Laser experiments explore the hidden sector
Recently, the laser experiments BMV and GammeV, searching for light shining through walls, have published data and calculated new limits on the allowed masses and couplings for axion-like particles. In this note we point out that these experiments can serve to constrain a much wider variety of hidden-sector particles such as, e.g., minicharged particles and hidden-sector photons. The new experimen
First results from DAMA/LIBRA and the combined results with DAMA/NaI
The highly radiopure $\simeq$ 250 kg NaI(Tl) DAMA/LIBRA set-up is running at the Gran Sasso National Laboratory of the I.N.F.N.. In this paper the first result obtained by exploiting the model independent annual modulation signature for Dark Matter (DM) particles is presented. It refers to an exposure of 0.53 ton$\times$yr. The collected DAMA/LIBRA data satisfy all the many peculiarities of the DM
Gun stops bullets in mid-air › News in Science (ABC Science)
Physicists have managed to stop atom-sized 'bullets' travelling at 500 metres per second in mid-air, which they say might help them weigh neutrinos (Source: iStockphoto) Scientists have figured out how to stop a bullet, albeit a very tiny one, in mid-air. US researchers at the University of Texas at Austin have built a so-called coilgun that works in reverse, stopping atom- and molecule-sized bull
プランク単位系 - Wikipedia
プランク単位系は物理学者によって「神の単位」と半ばユーモラスに言及される。自然単位系は「人間中心的な自由裁量が除かれた単位系」であり、ごく一部の物理学者は「地球外の知的生命体も同じ単位系を使用しているに違いない」と信じている。 プランク単位系は、物理学者が問題を再構成するのに役立つ。一方、日常的なスケールからかけ離れたものが多いうえ、基準となる物理定数のうち万有引力定数の不確かさが大きいため、実用には不向きである。
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arXiv mirror jp.arxiv.org has been discontinued
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arXiv mirror jp.arxiv.org has been discontinued
arXiv mirror jp.arxiv.org has been discontinued
CERN Document Server
Neutrino Mass Differences and Nonunitarity of Neutrino Mixing Matrix from Interfering Recoil Ions
Reply on ``Comment on neutrino-mixing interpretation of the GSI time anomaly''by C. Giunti, arXiv:0801.4639 [nucl-th]
Comment on the Neutrino-Mixing Interpretation of the GSI Time Anomaly
Observation of Non-Exponential Orbital Electron Capture Decays of Hydrogen-Like $^{140}$Pr and $^{142}$Pm Ions
A possible anthropic solution to the Strong CP problem
Neutrino masses from the GSI anomaly
The DAMA/LIBRA apparatus
On the time-modulation of the K-shell electron capture decay of H-like 140Pr58+ ions produced by neutrino-flavour mixing