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- Universidad Nacional Autónoma de MéxicoMX165 papers
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41 papers · 1 filter
Measurement of the doubly Cabibbo suppressed decay and a search for charm mixing
FOCUS Collaboration, J. M. Link
We present an analysis of the decay based on FOCUS data. From a sample of 234 signal events, we find a branching ratio of $\frac{Γ(D^0 \to K^+π^-)}{Γ(D^0 \to K^-π^…
Model for self-consistent analysis of arbitrary MQW structures
Ivan Safonov, Aleksey Shulika, Igor Sukhoivanov +1
Self-consistent computations of the potential profile in complex semiconductor heterostructures can be successfully applied for comprehensive simulation of the gain and the absorpt…
Two photon decay of neutral scalars below 1.5 GeV in a chiral model for bar{q}q and bar{q}bar{q}qq states
Simon Rodriguez, Mauro Napsuciale
We study the two photon decay of neutral scalars below 1.5 GeV in the context of a recently proposed chiral model for bar{q}q and bar{q}bar{q}qq states. We find good agreement with…
Morphological and Luminosity Content of Poor Galaxy Groups
H. Tovmassian, M. Plionis, H. Andernach
We find that the fraction of early-type galaxies in poor groups (containing from 4 to 10 members) is a weakly increasing function of the number of the group members and is about tw…
High Statistics Search for the Theta+(1.54) Pentaquark State
M. J. Longo, R. A. Burnstein, A. Chakravorty +30
We have searched for Theta+(1.54) -> K0,p decays using data from the 1999 run of the HyperCP experiment at Fermilab. We see no evidence for a narrow peak in the K0,p mass distribut…
Peculiar velocities in the Zone of Avoidance: Determining the Distance to the Norma cluster
P. A. Woudt, A. P. Fairall, R. C. Kraan-Korteweg +4
Deep J, H and Ks photometry of the low Galactic latitude Norma cluster has been obtained with the 1.4-m Infrared Survey Facility (IRSF) and with SOFI on the NTT. Together with spec…