Showing papers in "Nuclear Physics in 2001"

TL;DR: In this paper, it was shown that the prediction for BR(μ→e,γ) is in general larger than the experimental upper bound, especially if the largest Yakawa coupling is O (1) and the solar data are explained by a large angle MSW effect, which recent analyses suggest as the preferred scenario.

TL;DR: In this article, a nonlinear evolution equation was proposed to describe the small-x-quantum hadronic physics in the regime of very high gluon density, which is a functional Fokker-Planck equation in terms of a classical random color source.

TL;DR: In this article, the authors proposed the simplest possible renormalizable extension of the Standard Model, the addition of just one singlet scalar field, as a minimalist model for nonbaryonic dark matter.

TL;DR: In this paper, a recurrence relation for the function corresponding to the contribution of an arbitrary spin field in the operator product expansion to the four point function for scalar fields in conformally invariant theories is derived.

TL;DR: In this paper, the hadronic matrix elements entering nonleptonic B-meson decays into two light mesons can be calculated from first principles including nonfactorizable strong-interaction corrections.

TL;DR: In this paper, it was shown that chiral symmetry determines the low energy behavior of the scattering amplitude to within very small uncertainties, in particular the threshold parameters of the S-, P-, D- and F-waves.

TL;DR: In this paper, the gravitino production rate in supersymmetric QCD at high temperature to leading order in the gauge coupling was evaluated, and the results showed that gravitinos are the dominant part of cold dark matter.

TL;DR: In this paper, a systematic expansion of induced gluon radiation associated with jet production in a dense QCD plasma is derived using a reaction operator formalism, which leads to a simple algebraic proof of the color triviality of single inclusive distributions and a solvable set of recursion relations.

TL;DR: In this article, a supersymmetric four-dimensional orientifolds of type IIA on T 6 /( Z 2 × Z 2 ) with D6-branes intersecting at angles was constructed.

TL;DR: In this article, a large N dual of 4d, N = 1 supersymmetric, SU(N) Yang-Mills with adjoint field Φ and arbitrary superpotential W(Φ) was proposed.

TL;DR: In this paper, a detailed analysis of the lower bounds on mH imposed by the requirement that the electroweak vacuum be sufficiently long-lived is presented, and a complete one-loop calculation of the tunnelling probability at zero temperature is performed.

TL;DR: In this paper, the structure of heavy-to-light form factors including perturbative effects is discussed and symmetry-breaking corrections to first order in the strong coupling are computed to constrain potential new physics contributions to the Wilson coefficient C9.

TL;DR: In this article, the quark mass and flavour dependence of the phase transition temperature of 2 and 3-flavour QCD phase transition was analyzed and a detailed analysis of the heavy quark free energy was presented.

TL;DR: In this article, first-order corrections to the asymmetry zero were computed for exclusive, radiative B meson decays in the heavy quark mass limit, which removed a major part of the theoretical uncertainty in the region of small invariant mass of the photon.

TL;DR: In this article, the effect of multiple scattering of a highly off-shell quark and the induced parton energy loss is expressed in terms of the modification to the quark fragmentation functions.

TL;DR: In this article, the authors derived Bianchi identities and their corresponding gauge invariances for various partially massless theories with propagating helicities (±5/2,±3/2) and (±3,±2), respectively.

TL;DR: In this article, the authors present an algorithm for extracting a consistent set of gauge theory data for an arbitrary toric variety whose singularity a D-brane probes, called Toric Duality.

TL;DR: In this article, experimental studies on nuclear sizes and related topics are reviewed and the nuclear sizes for unstable nuclei, which are deduced by the interaction cross sections and reaction cross sections, are mainly reviewed.

TL;DR: In this article, it was shown that removing mcpole/mbpole in this matrix element by replacing m c MS (μ)/m b pole with μ∈[mc,mb] causes an 11% enhancement of the SM prediction for BR [B → X s γ].

TL;DR: In this paper, the authors consider a string wrapped many times around a compact circle in space, and let this string carry a right-moving wave which imparts momentum and angular momentum to the string.

TL;DR: In this paper, the perturbative stability of non-supersymmetric intersecting brane world models on tori is analyzed and the phenomenological implications of a three generation Standard Model which descends naturally from an SU (5) GUT theory.

TL;DR: In this article, it was shown that there is no consistent (ghost-free) coupling, with at most two derivatives of the fields, that can mix the various "gravitons".

TL;DR: In this article, the vacuum structure of type IIA/B Calabi-Yau string compactications to four dimensions in the presence of n-form H-fluxes is discussed.

TL;DR: In this article, a non-perturbative spacetime regularization of the Lorentzian space-times is proposed to quantize gravity in d = 3,4.

TL;DR: In this paper, the authors proposed a new mechanism of inflating the universe with non-BPS D4-branes which decay into stable D3-brane via tachyon condensation.

TL;DR: In this paper, it was shown that there is a non-trivial relationship between the dilaton of IIB supergravity and the coset of scalar fields in five-dimensional, gauged N=8 supergravity.

TL;DR: In this article, the sensitivity to leptonic CP violation at a neutrino factory, in the LMA-MSW scenario, by exploring the full range ofand �13.

TL;DR: In this article, the two-loop corrections to the neutral Higgs boson masses in the Minimal Supersymmetric extension of the Standard Model were computed using the effective potential.

TL;DR: A noncommutative U(1) and U(n) gauge theory on the fuzzy sphere is derived from a three-dimensional matrix model by expanding the model around a classical solution of the fuzzy spheres.