She is an expert on deep inelastic scattering and parton distribution functions.
After working as an exchange fellow at the Tata Institute of Fundamental Research in Mumbai, India and then at the National Laboratory for High Energy Physics in Tsukuba, Japan, she returned to England as a research associate at the Rutherford Appleton Laboratory in Oxfordshire, in 1979.
[1][3] She left academia to work at an educational institute in Bhopal, India, but in 1990, with the birth of her first child, she returned to Oxford with a plan to "combine undergraduate teaching with childcare, soft-peddling on the research".
[2] She became a Beale Fellow and Senior Tutor in Physics at St Hilda's College, Oxford.
[6] She won the 2015 James Chadwick Medal and Prize "for her study of deep inelastic scattering of leptons on nuclei which has revealed the internal structure of the proton".