Prof Morgan Wascko: Publications

Characterization of nuclear effects in muon-neutrino scattering on hydrocarbon with a measurement of final-state kinematics and correlations in charged-current pionless interactions at T2K

Physical Review D American Physical Society 98 (2018) 032003

Authors:

K Abe, J Amey, C Andreopoulos, L Anthony, M Antonova, S Aoki, A Ariga, Y Ashida, Y Azuma, S Ban, M Barbi, GJ Barker, Giles Barr, C Barry, M Batkiewicz, V Berardi, S Berkman, RM Berner, L Berns, S Bhadra, S Bienstock, A Blondel, S Bolognesi, S Bordoni, B Bourguille, SB Boyd, D Brailsford, A Bravar, C Bronner, MB Avanzini, J Calcutt, T Campbell, S Cao, SL Cartwright, Catanesi, A Cervera, A Chappell, C Checchia, D Cherdack, N Chikuma, G Christodoulou, J Coleman, G Collazuol, David Coplowe, A Cudd, A Dabrowska, G De Rosa, T Dealtry, PF Denner, Dennis

Abstract:

This paper reports measurements of final-state proton multiplicity, muon and proton kinematics, and their correlations in charged-current pionless neutrino interactions, measured by the T2K ND280 near detector in its plastic scintillator (C8H8) target. The data were taken between years 2010 and 2013, corresponding to approximately 6×1020 protons on target. Thanks to their exploration of the proton kinematics and of imbalances between the proton and muon kinematics, the results offer a novel probe of the nuclear-medium effects most pertinent to the (sub-)GeV neutrino-nucleus interactions that are used in accelerator-based long-baseline neutrino oscillation measurements. These 3 results are compared to many neutrino-nucleus interaction models which all fail to describe at least part of the observed phase space. In case of events without a proton above a detection threshold in the final state, a fully consistent implementation of the local Fermi gas model with multinucleon interactions gives the best description of the data. In the case of at least one proton in the final state the spectral function model agrees well with the data, most notably when measuring the kinematic imbalance between the muon and the proton in the plane transverse to the incoming neutrino. Within the models considered, only the existence of multinucleon interactions are able to describe the extracted cross-section within regions of high transverse kinematic imbalance. The effect of final-state interactions is also discussed.

Review of Particle Physics*

American Physical Society (APS) 98:3 (2018) 030001

Authors:

M Tanabashi, K Hagiwara, K Hikasa, K Nakamura, Y Sumino, F Takahashi, J Tanaka, K Agashe, G Aielli, C Amsler, M Antonelli, DM Asner, H Baer, Sw Banerjee, RM Barnett, T Basaglia, CW Bauer, JJ Beatty, VI Belousov, J Beringer, S Bethke, A Bettini, H Bichsel, O Biebel, KM Black, E Blucher, O Buchmuller, V Burkert, MA Bychkov, RN Cahn, M Carena, A Ceccucci, A Cerri, D Chakraborty, M-C Chen, RS Chivukula, G Cowan, O Dahl, G D’Ambrosio, T Damour, D de Florian, A de Gouvêa, T DeGrand, P de Jong, G Dissertori, BA Dobrescu, M D’Onofrio, M Doser, M Drees, HK Dreiner, DA Dwyer, P Eerola, S Eidelman, J Ellis, J Erler, VV Ezhela, W Fetscher, BD Fields, R Firestone, B Foster, A Freitas, H Gallagher, L Garren, H-J Gerber, G Gerbier, T Gershon, Y Gershtein, T Gherghetta, AA Godizov, M Goodman, C Grab, AV Gritsan, C Grojean, DE Groom, M Grünewald, A Gurtu, T Gutsche, HE Haber, C Hanhart, S Hashimoto, Y Hayato, KG Hayes, A Hebecker, S Heinemeyer, B Heltsley, JJ Hernández-Rey, J Hisano, A Höcker, J Holder, A Holtkamp, T Hyodo, KD Irwin, KF Johnson, M Kado, M Karliner, UF Katz, SR Klein, E Klempt, RV Kowalewski, F Krauss, M Kreps, B Krusche, Yu V Kuyanov, Y Kwon, O Lahav, J Laiho, J Lesgourgues, A Liddle, Z Ligeti, C-J Lin, C Lippmann, TM Liss, L Littenberg, KS Lugovsky, SB Lugovsky, A Lusiani, Y Makida, F Maltoni, T Mannel, AV Manohar, WJ Marciano, AD Martin, A Masoni, J Matthews, U-G Meißner, D Milstead, RE Mitchell, K Mönig, P Molaro, F Moortgat, M Moskovic, H Murayama, M Narain, P Nason, S Navas, M Neubert, P Nevski, Y Nir, KA Olive, S Pagan Griso, J Parsons, C Patrignani, JA Peacock, M Pennington, ST Petcov, VA Petrov, E Pianori, A Piepke, A Pomarol, A Quadt, J Rademacker, G Raffelt, BN Ratcliff, P Richardson, A Ringwald, S Roesler, S Rolli, A Romaniouk, LJ Rosenberg, JL Rosner, G Rybka, RA Ryutin, CT Sachrajda, Y Sakai, GP Salam, S Sarkar, F Sauli, O Schneider, K Scholberg, AJ Schwartz, D Scott, V Sharma, SR Sharpe, T Shutt, M Silari, T Sjöstrand, P Skands, T Skwarnicki, JG Smith, GF Smoot, S Spanier, H Spieler, C Spiering, A Stahl, SL Stone, T Sumiyoshi, MJ Syphers, K Terashi, J Terning, U Thoma, RS Thorne, L Tiator, M Titov, NP Tkachenko, NA Törnqvist, DR Tovey, G Valencia, R Van de Water, N Varelas, G Venanzoni, L Verde, MG Vincter, P Vogel, A Vogt, SP Wakely, W Walkowiak, CW Walter, D Wands, DR Ward, MO Wascko, G Weiglein, DH Weinberg, EJ Weinberg, M White, LR Wiencke, S Willocq, CG Wohl, J Womersley, CL Woody, RL Workman, W-M Yao, GP Zeller, OV Zenin, R-Y Zhu, S-L Zhu, F Zimmermann, PA Zyla, J Anderson, L Fuller, VS Lugovsky, P Schaffner

Measurement of inclusive double-differential νμ charged-current cross section with improved acceptance in the T2K off-axis near detector

Physical Review D American Physical Society 98:1 (2018) 012004

Authors:

K Abe, J Amey, C Andreopoulos, L Anthony, M Antonova, S Aoki, A Ariga, Y Ashida, Y Azuma, S Ban, M Barbi, GJ Barker, Giles Barr, C Barry, M Batkiewicz, V Berardi, S Berkman, RM Berner, S Bhadra, S Bienstock, A Blondel, S Bolognesi, S Bordoni, B Bourguille, SB Boyd, D Brailsford, A Bravar, C Bronner, MB Avanzini, J Calcutt, T Campbell, S Cao, SL Cartwright, A Cervera, A Chappell, C Checchia, D Cherdack, N Chikuma, G Christodoulou, J Coleman, G Collazuol, David Coplowe, A Cudd, A Dabrowska, G De Rosa, T Dealtry, PF Denner, C Densham

Abstract:

We report a measurement of the flux-integrated cross section for inclusive muon neutrino chargedcurrent interactions on carbon. The double-differential measurements are given as a function of the muon momentum and angle. Relative to our previous publication on this topic, these results have an increased angular acceptance and higher statistics. The data sample presented here corresponds to 5.7 × 1020 protons on target. The total flux-integrated cross section is measured to be ð6.950 0.662Þ × 10−39 cm2 nucleon−1 and is consistent with our simulation.

Search for CP violation in Neutrino and Antineutrino Oscillations by the T2K experiment with $2.2\times10^{21}$ protons on target

(2018)

Authors:

K Abe, R Akutsu, A Ali, J Amey, C Andreopoulos, L Anthony, M Antonova, S Aoki, A Ariga, Y Ashida, Y Azuma, S Ban, M Barbi, GJ Barker, G Barr, C Barry, M Batkiewicz, F Bench, V Berardi, S Berkman, RM Berner, L Berns, S Bhadra, S Bienstock, A Blondel, S Bolognesi, B Bourguille, SB Boyd, D Brailsford, A Bravar, C Bronner, M Buizza Avanzini, J Calcutt, T Campbell, S Cao, SL Cartwright, MG Catanesi, A Cervera, A Chappell, C Checchia, D Cherdack, N Chikuma, G Christodoulou, J Coleman, G Collazuol, D Coplowe, A Cudd, A Dabrowska, G De Rosa, T Dealtry, PF Denner, SR Dennis, C Densham, F Di Lodovico, N Dokania, S Dolan, O Drapier, KE Duffy, J Dumarchez, P Dunne, S Emery-Schrenk, A Ereditato, P Fernandez, T Feusels, AJ Finch, GA Fiorentini, G Fiorillo, C Francois, M Friend, Y Fujii, R Fujita, D Fukuda, Y Fukuda, K Gameil, C Giganti, F Gizzarelli, T Golan, M Gonin, DR Hadley, L Haegel, JT Haigh, P Hamacher-Baumann, D Hansen, J Harada, M Hartz, T Hasegawa, NC Hastings, T Hayashino, Y Hayato, A Hiramoto, M Hogan, J Holeczek, F Hosomi, AK Ichikawa, M Ikeda, J Imber, T Inoue, RA Intonti, T Ishida, T Ishii, M Ishitsuka, K Iwamoto, A Izmaylov, B Jamieson, M Jiang, S Johnson, P Jonsson, CK Jung, M Kabirnezhad, AC Kaboth, T Kajita, H Kakuno, J Kameda, D Karlen, T Katori, Y Kato, E Kearns, M Khabibullin, A Khotjantsev, H Kim, J Kim, S King, J Kisiel, A Knight, A Knox, T Kobayashi, L Koch, T Koga, PP Koller, A Konaka, LL Kormos, Y Koshio, K Kowalik, H Kubo, Y Kudenko, R Kurjata, T Kutter, M Kuze, L Labarga, J Lagoda, M Lamoureux, P Lasorak, M Laveder, M Lawe, M Licciardi, T Lindner, ZJ Liptak, RP Litchfield, X Li, A Longhin, JP Lopez, T Lou, L Ludovici, X Lu, L Magaletti, K Mahn, M Malek, S Manly, L Maret, AD Marino, JF Martin, P Martins, T Maruyama, T Matsubara, V Matveev, K Mavrokoridis, WY Ma, E Mazzucato, M McCarthy, N McCauley, KS McFarland, C McGrew, A Mefodiev, C Metelko, M Mezzetto, A Minamino, O Mineev, S Mine, A Missert, M Miura, S Moriyama, J Morrison, Th A Mueller, S Murphy, Y Nagai, T Nakadaira, M Nakahata, Y Nakajima, KG Nakamura, K Nakamura, KD Nakamura, Y Nakanishi, S Nakayama, T Nakaya, K Nakayoshi, C Nantais, C Nielsen, K Niewczas, K Nishikawa, Y Nishimura, TS Nonnenmacher, P Novella, J Nowak, HM O'Keeffe, L O'Sullivan, K Okumura, T Okusawa, W Oryszczak, SM Oser, RA Owen, Y Oyama, V Palladino, JL Palomino, V Paolone, P Paudyal, M Pavin, D Payne, L Pickering, C Pidcott, ES Pinzon Guerra, C Pistillo, B Popov, K Porwit, M Posiadala-Zezula, A Pritchard, B Quilain, T Radermacher, E Radicioni, PN Ratoff, E Reinherz-Aronis, C Riccio, E Rondio, B Rossi, S Roth, A Rubbia, AC Ruggeri, A Rychter, K Sakashita, F Sánchez, S Sasaki, E Scantamburlo, K Scholberg, J Schwehr, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, R Shah, A Shaikhiev, F Shaker, D Shaw, M Shiozawa, A Smirnov, M Smy, JT Sobczyk, H Sobel, Y Sonoda, J Steinmann, T Stewart, P Stowell, Y Suda, S Suvorov, A Suzuki, SY Suzuki, Y Suzuki, AA Sztuc, R Tacik, M Tada, A Takeda, Y Takeuchi, R Tamura, HK Tanaka, HA Tanaka, T Thakore, LF Thompson, W Toki, C Touramanis, KM Tsui, T Tsukamoto, M Tzanov, Y Uchida, W Uno, M Vagins, Z Vallari, G Vasseur, C Vilela, T Vladisavljevic, VV Volkov, T Wachala, J Walker, Y Wang, D Wark, MO Wascko, A Weber, R Wendell, MJ Wilking, C Wilkinson, JR Wilson, RJ Wilson, C Wret, Y Yamada, K Yamamoto, S Yamasu, C Yanagisawa, G Yang, T Yano, K Yasutome, S Yen, N Yershov, M Yokoyama, T Yoshida, M Yu, A Zalewska, J Zalipska, K Zaremba, G Zarnecki, M Ziembicki, ED Zimmerman, M Zito, S Zsoldos, A Zykova

Physics potentials with the second Hyper-Kamiokande detector in Korea

Progress of Theoretical and Experimental Physics 91̽�� University Press 2018:6 (2018)

Authors:

K Abe, K Abe, SH Ahn, H Aihara, A Aimi, R Akutsu, C Andreopoulos, I Anghel, LHV Anthony, M Antonova, Y Ashida, V Aushev, M Barbi, GJ Barker, Giles Barr, P Beltrame, V Berardi, M Bergevin, S Berkman, L Berns, T Berry, S Bhadra, FDM Blaszczyk, A Blondel, S Bolognesi

Abstract:

Hyper-Kamiokande consists of two identical water-Cherenkov detectors of total 520~kt with the first one in Japan at 295~km from the J-PARC neutrino beam with 2.5$^{\textrm{o}}$ Off-Axis Angles (OAAs), and the second one possibly in Korea in a later stage. Having the second detector in Korea would benefit almost all areas of neutrino oscillation physics mainly due to longer baselines. There are several candidate sites in Korea with baselines of 1,000$\sim$1,300~km and OAAs of 1$^{\textrm{o}}$$\sim$3$^{\textrm{o}}$. We conducted sensitivity studies on neutrino oscillation physics for a second detector, either in Japan (JD $\times$ 2) or Korea (JD + KD) and compared the results with a single detector in Japan. Leptonic CP violation sensitivity is improved especially when the CP is non-maximally violated. The larger matter effect at Korean candidate sites significantly enhances sensitivities to non-standard interactions of neutrinos and mass ordering determination. Current studies indicate the best sensitivity is obtained at Mt. Bisul (1,088~km baseline, $1.3^\circ$ OAA). Thanks to a larger (1,000~m) overburden than the first detector site, clear improvements to sensitivities for solar and supernova relic neutrino searches are expected.

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