Robert Kehoe

redOrbit: Astronomers Discover White Dwarf Supernovae

The news web site redOrbit has covered the SMU Physics Department’s recent supernovae discoveries. The article was published Feb. 27. Light from two massive stars that exploded hundreds of millions of years ago recently reached Earth, and each event was identified as a supernova. Both supernovae were spotted with the Robotic Optical Transient Search Experiment‘s robotic telescope ROTSE3b, which is now operated by SMU graduate students. Continue reading

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White dwarf supernovae are discovered in Virgo Cluster galaxy and in sky area “anonymous”

Light from two massive stars that exploded hundreds of millions of years ago recently reached Earth, and each event was identified as a supernova by SMU researchers.

A supernova discovered Feb. 6 exploded about 450 million years ago, and a second supernova discovered Nov. 20 exploded about 230 million years ago. Continue reading

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Observed! SMU’s LHC physicists confirm new particle; Higgs ‘God particle’ opens new frontier of exploration

Physicists from SMU and around the globe were euphoric Wednesday with the historic revelation that a new particle consistent with the Higgs boson “God” particle has been observed.

Described as a great triumph for science, the observation is the biggest physics discovery of the last 50 years and opens up what SMU scientists say is a vast new frontier for more research. Continue reading

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Fermilab: Tevatron experiments report latest results in search for Higgs boson

New measurements announced March 7 by scientists from the CDF and DZero collaborations at the Department of Energy’s Fermi National Accelerator Laboratory indicate that the elusive Higgs boson may nearly be cornered.

After analyzing the full data set from the Tevatron accelerator, which completed its last run in September 2011, the two independent experiments see hints of a Higgs boson.
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Fermilab Today: Top quark mass team wages war on two fronts

The research of SMU physicist Robert Kehoe, a professor in the SMU Department of Physics, has been featured by Fermilab Today. The magazine is the official publication of the U.S. Department of Energy’s Fermi National Accelerator Laboratory near Chicago. Fermi is a high-energy particle physics laboratory credited in 1995 with discovery of the fundamental particle, the top quark.

The article, “Top quark mass team wages war on two fronts,” appears in Fermilab Today‘s Jan. 26 edition as the “Result of the Week.”
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SMU physicists at CERN find hints of long sought after Higgs boson — dubbed the fundamental “God” particle

In a giant game of hide and seek, physicists say there are indications they finally may have found evidence of the long sought after fundamental particle called the Higgs boson.

Researchers at Switzerland-based CERN, the largest high-energy physics experiment in the world, have been seeking the Higgs boson since it was theorized in the 1960s. The so-called “God” particle is believed to play a fundamental role in solving the important mystery of why matter has mass. Continue reading

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Hunt for Higgs boson: Mass of top quark narrows search

DZerodetectorlorez.jpgNew high-energy particle research by a team working with data from Fermi National Accelerator Laboratory further heightens the uncertainty about the exact nature of a key theoretical component of modern physics — the massive fundamental particle called the Higgs boson.

Analysis of data from particle collisions resulting in two leptons helps improve measurements of the mass of another heavy subatomic particle called the top quark, says physicist Robert Kehoe at SMU, who led the team that calculated the measurement. Improving the measurement of the mass of the top quark bears on the nature of the Higgs, says Kehoe, an assistant professor in SMU’s Department of Physics.
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Before God particle, scientists must learn soul of new machine

Quadrupole%20placement%20in%20LHC%20tunnel%2C5-20-09.jpgAfter a huge success in first testing, followed by a very public meltdown last September, the Large Hadron Collider may be ready for action again as early as June.

But before the science can proceed, the world’s scientists must come to terms with the complex organism they have created, says one project manager.

“We will have to understand the detector first,” says Ryszard Stroynowski, chair and professor of physics at SMU.
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Proton-smasher’s awaited flood of data creates big job for SMU researchers

cern_model.jpgAt 10 p.m. on a Saturday night in April, a handful of SMU scientists continue working at the European Organization for Nuclear Research, called by its acronym CERN, in Geneva, Switzerland. A scattering of lights illuminates the windows in several buildings along the Rue Einstein, where researchers from dozens of countries and hundreds of institutions are combining their expertise on the Large Hadron Collider (LHC) — the biggest physics experiment in history.

Ryszard Stroynowski, chair and professor of physics at SMU, points out each building in succession to a group of visitors. “By October, every light in every one of these windows will be on all night,” he says. Continue reading

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