Measurements of polarized photo-pion production on longitudinally polarized HD and Implications for Convergence of the GDH Integral

We report new measurements of inclusive pion production from frozen-spin HD for polarized photon beams covering the Delta(1232) resonance. These provide data simultaneously on both H and D with nearly complete angular distributions of the spin-difference cross sections entering the Gerasimov-Drell-Hearn (GDH) sum rule. Recent results from Mainz and Bonn exceed the GDH prediction for the proton by 22 microbarns, suggesting as yet unmeasured high-energy components. Our pi0 data reveal a different angular dependence than assumed in Mainz analyses and integrate to a value that is 18 microbarns lower, suggesting a more rapid convergence. Our results for deuterium are somewhat lower than published data, considerably more precise and generally lower than available calculations.Comment: 4 pages, 4 figures. Submitted for publication in Physical Review Letter

Biogas appliances in Sub-Sahara Africa

Acknowledgement The authors are grateful to DFID for the financial support granted through The New and Emerging Technologies Research Competition (NET-RC). We also want to thank numerous authors, staff at CREEC and Uganda Domestic program who work tirelessly to provide the know-how, books, articles on biogas technology whose works were made reference to.Peer reviewedPostprin

Spartan Daily, October 6, 1942

Volume 31, Issue 4https://scholarworks.sjsu.edu/spartandaily/3484/thumbnail.jp

A study to determine the presence of leadership skills in staff nurses in relation to nursing assistants.

Thesis (M.S.)--Boston Universit

A handbook of reading readiness games and exercises that can be used by parents with children from ages three to six.

Thesis (M.Ed.)--Boston Universit

Simulation of fermionic lattice models in two dimensions with Projected Entangled-Pair States: Next-nearest neighbor Hamiltonians

In a recent contribution [Phys. Rev. B 81, 165104 (2010)] fermionic Projected Entangled-Pair States (PEPS) were used to approximate the ground state of free and interacting spinless fermion models, as well as the $t$-$J$ model. This paper revisits these three models in the presence of an additional next-nearest hopping amplitude in the Hamiltonian. First we explain how to account for next-nearest neighbor Hamiltonian terms in the context of fermionic PEPS algorithms based on simulating time evolution. Then we present benchmark calculations for the three models of fermions, and compare our results against analytical, mean-field, and variational Monte Carlo results, respectively. Consistent with previous computations restricted to nearest-neighbor Hamiltonians, we systematically obtain more accurate (or better converged) results for gapped phases than for gapless ones.Comment: 10 pages, 11 figures, minor change

Memoirs of the Queensland Museum.

v.35:pt.2 (1994