Analysis and results of a direct measurement of the cosmic-ray proton spectrum with the CALET instrument onboard the International Space Station, including the detailed assessment of systematic uncertainties. The observation period used in this analysis is from October 13, 2015 to August 31, 2018.
Param Singh edited a focus issue "Applications of loop quantum gravity to cosmology" for Classical and Quantum Gravity
Param Singh, edited a special issue on "Applications of loop quantum gravity to cosmology" for Classical and Quantum Gravity, the premier journal for gravitational physics community. The special issue had original research articles on resolution of gravitational singularities, observational signatures of loop quantum gravity and various aspects of quantum cosmology by many prominent researchers in the field, including Abhay Ashtekar, Eberly Chair of Physics at the Pennsylvania State University, and Ivan Agullo and Peter Diener at LSU. Param Singh was then invited to write a popular article highlighting this special issue in Classical and Quantum Gravity's website CQG+
For the first time, scientists have directly detected gravitational waves — ripples in space and time — in addition to light from the spectacular collision of two neutron stars. This marks the first time that a cosmic event has been viewed in both gravitational waves and light. he discovery was made using the U.S.-based Laser Interferometer Gravitational-Wave Observatory, or LIGO; the Europe-based Virgo detector; and some 70 ground- and space-based observatories.
LSU Physicist’s Research Reveals that the Most Energetic Particles in the Cosmos Originated from Outside our Galaxy
In a paper published in the journal Science, the Pierre Auger Collaboration reports observational evidence demonstrating that cosmic rays with energies a million times greater than that of the protons accelerated in the Large Hadron Collider come from much further away than from our galaxy. Professor Jim Matthews, former co-spokesperson of the Auger Collaboration, works with more than 500 scientists from 17 countries on the world’s leading science project for the exploration of the highest energy cosmic rays to elucidate the origins and properties of the most energetic particles in the Universe. The collaboration is reconstructing the path of the Universe's most energetic cosmic rays, bringing new insights into the origin and nature of this intergalactic phenomenon.