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XMASS anounced their solar axion limit

user@domain.com — 2012-12-28T11:06:32-08:00

XMASS dark matter experiment in Japan announced their solar axion limit, using 6.7 days, total of 5.6 ton-days.
Their limit below 1 keV axion mass is g_Ae < 5.4 × 10−11 (90% C.L.).
http://arxiv.org/abs/1212.6153 (The final plot is given below.)
Their paper can be compared to the predicted sensitivity given by Arisaka Lab's analysis:
http://arxiv.org/abs/1209.3810

How do environments talk to genes?

user@domain.com — 2012-12-21T17:52:00-08:00

In Nature Neuroscience January 2013 issue, Moshe Szyf explains the environmental interaction onto genes.
A report elucidates the widely recognized, but poorly understood, concept of gene-environment interaction, finding a molecular mechanism in the case of post-traumatic stress disorder: demethylation of a glucocorticoid response element in the stress response regulator FKBP5 that depends on both the risk allele and childhood trauma.

Nine-Year WMAP results announced

user@domain.com — 2012-12-21T20:27:00-08:00

http://arxiv.org/abs/1212.5225
http://arxiv.org/abs/1212.5226

The model fit implies that the age of the universe is 13.772+/-0.059 Gyr, and the fit Hubble constant is H0 = 69.32+/-0.80 km/s/Mpc. Inflation is also supported: the fluctuations are adiabatic, with Gaussian random phases; the detection of a deviation of the scalar spectral index from unity reported earlier by WMAP now has high statistical significance (n_s = 0.9608+/-0.0080); and the universe is close to flat/Euclidean, Omega_k = -0.0027 (+0.0039/-0.0038). Overall, the WMAP mission has resulted in a reduction of the cosmological parameter volume by a factor of 68,000 for the standard six-parameter LCDM model, based on CMB data alone.

Adrian Cheng, Named to Forbes’ 30 Under 30 as a Rising Star in Science

user@domain.com — 2012-12-17T07:55:00-08:00

A formal grad student of Arisaka Lab, Adrian Cheng, was named to "Forbes’ 30 Under 30 as a Rising Star in Science"
This is based on our development of high-speed two-photon microscopes while he was at UCLA.

The old news at UCLA in 2011 can found at Daily Bruin on Jan 18, 2011.
Our original paper was published at

Simultaneous two-photon calcium imaging at different depths with spatiotemporal multiplexing.
Cheng A, Gonçalves JT, Golshani P, Arisaka K, Portera-Cailliau C.
Nat Methods. 2011 Feb;8(2):139-42. Epub 2011 Jan 9.

6th Symposium on Large TPCs at Paris on Dec 17-19, 2012

user@domain.com — 2012-12-20T06:33:34-08:00

SIXTH SYMPOSIUM ON LARGE TPCs FOR LOW ENERGY RARE EVENT DETECTION
at PARIS 13ème, France
on December 17-19, 2012
http://www-tpc-paris.cea.fr
Presentations are posted under "Slides".

Astronomers detect nearest Earth-like neighbour

user@domain.com — 2012-12-19T03:59:01-08:00

Scientists have been surprised by the unexpected discovery of a nearby solar system using a new experimental technique.
The system of five planets ranging in size from two to six times the Earth's mass orbiting the Sun-like star Tau Ceti, just 12 light years away.
ABC News
http://arxiv.org/abs/1212.4058

'Obamadon' was wiped out by the asteroid

user@domain.com — 2012-12-11T00:40:15-08:00

Asteroid that killed the dinosaurs also wiped out the ‘Obamadon’,
The asteroid collision widely thought to have killed the dinosaurs also led to extreme devastation among snake and lizard species, according to new research — including the extinction of a newly identified lizard Yale and Harvard scientists have named Obamadon gracilis. The published paper can be fund here.

New South Pole Telescope shows Omaga = 1.006 +- 0.004

user@domain.com — 2012-10-26T09:00:00-07:00

The South Pole Telescope published the new results.
Omega_K=-0.003+0.014-0.018. Using the SPT+WMAP7 data, the spectral index of scalar fluctuations tis ns=0.9623+/-0.0097 in the LCDM model, a 3.9sigma preference for a scale-dependent spectrum with ns<1.

Neutralino excluded up to ~250 GeV

user@domain.com — 2012-11-16T10:00:00-08:00

The neutralino is excluded up to ~250 GeV.
At the Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
the new CMS results were reported.

Higgs results updated with 7 sigma

user@domain.com — 2012-11-16T09:00:00-08:00

Significance of Higgs particle has been up to 7 sigma now.
The Hadron Collider Physics Symposium 2012 hosted by Kyoto University,
The new CMS results were reported.

Higgs Particle has been discovered by LHC!

user@domain.com — 2012-07-05T07:00:00-07:00

Finally the Higgs Particle has been discovered by LHC!
Here is the Higgs -> two gamma decay, observed by CMS.
The paper is available here.

Axion search by Liquid Xenon

user@domain.com — 2012-09-17T09:00:00-07:00

Arisaka's group has studied a possibility of searching for axion and axion-like particles by liquid Xenon detectors such as XENON100 and XENON1T.

The paper has been submitted to Astroparticle Physcis Journal, and available at

http://arxiv.org/abs/1209.3810

XENON100 announced the new results from 225 days data

user@domain.com — 2012-07-25T09:00:00-07:00

The XENON100 collaboration submitted a paper with the new results of a 225 days to PRL, excluding previously unexplored parameter space and questioning the light WIMP interpretation of the DAMA and CoGeNT results.

The preprint can be found here:

http://arxiv.org/abs/1207.5988

XENON100 announced the new results

user@domain.com — 2010-05-03T12:21:00-07:00

The XENON100 collaboration submitted a paper with the first results of a 11.2 days background analysis to PRL, excluding previously unexplored parameter space and questioning the light WIMP interpretation of the DAMA and CoGeNT results.

The preprint can be found here:

arXiv:1005.0380.

These results are also covered in the media:

The New York Times
New Scientist
Nature Blog
Discover Magazine Blog
Scientific American

Wired - XENON100
August 6, 2009: An article about the hunt for Dark Matter and XENON100 appeared in the UK version of the Wired magazine.