Search for long-lived neutral particles produced in pp collisions at s=13 TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer

Physical Review D American Physical Society (APS) 101:5 (2020) 052013

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, 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, T Alexopoulos, A Alfonsi, F Alfonsi, M Alhroob, B Ali, M Aliev, G Alimonti, SP Alkire, C Allaire, BMM Allbrooke, BW Allen, PP Allport, A Aloisio, F Alonso, C Alpigiani, AA Alshehri, M Alvarez Estevez, 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, E Antipov, M Antonelli, DJA Antrim, F Anulli, M Aoki, JA Aparisi Pozo, L Aperio Bella, JP Araque, V Araujo Ferraz, R Araujo Pereira, C Arcangeletti, ATH Arce, FA Arduh, J-F Arguin, S Argyropoulos, J-H Arling, AJ Armbruster, A Armstrong, O Arnaez, H Arnold, ZP Arrubarrena Tame, G Artoni, S Artz, S Asai, T Asawatavonvanich, N Asbah, EM Asimakopoulou, L Asquith, J Assahsah, K Assamagan, R Astalos, RJ Atkin, M Atkinson, NB Atlay, H Atmani, K Augsten, G Avolio, R Avramidou, MK Ayoub, AM Azoulay, G Azuelos, H Bachacou, K Bachas, M Backes, F Backman, P Bagnaia, M Bahmani, H Bahrasemani, AJ Bailey, VR Bailey, JT Baines, 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, G Barbour, 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 Basan, A Bassalat, MJ Basso, RL Bates, 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, 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, G Bernardi, C Bernius, FU Bernlochner, T Berry, P Berta, C Bertella, IA Bertram, O Bessidskaia Bylund, N Besson, A Bethani, S Bethke, A Betti, AJ Bevan, J Beyer, DS Bhattacharya, P Bhattarai, 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, D Biswas, A Bitadze, C Bittrich, K Bjørke, 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, CD Booth, HM Borecka-Bielska, A Borisov, G Borissov, J Bortfeldt, D Bortoletto, 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, 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, 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, JTP Burr, CD Burton, JC Burzynski, V Büscher, E Buschmann, PJ Bussey, JM Butler, CM Buttar, JM Butterworth, P Butti, W Buttinger, CJ Buxo Vazquez, 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, A Caltabiano, 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, F Cardillo, G Carducci, I Carli, T Carli, G Carlino, BT Carlson, L Carminati, RMD Carney, S Caron, E Carquin, S Carrá, JWS Carter, MP Casado, AF Casha, DW Casper, R Castelijn, FL Castillo, L Castillo Garcia, V Castillo Gimenez, NF Castro, A Catinaccio, JR Catmore, A Cattai, V Cavaliere, E Cavallaro, M Cavalli-Sforza, V Cavasinni, E Celebi, L Cerda Alberich, K Cerny, AS Cerqueira, A Cerri, L Cerrito, F Cerutti, A Cervelli, SA Cetin, Z Chadi, D Chakraborty, WS Chan, WY Chan, JD Chapman, B Chargeishvili, DG Charlton, TP Charman, CC Chau, S Che, S Chekanov, SV Chekulaev, GA Chelkov, MA Chelstowska, B Chen, C Chen, CH Chen, H Chen, J Chen, J Chen, J Chen, S Chen, SJ Chen, X Chen, Y-H Chen, HC Cheng, HJ Cheng, A Cheplakov, E Cheremushkina, R Cherkaoui El Moursli, E Cheu, K Cheung, TJA Chevalérias, L Chevalier, V Chiarella, G Chiarelli, G Chiodini, AS Chisholm, A Chitan, I Chiu, YH Chiu, MV Chizhov, K Choi, AR Chomont, S Chouridou, YS Chow, MC Chu, X Chu, J Chudoba, AJ Chuinard, JJ Chwastowski, L Chytka, D Cieri, KM Ciesla, D Cinca, V Cindro, IA Cioară, A Ciocio, F Cirotto, ZH Citron, M Citterio, DA Ciubotaru, BM Ciungu, A Clark, MR Clark, PJ Clark, C Clement, Y Coadou, M Cobal, A Coccaro, J Cochran, H Cohen, AEC Coimbra, L Colasurdo, B Cole, AP Colijn, J Collot, P Conde Muiño, SH Connell, IA Connelly, S Constantinescu, F Conventi, AM Cooper-Sarkar, F Cormier, KJR Cormier, LD Corpe, M Corradi, EE Corrigan, F Corriveau, A Cortes-Gonzalez, MJ Costa, F Costanza, D Costanzo, G Cowan, JW Cowley, J Crane, K Cranmer, SJ Crawley, RA Creager, S Crépé-Renaudin, F Crescioli, M Cristinziani, V Croft, G Crosetti, A Cueto, T Cuhadar Donszelmann, AR Cukierman, WR Cunningham, S Czekierda, P Czodrowski, MJ Da Cunha Sargedas De Sousa, JV Da Fonseca Pinto, C Da Via, W Dabrowski, F Dachs, T Dado, S Dahbi, T Dai, C Dallapiccola, M Dam, G D’amen, V D’Amico, J Damp, JR Dandoy, MF Daneri, NP Dang, NS Dann, M Danninger, V Dao, G Darbo, O Dartsi, A Dattagupta, T Daubney, S D’Auria, C David, T Davidek, DR Davis, I Dawson, K De, R De Asmundis, M De Beurs, S De Castro, S De Cecco, N De Groot, P de Jong, H De la Torre, A De Maria, D De Pedis, A De Salvo, U De Sanctis, M De Santis, A De Santo, K De Vasconcelos Corga, JB De Vivie De Regie, C Debenedetti, DV Dedovich, AM Deiana, J Del Peso, Y Delabat Diaz, D Delgove, F Deliot, CM Delitzsch, M Della Pietra, D Della Volpe, A Dell’Acqua, L Dell’Asta, M Delmastro, C Delporte, PA Delsart, DA DeMarco, S Demers, M Demichev, G Demontigny, SP Denisov, L D’Eramo, D Derendarz, JE Derkaoui, F Derue, P Dervan, K Desch, C Deterre, K Dette, C Deutsch, MR Devesa, PO Deviveiros, A Dewhurst, FA Di Bello, A Di Ciaccio, L Di Ciaccio, WK Di Clemente, C Di Donato, A Di Girolamo, G Di Gregorio, B Di Micco, R Di Nardo, KF Di Petrillo, R Di Sipio, D Di Valentino, C Diaconu, FA Dias, T Dias Do Vale, MA Diaz, J Dickinson, EB Diehl, J Dietrich, S Díez Cornell, A Dimitrievska, W Ding, J Dingfelder, F Dittus, F Djama, T Djobava, JI Djuvsland, MAB Do Vale, M Dobre, D Dodsworth, C Doglioni, J Dolejsi, Z Dolezal, M Donadelli, B Dong, J Donini, A D’onofrio, M D’Onofrio, J Dopke, A Doria, MT Dova, AT Doyle, E Drechsler, E Dreyer, T Dreyer, AS Drobac, D Du, Y Duan, F Dubinin, M Dubovsky, A Dubreuil, E Duchovni, G Duckeck, A Ducourthial, OA Ducu, D Duda, A Dudarev, AC Dudder, EM Duffield, L Duflot, M Dührssen, C Dülsen, M Dumancic, AE Dumitriu, AK Duncan, M Dunford, A Duperrin, H Duran Yildiz, M Düren, A Durglishvili, D Duschinger, B Dutta, D Duvnjak, GI Dyckes, M Dyndal, S Dysch, BS Dziedzic, KM Ecker, RC Edgar, MG Eggleston, T Eifert, G Eigen, K Einsweiler, T Ekelof, H El Jarrari, R El Kosseifi, V Ellajosyula, M Ellert, F Ellinghaus, AA Elliot, N Ellis, J Elmsheuser, M Elsing, D Emeliyanov, A Emerman, Y Enari, MB Epland, J Erdmann, A Ereditato, PA Erland, M Errenst, M Escalier, C Escobar, O Estrada Pastor, E Etzion, H Evans, A Ezhilov, F Fabbri, L Fabbri, V Fabiani, G Facini, RM Faisca Rodrigues Pereira, RM Fakhrutdinov, S Falciano, PJ Falke, S Falke, J Faltova, Y Fang, Y Fang, G Fanourakis, M Fanti, M Faraj, A Farbin, A Farilla, EM Farina, T Farooque, S Farrell, SM Farrington, P Farthouat, F Fassi, P Fassnacht, D Fassouliotis, M Faucci Giannelli, WJ Fawcett, L Fayard, OL Fedin, W Fedorko, A Fehr, M Feickert, L Feligioni, A Fell, C Feng, M Feng, MJ Fenton, AB Fenyuk, SW Ferguson, J Ferrando, A Ferrante, A Ferrari, P Ferrari, R Ferrari, DE Ferreira de Lima, A Ferrer, D Ferrere, C Ferretti, F Fiedler, A Filipčič, F Filthaut, KD Finelli, MCN Fiolhais, L Fiorini, F Fischer, WC Fisher, I Fleck, P Fleischmann, RRM Fletcher, T Flick, BM Flierl, L Flores, LR Flores Castillo, FM Follega, N Fomin, JH Foo, GT Forcolin, A Formica, FA Förster, AC Forti, AG Foster, MG Foti, D Fournier, H Fox, P Francavilla, S Francescato, M Franchini, S Franchino, D Francis, L Franconi, M Franklin, AN Fray, PM Freeman, B Freund, WS Freund, EM Freundlich, DC Frizzell, D Froidevaux, JA Frost, C Fukunaga, E Fullana Torregrosa, E Fumagalli, T Fusayasu, J Fuster, A Gabrielli, A Gabrielli, S Gadatsch, P Gadow, G Gagliardi, LG Gagnon, C Galea, B Galhardo, GE Gallardo, EJ Gallas, BJ Gallop, G Galster, R Gamboa Goni, KK Gan, S Ganguly, J Gao, Y Gao, YS Gao, C García, JE García Navarro, JA García Pascual, C Garcia-Argos, M Garcia-Sciveres, RW Gardner, N Garelli, S Gargiulo, CA Garner, V Garonne, SJ Gasiorowski, P Gaspar, A Gaudiello, G Gaudio, IL Gavrilenko, A Gavrilyuk, C Gay, G Gaycken, EN Gazis, AA Geanta, CM Gee, CNP Gee, J Geisen, M Geisen, C Gemme, MH Genest, C Geng, S Gentile, S George, T Geralis, LO Gerlach, P Gessinger-Befurt, G Gessner, S Ghasemi, M Ghasemi Bostanabad, M Ghneimat, A Ghosh, A Ghosh, B Giacobbe, S Giagu, N Giangiacomi, P Giannetti, A Giannini, G Giannini, SM Gibson, M Gignac, D Gillberg, G Gilles, DM Gingrich, MP Giordani, PF Giraud, G Giugliarelli, D Giugni, F Giuli, S Gkaitatzis, I Gkialas, EL Gkougkousis, P Gkountoumis, LK Gladilin, C Glasman, J Glatzer, PCF Glaysher, A Glazov, GR Gledhill, M Goblirsch-Kolb, D Godin, S Goldfarb, T Golling, D Golubkov, A Gomes, R Goncalves Gama, R Gonçalo, G Gonella, L Gonella, A Gongadze, F Gonnella, JL Gonski, S González de la Hoz, S Gonzalez-Sevilla, GR Gonzalvo Rodriguez, L Goossens, NA Gorasia, PA Gorbounov, HA Gordon, B Gorini, E Gorini, A Gorišek, AT Goshaw, MI Gostkin, CA Gottardo, M Gouighri, AG Goussiou, N Govender, C Goy, E Gozani, I Grabowska-Bold, EC Graham, J Gramling, E Gramstad, S Grancagnolo, M Grandi, V Gratchev, PM Gravila, FG Gravili, C Gray, HM Gray, C Grefe, K Gregersen, IM Gregor, P Grenier, K Grevtsov, C Grieco, NA Grieser, AA Grillo, K Grimm, S Grinstein, J-F Grivaz, S Groh, E Gross, J Grosse-Knetter, ZJ Grout, C Grud, A Grummer, L Guan, W Guan, C Gubbels, J Guenther, A Guerguichon, JGR Guerrero Rojas, F Guescini, D Guest, R Gugel, T Guillemin, S Guindon, U Gul, J Guo, W Guo, Y Guo, Z Guo, R Gupta, S Gurbuz, G Gustavino, M Guth, P Gutierrez, C Gutschow, C Guyot, C Gwenlan, CB Gwilliam, A Haas, C Haber, HK Hadavand, A Hadef, S Hageböck, M Haleem, J Haley, G Halladjian, GD Hallewell, K Hamacher, P Hamal, K Hamano, H Hamdaoui, M Hamer, GN Hamity, K Han, L Han, S Han, YF Han, K Hanagaki, M Hance, DM Handl, B Haney, R Hankache, E Hansen, JB Hansen, JD Hansen, MC Hansen, PH Hansen, EC Hanson, K Hara, T Harenberg, S Harkusha, PF Harrison, NM Hartmann, Y Hasegawa, A Hasib, S Hassani, S Haug, R Hauser, LB Havener, M Havranek, CM Hawkes, RJ Hawkings, D Hayden, C Hayes, RL Hayes, CP Hays, JM Hays, HS Hayward, SJ Haywood, F He, MP Heath, V Hedberg, S Heer, KK Heidegger, WD Heidorn, J Heilman, S Heim, T Heim, B Heinemann, JJ Heinrich, L Heinrich, J Hejbal, L Helary, A Held, S Hellesund, CM Helling, S Hellman, C Helsens, RCW Henderson, Y Heng, L Henkelmann, S Henkelmann, AM Henriques Correia, H Herde, V Herget, Y Hernández Jiménez, H Herr, MG Herrmann, T Herrmann, G Herten, R Hertenberger, L Hervas, TC Herwig, GG Hesketh, NP Hessey, A Higashida, S Higashino, E Higón-Rodriguez, K Hildebrand, JC Hill, KK Hill, KH Hiller, SJ Hillier, M Hils, I Hinchliffe, F Hinterkeuser, M Hirose, S Hirose, D Hirschbuehl, B Hiti, O Hladik, DR Hlaluku, X Hoad, J Hobbs, N Hod, MC Hodgkinson, A Hoecker, D Hohn, D Hohov, T Holm, TR Holmes, M Holzbock, LBAH Hommels, S Honda, TM Hong, JC Honig, A Hönle, BH Hooberman, WH Hopkins, Y Horii, P Horn, LA Horyn, S Hou, A Hoummada, J Howarth, J Hoya, M Hrabovsky, J Hrdinka, I Hristova, J Hrivnac, A Hrynevich, T Hryn’ova, PJ Hsu, S-C Hsu, Q Hu, S Hu, YF Hu, DP Huang, Y Huang, Y Huang, Z Hubacek, F Hubaut, M Huebner, F Huegging, TB Huffman, M Huhtinen, RFH Hunter, P Huo, N Huseynov, J Huston, J Huth, R Hyneman, S Hyrych, G Iacobucci, G Iakovidis, I Ibragimov, L Iconomidou-Fayard, P Iengo, R Ignazzi, O Igonkina, R Iguchi, T Iizawa, Y Ikegami, M Ikeno, D Iliadis, N Ilic, F Iltzsche, G Introzzi, M Iodice, K Iordanidou, V Ippolito, MF Isacson, M Ishino, W Islam, C Issever, S Istin, F Ito, JM Iturbe Ponce, R Iuppa, A Ivina, H Iwasaki, JM Izen, V Izzo, P Jacka, P Jackson, RM Jacobs, BP Jaeger, V Jain, G Jäkel, KB Jakobi, K Jakobs, T Jakoubek, J Jamieson, KW Janas, R Jansky, J Janssen, M Janus, PA Janus, G Jarlskog, N Javadov, T Javůrek, M Javurkova, F Jeanneau, L Jeanty, J Jejelava, A Jelinskas, P Jenni, J Jeong, N Jeong, S Jézéquel, H Ji, J Jia, H Jiang, Y Jiang, Z Jiang, S Jiggins, FA Jimenez Morales, J Jimenez Pena, S Jin, A Jinaru, O Jinnouchi, H Jivan, P Johansson, KA Johns, CA Johnson, RWL Jones, SD Jones, S Jones, TJ Jones, J Jongmanns, PM Jorge, J Jovicevic, X Ju, JJ Junggeburth, A Juste Rozas, A Kaczmarska, M Kado, H Kagan, M Kagan, A Kahn, C Kahra, T Kaji, E Kajomovitz, CW Kalderon, A Kaluza, A Kamenshchikov, M Kaneda, NJ Kang, S Kang, L Kanjir, Y Kano, VA Kantserov, J Kanzaki, LS Kaplan, D Kar, K Karava, MJ Kareem, SN Karpov, ZM Karpova, V Kartvelishvili, AN Karyukhin, L Kashif, RD Kass, A Kastanas, C Kato, J Katzy, K Kawade, K Kawagoe, T Kawaguchi, T Kawamoto, G Kawamura, EF Kay, VF Kazanin, R Keeler, R Kehoe, JS Keller, E Kellermann, D Kelsey, JJ Kempster, J Kendrick, KE Kennedy, O Kepka, S Kersten, BP Kerševan, S Ketabchi Haghighat, M Khader, F Khalil-Zada, M Khandoga, A Khanov, AG Kharlamov, T Kharlamova, EE Khoda, A Khodinov, TJ Khoo, E Khramov, J Khubua, S Kido, M Kiehn, CR Kilby, YK Kim, N Kimura, OM Kind, BT King, D Kirchmeier, J Kirk, AE Kiryunin, T Kishimoto, DP Kisliuk, V Kitali, O Kivernyk, T Klapdor-Kleingrothaus, M Klassen, C Klein, MH Klein, M Klein, U Klein, K Kleinknecht, P Klimek, A Klimentov, T Klingl, T Klioutchnikova, FF Klitzner, P Kluit, S Kluth, E Kneringer, EBFG Knoops, A Knue, D Kobayashi, T Kobayashi, M Kobel, M Kocian, T Kodama, P Kodys, PT Koenig, T Koffas, NM Köhler, T Koi, M Kolb, I Koletsou, T Komarek, T Kondo, K Köneke, AXY Kong, AC König, T Kono, R Konoplich, V Konstantinides, N Konstantinidis, B Konya, R Kopeliansky, S Koperny, K Korcyl, K Kordas, G Koren, A Korn, I Korolkov, EV Korolkova, N Korotkova, O Kortner, S Kortner, T Kosek, VV Kostyukhin, A Kotsokechagia, A Kotwal, A Koulouris, A Kourkoumeli-Charalampidi, C Kourkoumelis, E Kourlitis, V Kouskoura, AB Kowalewska, R Kowalewski, W Kozanecki, AS Kozhin, VA Kramarenko, G Kramberger, D Krasnopevtsev, MW Krasny, A Krasznahorkay, D Krauss, JA Kremer, J Kretzschmar, P Krieger, F Krieter, A Krishnan, K Krizka, K Kroeninger, H Kroha, J Kroll, J Kroll, KS Krowpman, J Krstic, U Kruchonak, H Krüger, N Krumnack, MC Kruse, JA Krzysiak, T Kubota, O Kuchinskaia, S Kuday, JT Kuechler, S Kuehn, A Kugel, T Kuhl, V Kukhtin, R Kukla, Y Kulchitsky, S Kuleshov, YP Kulinich, M Kuna, T Kunigo, A Kupco, T Kupfer, O Kuprash, H Kurashige, LL Kurchaninov, YA Kurochkin, A Kurova, MG Kurth, ES Kuwertz, M Kuze, AK Kvam, J Kvita, T Kwan, A La Rosa, L La Rotonda, F La Ruffa, C Lacasta, F Lacava, DPJ Lack, H Lacker, D Lacour, E Ladygin, R Lafaye, B Laforge, T Lagouri, S Lai, IK Lakomiec, S Lammers, W Lampl, C Lampoudis, E Lançon, U Landgraf, MPJ Landon, MC Lanfermann, VS Lang, JC Lange, RJ Langenberg, AJ Lankford, F Lanni, K Lantzsch, A Lanza, A Lapertosa, S Laplace, JF Laporte, T Lari, F Lasagni Manghi, M Lassnig, TS Lau, A Laudrain, A Laurier, M Lavorgna, SD Lawlor, M 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Search for PeV Gamma-Ray Emission from the Southern Hemisphere with 5 Years of Data from the IceCube Observatory

The Astrophysical Journal: an international review of astronomy and astronomical physics American Astronomical Society (2020)

Authors:

H Bagherpour, C Argüelles, J Auffenberg, T Anderson, I Ansseau, P Backes, G Anton, S Axani, X Bai, E Bernardini, DZ Besson, E Blaufuss, D Bindig, S BenZvi, D Berley, JB Tjus, G Binder, S Blot, J Brostean-Kaiser, RS Busse, D Chirkin, A Burgman, J Buscher, T Carver, E Cheung

Abstract:

The measurement of diffuse PeV gamma-ray emission from the Galactic plane would provide information about the energy spectrum and propagation of Galactic cosmic rays, and the detection of a point-like source of PeV gamma rays would be strong evidence for a Galactic source capable of accelerating cosmic rays up to at least a few PeV. This paper presents several un-binned maximum likelihood searches for PeV gamma rays in the Southern Hemisphere using 5 years of data from the IceTop air shower surface detector and the in-ice array of the IceCube Observatory. The combination of both detectors takes advantage of the low muon content and deep shower maximum of gamma-ray air showers, and provides excellent sensitivity to gamma rays between $\sim$0.6 PeV and 100 PeV. Our measurements of point-like and diffuse Galactic emission of PeV gamma rays are consistent with background, so we constrain the angle-integrated diffuse gamma-ray flux from the Galactic Plane at 2 PeV to $2.61 \times 10^{-19}$ cm$^{-2}$ s$^{-1}$ TeV$^{-1}$ at 90% confidence, assuming an E$^{-3}$ spectrum, and we estimate 90% upper limits on point-like emission at 2 PeV between 10$^{-21}$ - 10$^{-20}$ cm$^{-2}$ s$^{-1}$ TeV$^{-1}$ for an E$^{-2}$ spectrum, depending on declination. Furthermore, we exclude unbroken power-law emission up to 2 PeV for several TeV gamma-ray sources observed by H.E.S.S., and calculate upper limits on the energy cutoffs of these sources at 90% confidence. We also find no PeV gamma rays correlated with neutrinos from IceCube's high-energy starting event sample. These are currently the strongest constraints on PeV gamma-ray emission.

A Search for MeV to TeV Neutrinos from Fast Radio Bursts with IceCube

The Astrophysical Journal: an international review of astronomy and astronomical physics American Astronomical Society (2020)

Authors:

GW Sullivan, T Stürwald, K Tollefson, T Stuttard, L Tomankova, A Terliuk, F Tenholt, I Taboada, S Tilav, M Tselengidou, S Toscano, CF Turley, A Turcati, R Turcotte, C Tönnis, A Trettin, CF Tung, D Tosi, J Vandenbroucke, MAU Elorrieta, NV Eijndhoven, WV Driessche, S Vanheule, E Unger, M Usner

Abstract:

We present two searches for IceCube neutrino events coincident with 28 fast radio bursts (FRBs) and one repeating FRB. The first improves upon a previous IceCube analysis -- searching for spatial and temporal correlation of events with FRBs at energies greater than roughly 50 GeV -- by increasing the effective area by an order of magnitude. The second is a search for temporal correlation of MeV neutrino events with FRBs. No significant correlation is found in either search, therefore, we set upper limits on the time-integrated neutrino flux emitted by FRBs for a range of emission timescales less than one day. These are the first limits on FRB neutrino emission at the MeV scale, and the limits set at higher energies are an order-of-magnitude improvement over those set by any neutrino telescope.

Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in √s=13 TeV pp collisions using the ATLAS detector

European Physical Journal C Springer Nature 80:2 (2020) 123

Authors:

ATLAS Collaboration, G Aad, B Abbott, Alan Barr

Abstract:

A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb−1 of proton–proton collisions recorded by the ATLAS detector at the Large Hadron Collider at s√=13 TeV. Three R-parity-conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised for the first of these scenarios, but the results are also interpreted in the others. No significant deviations from the Standard Model expectations are observed and limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of the scenarios. For a massless lightest neutralino, masses up to 420 GeV are excluded for the production of the lightest-chargino pairs assuming W-boson-mediated decays and up to 1 TeV for slepton-mediated decays, whereas for slepton-pair production masses up to 700 GeV are excluded assuming three generations of mass-degenerate sleptons.

Time-integrated Neutrino Source Searches with 10 years of IceCube Data

Physical Review Letters American Physical Society (2020)

Authors:

S Robertson, M Rongen, C Rott, T Ruhe, D Ryckbosch, D Rysewyk, I Safa, SES Herrera, A Sandrock, J Sandroos, M Santander, SUBIR Sarkar, Subir SARKAR, K Satalecka, M Schaufel, H Schieler, P Schlunder, T Schmidt, A Schneider, J Schneider, FG Schröder, L Schumacher, S Sclafani, D Seckel, S Seunarine

Abstract:

This paper presents the results from point-like neutrino source searches using ten years of IceCube data collected between Apr.~6, 2008 and Jul.~10, 2018. We evaluate the significance of an astrophysical signal from a point-like source looking for an excess of clustered neutrino events with energies typically above $\sim1\,$TeV among the background of atmospheric muons and neutrinos. We perform a full-sky scan, a search within a selected source catalog, a catalog population study, and three stacked Galactic catalog searches. The most significant point in the Northern hemisphere from scanning the sky is coincident with the Seyfert II galaxy NGC 1068, which was included in the source catalog search. The excess at the coordinates of NGC 1068 is inconsistent with background expectations at the level of $2.9\,\sigma$ after accounting for statistical trials. The combination of this result along with excesses observed at the coordinates of three other sources, including TXS 0506+056, suggests that, collectively, correlations with sources in the Northern catalog are inconsistent with background at 3.3$\,\sigma$ significance. These results, all based on searches for a cumulative neutrino signal integrated over the ten years of available data, motivate further study of these and similar sources, including time-dependent analyses, multimessenger correlations, and the possibility of stronger evidence with coming upgrades to the detector.