Development of an analysis to probe the neutrino mass ordering with atmospheric neutrinos using three years of IceCube DeepCore data: IceCube Collaboration
European Physical Journal C 80:1 (2020)
Authors:
MG Aartsen, M Ackermann, J Adams, JA Aguilar, M Ahlers, M Ahrens, C Alispach, K Andeen, T Anderson, I Ansseau, G Anton, C Argüelles, J Auffenberg, S Axani, P Backes, H Bagherpour, X Bai, A Barbano, SW Barwick, V Baum, R Bay, JJ Beatty, KH Becker, JB Tjus, S BenZvi, D Berley, E Bernardini, DZ Besson, G Binder, D Bindig, E Blaufuss, S Blot, C Bohm, M Börner, S Böser, O Botner, E Bourbeau, J Bourbeau, F Bradascio, J Braun, HP Bretz, S Bron, J Brostean-Kaiser, A Burgman, RS Busse, T Carver, C Chen, E Cheung, D Chirkin, K Clark, L Classen, GH Collin, JM Conrad, P Coppin, P Correa, DF Cowen, R Cross, P Dave, JPAM de André, C De Clercq, JJ DeLaunay, H Dembinski, K Deoskar, S De Ridder, P Desiati, KD de Vries, G de Wasseige, M de With, T DeYoung, A Diaz, JC Díaz-Vélez, H Dujmovic, M Dunkman, E Dvorak, B Eberhardt, T Ehrhardt, B Eichmann, P Eller, JJ Evans, PA Evenson, S Fahey, AR Fazely, J Felde, K Filimonov, C Finley, A Franckowiak, E Friedman, A Fritz, TK Gaisser, J Gallagher, E Ganster, S Garrappa, L Gerhardt, K Ghorbani, T Glauch, T Glüsenkamp, A Goldschmidt, JG Gonzalez, D Grant, Z GriffithAbstract:
© 2020, The Author(s). The Neutrino Mass Ordering (NMO) remains one of the outstanding questions in the field of neutrino physics. One strategy to measure the NMO is to observe matter effects in the oscillation pattern of atmospheric neutrinos above ∼1GeV, as proposed for several next-generation neutrino experiments. Moreover, the existing IceCube DeepCore detector can already explore this type of measurement. We present the development and application of two independent analyses to search for the signature of the NMO with three years of DeepCore data. These analyses include a full treatment of systematic uncertainties and a statistically-rigorous method to determine the significance for the NMO from a fit to the data. Both analyses show that the dataset is fully compatible with both mass orderings. For the more sensitive analysis, we observe a preference for normal ordering with a p-value of pIO= 15.3 % and CL s= 53.3 % for the inverted ordering hypothesis, while the experimental results from both analyses are consistent within their uncertainties. Since the result is independent of the value of δCP and obtained from energies Eν≳5GeV, it is complementary to recent results from long-baseline experiments. These analyses set the groundwork for the future of this measurement with more capable detectors, such as the IceCube Upgrade and the proposed PINGU detector.Search for Magnetic Monopoles and Stable High-Electric-Charge Objects in 13 Tev Proton-Proton Collisions with the ATLAS Detector.
Physical review letters 124:3 (2020) 031802
Authors:
G Aad, B Abbott, DC Abbott, O Abdinov, A Abed Abud, K Abeling, DK Abhayasinghe, SH Abidi, OS AbouZeid, NL Abraham, H Abramowicz, H Abreu, Y Abulaiti, BS Acharya, B Achkar, S Adachi, L Adam, C Adam Bourdarios, L Adamczyk, L Adamek, J Adelman, M Adersberger, A Adiguzel, S Adorni, T Adye, AA Affolder, Y Afik, C Agapopoulou, MN Agaras, A Aggarwal, C Agheorghiesei, JA Aguilar-Saavedra, F Ahmadov, WS Ahmed, X Ai, G Aielli, S Akatsuka, TPA Åkesson, E Akilli, AV Akimov, K Al Khoury, GL Alberghi, J Albert, MJ Alconada Verzini, S Alderweireldt, M Aleksa, IN Aleksandrov, C Alexa, D Alexandre, T Alexopoulos, A Alfonsi, M Alhroob, B Ali, G Alimonti, J Alison, SP Alkire, C Allaire, BMM Allbrooke, BW Allen, PP Allport, A Aloisio, A Alonso, F Alonso, C Alpigiani, AA Alshehri, M Alvarez Estevez, D Álvarez Piqueras, MG Alviggi, Y Amaral Coutinho, A Ambler, L Ambroz, C Amelung, D Amidei, SP Amor Dos Santos, S Amoroso, CS Amrouche, F An, C Anastopoulos, N Andari, T Andeen, CF Anders, JK Anders, A Andreazza, V Andrei, CR Anelli, S Angelidakis, A Angerami, AV Anisenkov, A Annovi, C Antel, MT Anthony, M Antonelli, DJA Antrim, F Anulli, M Aoki, JA Aparisi Pozo, L Aperio Bella, G Arabidze, JP Araque, V Araujo Ferraz, R Araujo Pereira, C Arcangeletti, ATH Arce, FA Arduh, J-F Arguin, S Argyropoulos, J-H Arling, AJ Armbruster, LJ Armitage, A Armstrong, O Arnaez, H Arnold, A Artamonov, G Artoni, S Artz, S Asai, N Asbah, EM Asimakopoulou, L Asquith, K Assamagan, R Astalos, RJ Atkin, M Atkinson, NB Atlay, H Atmani, K Augsten, G Avolio, R Avramidou, MK Ayoub, AM Azoulay, G Azuelos, MJ Baca, H Bachacou, K Bachas, M Backes, F Backman, P Bagnaia, M Bahmani, H Bahrasemani, AJ Bailey, VR Bailey, JT Baines, M Bajic, C Bakalis, OK Baker, PJ Bakker, D Bakshi Gupta, S Balaji, EM Baldin, P Balek, F Balli, WK Balunas, J Balz, E Banas, A Bandyopadhyay, Sw Banerjee, AAE Bannoura, L Barak, WM Barbe, EL Barberio, D Barberis, M Barbero, T Barillari, M-S Barisits, J Barkeloo, T Barklow, R Barnea, SL Barnes, BM Barnett, RM Barnett, Z Barnovska-Blenessy, A Baroncelli, G Barone, AJ Barr, L Barranco Navarro, F Barreiro, J Barreiro Guimarães da Costa, S Barsov, R Bartoldus, G Bartolini, AE Barton, P Bartos, A Basalaev, A Bassalat, RL Bates, SJ Batista, S Batlamous, JR Batley, B Batool, M Battaglia, M Bauce, F Bauer, KT Bauer, HS Bawa, JB Beacham, T Beau, PH Beauchemin, F Becherer, P Bechtle, HC Beck, HP Beck, K Becker, M Becker, C Becot, A Beddall, AJ Beddall, VA Bednyakov, M Bedognetti, CP Bee, TA Beermann, M Begalli, M Begel, A Behera, JK Behr, F Beisiegel, AS Bell, G Bella, L Bellagamba, A Bellerive, P Bellos, K Beloborodov, K Belotskiy, NL Belyaev, D Benchekroun, N Benekos, Y Benhammou, DP Benjamin, M Benoit, JR Bensinger, S Bentvelsen, L Beresford, M Beretta, D Berge, E Bergeaas Kuutmann, N Berger, B Bergmann, LJ Bergsten, J Beringer, S Berlendis, NR Bernard, G Bernardi, C Bernius, T Berry, P Berta, C Bertella, IA Bertram, GJ Besjes, O Bessidskaia Bylund, N Besson, A Bethani, S Bethke, A Betti, AJ Bevan, J Beyer, R Bi, RM Bianchi, O Biebel, D Biedermann, R Bielski, K Bierwagen, NV Biesuz, M Biglietti, TRV Billoud, M Bindi, A Bingul, C Bini, S Biondi, M Birman, T Bisanz, JP Biswal, A Bitadze, C Bittrich, K Bjørke, KM Black, T Blazek, I Bloch, C Blocker, A Blue, U Blumenschein, GJ Bobbink, VS Bobrovnikov, SS Bocchetta, A Bocci, D Boerner, D Bogavac, AG Bogdanchikov, C Bohm, V Boisvert, P Bokan, T Bold, AS Boldyrev, AE Bolz, M Bomben, M Bona, JS Bonilla, M Boonekamp, HM Borecka-Bielska, A Borisov, G Borissov, J Bortfeldt, D Bortoletto, V Bortolotto, D Boscherini, M Bosman, JD Bossio Sola, K Bouaouda, J Boudreau, EV Bouhova-Thacker, D Boumediene, SK Boutle, A Boveia, J Boyd, D Boye, IR Boyko, AJ Bozson, J Bracinik, N Brahimi, G Brandt, O Brandt, F Braren, U Bratzler, B Brau, JE Brau, WD Breaden Madden, K Brendlinger, L Brenner, R Brenner, S Bressler, B Brickwedde, DL Briglin, D Britton, D Britzger, I Brock, R Brock, G Brooijmans, WK Brooks, E Brost, JH Broughton, PA Bruckman de Renstrom, D Bruncko, A Bruni, G Bruni, LS Bruni, S Bruno, BH Brunt, M Bruschi, N Bruscino, P Bryant, L Bryngemark, T Buanes, Q Buat, P Buchholz, AG Buckley, IA Budagov, MK Bugge, F Bührer, O Bulekov, TJ Burch, S Burdin, CD Burgard, AM Burger, B Burghgrave, K Burka, JTP Burr, JC Burzynski, V Büscher, E Buschmann, PJ Bussey, JM Butler, CM Buttar, JM Butterworth, P Butti, W Buttinger, A Buzatu, AR Buzykaev, G Cabras, S Cabrera Urbán, D Caforio, H Cai, VMM Cairo, O Cakir, N Calace, P Calafiura, A Calandri, G Calderini, P Calfayan, G Callea, LP Caloba, S Calvente Lopez, D Calvet, S Calvet, TP Calvet, M Calvetti, R Camacho Toro, S Camarda, D Camarero Munoz, P Camarri, D Cameron, R Caminal Armadans, C Camincher, S Campana, M Campanelli, A Camplani, A Campoverde, V Canale, A Canesse, M Cano Bret, J Cantero, T Cao, Y Cao, MDM Capeans Garrido, M Capua, R Cardarelli, FC Cardillo, G Carducci, I Carli, T Carli, G Carlino, BT Carlson, L Carminati, RMD Carney, S Caron, E Carquin, S 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Wanotayaroj, A Warburton, CP Ward, DR Wardrope, N Warrack, A Washbrook, AT Watson, MF Watson, G Watts, BM Waugh, AF Webb, S Webb, C Weber, MS Weber, SA Weber, SM Weber, AR Weidberg, J Weingarten, M Weirich, C Weiser, PS Wells, T Wenaus, T Wengler, S Wenig, N Wermes, MD Werner, M Wessels, TD Weston, K Whalen, NL Whallon, AM Wharton, AS White, A White, MJ White, D Whiteson, BW Whitmore, FJ Wickens, W Wiedenmann, M Wielers, N Wieseotte, C Wiglesworth, LAM Wiik-Fuchs, F Wilk, HG Wilkens, LJ Wilkins, HH Williams, S Williams, C Willis, S Willocq, JA Wilson, I Wingerter-Seez, E Winkels, F Winklmeier, OJ Winston, BT Winter, M Wittgen, M Wobisch, A Wolf, TMH Wolf, R Wolff, RW Wölker, J Wollrath, MW Wolter, H Wolters, VWS Wong, NL Woods, SD Worm, BK Wosiek, KW Woźniak, K Wraight, SL Wu, X Wu, Y Wu, TR Wyatt, BM Wynne, S Xella, Z Xi, L Xia, D Xu, H Xu, L Xu, T Xu, W Xu, Z Xu, Z Xu, B Yabsley, S Yacoob, K Yajima, DP Yallup, D Yamaguchi, Y Yamaguchi, A Yamamoto, T Yamanaka, F Yamane, M Yamatani, T Yamazaki, Y Yamazaki, Z Yan, HJ Yang, HT Yang, S Yang, X Yang, Y Yang, W-M Yao, YC Yap, Y Yasu, E Yatsenko, J Ye, S Ye, I Yeletskikh, MR Yexley, E Yigitbasi, K Yorita, K Yoshihara, CJS Young, C Young, J Yu, R Yuan, X Yue, SPY Yuen, B Zabinski, G Zacharis, E Zaffaroni, J Zahreddine, AM Zaitsev, T Zakareishvili, N Zakharchuk, S Zambito, D Zanzi, DR Zaripovas, SV Zeißner, C Zeitnitz, G Zemaityte, JC Zeng, O Zenin, D Zerwas, M Zgubič, DF Zhang, F Zhang, G Zhang, G Zhang, H Zhang, J Zhang, L Zhang, L Zhang, M Zhang, R Zhang, R Zhang, X Zhang, Y Zhang, Z Zhang, Z Zhang, P Zhao, Y Zhao, Z Zhao, A Zhemchugov, Z Zheng, D Zhong, B Zhou, C Zhou, MS Zhou, M Zhou, N Zhou, Y Zhou, CG Zhu, HL Zhu, H Zhu, J Zhu, Y Zhu, X Zhuang, K Zhukov, V Zhulanov, D Zieminska, NI Zimine, S Zimmermann, Z Zinonos, M Ziolkowski, G Zobernig, A Zoccoli, K Zoch, TG Zorbas, R Zou, L Zwalinski, ATLAS CollaborationAbstract:
A search for magnetic monopoles and high-electric-charge objects is presented using 34.4 fb^{-1} of 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015 and 2016. The considered signature is based upon high ionization in the transition radiation tracker of the inner detector associated with a pencil-shape energy deposit in the electromagnetic calorimeter. The data were collected by a dedicated trigger based on the tracker high-threshold hit capability. The results are interpreted in models of Drell-Yan pair production of stable particles with two spin hypotheses (0 and 1/2) and masses ranging from 200 to 4000 GeV. The search improves by approximately a factor of 5 the constraints on the direct production of magnetic monopoles carrying one or two Dirac magnetic charges and stable objects with electric charge in the range 20≤|z|≤60 and extends the charge range to 60<|z|≤100.A response to Rubin & Heitlauf: "Is the expansion of the universe accelerating? All signs still point to yes"
(2019)
Authors:
J Colin, R Mohayaee, M Rameez, Subir SARKARAbstract:
We have shown (Colin et al. 2019) that the acceleration of the Hubble expansion rate inferred from Type Ia supernovae is essentially a dipole with 3.9$\sigma$ significance, approximately aligned with the CMB dipole, while its monopole component which may be interpreted as due to a Cosmological Constant (or more generally dark energy) is consistent with zero at 1.4$\sigma$. This is challenged by Rubin & Heitlauf (2019) who assert that we incorrectly assumed the supernova light-curve parameters to be independent of redshift, and erred further in considering their measured redshifts (in the heliocentric frame) rather than transforming them to the CMB frame (in which the universe supposedly looks isotropic). We emphasize that our procedure is justified and that their criticism serves only to highlight the rather "arbitrary corrections" that are made to the data in order to infer isotropic cosmic acceleration. This is a vivid illustration of the 'Cosmological Fitting Problem' faced by observers who live in an inhomogeneous universe but still use the maximally symmetric FLRW cosmolgy to interpret observations.A response to Rubin & Heitlauf: "Is the expansion of the universe accelerating? All signs still point to yes"
(2019)
Authors:
Jacques Colin, Roya Mohayaee, Mohamed Rameez, Subir SarkarA Roadmap for HEP Software and Computing R&D for the 2020s
Computing and Software for Big Science Springer Nature 3:1 (2019) 7