Academic Journal
D Physics
| العنوان: | D Physics |
|---|---|
| المؤلفون: | Heavy Quarks, S. Recksiegel, A. Hoang, S. Paul, Svjetlana Fajfer, Jernej Kamenik |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://www.slac.stanford.edu/econf/C0610161/papers/018.pdf. |
| سنة النشر: | 2006 |
| المجموعة: | CiteSeerX |
| الوصف: | Recently a lot of new experimental results on open charm hadrons have appeared. In particular many D meson resonances have been discovered. We discuss strong decays of positive and negative parity charmed mesons within heavy meson chiral pertur-bation theory and study the impact of excited charm states on the determination of the effective meson couplings [1]. Motivated by recent experimental results we also reconsider semileptonic D → P lνl and D → V lνl decays within a model which com-bines heavy quark symmetry and properties of the chiral Lagrangian. Using limits of soft collinear effective theory and heavy quark effective theory we parametrize the semileptonic form factors. We include excited charm meson states in our Lagrangians and determine their impact on the charm meson semileptonic form factors. In some scenarios of new physics an up-like heavy quark appears, which induces FCNC at tree level for the c → uZ transitions. We investigate FCNC effects in D rare de-cays in particular the c → ul+l − transition which might occur in D+ → π+l+l − and D0 → ρ0l+l−. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.9975; http://www.slac.stanford.edu/econf/C0610161/papers/018.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.9975 http://www.slac.stanford.edu/econf/C0610161/papers/018.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.20CCD15E |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |