ATLAS observes elusive Higgs boson decay to a pair of bottom quarks

The ATLAS Collaboration at CERN's Large Hadron Collider (LHC) has – at long last – observed the Higgs boson decaying into a pair of bottom (b) quarks. This elusive interaction is predicted to make up almost 60% of the Higgs boson decays and is thus primarily responsible for the Higgs natural width. Yet it took over six years after the 2012 discovery of the Higgs boson to accomplish this observation.

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MAGIC telescopes trace origin of a rare cosmic neutrino

For the first time, astrophysicists have localised the source of a cosmic neutrino originated outside of the Milky Way. With high probability, the neutrino comes from a blazar, an active black hole at the centre of a distant galaxy in the Orion constellation.

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ATLAS observes interaction between Higgs boson and top quark, the heaviest known elementary particle

The ATLAS Collaboration at CERN has announced the observation of Higgs bosons produced together with a top-quark pair. Observing this extremely rare process is a significant milestone for the field of High-Energy Physics. It allows physicists to test critical parameters of the Higgs mechanism in the Standard Model of particle physics.

Since 2011 the IFAE-ATLAS group has led searches for ttH production, focusing on the dominant Higgs boson decay mode into a bottom-antibottom-quark pair (H->bb)


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Two research positions in advanced instrumentation and techniques for particle physics, astrophysics or medical applications

Appointments will be at the tenure-track level.  The appointees will be expected to establish and lead new competitively funded activities centered on novel instrumentation developments. Salary will be commensurate with experience and Significant startup funds will be provided.

Deadline for application is March 12, 2018

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Dark Energy Survey publicly releases first three years of data

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Scientists spot explosive counterpart of LIGO/Virgo's latest gravitational waves

Scientists using the Dark Energy Camera have captured images of the aftermath of a neutron star collision, the source of LIGO/Virgo's most recent gravitational wave detection

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The Cherenkov Telescope Array Releases its Updated Science Case

The latest iteration of the Cherenkov Telescope Array's (CTA's) science case, Science with the Cherenkov Telescope Array, was made available today via the CTA website library and arXiv and will be published in a special edition of the International Journal of Modern Physics D.

The work includes more than 200 pages that introduce and elaborate on CTA's major science themes and place CTA in the context of other major observatories.

Link to Press release in English and Spanish


T2K presents hint of CP violation by neutrinos

The international T2K Collaboration strengthened its previous hint that the symmetry between matter and antimatter may be violated for neutrino oscillation. A preliminary analysis of T2K's latest data rejects the hypothesis that neutrinos and antineutrinos oscillate with the same probability at 95% confidence (2σ) level

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Dark Energy Survey reveals most accurate measurement of dark matter structure in the universe

  • New result rivals precision of cosmic microwave background measurements, supports view that dark matter and dark energy make up most of the cosmos
  • Researchers from Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , el Institut de Ciències de l'Espai (IEEC-CSIC) , el Institut de Física d'Altes Energies (IFAE) and el Instituto de Física Teórica (UAM-CSIC) have contributed to the result

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DUNE: Construction begins on international mega-science experiment to understand neutrinos

  • Groundbreaking held on Friday the 21st in South Dakota marks the start of excavation for the Long-Baseline Neutrino Facility, future home to the international Deep Underground Neutrino Experiment (DUNE).
  • Four Spanish scientific institutions participate in this great experiment. IFAE participates in the development of the ProtoDUNE-DP light detection system

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