Professor Brian Foster OBE, FRS: Publications

Measurement of jet production in deep inelastic scattering and NNLO determination of the strong coupling at ZEUS

European Physical Journal C Springer Nature 83:11 (2023) 1082

Authors:

I Abt, R Aggarwal, V Aushev, O Behnke, A Bertolin, I Bloch, I Brock, NH Brook, R Brugnera, A Bruni, PJ Bussey, A Caldwell, CD Catterall, J Chwastowski, J Ciborowski, R Ciesielski, AM Cooper-Sarkar, M Corradi, RK Dementiev, S Dusini, J Ferrando, B Foster, E Gallo, D Gangadharan, A Garfagnini, A Geiser, G Grzelak, C Gwenlan, D Hochman, NZ Jomhari, I Kadenko, U Karshon, P Kaur, R Klanner, U Klein, IA Korzhavina, N Kovalchuk, M Kuze, BB Levchenko, A Levy, B Löhr, E Lohrmann, A Longhin, F Lorkowski, E Lunghi, I Makarenko, J Malka, S Masciocchi, K Nagano, JD Nam, Yu Onishchuk, E Paul, I Pidhurskyi, A Polini, M Przybycień, A Quintero, M Ruspa, U Schneekloth, T Schörner-Sadenius, I Selyuzhenkov, M Shchedrolosiev, LM Shcheglova, N Sherrill, IO Skillicorn, W Słomiński, A Solano, L Stanco, N Stefaniuk, B Surrow, K Tokushuku, O Turkot, T Tymieniecka, A Verbytskyi, WAT Wan Abdullah, K Wichmann, M Wing, S Yamada, Y Yamazaki, AF Żarnecki, O Zenaiev

A hybrid, asymmetric, linear Higgs factory based on plasma-wakefield and radio-frequency acceleration

New Journal of Physics IOP Publishing 25:9 (2023) 093037-093037

Authors:

B Foster, R D’Arcy, CA Lindstrøm

Abstract:

An electron-positron collider designed for precision studies of the Higgs boson, a so-called Higgs factory is the highest-priority next collider of the particle physics community. This contribution summarises the key physics goals of such a Higgs factory and reviews the status of the various proposed realisations from mature concepts to very recent ideas. The commonalities and special advantages of circular and linear approaches will be discussed, respectively, before highlighting some recent developments regarding the key technologies, the operation scenarios and sustainability aspects for future colliders.Comment: 9 pages, contribution to proceedings of EPS-HEP 202

Search for effective Lorentz and CPT violation using ZEUS data

Physical Review D American Physical Society (APS) 107:9 (2023) 092008

Authors:

I Abt, R Aggarwal, V Aushev, O Behnke, A Bertolin, I Bloch, I Brock, NH Brook, R Brugnera, A Bruni, PJ Bussey, A Caldwell, CD Catterall, J Chwastowski, J Ciborowski, R Ciesielski, AM Cooper-Sarkar, M Corradi, RK Dementiev, S Dusini, J Ferrando, B Foster, E Gallo, D Gangadharan, A Garfagnini, A Geiser, G Grzelak, C Gwenlan, D Hochman, NZ Jomhari, I Kadenko, U Karshon, P Kaur, R Klanner, IA Korzhavina, N Kovalchuk, M Kuze, BB Levchenko, A Levy, B Löhr, A Longhin, F Lorkowski, E Lunghi, I Makarenko, J Malka, S Masciocchi, K Nagano, JD Nam, Yu Onishchuk, E Paul, I Pidhurskyi, A Polini, M Przybycień, A Quintero, M Ruspa, U Schneekloth, T Schörner-Sadenius, I Selyuzhenkov, M Shchedrolosiev, LM Shcheglova, N Sherrill, IO Skillicorn, W Słomiński, A Solano, L Stanco, N Stefaniuk, B Surrow, K Tokushuku, O Turkot, T Tymieniecka, A Verbytskyi, WAT Wan Abdullah, K Wichmann, M Wing, S Yamada, Y Yamazaki, AF Żarnecki, O Zenaiev

Measurement of the cross-section ratio σψ(2��) /σ��/ψ(1��) in exclusive photoproduction at HERA

Journal of High Energy Physics 2022:12 (2022)

Authors:

I Abt, M Adamus, R Aggarwal, V Aushev, O Behnke, A Bertolin, I Bloch, I Brock, NH Brook, R Brugnera, A Bruni, PJ Bussey, A Caldwell, CD Catterall, J Chwastowski, J Ciborowski, R Ciesielski, AM Cooper-Sarkar, M Corradi, RK Dementiev, S Dusini, J Ferrando, B Foster, E Gallo, D Gangadharan, A Garfagnini, A Geiser, G Grzelak, C Gwenlan, D Hochman, NZ Jomhari, I Kadenko, U Karshon, P Kaur, R Klanner, U Klein, IA Korzhavina, N Kovalchuk, M Kuze, BB Levchenko, A Levy, B Löhr, E Lohrmann, A Longhin, F Lorkowski, I Makarenko, J Malka, S Masciocchi, K Nagano, JD Nam, Y Onishchuk, E Paul, I Pidhurskyi, A Polini, M Przybycień, A Quintero, I Rubinsky, M Ruspa, U Schneekloth, T Schörner-Sadenius, I Selyuzhenkov, M Shchedrolosiev, LM Shcheglova, IO Skillicorn, W Słomiński, A Solano, L Stanco, N Stefaniuk, B Surrow, K Tokushuku, J Tomaszewska, A Trofymov, O Turkot, T Tymieniecka, A Verbytskyi, WAT Wan Abdullah, K Wichmann, M Wing, S Yamada, Y Yamazaki, AF Żarnecki, O Zenaiev

Abstract:

The exclusive photoproduction reactions γp → ��/ψ(1��)p and γp → ψ(2��)p have been measured at an ep centre-of-mass energy of 318 GeV with the ZEUS detector at HERA using an integrated luminosity of 373 pb−1. The measurement was made in the kinematic range 30 < W < 180 GeV, Q2< 1 GeV2 and |t| < 1 GeV2, where W is the photon-proton centre-of-mass energy, Q2 is the photon virtuality and t is the squared four-momentum transfer at the proton vertex. The decay channels used were ��/ψ(1��) → μ+μ−, ψ(2��) → μ+μ− and ψ(2��) → ��/ψ(1��)π+π− with subsequent decay ��/ψ(1��) → μ+μ−. The ratio of the production cross sections, R = σψ(2��)/σ��/ψ(1��), has been measured as a function of W and |t| and compared to previous data in photoproduction and deep inelastic scattering and with predictions of QCD-inspired models of exclusive vector-meson production, which are in reasonable agreement with the data.

Systematic study of niobium thermal treatments for superconducting radio frequency cavities employing x-ray photoelectron spectroscopy

Superconductor Science and Technology IOP Publishing 35:6 (2022) 065019

Authors:

A Prudnikava, Y Tamashevich, S Babenkov, A Makarova, D Smirnov, V Aristov, O Molodtsova, O Kugeler, J Viefhaus, B Foster

51��