7,748 research outputs found
Amy D. Dooling and Kristina M. Torgeson, eds. Writing women in modern China : an anthology of women\u27s literature from the early twentieth century
This article reviews the book Writing Women in Modern China: An Anthology of Women\u27s Literature from the Early Twentieth Century edited by Amy D. Dooling and Kristina M. Torgeson
Rapidity resummation for -meson wave functions
Transverse-momentum dependent (TMD) hadronic wave functions develop
light-cone divergences under QCD corrections, which are commonly regularized by
the rapidity of gauge vector defining the non-light-like Wilson lines.
The yielding rapidity logarithms from infrared enhancement need to be resummed
for both hadronic wave functions and short-distance functions, to achieve
scheme-independent calculations of physical quantities. We briefly review the
recent progress on the rapidity resummation for -meson wave functions which
are the key ingredients of TMD factorization formulae for radiative-leptonic,
semi-leptonic and non-leptonic -meson decays. The crucial observation is
that rapidity resummation induces a strong suppression of -meson wave
functions at small light-quark momentum, strengthening the applicability of TMD
factorization in exclusive -meson decays. The phenomenological consequence
of rapidity-resummation improved -meson wave functions is further discussed
in the context of transition form factors at large hadronic recoil.Comment: 6 pages, 2 figures, Conference proceedings for the workshop of
QCD@work, Giovinazzo (Italy), June 16-19, 201
QCD corrections to form factors from light-cone sum rules
We compute perturbative corrections to form factors from QCD
light-cone sum rules with -meson distribution amplitudes. Applying the
method of regions we demonstrate factorization of the vacuum-to--meson
correlation function defined with an interpolating current for pion, at
one-loop level, explicitly in the heavy quark limit. The short-distance
functions in the factorization formulae of the correlation function involves
both hard and hard-collinear scales; and these functions can be further
factorized into hard coefficients by integrating out the hard fluctuations and
jet functions encoding the hard-collinear information. Resummation of large
logarithms in the short-distance functions is then achieved via the standard
renormalization-group approach. We further show that structures of the
factorization formulae for and at
large hadronic recoil from QCD light-cone sum rules match that derived in QCD
factorization. In particular, we perform an exploratory phenomenological
analysis of form factors, paying attention to various sources of
perturbative and systematic uncertainties, and extract with the inverse moment of the -meson distribution amplitude
determined by reproducing obtained
from the light-cone sum rules with distribution amplitudes. Furthermore,
we present the invariant-mass distributions of the lepton pair for () in the whole kinematic region. Finally,
we discuss non-valence Fock state contributions to the form factors
and in brief.Comment: 44 pages, 12 figure
Towards a collaborative MRP for supply chain coordination
The necessity to increase collaboration in nowadays supply chains is emphasized both by academics and practitioners, but most of the supply chains are still managed through cascades of classical MRP/MRP2 systems. Interviews in the aeronautical sector have shown us the existence of many hidden practices aiming at satisfying local constraints which would be better addressed through collaborative processes. We suggest in this communication to define a "collaborative MRP" which would not only provide a better global performance than purely local planning, but take into account the autonomy of the involved partners which is not always respected by centralized pproaches using APS (Advanced Planning Systems)
Reentrant phase transitions of higher-dimensional AdS black holes in dRGT massive gravity
We study the criticality and phase transition in the extended phase
space of anti-de Sitter (AdS) black holes in higher-dimensional de Rham,
Gabadadze and Tolley (dRGT) massive gravity, treating the cosmological constant
as pressure and the corresponding conjugate quantity is interpreted as
thermodynamic volume. Besides the usual small/large black hole phase
transitions, the interesting thermodynamic phenomena of reentrant phase
transitions (RPTs) are observed for black holes in all -dimensional
spacetime when the coupling coefficients of massive potential satisfy
some certain conditions.Comment: 14 pages, several references are added, v2: published in EPJ
Models for supply chain negotiation in collaborative relationships
Nowadays, firms are increasingly building collaborative relationships with their partners in order to improve the global performance of the supply chain in which they are involved. Such collaborative relationships require information exchange or share and negotiation. In this paper, we first formalize some practices of collaboration from case studies of the aeronautical area then suggest some models for negotiation, allowing a supply chain member to publish hidden constraints and share risks/costs in order to achieve a win-win situation
MRP-based negotiation in customer-supplier relationship
In the present uncertain context, increasing the performance of the supply chains requires to define cooperative processes between partners aiming at providing a better answer to the final customer, with a risk shared between partners. Based on an analysis of real practices, we suggest in this communication to take the MRP process as a basis for defining what could be such a cooperative process
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