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62 papers · 1 filter
Measurement of Lepton Momentum Moments in the Decay bar{B} \to X \ell \barν and Determination of Heavy Quark Expansion Parameters and |V_cb|
A. H. Mahmood
We measure the primary lepton momentum spectrum in B-bar to X l nu decays, for p_l > 1.5 GeV/c in the B rest frame. From this, we calculate various moments of the spectrum. In part…
Fuzzy Nambu-Goldstone Physics
A. P. Balachandran, G. Immirzi
In spacetime dimensions larger than 2, whenever a global symmetry G is spontaneously broken to a subgroup H, and G and H are Lie groups, there are Nambu-Goldstone modes described b…
Chiral spinors and gauge fields in noncommutative curved space-time
Nguyen Ai Viet, Kameshwar C. Wali
The fundamental concepts of Riemannian geometry, such as differential forms, vielbein, metric, connection, torsion and curvature, are generalized in the context of non-commutative…
On Fast Travel through spherically symmetric spacetimes
Belkis Cabrera Palmer, Donald Marolf
In a static spacetime, the Killing time can be used to measure the time required for signals or objects to propagate between two of its orbits. By further restricting to sphericall…
Tall tales from de Sitter space II: Field theory dualities
Frederic Leblond, Donald Marolf, Robert C. Myers
We consider the evolution of massive scalar fields in (asymptotically) de Sitter spacetimes of arbitrary dimension. Through the proposed dS/CFT correspondence, our analysis points…
Inclusive eta' Production from the Upsilon(1S)
CLEO Collaboration, M. Artuso
Using the CLEO II detector at CESR, we measure the eta' - gluon - gluon form-factor in Y(1S) decays. This form-factor especially at large eta' energies may provide an explanation o…