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Department of Physics
Credit: Jack Hobhouse

Stephanie Yang

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Stephanie.Yang@physics.ox.ac.uk
Telephone: 01865 (2)73425
Denys Wilkinson Building, room Mechanical Design Office,186.40.59A (406)
  • About
  • Publications

The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment

Journal of Instrumentation 7:5 (2012)

Authors:

M Bogomilov, Y Karadzhov, D Kolev, I Russinov, R Tsenov, G Vankova-Kirilova, L Wang, FY Xu, SX Zheng, R Bertoni, M Bonesini, F Ferri, G Lucchini, R Mazza, F Paleari, F Strati, V Palladino, G Cecchet, A De Bari, M Capponi, A Cirillo, A Iaciofano, A Manfredini, M Parisi, D Orestano, F Pastore, A Tonazzo, L Tortora, Y Mori, Y Kuno, H Sakamoto, A Sato, T Yano, M Yoshida, S Ishimoto, S Suzuki, K Yoshimura, F Filthaut, R Garoby, S Gilardoni, P Gruber, K Hanke, H Haseroth, P Janot, A Lombardi, S Ramberger, M Vretenar, P Bene, A Blondel, F Cadoux, JS Graulich, V Grichine, E Gschwendtner, F Masciocchi, R Sandstrom, V Verguilov, H Wisting, C Petitjean, R Seviour, J Alexander, G Charnley, N Collomb, S Griffiths, B Martlew, A Moss, I Mullacrane, A Oates, P Owens, C White, S York, D Adams, R Apsimon, P Barclay, DE Baynham, TW Bradshaw, M Courthold, P Drumm, R Edgecock, T Hayler, M Hills, Y Ivaniouchenkov, A Jones, A Lintern, C MacWaters, C Nelson, A Nichols, R Preece, S Ricciardi, JH Rochford, C Rogers, W Spensley, J Tarrant, K Tilley, S Watson, A Wilson, D Forrest, FJP Soler, K Walaron, P Cooke, R Gamet

Abstract:

The international Muon Ionization Cooling Experiment (MICE), which is under construction at the Rutherford Appleton Laboratory (RAL), will demonstrate the principle of ionization cooling as a technique for the reduction of the phase-space volume occupied by a muon beam. Ionization cooling channels are required for the Neutrino Factory and the Muon Collider. MICE will evaluate in detail the performance of a single lattice cell of the Feasibility Study 2 cooling channel. The MICE Muon Beam has been constructed at the ISIS synchrotron at RAL, and in MICE Step I, it has been characterized using the MICE beam-instrumentation system. In this paper, the MICE Muon Beam and beam-line instrumentation are described. The muon rate is presented as a function of the beam loss generated by the MICE target dipping into the ISIS proton beam. For a 1 V signal from the ISIS beam-loss monitors downstream of our target we obtain a 30 KHz instantaneous muon rate, with a neglible pion contamination in the beam. © 2012 IOP Publishing Ltd and Sissa Medialab srl.
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Generation of scaled protogalactic seed magnetic fields in laser-produced shock waves

Nature 481:7382 (2012) 480-483

Authors:

G Gregori, A Ravasio, CD Murphy, K Schaar, A Baird, AR Bell, A Benuzzi-Mounaix, R Bingham, C Constantin, RP Drake, M Edwards, ET Everson, CD Gregory, Y Kuramitsu, W Lau, J Mithen, C Niemann, HS Park, BA Remington, B Reville, APL Robinson, DD Ryutov, Y Sakawa, S Yang, NC Woolsey, M Koenig, F Miniati

Abstract:

The standard model for the origin of galactic magnetic fields is through the amplification of seed fields via dynamo or turbulent processes to the level consistent with present observations. Although other mechanisms may also operate, currents from misaligned pressure and temperature gradients (the Biermann battery process) inevitably accompany the formation of galaxies in the absence of a primordial field. Driven by geometrical asymmetries in shocks associated with the collapse of protogalactic structures, the Biermann battery is believed to generate tiny seed fields to a level of about 10 -21 gauss (refs 7, 8). With the advent of high-power laser systems in the past two decades, a new area of research has opened in which, using simple scaling relations, astrophysical environments can effectively be reproduced in the laboratory. Here we report the results of an experiment that produced seed magnetic fields by the Biermann battery effect. We show that these results can be scaled to the intergalactic medium, where turbulence, acting on timescales of around 700 million years, can amplify the seed fields sufficiently to affect galaxy evolution. © 2012 Macmillan Publishers Limited. All rights reserved.
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Generation of scaled protogalactic seed magnetic fields in laser-produced shock waves.

Nature 481:7382 (2012) 480-483

Authors:

G Gregori, A Ravasio, CD Murphy, K Schaar, A Baird, AR Bell, A Benuzzi-Mounaix, R Bingham, C Constantin, RP Drake, M Edwards, ET Everson, CD Gregory, Y Kuramitsu, W Lau, J Mithen, C Niemann, H-S Park, BA Remington, B Reville, APL Robinson, DD Ryutov, Y Sakawa, S Yang, NC Woolsey, M Koenig, F Miniati

Abstract:

The standard model for the origin of galactic magnetic fields is through the amplification of seed fields via dynamo or turbulent processes to the level consistent with present observations. Although other mechanisms may also operate, currents from misaligned pressure and temperature gradients (the Biermann battery process) inevitably accompany the formation of galaxies in the absence of a primordial field. Driven by geometrical asymmetries in shocks associated with the collapse of protogalactic structures, the Biermann battery is believed to generate tiny seed fields to a level of about 10(-21) gauss (refs 7, 8). With the advent of high-power laser systems in the past two decades, a new area of research has opened in which, using simple scaling relations, astrophysical environments can effectively be reproduced in the laboratory. Here we report the results of an experiment that produced seed magnetic fields by the Biermann battery effect. We show that these results can be scaled to the intergalactic medium, where turbulence, acting on timescales of around 700 million years, can amplify the seed fields sufficiently to affect galaxy evolution.
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Evidence for a Particle Produced in Association with Weak Bosons and Decaying to a Bottom-Antibottom Quark Pair in Higgs Boson Searches at the Tevatron

PHYSICAL REVIEW LETTERS 109:7 (2012) ARTN 071804

Authors:

T Aaltonen, VM Abazov, B Abbott, BS Acharya, M Adams, T Adams, GD Alexeev, G Alkhazov, A Alton, B Alvarez Gonzalez, G Alverson, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Askew, S Atkins, B Auerbach, K Augsten, A Aurisano, C Avila, F Azfar, F Badaud, W Badgett, T Bae, L Bagby, B Baldin, DV Bandurin, S Banerjee, A Barbaro-Galtieri, E Barberis, P Baringer, VE Barnes, BA Barnett, P Barria, JF Bartlett, P Bartos, U Bassler, M Bauce, V Bazterra, A Bean, F Bedeschi, M Begalli, S Behari, L Bellantoni, G Bellettini, J Bellinger, D Benjamin, A Beretvas, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besancon, R Beuselinck, PC Bhat, S Bhatia, V Bhatnagar, A Bhatti, M Binkley, D Bisello, I Bizjak, KR Bland, G Blazey, S Blessing, K Bloom, B Blumenfeld, A Bocci, A Bodek, A Boehnlein, D Boline, EE Boos, G Borissov, D Bortoletto, T Bose, J Boudreau, A Boveia, A Brandt, O Brandt, L Brigliadori, R Brock, C Bromberg, A Bross, D Brown, J Brown, E Brucken, J Budagov, XB Bu, HS Budd, M Buehler, V Buescher, V Bunichev, S Burdin, K Burkett, G Busetto, P Bussey, CP Buszello, A Buzatu, A Calamba, C Calancha, E Camacho-Perez, S Camarda, M Campanelli, M Campbell, F Canelli, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, BCK Casey, H Castilla-Valdez, A Castro, P Catastini, S Caughron, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, E Chapon, G Chen, YC Chen, M Chertok, S Chevalier-Thery, G Chiarelli, G Chlachidze, F Chlebana, DK Cho, K Cho, SW Cho, S Choi, D Chokheli, B Choudhary, WH Chung, YS Chung, S Cihangir, MA Ciocci, D Claes, A Clark, C Clarke, J Clutter, G Compostella, ME Convery, J Conway, M Cooke, WE Cooper, M Corbo, M Corcoran, M Cordelli, F Couderc, M-C Cousinou, CA Cox, DJ Cox, F Crescioli, A Croc, J Cuevas, R Culbertson, D Cutts, D Dagenhart, N d'Ascenzo, A Das, M Datta, G Davies, P de Barbaro, SJ de Jong, E De La Cruz-Burelo, F Deliot, M Dell'Orso, R Demina, L Demortier, M Deninno, D Denisov, SP Denisov, M d'Errico, S Desai, C Deterre, K DeVaughan, F Devoto, A Di Canto, B Di Ruzza, HT Diehl, M Diesburg, PF Ding, JR Dittmann, A Dominguez, S Donati, P Dong, M D'Onofrio, M Dorigo, T Dorigo, A Dubey, LV Dudko, D Duggan, A Duperrin, S Dutt, A Dyshkant, M Eads, K Ebina, D Edmunds, A Elagin, J Ellison, VD Elvira, Y Enari, A Eppig, R Erbacher, S Errede, N Ershaidat, R Eusebi, H Evans, A Evdokimov, VN Evdokimov, G Facini, S Farrington, M Feindt, L Feng, T Ferbel, JP Fernandez, C Ferrazza, F Fiedler, R Field, F Filthaut, W Fisher, HE Fisk, G Flanagan, R Forrest, M Fortner, H Fox, MJ Frank, M Franklin, JC Freeman, S Fuess, Y Funakoshi, M Gallinaro, A Garcia-Bellido, JE Garcia, JA Garcia-Gonzalez, GA Garcia-Guerra, AF Garfinkel, P Garosi, V Gavrilov, P Gay, W Geng, D Gerbaudo, CE Gerber, H Gerberich, E Gerchtein, Y Gershtein, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, CM Ginsburg, G Ginther, N Giokaris, P Giromini, G Giurgiu, V Glagolev, D Glenzinski, M Gold, D Goldin, N Goldschmidt, A Golossanov, G Golovanov, G Gomez-Ceballos, G Gomez, M Goncharov, O Gonzalez, I Gorelov, AT Goshaw, K Goulianos, A Goussiou, PD Grannis, S Greder, H Greenlee, G Grenier, S Grinstein, Ph Gris, J-F Grivaz, A Grohsjean, C Grosso-Pilcher, RC Group, S Gruenendahl, MW Gruenewald, T Guillemin, J Guimaraes da Costa, G Gutierrez, P Gutierrez, S Hagopian, SR Hahn, J Haley, E Halkiadakis, A Hamaguchi, JY Han, L Han, F Happacher, K Hara, K Harder, D Hare, M Hare, A Harel, RF Harr, K Hatakeyama, JM Hauptman, C Hays, J Hays, T Head, T Hebbeker, M Heck, D Hedin, H Hegab, J Heinrich, AP Heinson, U Heintz, C Hensel, I Heredia-De La Cruz, M Herndon, K Herner, G Hesketh, S Hewamanage, MD Hildreth, R Hirosky, T Hoang, JD Hobbs, A Hocker, B Hoeneisen, J Hogan, M Hohlfeld, W Hopkins, D Horn, S Hou, I Howley, Z Hubacek, RE Hughes, M Hurwitz, U Husemann, N Hussain, M Hussein, J Huston, V Hynek, I Iashvili, Y Ilchenko, R Illingworth, G Introzzi, M Iori, AS Ito, A Ivanov, S Jabeen, M Jaffre, E James, D Jang, A Jayasinghe, B Jayatilaka, DT Jeans, EJ Jeon, MS Jeong, R Jesik, P Jiang, S Jindariani, K Johns, E Johnson, M Johnson, A Jonckheere, M Jones, P Jonsson, KK Joo, J Joshi, SY Jun, AW Jung, TR Junk, A Juste, K Kaadze, E Kajfasz, T Kamon, PE Karchin, D Karmanov, A Kasmi, PA Kasper, Y Kato, I Katsanos, R Kehoe, S Kermiche, W Ketchum, J Keung, N Khalatyan, A Khanov, A Kharchilava, YN Kharzheev, V Khotilovich, B Kilminster, DH Kim, HS Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YJ Kim, YK Kim, N Kimura, M Kirby, I Kiselevich, S Klimenko, K Knoepfel, JM Kohli, K Kondo, DJ Kong, J Konigsberg, AV Kotwal, AV Kozelov, J Kraus, M Kreps, J Kroll, D Krop, M Kruse, V Krutelyov, T Kuhr, S Kulikov, A Kumar, A Kupco, M Kurata, T Kurca, VA Kuzmin, S Kwang, AT Laasanen, S Lami, S Lammel, S Lammers, M Lancaster, RL Lander, K Lannon, A Lath, G Latino, P Lebrun, T LeCompte, E Lee, HS Lee, HS Lee, JS Lee, SW Lee, SW Lee, WM Lee, X Lei, J Lellouch, S Leo, S Leone, JD Lewis, D Li, H Li, L Li, QZ Li, JK Lim, A Limosani, D Lincoln, C-J Lin, M Lindgren, J Linnemann, VV Lipaev, E Lipeles, R Lipton, A Lister, DO Litvintsev, C Liu, H Liu, H Liu, Q Liu, T Liu, Y Liu, A Lobodenko, S Lockwitz, A Loginov, M Lokajicek, R Lopes de Sa, HJ Lubatti, D Lucchesi, J Lueck, P Lujan, P Lukens, R Luna-Garcia, G Lungu, AL Lyon, R Lysak, J Lys, AKA Maciel, R Madar, R Madrak, P Maestro, R Magana-Villalba, S Malik, S Malik, VL Malyshev, G Manca, A Manousakis-Katsikakis, Y Maravin, F Margaroli, C Marino, M Martinez, J Martinez-Ortega, P Mastrandrea, K Matera, ME Mattson, A Mazzacane, P Mazzanti, R McCarthy, KS McFarland, CL McGivern, P McIntyre, R McNulty, A Mehta, P Mehtala, MM Meijer, A Melnitchouk, D Menezes, PG Mercadante, M Merkin, C Mesropian, A Meyer, J Meyer, T Miao, F Miconi, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, NK Mondal, MN Mondragon, CS Moon, R Moore, MJ Morello, J Morlock, P Movilla Fernandez, A Mukherjee, M Mulhearn, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, E Nagy, M Naimuddin, I Nakano, A Napier, M Narain, R Nayyar, HA Neal, JP Negret, J Nett, MS Neubauer, C Neu, P Neustroev, HT Nguyen, J Nielsen, L Nodulman, SY Noh, O Norniella, T Nunnemann, L Oakes, SH Oh, YD Oh, I Oksuzian, T Okusawa, R Orava, J Orduna, L Ortolan, N Osman, J Osta, M Padilla, S Pagan Griso, C Pagliarone, A Pal, E Palencia, V Papadimitriou, AA Paramonov, N Parashar, V Parihar, SK Park, R Partridge, N Parua, J Patrick, A Patwa, G Pauletta, M Paulini, C Paus, DE Pellett, B Penning, A Penzo, M Perfilov, Y Peters, K Petridis, G Petrillo, P Petroff, TJ Phillips, G Piacentino, E Pianori, J Pilot, K Pitts, C Plager, M-A Pleier, PLM Podesta-Lerma, VM Podstavkov, L Pondrom, AV Popov, S Poprocki, K Potamianos, A Pranko, M Prewitt, D Price, N Prokopenko, F Prokoshin, F Ptohos, G Punzi, J Qian, A Quadt, B Quinn, A Rahaman, V Ramakrishnan, MS Rangel, K Ranjan, N Ranjan, PN Ratoff, I Razumov, I Redondo, P Renkel, P Renton, M Rescigno, T Riddick, F Rimondi, I Ripp-Baudot, L Ristori, F Rizatdinova, A Robson, T Rodriguez, E Rogers, S Rolli, M Rominsky, R Roser, A Ross, C Royon, P Rubinov, R Ruchti, F Ruffini, A Ruiz, J Russ, V Rusu, A Safonov, G Sajot, WK Sakumoto, Y Sakurai, P Salcido, A Sanchez-Hernandez, MP Sanders, L Santi, AS Santos, K Sato, G Savage, V Saveliev, A Savoy-Navarro, L Sawyer, T Scanlon, RD Schamberger, Y Scheglov, H Schellman, P Schlabach, S Schlobohm, A Schmidt, EE Schmidt, C Schwanenberger, T Schwarz, R Schwienhorst, L Scodellaro, A Scribano, F Scuri, S Seidel, Y Seiya, J Sekaric, A Semenov, H Severini, F Sforza, E Shabalina, SZ Shalhout, V Shary, S Shaw, AA Shchukin, T Shears, PF Shepard, M Shimojima, RK Shivpuri, M Shochet, I Shreyber-Tecker, V Simak, A Simonenko, P Sinervo, P Skubic, P Slattery, K Sliwa, D Smirnov, JR Smith, KJ Smith, FD Snider, GR Snow, J Snow, S Snyder, A Soha, S Soeldner-Rembold, H Song, L Sonnenschein, V Sorin, K Soustruznik, P Squillacioti, R St Denis, M Stancari, J Stark, O Stelzer-Chilton, B Stelzer, D Stentz, DA Stoyanova, M Strauss, J Strologas, GL Strycker, Y Sudo, A Sukhanov, I Suslov, L Suter, P Svoisky, M Takahashi, K Takemasa, Y Takeuchi, J Tang, M Tecchio, PK Teng, J Thom, J Thome, GA Thompson, E Thomson, M Titov, D Toback, S Tokar, VV Tokmenin, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, Y-T Tsai, K Tschann-Grimm, D Tsybychev, B Tuchming, C Tully, F Ukegawa, S Uozumi, L Uvarov, S Uvarov, S Uzunyan, R Van Kooten, WM van Leeuwen, N Varelas, A Varganov, EW Varnes, IA Vasilyev, F Vazquez, G Velev, C Vellidis, P Verdier, AY Verkheev, LS Vertogradov, M Verzocchi, M Vesterinen, M Vidal, I Vila, D Vilanova, R Vilar, J Vizan, M Vogel, P Vokac, G Volpi, P Wagner, RL Wagner, HD Wahl, T Wakisaka, R Wallny, SM Wang, MHLS Wang, R-J Wang, A Warburton, J Warchol, D Waters, G Watts, M Wayne, J Weichert, L Welty-Rieger, WCIII Wester, A White, D Whiteson, F Wick, D Wicke, AB Wicklund, E Wicklund, S Wilbur, HH Williams, MRJ Williams, GW Wilson, JS Wilson, P Wilson, BL Winer, P Wittich, M Wobisch, S Wolbers, H Wolfe, DR Wood, T Wright, X Wu, Z Wu, TR Wyatt, Y Xie, R Yamada, K Yamamoto, D Yamato, S Yang, T Yang, UK Yang, W-C Yang, YC Yang, W-M Yao, T Yasuda, YA Yatsunenko, W Ye, Z Ye, GP Yeh, K Yi, H Yin, K Yip, J Yoh, K Yorita, T Yoshida, SW Youn, GB Yu, I Yu, JM Yu, SS Yu, JC Yun, A Zanetti, Y Zeng, J Zennamo, T Zhao, TG Zhao, B Zhou, C Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic, S Zucchelli
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PLUME collaboration: Ultra-light ladders for linear collider vertex detector

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 650:1 (2011) 208-212

Authors:

A Nomerotski, O Bachynska, J Baudot, N Chon-Sen, G Claus, R De Masi, M Deveaux, W Dulinski, R Gauld, M Goffe, J Goldstein, IM Gregor, C Hu-Guo, M Imhoff, U Koetz, W Lau, C Muntz, C Santos, C Schrader, M Specht, J Stroth, M Winter, S Yang

Abstract:

The PLUME (Pixelated Ladder with Ultra-Low Material Embedding) Collaboration is developing ultra-light ladders for the vertex detector for a future linear collider. The double-sided ladder will integrate the sensors, readout infrastructure and mechanical supports with the aim of total material budget of 0.3% of radiation length. The requirement of as light as possible construction is driven by physics, in particular by measurements requiring determination of the quark charge sign. The first prototype ladders were prepared and tested in the beam. The alignment issues for the ladders will be tested within the AIDA (Advanced European Infrastructures for Detectors at Accelerators) EU FP7 project. © 2010 Elsevier B.V. All rights reserved.
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