Accelerator Neutrinos

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Measurement of the Longitudinal Diffusion of Ionization Electrons in the MicroBooNE Detector

(2021)

Authors:

P Abratenko, R An, J Anthony, J Asaadi, A Ashkenazi, S Balasubramanian, B Baller, C Barnes, G Barr, V Basque, L Bathe-Peters, O Benevides Rodrigues, S Berkman, A Bhanderi, A Bhat, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, I Caro Terrazas, R Castillo Fernandez, F Cavanna, G Cerati, Y Chen, E Church, D Cianci, JM Conrad, M Convery, L Cooper-Troendle, JI Crespo-Anadon, M Del Tutto, SR Dennis, D Devitt, R Diurba, R Dorrill, K Duffy, S Dytman, B Eberly, A Ereditato, JJ Evans, R Fine, GA Fiorentini Aguirre, RS Fitzpatrick, BT Fleming, N Foppiani, D Franco, AP Furmanski, D Garcia-Gamez, S Gardiner, G Ge, S Gollapinni, O Goodwin, E Gramellini, P Green, H Greenlee, W Gu, R Guenette, P Guzowski, L Hagaman, E Hall, P Hamilton, O Hen, GA Horton-Smith, A Hourlier, R Itay, C James, X Ji, L Jiang, JH Jo, RA Johnson, YJ Jwa, N Kamp, N Kaneshige, G Karagiorgi, W Ketchum, M Kirby, T Kobilarcik, I Kreslo, R LaZur, I Lepetic, K Li, Y Li, K Lin, A Lister, BR Littlejohn, WC Louis, X Luo, K Manivannan, C Mariani, D Marsden, J Marshall, DA Martinez Caicedo, K Mason, A Mastbaum, N McConkey, V Meddage, T Mettler, K Miller, J Mills, K Mistry, T Mohayai, A Mogan, J Moon, M Mooney, AF Moor, CD Moore, L Mora Lepin, J Mousseau, M Murphy, D Naples, A Navrer-Agasson, RK Neely, J Nowak, M Nunes, O Palamara, V Paolone, A Papadopoulou, V Papavassiliou, SF Pate, A Paudel, Z Pavlovic, E Piasetzky, I Ponce-Pinto, S Prince, X Qian, JL Raaf, V Radeka, A Rafique, M Reggiani-Guzzo, L Ren, LCJ Rice, L Rochester, J Rodriguez Rondon, HE Rogers, M Rosenberg, M Ross-Lonergan, G Scanavini, DW Schmitz, A Schukraft, W Seligman, MH Shaevitz, R Sharankova, J Sinclair, A Smith, EL Snider, M Soderberg, S Soldner-Rembold, P Spentzouris, J Spitz, M Stancari, J St John, T Strauss, K Sutton, S Sword-Fehlberg, AM Szelc, N Tagg, W Tang, K Terao, C Thorpe, D Totani, M Toups, Y-T Tsai, MA Uchida, T Usher, W Van De Pontseele, B Viren, M Weber, H Wei, Z Williams, S Wolbers, T Wongjirad, M Wospakrik, N Wright, W Wu, E Yandel, T Yang, G Yarbrough, LE Yates, GP Zeller, J Zennamo, C Zhang
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Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton–proton collisions at $$\sqrt{s}$$ = 13 TeV with the ATLAS detector

The European Physical Journal C SpringerOpen 81:4 (2021) 313

Authors:

G Aad, B Abbott, DC Abbott, A Abed Abud, K Abeling, DK Abhayasinghe, SH Abidi, OS AbouZeid, NL Abraham, H Abramowicz, H Abreu, Y Abulaiti, BS Acharya, B Achkar, L Adam, C Adam Bourdarios, L Adamczyk, L Adamek, J Adelman, A Adiguzel, S Adorni, T Adye, AA Affolder, Y Afik, C Agapopoulou

Abstract:

A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. This is the first leptoquark search using ATLAS data to investigate top-philic cross-generational couplings that could provide explanations for recently observed anomalies in B meson decays. This analysis targets high leptoquark masses which cause the decay products of each resultant top quark to be contained within a single high-pT large-radius jet. The full Run 2 dataset is exploited, consisting of 139 fb−1 of data collected from proton–proton collisions at s√=13 TeV from 2015 to 2018 with the ATLAS detector at the CERN Large Hadron Collider. In the absence of any significant deviation from the background expectation, lower limits on the leptoquark masses are set at 1480 GeV and 1470 GeV for the electron and muon channel, respectively.publishedVersio
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Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm

(2021)

Authors:

B Abi, T Albahri, S Al-Kilani, D Allspach, LP Alonzi, A Anastasi, A Anisenkov, F Azfar, K Badgley, S Baeßler, I Bailey, VA Baranov, E Barlas-Yucel, T Barrett, E Barzi, A Basti, F Bedeschi, A Behnke, M Berz, M Bhattacharya, HP Binney, R Bjorkquist, P Bloom, J Bono, E Bottalico, T Bowcock, D Boyden, G Cantatore, RM Carey, J Carroll, BCK Casey, D Cauz, S Ceravolo, R Chakraborty, SP Chang, A Chapelain, S Chappa, S Charity, R Chislett, J Choi, Z Chu, TE Chupp, ME Convery, A Conway, G Corradi, S Corrodi, L Cotrozzi, JD Crnkovic, S Dabagov, PM De Lurgio, PT Debevec, S Di Falco, P Di Meo, G Di Sciascio, R Di Stefano, B Drendel, A Driutti, VN Duginov, M Eads, N Eggert, A Epps, J Esquivel, M Farooq, R Fatemi, C Ferrari, M Fertl, A Fiedler, AT Fienberg, A Fioretti, D Flay, SB Foster, H Friedsam, E Frlež, NS Froemming, J Fry, C Fu, C Gabbanini, MD Galati, S Ganguly, A Garcia, DE Gastler, J George, LK Gibbons, A Gioiosa, KL Giovanetti, P Girotti, W Gohn, T Gorringe, J Grange, S Grant, F Gray, S Haciomeroglu, D Hahn, T Halewood-Leagas, D Hampai, F Han, E Hazen, J Hempstead, S Henry, AT Herrod, DW Hertzog, G Hesketh, A Hibbert, Z Hodge, JL Holzbauer, KW Hong, R Hong, M Iacovacci, M Incagli, C Johnstone, JA Johnstone, P Kammel, M Kargiantoulakis, M Karuza, J Kaspar, D Kawall, L Kelton, A Keshavarzi, D Kessler, KS Khaw, Z Khechadoorian, NV Khomutov, B Kiburg, M Kiburg, O Kim, SC Kim, YI Kim, B King, N Kinnaird, M Korostelev, I Kourbanis, E Kraegeloh, VA Krylov, A Kuchibhotla, NA Kuchinskiy, KR Labe, J LaBounty, M Lancaster, MJ Lee, S Lee, S Leo, B Li, D Li, L Li, I Logashenko, A Lorente Campos, A Lucà, G Lukicov, G Luo, A Lusiani, AL Lyon, B MacCoy, R Madrak, K Makino, F Marignetti, S Mastroianni, S Maxfield, M McEvoy, W Merritt, AA Mikhailichenko, JP Miller, S Miozzi, JP Morgan, WM Morse, J Mott, E Motuk, A Nath, D Newton, H Nguyen, M Oberling, R Osofsky, J-F Ostiguy, S Park, G Pauletta, GM Piacentino, RN Pilato, KT Pitts, B Plaster, D Počanić, N Pohlman, CC Polly, M Popovic, J Price, B Quinn, N Raha, S Ramachandran, E Ramberg, NT Rider, JL Ritchie, BL Roberts, DL Rubin, L Santi, D Sathyan, H Schellman, C Schlesier, A Schreckenberger, YK Semertzidis, YM Shatunov, D Shemyakin, M Shenk, D Sim, MW Smith, A Smith, AK Soha, M Sorbara, D Stöckinger, J Stapleton, D Still, C Stoughton, D Stratakis, C Strohman, T Stuttard, HE Swanson, G Sweetmore, DA Sweigart, MJ Syphers, DA Tarazona, T Teubner, AE Tewsley-Booth, K Thomson, V Tishchenko, NH Tran, W Turner, E Valetov, D Vasilkova, G Venanzoni, VP Volnykh, T Walton, M Warren, A Weisskopf, L Welty-Rieger, M Whitley, P Winter, A Wolski, M Wormald, W Wu, C Yoshikawa
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Measurement of the positive muon anomalous magnetic moment to 0.46 ppm

Physical Review Letters American Physical Society 126 (2021) 141801

Authors:

B Abi, Farrukh Azfar, S Henry

Abstract:

We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g−2 Experiment for the positive muon magnetic anomaly aμ≡(gμ−2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ωa between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ˜ω′p in a spherical water sample at 34.7 °C. The ratio ωa/˜ω′p, together with known fundamental constants, determines aμ(FNAL)=116592040(54)×10−11 (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ+ and μ−, the new experimental average of aμ(Exp)=116592061(41)×10−11 (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.

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Measurement of the atmospheric muon rate with the MicroBooNE Liquid Argon TPC

Journal of Instrumentation IOP Publishing 16:04 (2021) p04004

Authors:

P Abratenko, M Alrashed, R An, J Anthony, J Asaadi, A Ashkenazi, S Balasubramanian, B Baller, C Barnes, G Barr, V Basque, M Bass, L Bathe-Peters, O Benevides Rodrigues, S Berkman, A Bhanderi, A Bhat, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, I Caro Terrazas, R Castillo Fernandez, F Cavanna, G Cerati, Y Chen, E Church, D Cianci, JM Conrad, M Convery, L Cooper-Troendle, JI Crespo-Anadón, M Del Tutto, D Devitt, R Diurba, L Domine, R Dorrill, K Duffy, S Dytman, B Eberly, A Ereditato, L Escudero Sanchez, JJ Evans, GA Fiorentini Aguirre, RS Fitzpatrick, BT Fleming, N Foppiani, D Franco, AP Furmanski, D Garcia-Gamez, S Gardiner, G Ge, S Gollapinni, O Goodwin, E Gramellini, P Green, H Greenlee, W Gu, R Guenette, P Guzowski, E Hall, P Hamilton, O Hen, GA Horton-Smith, A Hourlier, E-C Huang, R Itay, C James, J Jan de Vries, X Ji, L Jiang, JH Jo, RA Johnson, Y-J Jwa, N Kamp, G Karagiorgi, W Ketchum, B Kirby, M Kirby, T Kobilarcik, I Kreslo, R LaZur, I Lepetic, K Li, Y Li, BR Littlejohn, D Lorca, WC Louis, X Luo, A Marchionni, S Marcocci, C Mariani, D Marsden, J Marshall, J Martin-Albo, DA Martinez Caicedo, K Mason, A Mastbaum, N McConkey, V Meddage, T Mettler, K Miller, J Mills, K Mistry, A Mogan, T Mohayai, J Moon, M Mooney, AF Moor, CD Moore, J Mousseau, M Murphy, D Naples, A Navrer-Agasson, RK Neely, P Nienaber, J Nowak, O Palamara, V Paolone, A Papadopoulou, V Papavassiliou, SF Pate, A Paudel, Z Pavlovic, E Piasetzky, ID Ponce-Pinto, D Porzio, S Prince, X Qian, JL Raaf, V Radeka, A Rafique, M Reggiani-Guzzo, L Ren, L Rochester, J Rodriguez Rondon, HE Rogers, M Rosenberg, M Ross-Lonergan, B Russell, G Scanavini, DW Schmitz, A Schukraft, MH Shaevitz, R Sharankova, J Sinclair, A Smith, EL Snider, M Soderberg, S Söldner-Rembold, SR Soleti, P Spentzouris, J Spitz, M Stancari, J St. John, T Strauss, K Sutton, S Sword-Fehlberg, AM Szelc, N Tagg, W Tang, K Terao, C Thorpe, M Toups, Y-T Tsai, S Tufanli, MA Uchida, T Usher, W Van De Pontseele, B Viren, M Weber, H Wei, Z Williams, S Wolbers, T Wongjirad, M Wospakrik, W Wu, T Yang, G Yarbrough, LE Yates, GP Zeller, J Zennamo, C Zhang
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