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most citedFirst Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance

2.7k citations

Showing 2003 · hep-phShow all

11 papers · 2 filters

hep-ph2003★ 57 cited

Linking the Quark Meson Model with QCD at High Temperature

Jens Braun, Kai Schwenzer, Hans-Jürgen Pirner

We model the transition of a system of quarks and gluons at high energies to a system of quarks and mesons at low energies in a consistent renormalization group approach. Flow equa…

hep-ph2003★ 42 cited

Prospects for Detecting a Neutrino Magnetic Moment with a Tritium Source and Beta-beams

G. C. McLaughlin, C. Volpe

We compare the prospects for detecting a neutrino magnetic moment by the measurement of neutrinos from a tritium source, reactors and low-energy beta-beams. In all cases the neutri…

hep-ph2003★ 4 cited

Chiral Symmetry and Hyperfine Quark-Antiquark Splittings

Felipe J. Llanes-Estrada, Stephen R. Cotanch, Adam P. Szczepaniak +1

We briefly review theoretical calculations for the pseudoscalar-vector meson hyperfine splitting with no open flavor and also report a many body field theoretical effort to assess…

hep-ph2003

Loops and Power Counting in the High Density Effective Field Theory

Thomas Schaefer

We introduce the high density effective theory of QCD. We discuss, in particular, the problem of developing a consistent power counting scheme.

hep-ph2003★ 13 cited

Instantons and Scalar Multiquark States: From Small to Large N_c

Thomas Schaefer

We study scalar quark-anti-quark and two-quark-two-anti-quark correlation functions in the instanton liquid model. We show that the instanton liquid supports a light scalar-isoscal…

hep-ph2003★ 52 cited

Hard Loops, Soft Loops, and High Density Effective Field Theory

Thomas Schaefer

We study several issues related to the use of effective field theories in QCD at large baryon density. We show that the power counting is complicated by the appearance of two scale…

hep-ph2003★ 90 cited

Hiding relativistic degrees of freedom in the early universe

V. Barger, James P. Kneller, Paul Langacker +2

We quantify the extent to which extra relativistic energy density can be concealed by a neutrino asymmetry without conflicting with the baryon asymmetry measured by the Wilkinson M…

hep-ph2003★ 24 cited

Radiative Scalar Meson Decays in the Light-Front Quark Model

Martin A. DeWitt, Ho-Meoyng Choi, Chueng-Ryong Ji

We construct a relativistic wavefunction for scalar mesons within the framework of light-front quark model(LFQM). This scalar wavefunction is used to perform relativistic c…

hep-ph2003★ 157 cited

Effective number of neutrinos and baryon asymmetry from BBN and WMAP

V. Barger, James P. Kneller, Hye-Sung Lee +2

We place constraints on the number of relativistic degrees of freedom and on the baryon asymmetry at the epoch of Big Bang Nucleosynthesis (BBN) and at recombination, using cosmic…

hep-ph2003★ 52 cited

Transition Form Factors between Pseudoscalar and Vector Mesons in Light-Front Dynamics

Bernard L. G. Bakker, Ho-Meoyng Choi, Chueng-Ryong Ji

We study the transition form factors between pseudoscalar and vector mesons using a covariant fermion field theory model in dimensions. Performing the light-front calculati…

hep-ph2003★ 34 cited

Angular Conditions,Relations between Breit and Light-Front Frames, and Subleading Power Corrections

Carl E. Carlson, Chueng-Ryong Ji

We analyze the current matrix elements in the general collinear (Breit) frames and find the relation between the ordinary (or canonical) helicity amplitudes and the light-front hel…