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Global Monte Carlo Simulation with High Order Polynomial Expansions

Description: The functional expansion technique (FET) was recently developed for Monte Carlo simulation. The basic idea of the FET is to expand a Monte Carlo tally in terms of a high order expansion, the coefficients of which can be estimated via the usual random walk process in a conventional Monte Carlo code. If the expansion basis is chosen carefully, the lowest order coefficient is simply the conventional histogram tally, corresponding to a flat mode. This research project studied the applicability of u… more
Date: December 13, 2007
Creator: Martin, William R.; Holloway, James Paul; Banerjee, Kaushik; Cheatham, Jesse & Conlin, Jeremy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of Bbar to Xu l nubar Decays in BBbar Events Tagged by a Fully Reconstructed B-meson Decay and Determination of |V_{ub}|

Description: We report measurements of partial branching fractions for inclusive charmless semileptonic B decays {bar B} {yields} X{sub u}{ell}{bar {nu}}, and the determination of the CKM matrix element |V{sub ub}|. The analysis is based on a sample of 467 million {Upsilon}(4S) {yields} B{bar B} decays recorded with the BABAR detector at the PEP-II e{sup +}e{sup -} storage rings. We select events in which the decay of one of the B mesons is fully reconstructed and an electron or a muon signals the semilepto… more
Date: July 13, 2012
Creator: Lees, J.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Beryllium Limits of Detection and Spectral Interferences in 2 Per Cent Nitric Acid, Digested Air Filter Paper, and GHOSTWIPETM Matrices by Inductively Coupled Plasma Emission Spectrometry

Description: The Analytical Development Section (ADS) of the Savannah River Technology Center (SRTC) has been requested to perform beryllium (Be) analysis on digested Air Filter Paper and GHOSTWIPE (Trade Mark) samples by Inductively Coupled Plasma Emission Spectrometry (ICP-ES). One of the important figures of merit for this analysis is the detection limit (LOD), the smallest concentration of an element that can be detected with a defined certainty. To meet the site Industrial Hygiene (IH) requirements, an… more
Date: February 13, 2004
Creator: Jurgensen, A.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement of the Moments of the Hadronic Invariant Mass Distribution in Semileptonic Beta Decays

Description: Using 180 pb{sup -1} of data collected with the CDF II detector at the Tevatron, we measure the first two moments of the hadronic invariant mass-squared distribution in charmed semileptonic B decays. From these we determine the non-perturbative Heavy Quark Effective Theory parameters {Lambda} and {lambda}{sub 1} used to relate the B meson semileptonic branching ratio to the CKM matrix element |V{sub cb}|.
Date: March 13, 2005
Creator: Acosta, D. & TITLE=Measuremen, The CDF Collaboration
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

No-Core Shell Model for A = 47 and A = 49

Description: We apply the no-core shell model to the nuclear structure of odd-mass nuclei straddling {sup 48}Ca. Starting with the NN interaction, that fits two-body scattering and bound state data, we evaluate the nuclear properties of A = 47 and A = 49 nuclei while preserving all the underlying symmetries. Due to model space limitations and the absence of three-body interactions, we incorporate phenomenological interaction terms determined by fits to A = 48 nuclei in a previous effort. Our modified Hamilt… more
Date: November 13, 2006
Creator: Vary, J P; Negoita, A G & Stoica, S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hadron Spectroscopy and Wavefunctions in QCD and the AdS/CFT Correspondence

Description: The AdS/CFT correspondence has led to important insights into the properties of quantum chromodynamics even though QCD is a broken conformal theory. We have recently shown how a holographic model based on a truncated AdS space can be used to obtain the hadronic spectrum of light q{bar q}, qqq and gg bound states. Specific hadrons are identified by the correspondence of string modes with the dimension of the interpolating operator of the hadron's valence Fock state, including orbital angular mom… more
Date: October 13, 2005
Creator: Brodsky, Stanley J.; de Teramond, Guy F. & U., /SLAC /Costa Rica
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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