Results 21 to 30 of about 2,205,957 (345)

The neutrino puzzle in the light of SNO [PDF]

open access: yes, 2002
SNO's neutral current measurement has added a new piece to the emerging neutrino physics puzzle. Putting together the presently available experimental information, an essentially unique picture emerges: The solar neutrino anomaly is explained by nu_e -->
Abdurashitov   +26 more
core   +3 more sources

Primordial He' abundance implied by the mirror dark matter interpretation of the DAMA/Libra signal

open access: yes, 2010
We compute the primordial mirror helium He' mass fraction emerging from Big Bang nucleosynthesis in the mirror sector of particles in the presence of kinetic mixing between photons and mirror photons.
Ahmed   +42 more
core   +1 more source

Can the mirror world explain the ortho-positronium lifetime puzzle? [PDF]

open access: yes, 2000
We suggest that the discrepant lifetime measurements of ortho-positronium can be explained by ortho-positronium oscillations into mirror ortho-positronium.
Asai   +19 more
core   +3 more sources

Report of the Preservation Management Summer School Held at The Public Record Office and The British Library, 19th-23rd July 1999

open access: yesLiber Quarterly: The Journal of European Research Libraries, 1999
In July 1999 (19th-23rd) one of the first comprehensive summer schools to be organised in the UK on preservation management was held at The Public Record Office, Kew and The British Library, St Pancras, London. Organised by The Public Record Office (PRO)
Mirjam M. Foot
doaj   +1 more source

Evolutionary and structural properties of mirror star MACHOs

open access: yes, 2005
There can exist a hidden sector of the Universe in the form of parallel ''mirror'' world which has the same particle physics as the observable world and interacts with the latter only gravitationally.
Adriano Pietrinferni   +85 more
core   +3 more sources

On the sign of the neutrino asymmetry induced by active-sterile neutrino oscillations in the early Universe [PDF]

open access: yes, 2000
We deal with the problem of the final sign of the neutrino asymmetry generated by active-sterile neutrino oscillations in the Early Universe solving the full momentum dependent quantum kinetic equations. We study the parameter region $10^{-2} \stackrel{
A. Dolgov   +30 more
core   +2 more sources

Antigos mapas gizados à ventura

open access: yesRemate de Males, 2012
Sem ...
Francisco Foot Hardman
doaj   +1 more source

Maximal $\nu_e \to \nu_s$ solution to the solar neutrino problem: just-so, MSW or energy independent?

open access: yes, 1999
We examine the maximal $\nu_e \to \nu_s$ solution to the solar neutrino problem. This solution can be motivated by the exact parity model and other theories.
Alimonti   +9 more
core   +3 more sources

Brito Broca, arqueólogo: A dignidade do detalhe

open access: yesRemate de Males, 2012
Sem ...
Francisco Foot Hardman
doaj   +1 more source

An alternative SU(4) x SU(2)L x SU(2)R model

open access: yes, 1997
A simple alternative to the usual Pati-Salam model is proposed. The model allows quarks and leptons to be unified with gauge group $SU(4) \otimes SU(2)_L \otimes SU(2)_R$ at a remarkably low scale of about 1 TeV.
Foot, R.
core   +1 more source

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