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Longitudinal and Transverse Instability of Ion Acoustic Waves

Stephan Brunner

Ion acoustic waves are found to be susceptible to at least two distinct decay processes. Which process dominates depends on the parameters. In the cases examined, the decay channel where daughter modes propagate parallel to the mother mode is found to domi ...

Amer Physical Soc2017

The early days of the Sculptor dwarf spheroidal galaxy

Pascale Jablonka, Pierre North, Yves Revaz

We present the high-resolution spectroscopic study of five -3.9

Edp Sciences S A2015

On the Viability of Heterolytic Peptide N-Calpha Bond Cleavage in Electron Capture and Transfer Dissociation Mass Spectrometry

Yury Tsybin, Matthew Wodrich, Anne-Clémence Corminboeuf, Konstantin Zhurov

While frequently employed as an experimental technique, the mechanistic picture surrounding the gas-phase dissociation of peptides carrying multiple positive charges during electron capture and electron transfer dissociation tandem mass spectrometry remain ...

Amer Chemical Soc2014

Measurement of resonant and CP components in (B)over-bar(s)(0) -> J/psi pi(+)pi(-) decays

Olivier Schneider, Yiming Li, Aurelio Bay, Guido Haefeli, Frédéric Blanc, Christoph Frei, Tatsuya Nakada, Julien Rouvinet, Barinjaka Rakotomiaramanana, Raluca Anca Muresan

Structure of the decay _ B0s. J=.p_p- is studied using data corresponding to 3 fb- 1 of integrated luminosity from pp collisions produced by the LHC and collected by the LHCb detector. Five interfering p_p- states are required to describe the decay: F-0(98 ...

American Physical Society2014

Sputtered titanium oxynitride coatings for endosseous applications: Physical and chemical evaluation and first bioactivity assays

Rosendo Sanjines, Alessandro Pontearso

Titanium oxynitride coatings (TiNxO3,) are considered a promising material for applications in dental implantology due to their high corrosion resistance, their biocompatibility and their superior hardness. Using the sputtering technique, TiNxO3, films wit ...

Elsevier Science Bv2014

Probing the origin of cosmic rays with extremely high energy neutrinos using the IceCube Observatory

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Mark Tobin, Sofia Vallecorsa, Xiaoxia Bai

We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino-induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we in ...

American Physical Society2013

HST/WFC3 Near-Infrared spectroscopy of quenched galaxies at z~1.5 from the WISP Survey: Stellar population properties

Hakim Atek

We combine Hubble Space Telescope (HST) G102 and G141 near-IR (NIR) grism spectroscopy with HST/WFC3UVIS, HST/WFC3-IR, and Spitzer/IRAC [3.6 mu m] photometry to assemble a sample ofmassive (log(M-star/M-circle dot) similar to 11.0) and quenched (specific s ...

American Astronomical Society2013

Background studies for acoustic neutrino detection at the South Pole

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

The detection of acoustic signals from ultra-high energy neutrino interactions is a promising method to measure the flux of cosmogenic neutrinos expected on Earth. The energy threshold for this process depends strongly on the absolute noise level in the ta ...

2012

Acoustic resonant sensor for ultra high energy neutrino detection

Mathieu Ribordy, Reto Frei

The characterization of the cosmogenic neutrino flux would give insights into cosmological source evolution, source spectra and composition at injection, through the partial recovery of the degraded information carried by the ultra high energy cosmic rays. ...

2011

Isobaric production cross sections from 0.6 GeV proton irradiation of neptunium and thorium using mass spectrometry

Rakesh Chawla

A high-fluence proton irradiation of neptunium was the last experiment in PSIs programme ATHENA related to accelerator-based transmutation. The principal aim of the programme has been to provide experimental data for the validation of theoretical models in ...

Elsevier2006