- Main
Search for heavy neutral leptons decaying into muon-pion pairs in the MicroBooNE detector
- Abratenko, P;
- Alrashed, M;
- An, R;
- Anthony, J;
- Asaadi, J;
- Ashkenazi, A;
- Balasubramanian, S;
- Baller, B;
- Barnes, C;
- Barr, G;
- Basque, V;
- Berkman, S;
- Bhanderi, A;
- Bhat, A;
- Bishai, M;
- Blake, A;
- Bolton, T;
- Camilleri, L;
- Caratelli, D;
- Terrazas, I Caro;
- Fernandez, R Castillo;
- Cavanna, F;
- Cerati, G;
- Chen, Y;
- Church, E;
- Cianci, D;
- Cohen, EO;
- Conrad, JM;
- Convery, M;
- Cooper-Troendle, L;
- Crespo-Anadón, JI;
- Del Tutto, M;
- Devitt, A;
- Domine, L;
- Duffy, K;
- Dytman, S;
- Eberly, B;
- Ereditato, A;
- Sanchez, L Escudero;
- Evans, JJ;
- Fitzpatrick, RS;
- Fleming, BT;
- Foppiani, N;
- Franco, D;
- Furmanski, AP;
- Garcia-Gamez, D;
- Gardiner, S;
- Genty, V;
- Goeldi, D;
- Gollapinni, S;
- Goodwin, O;
- Gramellini, E;
- Green, P;
- Greenlee, H;
- Gu, L;
- Gu, W;
- Guenette, R;
- Guzowski, P;
- Hamilton, P;
- Hen, O;
- Hill, C;
- Horton-Smith, GA;
- Hourlier, A;
- Huang, E-C;
- Itay, R;
- James, C;
- de Vries, J Jan;
- Ji, X;
- Jiang, L;
- Jo, JH;
- Johnson, RA;
- Joshi, J;
- Jwa, Y-J;
- Karagiorgi, G;
- Ketchum, W;
- Kirby, B;
- Kirby, M;
- Kobilarcik, T;
- Kreslo, I;
- LaZur, R;
- Lepetic, I;
- Li, Y;
- Lister, A;
- Littlejohn, BR;
- Lockwitz, S;
- Lorca, D;
- Louis, WC;
- Luethi, M;
- Lundberg, B;
- Luo, X;
- Marchionni, A;
- Marcocci, S;
- Mariani, C;
- Marshall, J;
- Martin-Albo, J;
- Caicedo, DA Martinez;
- Mason, K;
- Mastbaum, A;
- McConkey, N;
- Meddage, V;
- Mettler, T;
- Miller, K;
- Mills, J;
- Mistry, K;
- Mogan, A;
- Mohayai, T;
- Moon, J;
- Mooney, M;
- Moore, CD;
- Mousseau, J;
- Murrells, R;
- Naples, D;
- Neely, RK;
- Nienaber, P;
- Nowak, J;
- Palamara, O;
- Pandey, V;
- Paolone, V;
- Papadopoulou, A;
- Papavassiliou, V;
- Pate, SF;
- Paudel, A;
- Pavlovic, Z;
- Piasetzky, E;
- Porzio, D;
- Prince, S;
- Pulliam, G;
- Qian, X;
- Raaf, JL;
- Radeka, V;
- Rafique, A;
- Ren, L;
- Rochester, L;
- Rogers, HE;
- Ross-Lonergan, M;
- von Rohr, C Rudolf;
- Russell, B;
- Scanavini, G;
- Schmitz, DW;
- Schukraft, A;
- Seligman, W;
- Shaevitz, MH;
- Sharankova, R;
- Sinclair, J;
- Smith, A;
- Snider, EL;
- Soderberg, M;
- Söldner-Rembold, S;
- Soleti, SR;
- Spentzouris, P;
- Spitz, J;
- Stancari, M;
- St. John, J;
- Strauss, T;
- Sutton, K;
- Sword-Fehlberg, S;
- Szelc, AM;
- Tagg, N;
- Tang, W;
- Terao, K;
- Thornton, RT;
- Toups, M;
- Tsai, Y-T;
- Tufanli, S;
- Uchida, MA;
- Usher, T;
- Van De Pontseele, W;
- Van de Water, RG;
- Viren, B;
- Weber, M;
- Wei, H;
- Wickremasinghe, DA;
- Williams, Z;
- Wolbers, S;
- Wongjirad, T;
- Woodruff, K;
- Wospakrik, M;
- Wu, W;
- Yang, T;
- Yarbrough, G;
- Yates, LE;
- Zeller, GP;
- Zennamo, J;
- Zhang, C
- et al.
Published Web Location
https://doi.org/10.1103/physrevd.101.052001Abstract
We present upper limits on the production of heavy neutral leptons (HNLs) decaying to μπ pairs using data collected with the MicroBooNE liquid-argon time projection chamber (TPC) operating at Fermilab. This search is the first of its kind performed in a liquid-argon TPC. We use data collected in 2017 and 2018 corresponding to an exposure of 2.0×1020 protons on target from the Fermilab Booster Neutrino Beam, which produces mainly muon neutrinos with an average energy of ≈800 MeV. HNLs with higher mass are expected to have a longer time of flight to the liquid-argon TPC than Standard Model neutrinos. The data are therefore recorded with a dedicated trigger configured to detect HNL decays that occur after the neutrino spill reaches the detector. We set upper limits at the 90% confidence level on the element |Uμ4|2 of the extended PMNS mixing matrix in the range |Uμ4|2<(6.6-0.9)×10-7 for Dirac HNLs and |Uμ4|2<(4.7-0.7)×10-7 for Majorana HNLs, assuming HNL masses between 260 and 385 MeV and |Ue4|2=|Uτ4|2=0.
Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.