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74 papers · 1 filter
A Quantum-Bayesian Route to Quantum-State Space
Christopher A. Fuchs, Ruediger Schack
In the quantum-Bayesian approach to quantum foundations, a quantum state is viewed as an expression of an agent's personalist Bayesian degrees of belief, or probabilities, concerni…
A Search for B+ -> tau+ nu Recoiling Against B- -> D0 l- nu X
The BABAR Collaboration, B. Aubert
We present a search for the decay () in pairs recorded with the BABAR detector at the PEP-II B-Facto…
NLO QCD corrections to ZZ+jet production at hadron colliders
T. Binoth, T. Gleisberg, S. Karg +2
A fully differential calculation of the next-to-leading order QCD corrections to the production of Z-boson pairs in association with a hard jet at the Tevatron and LHC is presented…
Freeze-In Production of FIMP Dark Matter
Lawrence J. Hall, Karsten Jedamzik, John March-Russell +1
We propose an alternate, calculable mechanism of dark matter genesis, "thermal freeze-in," involving a Feebly Interacting Massive Particle (FIMP) interacting so feebly with the the…
Open Access, Intellectual Property, and How Biotechnology Becomes a New Software Science
Fionn Murtagh
Innovation is slowing greatly in the pharmaceutical sector. It is considered here how part of the problem is due to overly limiting intellectual property relations in the sector. O…
Readiness of the ATLAS Liquid Argon Calorimeter for LHC Collisions
The ATLAS Collaboration
The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all c…
Note on Max Lin-2 above Average
Robert Crowston, Gregory Gutin, Mark Jones
In the Max Lin-2 problem we are given a system of linear equations in variables over in which Equation is assigned a positive integral weight f…
Observation of inclusive production in the decay of
The BABAR Collaboration, B. Aubert
We present a study of the inclusive production in the decay of using mesons collected with the BaBar detector at the …
Development of a relaxation calorimeter for temperatures between 0.05 and 4 K
M. Brando
A detailed description of an isoperibol calorimeter for temperatures between 0.05 and 4 K is presented. The proposed setup can provide absolute values of the heat capacity of s…
High pressure study of BaFe2As2 - role of hydrostaticity and uniaxial stress
W. J. Duncan, O. P. Welzel, C. Harrison +4
We investigate the evolution of the electrical resistivity of BaFe2As2 single crystals with pressure. The samples used were from the same batch grown from self flux and showed prop…
Non-Euclidean statistics for covariance matrices, with applications to diffusion tensor imaging
Ian L. Dryden, Alexey Koloydenko, Diwei Zhou
The statistical analysis of covariance matrix data is considered and, in particular, methodology is discussed which takes into account the non-Euclidean nature of the space of posi…
Competing with Gaussian linear experts
Fedor Zhdanov, Vladimir Vovk
We study the problem of online regression. We prove a theoretical bound on the square loss of Ridge Regression. We do not make any assumptions about input vectors or outcomes. We a…
On the Abelianization of Congruence Subgroups of Aut(F_2)
Daniel Appel
Let F_n be the free group of rank n and let Aut^+(F_n) be its special automorphism group. For an epimorphism pi : F_n -> G of the free group F_n onto a finite group G we call Gamma…
Measurement of CP violation observables and parameters for the decays
The BaBar Collaboration, B. Aubert
We study the decay using a sample of 379 events collected with the BABAR detector at the PEP-II -factory. We perform a "GLW" an…
Measurements of the Mass and Mass Difference of the and } at BaBar
The BaBar Collaboration, B. Aubert
We present the result from a precision measurement of the mass of the lepton, , based on of data recorded at the resonance with the BaBar detector. U…
Measurement of branching fractions of B decays to K1(1270)pi and K1(1400)pi and determination of the CKM angle alpha from B0 --> a1(1260)+/- pi-/+
The BABAR Collaboration, B. Aubert
We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K_1(1270) or K_1(1400) meson and a charged pion. The data, coll…
Parasitic small-moment-antiferromagnetism and non-linear coupling of hidden order and antiferromagnetism in URu2Si2 observed by Larmor diffraction
P. G. Niklowitz, C. Pfleiderer, T. Keller +3
We report simultaneous measurements of the distribution of lattice constants and the antiferromagnetic moment in high-purity URu2Si2, using both Larmor and conventional neutron dif…
Geometry of Generalized Depolarizing Channels
Christian K. Burrell
A generalized depolarizing channel acts on an N-dimensional quantum system to compress the ``Bloch ball'' in N^2-1 directions; it has a corresponding compression vector. We investi…
Scale-Based Gaussian Coverings: Combining Intra and Inter Mixture Models in Image Segmentation
Fionn Murtagh, Pedro Contreras, Jean-Luc Starck
By a "covering" we mean a Gaussian mixture model fit to observed data. Approximations of the Bayes factor can be availed of to judge model fit to the data within a given Gaussian m…
Topological Order Following a Quantum Quench
D. I. Tsomokos, A. Hamma, W. Zhang +2
We determine the conditions under which topological order survives a rapid quantum quench. Specifically, we consider the case where a quantum spin system is prepared in the ground…
Kerr Black Holes as Particle Accelerators to Arbitrarily High Energy
Máximo Bañados, Joseph Silk, Stephen M. West
We show that intermediate mass black holes conjectured to be the early precursors of supermassive black holes and surrounded by relic cold dark matter density spikes can act as par…
Vertex Cover Problem Parameterized Above and Below Tight Bounds
Gregory Gutin, Eun Jung Kim, Michael Lampis +1
We study the well-known Vertex Cover problem parameterized above and below tight bounds. We show that two of the parameterizations (both were suggested by Mahajan, Raman and Sikdar…
Precise measurement of the e+ e- to pi+ pi- (gamma) cross section with the Initial State Radiation method at BABAR
The BABAR Collaboration, B. Aubert
A precise measurement of the cross section of the process e+ e- to pi+ pi- (gamma) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method us…
A Search for Invisible Decays of the Upsilon(1S)
The BABAR Collaboration, B. Aubert
We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{6} Upsilon(3S) mesons collected at the BaBar/PEP-II B-factory. We select events containing the…