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Limits on the effective quark radius from inclusive ep scattering at HERA

Physics Letters B Elsevier 757 (2016) 468-472

Authors:

Brian Foster, AM Cooper-Sarkar, RCE Devenish, C Gwenlan

Abstract:

The high-precision HERA data allows searches up to TeV scales for beyond the Standard Model contributions to electron–quark scattering. Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering corresponding to a luminosity of around 1 fb−1 have been used in this analysis. A new approach to the beyond the Standard Model analysis of the inclusive ep data is presented; simultaneous fits of parton distribution functions together with contributions of “new physics” processes were performed. Results are presented considering a finite radius of quarks within the quark form-factor model. The resulting 95% C.L. upper limit on the effective quark radius is 0.43⋅10−16 cm.
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Search for a narrow baryonic state decaying to ${pK^0_S}$ and ${\bar{p}K^0_S}$ in deep inelastic scattering at HERA

(2016)

Authors:

ZEUS Collaboration, H Abramowicz, I Abt, L Adamczyk, M Adamus, S Antonelli, V Aushev, O Behnke, U Behrens, A Bertolin, S Bhadra, I Bloch, EG Boos, I Brock, NH Brook, R Brugnera, A Bruni, PJ Bussey, A Caldwell, M Capua, CD Catterall, J Chwastowski, J Ciborowski, R Ciesielski, AM Cooper-Sarkar, M Corradi, RK Dementiev, RCE Devenish, S Dusini, B Foster, G Gach, E Gallo, A Garfagnini, A Geiser, A Gizhko, LK Gladilin, Yu A Golubkov, G Grzelak, M Guzik, C Gwenlan, W Hain, O Hlushchenko, D Hochman, R Hori, ZA Ibrahim, Y Iga, M Ishitsuka, F Januschek, NZ Jomhari, I Kadenko, S Kananov, U Karshon, P Kaur, D Kisielewska, R Klanner, U Klein, IA Korzhavina, A Kotanski, U Koetz, N Kovalchuk, H Kowalski, B Krupa, O Kuprash, M Kuze, BB Levchenko, A Levy, S Limentani, M Lisovyi, E Lobodzinska, B Loehr, E Lohrmann, A Longhin, D Lontkovskyi, O Yu Lukina, I Makarenko, J Malka, A Mastroberardino, F Mohamad Idris, N Mohammad Nasir, V Myronenko, K Nagano, T Nobe, RJ Nowak, Yu Onishchuk, E Paul, W Perlanski, NS Pokrovskiy, A Polini, M Przybycien, P Roloff, M Ruspa, DH Saxon, M Schioppa, U Schneekloth, T Schoerner-Sadenius, LM Shcheglova, R Shevchenko, O Shkola, Yu Shyrma, I Singh, IO Skillicorn, W Slominski, A Solano, L Stanco, N Stefaniuk, A Stern, P Stopa, J Sztuk-Dambietz, E Tassi, K Tokushuku, J Tomaszewska, T Tsurugai, M Turcato, O Turkot, T Tymieniecka, A Verbytskyi, WAT Wan Abdullah, K Wichmann, M Wing, S Yamada, Y Yamazaki, N Zakharchuk, AF Zarnecki, L Zawiejski, O Zenaiev, BO Zhautykov, DS Zotkin
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Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using s√=13 TeV proton--proton collisions

Phys Lett B (2016)

Authors:

AJ Barr, C Gwenlan
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Limits on the effective quark radius from inclusive $ep$ scattering at HERA

(2016)

Authors:

ZEUS Collaboration, H Abramowicz, I Abt, L Adamczyk, M Adamus, S Antonelli, V Aushev, O Behnke, U Behrens, A Bertolin, S Bhadra, I Bloch, EG Boos, I Brock, NH Brook, R Brugnera, A Bruni, PJ Bussey, A Caldwell, M Capua, CD Catterall, J Chwastowski, J Ciborowski, R Ciesielski, AM Cooper-Sarkar, M Corradi, RK Dementiev, RCE Devenish, S Dusini, B Foster, G Gach, E Gallo, A Garfagnini, A Geiser, A Gizhko, LK Gladilin, Yu A Golubkov, G Grzelak, M Guzik, C Gwenlan, W Hain, O Hlushchenko, D Hochman, R Hori, ZA Ibrahim, Y Iga, M Ishitsuka, F Januschek, NZ Jomhari, I Kadenko, S Kananov, U Karshon, P Kaur, D Kisielewska, R Klanner, U Klein, IA Korzhavina, A Kotański, U Kötz, N Kovalchuk, H Kowalski, B Krupa, O Kuprash, M Kuze, BB Levchenko, A Levy, S Limentani, M Lisovyi, E Lobodzinska, B Löhr, E Lohrmann, A Longhin, D Lontkovskyi, O Yu Lukina, I Makarenko, J Malka, A Mastroberardino, F Mohamad Idris, N Mohammad Nasir, V Myronenko, K Nagano, T Nobe, RJ Nowak, Yu Onishchuk, E Paul, W Perlański, NS Pokrovskiy, A Polini, M Przybycień, P Roloff, M Ruspa, DH Saxon, M Schioppa, U Schneekloth, T Schörner-Sadenius, LM Shcheglova, R Shevchenko, O Shkola, Yu Shyrma, I Singh, IO Skillicorn, W Słomiński, A Solano, L Stanco, N Stefaniuk, A Stern, P Stopa, D Sukhonos, J Sztuk-Dambietz, E Tassi, K Tokushuku, J Tomaszewska, T Tsurugai, M Turcato, O Turkot, T Tymieniecka, A Verbytskyi, WAT Wan Abdullah, K Wichmann, M Wing, S Yamada, Y Yamazaki, N Zakharchuk, AF Żarnecki, L Zawiejski, O Zenaiev, BO Zhautykov, DS Zotkin
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Charge collection studies in irradiated HV-CMOS particle detectors

Journal of Instrumentation IOP Publishing 11:4 (2016) P04007

Authors:

A Affolder, M Andelković, K Arndt, R Bates, A Blue, Daniela Bortoletto, C Buttar, P Caragiulo, V Cindro, D Das, J Dopke, A Dragone, F Ehrler, V Fadeyev, Z Galloway, A Gorišek, H Grabas, IM Gregor, P Grenier, A Grillo, LBA Hommels, Brian Huffman, P Phillips, K Kanisauskas, Richard Plackett, Ian Shipsey, L Vigani, J John, Stephen McMahon, R Nickerson, C Kenney, G Kramberger, Z Liang, I Mandić, D Maneuski, M Mikuž, D Muenstermann, I Perić, F Rubbo, J Segal, A Seiden, W Song, M Stanitzki, D Su, C Tamma, R Turchetta, J Volk, R Wang, M Warren, F Wilson

Abstract:

Charge collection properties of particle detectors made in HV-CMOS technology were investigated before and after irradiation with reactor neutrons. Two different sensor types were designed and processed in 180 and 350 nm technology by AMS. Edge-TCT and charge collection measurements with electrons from 90Sr source were employed. Diffusion of generated carriers from undepleted substrate contributes significantly to the charge collection before irradiation, while after irradiation the drift contribution prevails as shown by charge measurements at different shaping times. The depleted region at a given bias voltage was found to grow with irradiation in the fluence range of interest for strip detectors at the HL-LHC. This leads to large gains in the measured charge with respect to the one before irradiation. The increase of the depleted region was attributed to removal of effective acceptors. The evolution of depleted region with fluence was investigated and modeled. Initial studies show a small effect of short term annealing on charge collection.
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