Prof. Daniel Watts

Personal Chair in Hadron & Nuclear Physics
Research Theme:
Particle and Nuclear Physics
Research Group:
Nuclear Physics
Email address:
Telephone number:
+44 (0)131 650 5286
School of Physics and Astronomy, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom

Research interests

Prof Watts' research exploits intense beams of electrons or high energy photons to obtain a deeper understanding of the nature of strongly interacting matter. The experiments are carried out at overseas laboratories such as the Thomas Jefferson National Laboratory (JLab) in the USA and the Mainz Microtron (MAMI) in Germany.

Precision measurements on nuclei characterise the size and shape of the neutron skin, which constrains the equation of state for neutron rich matter. This impacts our understanding of compact astrophysical objects such as neutron stars.  Prof Watts leads experiments and equipment developments to extract the excitation spectrum of the nucleon, which will test if our theory of the strong interaction (Quantum Chromo Dynamics) can fully describe pheneomena at the distance scales appropriate to the atomic nucleus. Research using mesons (bound systems of two quarks) offers further insight into the quark confinement process. Prof Watts is a spokeseperson on a major new "MesonEx" experiment at JLab to hunt for exotic hybrid mesons which will give new constraints on our understanding of the quark confinement process and mass generation mechanisms.   


Prof Watts teaches the quantum physics topics in the first year physics course (Physics 1B) and is also an experimental lab head. He also teaches the Musical Acoustics and Introductory Musical acoustics courses. At postgraduate level he teaches the Nuclear Forces and Reaction Theory course within the SUPA graduate school 

Research outputs

  1. Determination of the proton spin structure functions for 0.05<Q2<5GeV2 using CLAS DOI
    R. G. Fersch, N. Guler, P. Bosted, A. Deur, K. Griffioen, C. Keith, S. E. Kuhn, R. Minehart, Y. Prok, K. P. Adhikari et al., Physical Review C, 96, 6 (2017)
  2. Measurement of the differential and total cross sections of the gamma&ITd&IT -> &(&ITp&IT) reaction within the resonance region DOI
    N. Compton, C. E. Taylor, K. Hicks, P. Cole, N. Zachariou, Y. Ilieva, P. Nadel-Turonski, E. Klempt, V. A. Nikonov, A. V. Sarantsev et al., Physical Review C, 96, 6 (2017)
  3. First Exclusive Measurement of Deeply Virtual Compton Scattering off He-4 DOI
    M. Hattawy, N. A. Baltzell, R. Dupre, K. Hafidi, S. Stepanyan, S. Bultmann, R. De Vita, A. El Alaoui, L. El Fassi, H. Egiyan et al., Physical Review Letters, 119, 20 (2017)
  4. Photon beam asymmetry Sigma in the reaction -> p omega for E-gamma=1.152 to 1.876 GeV DOI
    P. Collins, B. G. Ritchie, M. Dugger, F. J. Klein, A. V. Anisovich, E. Klempt, V. A. Nikonov, A. Sarantsev, K. P. Adhikari, S. Adhikari et al., Physics Letters B, 773, p. 112-120 (2017)
  5. Differential Cross Section Measurements for $γn\toπ^-p$ Above the First Nucleon Resonance Region DOI
    P. T. Mattione, D. S. Carman, I. I. Strakovsky, R. L. Workman, A. E. Kudryavtsev, A. Svarc, V. E. Tarasov, K. P. Adhikari, S. Adhikari, D. Adikaram et al., Physical Review C, 96, 035294 (2017)
  6. Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states DOI
    A. V. Anisovich, K. Hicks, E. Klempt, V. A. Nikonov, A. Sarantsev, W. Tang, D. Adikaram, Z. Akbar, M. J. Amaryan, S. Anefalos Pereira et al., Physics Letters B, 771, p. 142-150 (2017)
  7. First measurement of the polarization observable E and helicity-dependent cross sections in single pi(0) photoproduction from quasi-free nucleons DOI
    M. Dieterle, L. Witthauer, F. Cividini, S. Abt, P. Achenbach, P. Adlarson, F. Afzal, Z. Ahmed, C. S. Akondi, J. R. M. Annand et al., Physics Letters B, 770, p. 523-531 (2017)
  8. Beam-Target Helicity Asymmetry for →γ→n→π−p in the N∗Resonance Region DOI
    D. Ho, P. Peng, C. Bass, P. Collins, A. D'Angelo, A. Deur, J. Fleming, C. Hanretty, T. Kageya, M. Khandaker et al., Physical Review Letters, 118, 24 (2017)
  9. Measurement of two-photon exchange effect by comparing elastic e(+/-)p cross sections DOI
    D. Rimal, D. Adikaram, B. A. Raue, L. B. Weinstein, J. Arrington, W. K. Brooks, M. Ungaro, K. P. Adhikari, A. V. Afanasev, Z. Akbar et al., Physical Review C, 95, 6 (2017)
  10. Study of eta and eta' Photoproduction at MAMI DOI
    V. L. Kashevarov, P. Ott, S. Prakhov, P. Adlarson, F. Afzal, Z. Ahmed, C. S. Akondi, J. R. M. Annand, H. J. Arends, R. Beck et al., Physical Review Letters, 118, 21 (2017)
Last updated: 19 Feb 2018 at 21:11