Mixed QCD x EW corrections for Drell-Yan processes

Sissa Medialab Srl (2020) 026

Combined search for neutrinos from dark matter self-annihilation in the Galactic Centre with ANTARES and IceCube

Physical Review D: Particles, Fields, Gravitation and Cosmology American Physical Society 102:8 (2020) 082002

Authors:

ANTARES Collaboration, A Albert, M André, M Anghinolfi, M Ardid, J-J Aubert, J Aublin, B Baret, S Basa, B Belhorma, V Bertin, S Biagi, M Bissinger, J Boumaaza, M Bouta, MC Bouwhuis, H Brânzaş, R Bruijn, J Brunner, J Busto, A Capone, L Caramete, J Carr, S Celli, M Chabab, TN Chau, R Cherkaoui El Moursli, T Chiarusi, M Circella, A Coleiro, M Colomer, R Coniglione, P Coyle, A Creusot, AF Díaz, A Deschamps, C Distefano, I Di Palma, A Domi, C Donzaud, D Dornic, D Drouhin, T Eberl, N El Khayati, A Enzenhöfer, A Ettahiri, P Fermani, G Ferrara, F Filippini, L Fusco, P Gay, H Glotin, R Gozzini, R Gracia Ruiz, K Graf, C Guidi, S Hallmann, H van Haren, AJ Heijboer, Y Hello, JJ Hernández-Rey, J Hößl, J Hofestädt, F Huang, G Illuminati, CW James, M de Jong, P de Jong, M Jongen, M Kadler, O Kalekin, U Katz, NR Khan-Chowdhury, A Kouchner, I Kreykenbohm, V Kulikovskiy, R Lahmann, R Le Breton, D Lefèvre, E Leonora, G Levi, M Lincetto, D Lopez-Coto, S Loucatos, G Maggi, J Manczak, M Marcelin, A Margiotta, A Marinelli, JA Martínez-Mora, R Mele, K Melis, P Migliozzi, M Moser, A Moussa, R Muller, L Nauta, S Navas, E Nezri, C Nielsen, A Nuñez-Castiñeyra, B O'Fearraigh, M Organokov, GE Păvălaş, C Pellegrino, M Perrin-Terrin, P Piattelli, C Poirè, V Popa, T Pradier, N Randazzo, S Reck, G Riccobene, A Sánchez-Losa, DFE Samtleben, M Sanguineti, P Sapienza, F Schüssler, M Spurio, Th Stolarczyk, B Strandberg, M Taiuti, Y Tayalati, T Thakore, SJ Tingay, A Trovato, B Vallage, V Van Elewyck, F Versari, S Viola, D Vivolo, J Wilms, D Zaborov, A Zegarelli, JD Zornoza, J Zúñiga, IceCube Collaboration, 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, H Bagherpour, X Bai, A Balagopal V, A Barbano, SW Barwick, B Bastian, V Baum, S Baur, R Bay, JJ Beatty, K-H Becker, J Becker Tjus, S BenZvi, D Berley, E Bernardini, DZ Besson, G Binder, D Bindig, E Blaufuss, S Blot, C Bohm, S Böser, O Botner, J Böttcher, E Bourbeau, J Bourbeau, F Bradascio, J Braun, S Bron, J Brostean-Kaiser, A Burgman, J Buscher, RS Busse, T Carver, C Chen, E Cheung, D Chirkin, S Choi, BA Clark, K Clark, L Classen, A Coleman, GH Collin, JM Conrad, P Coppin, P Correa, DF Cowen, R Cross, P Dave, 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, P Eller, R Engel, PA Evenson, S Fahey, AR Fazely, J Felde, K Filimonov, C Finley, D Fox, 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, T Grégoire, Z Griffith, S Griswold, M Günder, M Gündüz, C Haack, A Hallgren, R Halliday, L Halve, F Halzen, K Hanson, A Haungs, D Hebecker, D Heereman, P Heix, K Helbing, R Hellauer, F Henningsen, S Hickford, J Hignight, GC Hill, KD Hoffman, R Hoffmann, T Hoinka, B Hokanson-Fasig, K Hoshina, M Huber, T Huber, K Hultqvist, M Hünnefeld, R Hussain, S In, N Iovine, A Ishihara, M Jansson, GS Japaridze, M Jeong, K Jero, BJP Jones, F Jonske, R Joppe, D Kang, W Kang, A Kappes, D Kappesser, T Karg, M Karl, A Karle, M Kauer, M Kellermann, JL Kelley, A Kheirandish, J Kim, T Kintscher, J Kiryluk, T Kittler, SR Klein, R Koirala, H Kolanoski, L Köpke, C Kopper, S Kopper, DJ Koskinen, M Kowalski, K Krings, G Krückl, N Kulacz, N Kurahashi, A Kyriacou, JL Lanfranchi, MJ Larson, F Lauber, JP Lazar, K Leonard, A Leszczyńska, QR Liu, E Lohfink, CJ Lozano Mariscal, L Lu, F Lucarelli, A Ludwig, J Lünemann, W Luszczak, Y Lyu, WY Ma, J Madsen, KBM Mahn, Y Makino, P Mallik, K Mallot, S Mancina, IC Mariş, R Maruyama, K Mase, R Maunu, F McNally, K Meagher, M Medici, A Medina, M Meier, S Meighen-Berger, G Merino, T Meures, J Micallef, D Mockler, G Momenté, T Montaruli, RW Moore, R Morse, M Moulai, P Muth, R Nagai, U Naumann, G Neer, LV Nguyen, H Niederhausen, MU Nisa, SC Nowicki, DR Nygren, A Obertacke Pollmann, M Oehler, A Olivas, A O'Murchadha, E O'Sullivan, T Palczewski, H Pandya, DV Pankova, N Park, P Peiffer, C Pérez de los Heros, S Philippen, D Pieloth, S Pieper, E Pinat, A Pizzuto, M Plum, A Porcelli, PB Price, GT Przybylski, C Raab, A Raissi, M Rameez, L Rauch, K Rawlins, IC Rea, A Rehman, R Reimann, B Relethford, M Renschler, G Renzi, E Resconi, W Rhode, M Richman, S Robertson, M Rongen, C Rott, T Ruhe, D Ryckbosch, D Rysewyk Cantu, I Safa, SE Sanchez Herrera, A Sandrock, J Sandroos, M Santander, S Sarkar, S 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, S Shefali, M Silva, R Snihur, J Soedingrekso, D Soldin, M Song, GM Spiczak, C Spiering, J Stachurska, M Stamatikos, T Stanev, R Stein, J Stettner, A Steuer, T Stezelberger, RG Stokstad, A Stö SS l, NL Strotjohann, T Stürwald, T Stuttard, GW Sullivan, I Taboada, F Tenholt, S Ter-Antonyan, A Terliuk, S Tilav, K Tollefson, L Tomankova, C Tönnis, S Toscano, D Tosi, A Trettin, M Tselengidou, CF Tung, A Turcati, R Turcotte, CF Turley, B Ty, E Unger, MA Unland Elorrieta, M Usner, J Vandenbroucke, W Van Driessche, D van Eijk, N van Eijndhoven, J van Santen, S Verpoest, M Vraeghe, C Walck, A Wallace, M Wallraff, N Wandkowsky, TB Watson, C Weaver, A Weindl, MJ Weiss, J Weldert, C Wendt, J Werthebach, BJ Whelan, N Whitehorn, K Wiebe, CH Wiebusch, L Wille, DR Williams, L Wills, M Wolf, J Wood, TR Wood, K Woschnagg, G Wrede, J Wulff, DL Xu, XW Xu, Y Xu, JP Yanez, G Yodh, S Yoshida, T Yuan, M Zöcklein

Abstract:

We present the results of the first combined dark matter search targeting the Galactic Centre using the ANTARES and IceCube neutrino telescopes. For dark matter particles with masses from 50 to 1000 GeV, the sensitivities on the self-annihilation cross section set by ANTARES and IceCube are comparable, making this mass range particularly interesting for a joint analysis. Dark matter self-annihilation through the $\tau^+\tau^-$, $\mu^+\mu^-$, $b\bar{b}$ and $W^+W^-$ channels is considered for both the Navarro-Frenk-White and Burkert halo profiles. In the combination of 2,101.6 days of ANTARES data and 1,007 days of IceCube data, no excess over the expected background is observed. Limits on the thermally-averaged dark matter annihilation cross section $\langle\sigma_A\upsilon\rangle$ are set. These limits present an improvement of up to a factor of two in the studied dark matter mass range with respect to the individual limits published by both collaborations. When considering dark matter particles with a mass of 200 GeV annihilating through the $\tau^+\tau^-$ channel, the value obtained for the limit is $7.44 \times 10^{-24} \text{cm}^{3}\text{s}^{-1}$ for the Navarro-Frenk-White halo profile. For the purpose of this joint analysis, the model parameters and the likelihood are unified, providing a benchmark for forthcoming dark matter searches performed by neutrino telescopes.

Reproductive freeze-in of self-interacting dark matter

Physical Review D American Physical Society 102:8 (2020) 83018

Authors:

John March-Russell, Hannah Tillim, Stephen M West

Abstract:

We present a mechanism for dark matter (DM) production involving a self-interacting sector that at early times is ultrarelativistic but far underpopulated relative to thermal equilibrium (such initial conditions often arise, e.g., from inflaton decay). Although elastic scatterings can establish kinetic equilibrium we show that for a broad variety of self-interactions full equilibrium is never established despite the DM yield significantly evolving due to 2→k (k>2) processes (the DM carries no conserved quantum number nor asymmetry). During the active phase of the process, the DM to Standard Model temperature ratio falls rapidly, with DM kinetic energy being converted to DM mass, the inverse of the recently discussed “cannibal DM mechanism.” As this evolution is an approach from an out-of-equilibrium to equilibrium state, entropy is not conserved. Potential observables and applications include self-interacting DM signatures in galaxies and clusters, dark acoustic oscillations, the alteration of free-streaming constraints, and possible easing of σ8 and Hubble tensions.

Flops, Gromov-Witten Invariants and Symmetries of Line Bundle Cohomology on Calabi-Yau Three-folds

(2020)

Authors:

Callum R Brodie, Andrei Constantin, Andre Lukas

A non-linear EFT description of gg → H H at NLO interfaced to POWHEG

Journal of High Energy Physics Springer Nature 2020:10 (2020) 21

Authors:

Gudrun Heinrich, Stephen P Jones, Matthias Kerner, Ludovic Scyboz