English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study nonperturbative corrections to the inclusive rare decay B -> X_s l^+l^- by performing an operator product expansion (OPE) to O(1/m_b^3). The valuesof the matrix elements entering at this order are unknown and introduceuncertainties into physical quantities. We study uncertainties introduced intothe partially integrated rate, moments of the hadronic spectrum, as well as theforward-backward asymmetry. We find that for large dilepton invariant mass q^2> M_{\psi'}^2 these uncertainties are large. We also assess the possibility ofextracting the HQET parameters \lambda_1 and \bar{\Lambda} using data from thisprocess.Comment: 24 pages, revtex, 4 figures, added an appendix with details, results  unchange

Nonperturbative corrections to moments of the decay B[over →]X_{s}l^{+}l^{-}