199 research outputs found
W-+ H+- production and CP asymmetry at the LHC
The dominant contributions to W-+ H+- production at the LHC are the
tree-level b anti-b annihilation and the gg fusion. We perform for the case of
the complex MSSM a complete calculation of the NLO EW corrections to the b
anti-b annihilation channel and a consistent combination with other
contributions including the standard and SUSY QCD corrections and the gg
fusion, with resummation of the leading radiative corrections to the
bottom-Higgs couplings and the neutral Higgs-boson propagators. We observe a
large CP-violating asymmetry, arising mainly from the gg channel.Comment: 33 pages, 21 figures, a few typos corrected, one reference adde
NLO electroweak corrections to doubly-polarized production at the LHC
We present new results of next-to-leading order (NLO) electroweak corrections
to doubly-polarized cross sections of production at the LHC. The
calculation is performed for the leptonic final state of using the double-pole approximation in the diboson
center-of-mass frame. NLO QCD corrections and subleading contributions from the
, , induced processes are taken into account in
the numerical results. We found that NLO EW corrections are small for angular
distributions but can reach tens of percent for transverse momentum
distributions at high energies, e.g. reaching at
GeV. In these high regions, EW corrections are largest for the
doubly-transverse mode.Comment: 15 pages, 1 table, 5 figure
LES RĂLES DE L'ORGANISATION PAYSANNE ET DE L'ACTION COLLECTIVE POUR LE RENFORCEMENT DES FILIĂRES DE COMMERCIALISATION DES PRODUITS DE «SPĂCIALITĂ LOCALE» LE CAS DU LONGANE «LONG» DE LA PROVINCE DE HUNGYEN AU VIETNAME
N° ISBN - 978-2-7380-1284-5International audienceLe Vietnam est actuellement engagĂ© dans un processus d'intĂ©gration Ă©conomique internationale issue notamment de son adhĂ©sion rĂ©cente Ă l'OMC. Ce processus inclut une ouverture croissante du secteur agro-alimentaire domestique Ă la concurrence des produits importĂ©s. Les exploitations agricoles familiales sont particuliĂšrement fragilisĂ©es par ce nouveau contexte, en raison de le petite taille et du morcellement des superficies cultivables. Les moyens de renforcer la compĂ©titivitĂ© des produits issues de l'agriculture familiale constitue ainsi une des prioritĂ©s pour les recherches vietnamiennes en Ă©conomie agricole. Au Vietnam, le longane âLongâ produit dans la province de Hungyen est un produit de spĂ©cialitĂ© locale, c'est-Ă -dire dont la qualitĂ© spĂ©cifique est reconnue par une partie des consommateurs. NĂ©anmoins, le manque d'action collective entre les exploitations agricoles familiales fragilisent les performances de cette filiĂšre face aux longanes des autres rĂ©gions du Vietnam et les longanes importĂ©s. Cet article prĂ©sente les expĂ©riences d'appui pour le renforcement de la filiĂšre du longane âLongâ de la province de Hungyen au Vietnam vers le dĂ©veloppement de l'indication gĂ©ographique. GrĂące Ă l'appui de GTZ (German Technical Cooperation) et de l'IPSARD (Institut de politique et de stratĂ©gie pour l'agriculture et le dĂ©veloppement rural), la coopĂ©rative de longane Long Hongnam, qui consiste en une organisation de producteurs et de commerçants, a Ă©tĂ© mise sur pied en 2006. La coopĂ©rative a permis la mise en place des actions collectives suivantes: l'application d'un itinĂ©raire technique de production amĂ©liorĂ© incluant le respect de certaines bonnes pratiques agricoles locales (Good agricultural practices ou GAP), et la mise sur pied d'un espace de dialogue avec les commerçants. Grace Ă ce dispositif, les producteurs ont pu augmenter leur prix du vente, amĂ©liorer l'homogĂ©nĂ©itĂ© de la qualitĂ© des produits, et amĂ©liorer leur revenu. La durabilitĂ© de ce dispositif est discutĂ©e. L'article fait le bilan des forces et faiblesses de ces strategies de soutien a l'action collective
Leptonic anomalous magnetic and electric dipole moments in the CP-violating NMSSM with and without inverse seesaw mechanism
PSSA- INTERNATIONAL SOLUTION TO PROTECT THE BIODIVERSITY IN HA LONG BAY - CAT BA MARINE AREA
A Particularly Sensitive Sea Area (PSSA) is an important management tool for biodiversity protection of a marine area. At the time of designation of a Particularly Sensitive Sea Area, an associated protective measure, which meets the requirements of the appropriate legal instrument establishing such measure, must have been approved or adopted by IMO to prevent, reduce, or eliminate the threat or identified vulnerability. Information on each of the Particularly Sensitive Sea Areas (PSSAs) that has been designated by IMO is available on the nautical chart. The Vietnamâs coastal zones and islands are the isolated oceanic habitat of extremely rich marine life in very good condition which is important to the maintenance and dispersal of the marine life of the western tropical Pacific. Vietnam coastal areas are very high risk areas affected by maritime activities, particularly international shipping, therefore in the future identification of some Particularly Sensitive Sea Areas (PSSAs) is necessary. The first Particularly Sensitive Sea Area for Vietnam in Ha Long - Cat Ba was initially proposed in this paper
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