accuracy can only be achieved by using dynamical, or sea quark, calculations. However, the topological charge evolves slowly in these calculations, leading to a relatively large uncertainty in {rvec d}{sub N}. It is shown, using quenched configurations, that a better sampling of the charge distribution reduces this problem, but because the CP even part of the fermion determinant is absent, both the topological charge distribution and {rvec d}{sub N} are pathological in the chiral limit. We discuss the statistical and systematic uncertainties arising from the topological charge distribution and unphysical size of the quark mass in our calculations and prospects for eliminating them. Our calculations employ the RBC collaboration two flavor domain wall fermion and DBW2 gauge action lattices with inverse lattice spacing a−1 ≈ 1.7 GeV, physical volume V ≈ (2 fm)3, and light quark mass roughly equal to the strange quark mass (m{sub sea} = 0.03 and 0.04). We determine a value of the electric dipole moment that is zero within (statistical) errors,
Author : Kristina D Launey
Publisher : #N/A
ISBN 13 : 9813146060
Total Pages : 393 pages
Book Rating : 4.8/5 (131 download)
Download or read book Emergent Phenomena In Atomic Nuclei From Large-scale Modeling: A Symmetry-guided Perspective written by Kristina D Launey and published by #N/A. This book was released on 2017-07-05 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique collection of reviews that share a common topic, emergent phenomena in atomic nuclei, while revealing the multifaceted nature of the subject, from quarks to heavy nuclei. It tells an amazing story of a decades-long journey of trials and successes, up to present days, with the aim to understand the vast array of experimental data and the fundamentals of strongly interacting fermions. The emphasis is on discovering emergent orderly patterns amidst the overarching complexity of many-particle quantum-mechanical systems. Recent findings are discussed within an interesting framework: a combination of nuclear theory and experiment, of group theory and computational science, and of pivotal models of astonishing simplicity and state-of-the-art models empowered by supercomputers.A special theme resonates throughout the book: the important role of symmetries, exact and approximate, in exposing emergent features and guiding large-scale nuclear modeling. World-renowned experts offer their unique perspective on symmetries in the world of quarks and gluons, and that of protons and neutrons — from chiral symmetry, through spin-isospin and quasi-spin symmetries, to symplectic symmetry, — as well as on the emergent nature of nuclear collectivity, clustering, and pairing, viewed from spectroscopy, microscopic considerations, and first principles. The book provides an excellent foundation that allows researchers and graduate students in physics and applied mathematics to review the current status of the subject, and to further explore the research literature through exhaustive sets of references that also point to studies underpinned by similar techniques in condensed matter and atomic physics along with quantum information.
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ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (929 download)
Download or read book Strong CP Violation written by and published by . This book was released on 1989 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (893 download)
Download or read book Strong CP Violation written by and published by . This book was released on 1989 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: I report on an exploratory calculation of the neutron electric dipole moment induced by a CP violating [theta] -- term in the QCD action within the framework of lattice QCD. 11 refs.
Author : Alexei Prokudin
Publisher : World Scientific
ISBN 13 : 9811214964
Total Pages : 344 pages
Book Rating : 4.8/5 (112 download)
Download or read book Probing Nucleons And Nuclei In High Energy Collisions - Proceedings Of The Int Program Int-18-3 written by Alexei Prokudin and published by World Scientific. This book was released on 2020-05-29 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains proceedings of the 7-week INT program dedicated to the physics of the Electron-Ion Collider (EIC), the world's first polarized electron-nucleon (ep) and electron-nucleus (eA) collider to be constructed in the United States. The 2015 NSAC Long Range Plan recommended EIC as the 'highest priority for new facility construction following the completion of FRIB'. The primary goal of the EIC is to establish precise multi-dimensional imaging of quarks and gluons inside nucleons and nuclei. This includes (i) understanding the spatial and momentum space structure of the nucleon through the studies of TMDs (transverse-momentum-dependent parton distributions), GPD (generalized parton distributions) and the Wigner distribution; (ii) determining the partonic origin of the nucleon spin; (iii) exploring the new quantum chromodynamics (QCD) frontier of ultra-strong gluon fields, with the potential to seal the discovery of a new form of dense gluon matter predicted to exist in all nuclei and nucleons at small Bjorken x — the parton saturation.The program brought together both theorists and experimentalists from Jefferson Lab (JLab), Brookhaven National Laboratory (BNL) along with the national and international nuclear physics communities to assess and advance the EIC physics.
Author : Arghya Ray
Publisher : Lulu.com
ISBN 13 : 1300002719
Total Pages : 27 pages
Book Rating : 4.3/5 ( download)
Download or read book The Neutron Electric Dipole Moment written by Arghya Ray and published by Lulu.com. This book was released on 2012-06-12 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper investigates the experimentation methods in the realm of finding a finite, dependable value for the neutron Electric Dipole Moment (nEDM). Finding a reliable value for the nEDM would elucidate the structure of the Universe from physical perspective. The spectacular possibilities associated with this research would give rise to a new sphere of knowledge of the material world. The paper examines the CP and T violation, Ultra Cold Neutron (UCN) and the modelling of the neutron spin. Also, it focuses on the contemporary models of experiments in this field, including the Room-temperature Experiment. Moreover, we have to solve the difficulties due to statistical and systematic uncertainties too. Until these sorts of uncertainties (for example, the Geometric Phase Effect) are solved, we cannot find out a dependable value for the nEDM.
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ISBN 13 :
Total Pages : 592 pages
Book Rating : 4.0/5 ( download)
Download or read book High Energy Physics Index written by and published by . This book was released on 1991 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fred Jegerlehner
Publisher : Springer Science & Business Media
ISBN 13 : 3540726330
Total Pages : 433 pages
Book Rating : 4.5/5 (47 download)
Download or read book The Anomalous Magnetic Moment of the Muon written by Fred Jegerlehner and published by Springer Science & Business Media. This book was released on 2008 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the present state of knowledge of the anomalous magnetic moment a=(g-2)/2 of the muon. The muon anomalous magnetic moment is one of the most precisely measured quantities in elementary particle physics and provides one of the most stringent tests of relativistic quantum field theory as a fundamental theoretical framework. It allows for an extremely precise check of the standard model of elementary particles and of its limitations.
Author : Sheldon Stone
Publisher : World Scientific
ISBN 13 : 9789810218362
Total Pages : 676 pages
Book Rating : 4.2/5 (183 download)
Download or read book B Decays written by Sheldon Stone and published by World Scientific. This book was released on 1994 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Author : Chuan-Tsung Chan
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (376 download)
Download or read book Neutron Electric Dipole Moment from QCD Sum Rules written by Chuan-Tsung Chan and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (923 download)
Download or read book Electric Dipole Moment of the Neutron on the Two-flavour Skyrme Model written by and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 812 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sigfrido Boffi
Publisher : World Scientific
ISBN 13 : 9814486124
Total Pages : 523 pages
Book Rating : 4.8/5 (144 download)
Download or read book Theoretical Nuclear Physics In Italy, Proceedings Of The 9th Conference On Problems In Theoretical Nuclear Physics written by Sigfrido Boffi and published by World Scientific. This book was released on 2003-04-03 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 9th Conference on Problems in Theoretical Nuclear Physics was organized as part of the project “Theoretical Physics of Nuclei and Many-Body Systems” involving 17 Italian universities and sponsored by the Italian Ministry of Research and University.This volume includes the invited papers on the main subjects of the project and all the individual contributions on special topics. It reviews the work performed in the last two years by the participating Italian community of nuclear theorists. In addition, national and international perspectives are focussed by a panel on the future programmes of the large Italian laboratories and of the experimental community, as well as in a general review by A Faessler.
Author : Dana Alan Browne
Publisher : World Scientific
ISBN 13 : 9814551554
Total Pages : 274 pages
Book Rating : 4.8/5 (145 download)
Download or read book High Performance Computing And Its Applications In The Physical Sciences - Proceedings Of The Mardi Gras '93 Conference written by Dana Alan Browne and published by World Scientific. This book was released on 1994-04-15 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This archival volume is an invaluable collection of rigorously reviewed articles by experts in the fields of gene families, DNA, RNA and proteins, to commemorate the passing of a giant of science — Professor Clement L Markert (1917-1999).In 1959, Clement Markert and Freddy Moller developed the concept of the isozyme, which paved the way for extensive studies of enzyme, protein and gene multiplicity across all living organisms. This important scientific discovery has had a profound influence on the biological sciences for more than 40 years, and has provided the basis for regular international meetings to discuss the biological and biomedical implications of enzyme multiplicity. More recently, this concept has been extended to a wide range of gene families of DNA, RNA, proteins and enzymes.
Author : R. Fernandez Alvarez-Estrada
Publisher : Elsevier
ISBN 13 : 1483257290
Total Pages : 729 pages
Book Rating : 4.4/5 (832 download)
Download or read book EPS - High Energy Physics '89 written by R. Fernandez Alvarez-Estrada and published by Elsevier. This book was released on 2016-06-03 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: EPS - High Energy Physics '89 presents the proceeding of the International Europhysics Conference on High Energy physics, held in Madrid, Spain, on September 6–13, 1989. This book outlines several topics on the interface between cosmology/astrophysics and particle physics. Organized into two parts encompassing 181 chapters, this compilation of papers begins with an overview of the implications of the cosmic light element abundances. This text then examines the various aspects of lattice field theory. Other chapters consider the theoretical evidence of a fundamental length in string theory and outline the main features of the higher order corrections to the heavy quark inclusive cross section. This book discusses as well the theory of heavy quark production in hadron collision. The final chapter deals with the idea of low-energy supersymmetry, which relates the scale of supersymmetry breaking to the origin and stability of the electroweak scale. This book is a valuable resource for astrophysicists, physicists, and scientists.
