294 citations · 1.4k across the 44 of their papers we have counts for
16 papers · 1 filter
Archeology and evolution of QCD
A. De Rújula
These are excerpts from the closing talk at the "XIIth Conference on Quark Confinement and the Hadron Spectrum", which took place last Summer in Thessaloniki --an excellent place t…
The calorimetric spectrum of the electron-capture decay of Ho. The spectral endpoint region
A. De Rújula, M. Lusignoli
The electron-neutrino mass (or masses and mixing angles) may be directly measurable in weak electron-capture decays. The favoured experimental technique is "calorimetric". The opti…
The calorimetric spectrum of the electron-capture decay of Ho. A preliminary analysis of the preliminary data
A. De Rújula, M. Lusignoli
It is in principle possible to measure directly the electron neutrino mass (or masses and mixing angles) in weak electron-capture decays. The optimal nuclide in this respect is $^{…
Two old ways to measure the electron-neutrino mass
A. De Rújula
Three decades ago, the measurement of the electron neutrino mass in atomic electron capture (EC) experiments was scrutinized in its two variants: single EC and neutrino-less double…
Singular ways to search for the Higgs boson
A. De Rújula, A. Galindo
The discovery or exclusion of the fundamental standard scalar is a hot topic, given the data of LEP, the Tevatron and the LHC, as well as the advanced status of the pertinent theor…
Measuring the W-Boson mass at a hadron collider: a study of phase-space singularity methods
A. De Rújula, A. Galindo
The traditional method to measure the W-Boson mass at a hadron collider (more precisely, its ratio to the Z-mass) utilizes the distributions of three variables in events where the…
QED confronts the radius of the proton
A. De Rújula
Recent results on muonic hydrogen [1] and the ones compiled by CODATA on ordinary hydrogen and -scattering [2] are away from each other. Two reasons justify a further look…
QED is not endangered by the proton's size
A. De Rújula
Pohl et al. have reported a very precise measurement of the Lamb-shift in muonic Hydrogen, from which they infer the radius characterizing the proton's charge distribution. The res…
Comment on "The third Zemach moment of the proton", by Cloet and Miller
A. De Rújula
Cloet and Miller, in arXiv:1008.4345, state that "existing data rule out a value of the third Zemach moment large enough to explain the current puzzle with the proton charge radius…
To be or not to be: Higgs impostors at the LHC
A. De Rujula
Consider the day when an invariant mass peak, roughly compatible with "the Higgs", begins to emerge, say at the LHC, ... and may you see that day. There will be a difference betwee…
Higgs look-alikes at the LHC
A. De Rujula, Joseph Lykken, Maurizio Pierini +2
The discovery of a Higgs particle is possible in a variety of search channels at the LHC. However the true identity of any putative Higgs boson will at first remain ambiguous, unti…
Fat Brane Phenomena
A. De Rujula, A. Donini, M. B. Gavela +1
Gravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to ``branes''. We point out that these branes could be ``fat'' and have…
The atmospheric neutrino anomaly without maximal mixing?
A. De Rujula, M. B. Gavela, P. Hernandez
We consider a pattern of neutrino masses in which there is an approximate mass degeneracy between the two mass eigenstates most coupled to the and flavour eigenstates.…
Will relativistic heavy-ion colliders destroy our planet?
Arnon Dar, A. De Rújula, Ulrich Heinz
Experiments at the Brookhaven National Laboratory will study collisions between gold nuclei at unprecedented energies. The concern has been voiced that ``strangelets''-hypothetical…
On the photon constituency of protons
A. De Rujula, W. Vogelsang
We argue that existing measurements of ep collisions at HERA --in which an energetic photon is made via a QED `Compton' subprocess-- can provide rather detailed information on the…
Neutrino oscillation physics with a neutrino factory
A. De Rujula, M. B. Gavela, P. Hernandez
Data from atmospheric and solar neutrinos indicate that there are at least three neutrino types involved in oscillation phenomena. Even if the corresponding neutrino mass scales ar…