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- C. Albright, G. Anderson, +49 authors E. D. Zimmerman
- 2000

2 Preface In response to the growing interest in building a Neutrino F actory to produce high intensity beams of electron-and muon-neutrinos and antineutrinos, in October 1999 the Fermilab Directorate initiated two six-month studies. The first study, organized by N. Holtkamp and D. Finley, was to investigate the technical feasibility of an intense neutrino… (More)

- A. Lai, D. Marras, +31 authors L. Widhalm
- 2002

The decay rate of K L → π 0 γγ has been measured with the NA48 detector at the CERN SPS.

The Hilbert scheme H d n of n points in A d contains an irreducible component R d n which generically represents n distinct points in A d. We show that when n is at most 8, the Hilbert scheme H d n is reducible if and only if n = 8 and d ≥ 4. In the simplest case of reducibility, the component R 4 8 ⊂ H 4 8 is defined by a single explicit equation which… (More)

- V. Fanti, A. Lai, +82 authors B. Vallage
- 1999

The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 0 0 q y Ž X. by simultaneously collecting K and K decays into p p and p p. The result for the CP violating parameter Ré r´L S

Let X be a del Pezzo surface of degree one over an algebraically closed field, and let Cox(X) be its total coordinate ring. We prove the missing case of a conjecture of Batyrev and Popov, which states that Cox(X) is a qua-dratic algebra. We use a complex of vector spaces whose homology determines part of the structure of the minimal free Pic(X)-graded… (More)

- M. Apollonio, A. Blondel, +35 authors P. Zucchelli
- 2002

A generation of neutrino experiments have established that neutrinos mix and probably have mass. The mixing phenomenon points to processes beyond those of the Standard Model, possibly at the Grand Unification energy scale. A extensive sequence of of experiments will be required to measure precisely all the parameters of the neutrino mixing matrix,… (More)

- Jarod Alper, Tristram Bogart, Mauricio Velasco
- Foundations of Computational Mathematics
- 2017

We prove that the determinantal complexity of a hypersurface of degree d > 2 is bounded below by one more than the codimension of the singular locus, provided that this codimension is at least 5. As a result, we obtain that the determinantal complexity of the 3 × 3 permanent is 7. We also prove that for n > 3, there is no nonsingular hypersurface in P n of… (More)

- Mauricio Velasco
- 2006