Physical Sciences and Mathematics Commons^™

Weak Decays Of The H-Dibaryon, Jf Donoghue, E Golowich, Br Holstein

Barry R Holstein

We calculate decay rates and branching fractions for the postulated S=-2 H dibaryon, both for the expected ΔS=1 channels (nΛ,nΣ0,pΣ-) and for the possible ΔS=2 mode (nn). For ΔS=1 decays we find the S waves are dominated by ΔI=(3/2) transitions due to the Pauli principle, which forces the six-quark final state to be in a SU(3) 27-plet. If observed, this would be the first breakdown of the ΔI=1/2 rule. The lifetime is long, of order 10-8 sec, which should be considered in planning experiments. In the ΔS=2 case, we add a consideration of dispersive effects to our previous calculation of …

The Minimum Size Of The Aids Epidemic In The United States, Ron Brookmeyer, Mitchell Gail

Ron Brookmeyer

A new method based on the reported incubation period of transfusion-associated AIDS was used to estimate the number of AIDS cases likely to arise in the USA among those infected before 1986. Between 1986 and 1991 102 000 new cases are projected, with a total cumulative incidence of 135 000 AIDS cases. These estimates do not account for new infections after 1985 nor very long incubation periods and are thus the smallest numbers to be expected. Even if new infections can be effectively prevented, the epidemic will be five times larger than the number of cases observed so far.

University Of London Expedition To Madagascar Report, Nat Quansah

Nat Quansah

No abstract provided.

Gravitational Coupling At Finite Temperature, Jf Donoghue, Br Holstein, Rw Robinett

Barry R Holstein

We discuss a thermodynamic identity which helps explain why ≠ at finite temperature. In addition we complete the discussion of the gravitational force by including the gravitational variation of the temperature. Gradients in the temperature induce extra forces not accounted for by the usual coupling to the energy-momentum tensor.

A Refined Model For The Space-Charge Layer In Composite Electrolyte Systems, Michael Setter

Michael P. Setter

No abstract provided.

Quantum Monte Carlo Study Of A Lattice Atom Model For Excitonic Fluids, Randall W. Hall, Peter G. Wolynes

Randall W. Hall

G. N. Lewis' Atom And Quantum Monte Carlo Studies Of Liquids, Randall W. Hall, Peter G. Wolynes

Randall W. Hall

Chiral Symmetry, Nonleptonic Hyperon Decay, And The Feinberg-Kabir-Weinberg Theorem, Jf Donoghue, Br Holstein

Barry R Holstein

We demonstrate that additional (kaon-pole) diagrams must be appended to the traditional commutator-plus-baryon-pole approach to nonleptonic hyperon decay. The modified analysis satisfied the constraints of the Feinberg-Kabir-Weinberg theorem. The new terms are not numerically significant in the case of the usual current-current Hamiltonian, in the continuum limit, but can be important for work using lattice techniques or for other Hamiltonians.

A Prescription For Computer System Excellence, Robert Yacobellis

Robert H Yacobellis

No abstract provided.

Engineering Product Quality - Current Practices And Future Trends, Robert Yacobellis

Robert H Yacobellis

No abstract provided.

Positive Experiences With Software Metrics, Robert Yacobellis

Robert H Yacobellis

No abstract provided.

Nuclease Activity Of 1,10-Phenanthroline-Copper Ion: Reaction With Cgcgaattcgcg And Its Complexes With Netropsin And Ecori, Thomas Goyne, Michio Kuwabara, Chun Yoon, Theodore Thederahn, David Sigman

Thomas Goyne

No abstract provided.

Electromagnetic And Isopin Breaking Effects Decrease Epsilon'/Epsilon, Jf Donoghue, E Golowich, Br Holstein, J Trampetic

Barry R Holstein

No abstract provided.

Chiral Perturbation-Theory Corrections To Kl-]-Gamma-Gamma, Jf Donoghue, Br Holstein, Ycr Lin

Barry R Holstein

No abstract provided.

A Design Methodology For Software Quality, Robert Yacobellis

Robert H Yacobellis

No abstract provided.