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First measurements of the differential positronium-formation cross-sections

Positrons are the antimatter version of electrons and so their fate in a matter world is ultimately to annihilate. However, prior to this, a positron may combine with an electron to form a matter-antimatter hybrid called positronium. This is akin to a hydrogen atom with the proton replaced by a positron. Fundamental to our understanding of the physical universe, positron and positronium are these days also acknowledged as being fantastically useful in practical applications such as probing material properties and medical diagnostics. However, there is still much that we do not know for sure about the details of the interactions of these particles with ordinary matter. For example if, in a collision with an atom or molecule, a positron captures an electron, in which directions is the positronium likely to travel and with what probability? More...

Published: Jun 17, 2015 12:35:19 PM

CO2 Satellite

New calculations to improve carbon dioxide monitoring from space

How light of different colours is absorbed by carbon dioxide (CO2) can now be accurately predicted using new calculations developed by a UCL-led team of scientists. This will help climate scientists studying Earth’s greenhouse gas emissions to better interpret data collected from satellites and ground stations measuring CO2. More...

Published: Jun 15, 2015 10:29:10 AM

Watt Steam Engine

On quantum scales, there are many second laws of thermodynamics

New research from UCL has uncovered additional second laws of thermodynamics which complement the ordinary second law of thermodynamics, one of the most fundamental laws of nature. These new second laws are generally not noticeable except on very small scales, at which point, they become increasingly important. More...

Published: Feb 10, 2015 11:55:53 AM


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Dr. Stephen D. Hogan
A10 Physics Building
+44-20-7679-4324 (internal 34324)


Dr. Adam Deller
B10 Physics Building +44-20-7679-7160 (internal 37160) a.deller@ucl.ac.uk
Dr. Valentina Zhelyazkova B10 Physics Building
+44-20-7679-0692 (internal 30692) v.zhelyazkova@ucl.ac.uk

PhD students:

Robert Jirschik 235 Wilkins North +44-20-7679-3443 (internal 33443)  r.jirschik.13@ucl.ac.uk
Alexandre Morgan
James Palmer
A14 Physics Building

MSci student:

Richard Tweed
E11 Physics Building
+44-20-7679-3415 (internal 33415) 


PhD student:
Dr. Patrick Lancuba
Masters students:      
Max Wells-Pestell   2015/2016 MSci
Obi Winter   2015/2016 MSci
David Darwish
  2014/2015 MSci
Howard Ko   2013/2014 MSci
Project students:      
Richard Tweed
Summer project (EPSRC Vacation Bursary)
Alan Suganuma   2014/2015 Summer project (EPSRC Vacation Bursary)
Jamie Parkinson
  2014 Summer project (EPSRC Vacation Bursary)
Louis Heery   2014 Work experience
Albert Dow   2014 Summer project