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相关论文: Nonlinear k_t factorisation: recent progress and p…

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Recent developments in theory and phenomenology relevant to deep inelastic lepton scattering are reviewed, concentrating on the following topics: Predicted behaviour of non-singlet and polarized structure functions at small $x$; Theoretical…

高能物理 - 唯象学 · 物理学 2007-05-23 B. R. Webber

Some of the recent progress in heavy quark physics is reviewed. Special attention is paid to inclusive methods for determining Vub and factorization in nonleptonic B decays. Theoretical predictions for top-antitop production near threshold…

高能物理 - 唯象学 · 物理学 2009-11-07 Mark B. Wise

We consider distributions of unpolarized (polarized) quarks in unpolarized (polarized) hadrons. Our approach is based on QCD factorization. We begin with study of Basic factorization for the parton-hadron scattering amplitudes in the…

高能物理 - 唯象学 · 物理学 2015-06-01 B. I. Ermolaev , M. Greco , S. I. Troyan

We review the extension of the factorization formalism of perturbative QCD to {\it coherent} soft rescattering associated with hard scattering in high energy nuclear collisions. We emphasize the ability to quantify high order corrections…

高能物理 - 唯象学 · 物理学 2009-01-07 Jian-Wei Qiu

The various factorization schemes for hard exclusive processes and the status of their applications is briefly reviewed.

高能物理 - 唯象学 · 物理学 2025-01-22 P. Kroll

We exhibit a method for simultaneously treating recoil and threshold corrections in single-photon inclusive cross sections, working within the formalism of collinear factorization. This approach conserves both the energy and transverse…

高能物理 - 唯象学 · 物理学 2008-11-26 Eric Laenen , George Sterman , Werner Vogelsang

We review selected topics in the field of nonleptonic and rare B meson decays. We concentrate in particular on exclusive channels, discussing recent developments based on the concepts of factorization in QCD and the heavy-quark limit.

高能物理 - 唯象学 · 物理学 2007-05-23 Gerhard Buchalla

We apply the QCD factorization approach to exclusive, radiative B meson decays in the region of small invariant photon mass. We calculate factorizable and non-factorizable corrections to leading order in the heavy quark mass expansion and…

高能物理 - 唯象学 · 物理学 2007-05-23 Thorsten Feldmann

We use a factorization scheme analogous to one proposed for single inclusive forward hadron production to factorize the soft gluon divergence present in the deep inelastic scattering cross sections in the dipole picture at next-to-leading…

高能物理 - 唯象学 · 物理学 2018-06-11 B. Ducloué , H. Hänninen , T. Lappi , Y. Zhu

We provide a rigorous basis for factorization for a large class of non-leptonic two-body $B$-meson decays in the heavy-quark limit. The factorization formula incorporates elements of the naive factorization approach and the hard-scattering…

高能物理 - 唯象学 · 物理学 2009-10-09 M. Beneke , G. Buchalla , M. Neubert , C. T. Sachrajda

We discuss applications of the perturbative QCD approach in the exclusive non-leptonic two body B-meson decays. We briefly review its ingredients and some important theoretical issues on the factorization approaches. PQCD results are…

高能物理 - 唯象学 · 物理学 2008-11-26 Yong-Yeon Keum

We examine the uncertainty of perturbative QCD factorization for hadron structure functions in deep inelastic scattering at a large value of the Bjorken variable xB. We analyze the target mass correction to the structure functions by using…

高能物理 - 唯象学 · 物理学 2014-11-18 Alberto Accardi , Jian-Wei Qiu

High-energy factorization in QCD is investigated beyond leading order and its relationship to the factorization theorem of mass singularities is established to any collinear accuracy. Flavour non-singlet observables are shown to be regular…

高能物理 - 唯象学 · 物理学 2009-10-28 S. Catani , F. Hautmann

Consistent factorization theorems in high-energy scattering near the threshold are presented in the framework of the soft-collinear effective theory. Traditional factorization theorem separates the soft and collinear parts successfully, but…

高能物理 - 唯象学 · 物理学 2015-06-15 Junegone Chay , Chul Kim

Nonnegative matrix factorization is a powerful technique to realize dimension reduction and pattern recognition through single-layer data representation learning. Deep learning, however, with its carefully designed hierarchical structure,…

计算机视觉与模式识别 · 计算机科学 2017-07-31 Zhenxing Guo , Shihua Zhang

We introduce a versatile numerical method for modeling light diffraction in periodically patterned photonic structures containing quadratically nonlinear non-centrosymmetric optical materials. Our approach extends the generalized source…

光学 · 物理学 2015-06-23 Martin Weismann , Dominic F. G. Gallagher , Nicolae C. Panoiu

In this proceedings I review the soft-collinear effective theory (SCET), an effective theory for energetic particles. I also discuss factorization in exclusive and inclusive B-> D^(*)X decays, and tests which can help distinguish whether…

高能物理 - 唯象学 · 物理学 2009-11-07 Iain W. Stewart

It is shown that the colour dipole approach to hard scattering at high energy is fully compatible with k_T factorization at the leading logarithm approximation (in -log x_Bj). The relations between the dipole amplitudes and unintegrated…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Bialas , H. Navelet , R. Peschanski

Many known models, which generally use a factorization hypothesis, give a poor account of the decays B into J/psi + K(*). Usually there is a free overall factor, which is fit to the data, so that tests of the models rely upon ratios. The…

高能物理 - 唯象学 · 物理学 2009-09-25 Carl E. Carlson , J. Milana

We explore the connection between the factorisation of virtual corrections to multi-particle massless gauge theory amplitudes and the problem of subtraction at NNLO and beyond. Taking inspiration from virtual factorisation, we provide a set…

高能物理 - 唯象学 · 物理学 2018-01-22 Lorenzo Magnea , Ezio Maina , Paolo Torrielli , Sandro Uccirati