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28 papers · 1 filter
Measurement of Pion Enhancement at Low Transverse Momentum and of the Delta-Resonance Abundance in Si-Nucleus Collisions at AGS Energy
J. Barrette
We present measurements of the pion transverse momentum (p_t) spectra in central Si-nucleus collisions in the rapidity range 2.0<y<5.0 for p_t down to and including p_t=0. The data…
Vanishing Theorems for the Self-Dual N=2 String
Nathan Berkovits
It is proven that up to possible surface terms, the only non-vanishing momentum-dependent amplitudes for the self-dual N=2 string in are the tree-level two and three-poin…
Galaxies, Human Eyes and Artificial Neural Networks
O. Lahav, A. Naim, R. J. Buta +8
Quantitative morphological classification of galaxies is important for understanding the origin of type frequency and correlations with environment. But galaxy morphological classi…
Canonical Quantization of the Maxwell-Chern-Simons Theory in the Coulomb Gauge
F. P. Devecchi, M. Fleck, H. O. Girotti +2
The Maxwell-Chern-Simons theory is canonically quantized in the Coulomb gauge by using the Dirac bracket quantization procedure. The determination of the Coulomb gauge polarization…
Bounds on Scalar Leptoquarks from Z Physics
J. K. Mizukoshi, O. J. P. Eboli, M. C. Gonzalez-Garcia
We analyse the constraints on scalar leptoquarks coming from radiative corrections to physics. We perform a global fitting to the LEP data including the contributions of the mo…
Spectral Classification of Galaxies
Laerte Sodre, Hector Cuevas
We investigate the integrated spectra of a sample of 24 normal galaxies. A principal component analysis suggests that most of the variance present in the spectra is due to the diff…