35 research outputs found
James Edwards. (To accompany bill H.R. no. 380)
29-1Military AffairsReport : Claim of of J. Edwards. [490] Seminole.1846-9
Moments of semileptonic B decay distributions in the 1/m_b expansion
We report the OPE-based predictions for a number of lepton energy and
hadronic mass moments in the inclusive semileptonic B -> X_c \ell\nu decays
with a lower cut on the charged lepton energy. We rely on the direct OPE
approach where no expansion in the charm mass is employed and the theoretical
input is a limited set of underlying OPE parameters including m_b and m_c. A
Wilsonian treatment with a `hard' cutoff is applied using running low-scale
masses m_Q(\mu) and kinetic expectation value \mu_\pi^2(\mu). This leaves for
perturbative corrections only genuinely short-distance effects and makes them
numerically small. Predictions are also given for the modified hadronic moments
of the kinematic variable \cal N_X^2 which is a combination of M_X^2 and E_X.
Measurement of such moments would allow a more reliable extraction of
higher-order nonperturbative heavy quark parameters from experiment.Comment: 16 pages, LaTeX, three figure
The B -> pi K Puzzle and its Relation to Rare B and K Decays
The Standard-Model interpretation of the ratios of charged and neutral B-> pi
K rates, R_c and R_n, respectively, points towards a puzzling picture. Since
these observables are affected significantly by colour-allowed electroweak (EW)
penguins, this ``B -> pi K puzzle'' could be a manifestation of new physics in
the EW penguin sector. Performing the analysis in the R_n-R_c plane, which is
very suitable for monitoring various effects, we demonstrate that we may, in
fact, move straightforwardly to the experimental region in this plane through
an enhancement of the relevant EW penguin parameter q. We derive analytical
bounds for q in terms of a quantity L, that measures the violation of the
Lipkin sum rule, and point out that strong phases around 90 deg are favoured by
the data, in contrast to QCD factorisation. The B -> pi K modes imply a
correlation between q and the angle gamma that in the limit of negligible
rescattering effects and colour suppressed EW penguins depends only on the
value of L. Concentrating on a minimal flavour-violating new-physics scenario
with enhanced Z^0 penguins, we find that the current experimental values on
B -> X_s mu^+ mu^- require roughly L pi K data give L =
5.7 +- 2.4, L has either to move to smaller values once the B -> pi K data
improve or new sources of flavour and CP violation are needed. In turn, the
enhanced values of L seen in the B -> pi K data could be accompanied by
enhanced branching ratios for rare decays. Most interesting turns out to be the
correlation between the B -> pi K modes and BR(K^+ -> pi^+ nu nu), with the
latter depending approximately on a single ``scaling'' variable \bar L= L
(|V_{ub}/V_{cb}|/0.086)^2.3.Comment: 19 pages, 7 figures, a few typos corrected and two references adde
Indian appropriation bill.
3717 H.rp.18955-2AppropriationsIndian Appropriation Bill. [3620] For fiscal 1899.1898-5
pulcherrima
Antennaria pulcherrima (Hooker) Greeneshowy pussytoes;handsome pussytoes;showy everlastingantennaire magnifiqueAntennaria pulcherrimaOil Basingrassy slopes, dry NE drainage basin6000herb. Whit
multilobata
Packera multilobata (Torr. & A. Gray ex A. Gray) W.A. Weber & Á. LöveLobeleaf groundselHwy #44, approx. 22 km. SE. of Cuba along steep erosion slopeLinum sp
canadensis
Cornus canadensis L.BunchberryMyrtilleGMWLow perennial herb with a creeping rootstock. Fruit-drupes, bright red in color, globose, 6-8mm broad. Collected near Hudson Hope, British Columbia. Moss says ""Common in wooded regions."
margaritacea
Anaphalis margaritacea (Linnaeus) Bentham & Hooker f.pearly everlasting;common pearly everlasting;western pearly everlastingimmortelle blanche;anaphale marguerite;immortelle;anaphale perléeAnaphalis margaritaceaWestcastle; Beaver Mines Lake; lakesidedamp forest590
montana
Hippuris montana Ledebour ex Reichenbachmountain mare's-tailhippuride des montagnesAllison Lakelake shore; aquatic vegetation5200 fee
occidentalis
Castilleja occidentalis Torr.castilléjie de l'Ouestwestern paintbrushNorth Kootenay PassT. ChisholmN.E. facing slope below gray talus slope; lichen-crusted rocky, mossy patches striating down towards trail2015Dryas octopetala, Smelowskia americana, Anticlea elegans, Penstemon confertus>7