Report of the 1971 JASON Laser Summer Study. Volume I. Recommendations and Conclusions, (2005)
Watson,Kenneth, Case,Kenneth, Dashen,Roger, Kroll,Normal, Ruderman,Malvin
All potential uses of lasers, civil and military, are reviewed: medicine and biological research, chemical processing, initiation of controlled thermonuclear reactions, communications, pollutant...
Report of the 1971 JASON Laser Summer Study. Volume II. Supporting Appendices A-M, (2005)
Asmus,John F., Case,Kenneth M., Dashen,Roger, Javan,Ali, Kelley,Paul
The volume contains a summary of the current state of the art in laser devices and associated technology, plus discussions of the current and potential uses of lasers in the following areas: medicine...
Munk,Walter H., Dashen,Roger, Hartle,James B., Keller,Joseph B.
This study deals with fundamentals in the performance of airborne sensors for detecting the wake from the passage of a submarine through stratified water. No attempt has been made to imbed the...
Flatte,Stanley M., Reynolds,Stephen A., Dashen,Roger, Buehler,Barry, Maciejewski,Pat
A joint acoustic-oceanographic experiment was performed near the Azores in 1975. Frequencies from 400-4670 Hz were transmitted over a 35 km wholly refracted path. In addition, a separate data set was...
Path-Integral Treatment of Acoustic Mutual Coherence Functions for Rays in a Sound Channel, (1998)
Dashen,Roger, Flatte,Stanley M., Reynolds,Stephen A.
The mutual coherence function (MCF) of the acoustic wavefunction from a point source is derived by the path-integral technique for transmission in the presence of a sound channel. Separations in...
Flatte,Stanley M., Bernstein,David R., Dashen,Roger
Using the formalism of path integrals, the intensity moments of waves propagated through anisotropic inhomogeneous random media in the presence of a deterministic wave speed variation can be formed....
AFAR (Azores Fixed Acoustic Range) Measurements of Intensity and Intensity Moments, (1998)
Flatte,Stanley M., Reynolds,Stephen A., Dashen,Roger, Buehler,Barry, Maciejewski,Pat
In an acoustic-oceanographic experiment (AFAR) performed near the Azores in 1975, frequencies from 400 to 4670 Hz were transmitted over a 35-km wholly refracted patch. In addition, a separate data...
Path-Integral Treatment of Intensity Behavior for Rays in a Sound Channel, (1998)
Flatte, Stanley M., Reynolds, Stephen A., Dashen, Roger
The intensity coherence function (ICF) of the acoustic wave function from a point source is derived by the path-integral technique for transmission through internal waves in the presence of a sound...
In 1987 and 1988, Dan Wurmser (now at NRL) and I developed a new method for scattering from rough surfaces. There were several new results. The first was a new exact formula for the scattering...
Flavor Symmetry Breaking in the 1/N Expansion (1995)
Dai, Jin, Dashen, Roger, Jenkins, Elizabeth, Manohar, Aneesh V.
The breaking of flavor SU(3) symmetry in the axial couplings and magnetic moments of baryons is analyzed in the $1/N_c$ expansion. A simple meson loop graph which is known to be of order $\sqrt{m_s}$...
Spin-Flavor Structure of Large N Baryons (1994)
Dashen, Roger, Jenkins, Elizabeth, Manohar, Aneesh V.
The spin-flavor structure of large N baryons is described in the 1/N expansion of QCD using quark operators. The complete set of quark operator identities is obtained, and used to derive an operator...
The 1/N Expansion for Baryons (1993)
Dashen, Roger, Jenkins, Elizabeth, Manohar, Aneesh V.
A systematic expansion in 1/N is constructed for baryons in QCD. Predictions of the 1/N expansion at leading and subleading order for baryon axial current coupling constant ratios such as F/D, baryon...
Baryon-Pion Couplings from Large-N QCD (1993)
Dashen, Roger, Manohar, Aneesh V.
We derive a set of consistency conditions for the pion-baryon coupling constants in the large-N limit of QCD. The consistency conditions have a unique solution which are precisely the values for the...
1/N Corrections to the Baryon Axial Currents in QCD (1993)
Dashen, Roger, Manohar, Aneesh V.
We prove that the 1/N corrections to the baryon axial current matrix elements are proportional to their lowest order values. This implies that the first correction to axial current coupling constant...
Chew-Low model for Regge-pole couplings (1966)
Dashen, Roger, Frautschi, Steven
The couplings of a meson trajectory α(t) to the baryon octet B and the decimet Δ are studied in the Chew-Low model. The model predicts ratios, though not absolute magnitudes, for SU(3)-symmetric...
Representation of local current algebra at infinite momentum (1966)
Dashen, Roger, Gell-Mann, Murray
It has been proposed (1,2) that the charge operators Fi and Fi5 of the vector and axial-vector current octets may obey the algebra of SU(3)×SU(3) exactly, to all orders in the strong interactions,...