Imperial College London


Faculty of Natural SciencesDepartment of Physics

Research Associate







530Blackett LaboratorySouth Kensington Campus





Our current understanding of physics does not explain why the universe around us is made overwhelmingly of matter and not antimatter. My work studies differences between matter and antimatter in the oscillatory behaviour of a type of particle called the neutrino as it travels long distances.

I am convener of the Japan-based T2K experiment's oscillation analysis group which has produced the strongest indication of these matter-antimatter differences to date (published on the cover of Nature in early 2020).

Going forward I will use larger datasets from the T2K experiment and joint analyses of data from T2K and the NOvA experiment in the USA to produce the strongest measurements of these matter-antimatter differences this decade. I am also involved in the development of the future DUNE experiment which will have the sensitivity to definitively confirm and precisely measure this phenomenon.

Selected Publications

Journal Articles

Abe K, Akutsu R, Ali A, et al., 2020, Constraint on the matter-antimatter symmetry-violating phase in neutrino oscillations, Nature, Vol:580, ISSN:0028-0836, Pages:339-344

Abe K, Akutsu R, Amey J, et al., 2018, Search for CP violation in neutrino and antineutrino oscillations by the T2K experiment with 2.2 x 10(21) protons on target, Physical Review Letters, Vol:121, ISSN:0031-9007

Abe K, Amey J, Andreopoulos C, et al., 2017, Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of nu(e) interactions at the far detector, Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol:96, ISSN:1550-2368

Khachatryan V, Sirunyan AM, Tumasyan A, et al., 2017, Searches for invisible decays of the Higgs boson in pp collisions at √s = 7, 8, and 13 TeV, The Journal of High Energy Physics, Vol:2017, ISSN:1029-8479

Chatrchyan S, Khachatryan V, Sirunyan AM, et al., 2014, Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes, European Physical Journal C, Vol:74, ISSN:1434-6044

Abe K, Akhlaq N, Akutsu R, et al., T2K measurements of muon neutrino and antineutrino disappearance using $3.13\times 10^{21}$ protons on target

More Publications