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Enumerating Calabi‐Yau manifolds: placing bounds on the number of diffeomorphism classes in the Kreuzer‐Skarke list

Fortschritte der Physik Wiley 72:5 (2024) 2300264

Authors:

Aditi Chandra, Andrei Constantin, Cristofero Fraser-taliente, Thomas Harvey, Andre Lukas

Abstract:

The diffeomorphism class of simply connected smooth Calabi-Yau threefolds with torsion-free cohomology is determined via certain basic topological invariants: the Hodge numbers, the triple intersection form, and the second Chern class. In the present paper, we shed some light on this classification by placing bounds on the number of diffeomorphism classes present in the set of smooth Calabi-Yau threefolds constructed from the Kreuzer-Skarke (KS) list of reflexive polytopes up to Picard number six. The main difficulty arises from the comparison of triple intersection numbers and divisor integrals of the second Chern class up to basis transformations. By using certain basis-independent invariants, some of which appear here for the first time, we are able to place lower bounds on the number of classes. Upper bounds are obtained by explicitly identifying basis transformations, using constraints related to the index of line bundles. Extrapolating our results, we conjecture that the favorable entries of the KS list of reflexive polytopes lead to some (Formula presented.) diffeomorphically distinct Calabi-Yau threefolds.
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Search for decoherence from quantum gravity with atmospheric neutrinos

Nature Physics Springer Nature 20:6 (2024) 913-920

Authors:

R Abbasi, M Ackermann, J Adams, Subir Sarkar

Abstract:

Neutrino oscillations at the highest energies and longest baselines can be used to study the structure of spacetime and test the fundamental principles of quantum mechanics. If the metric of spacetime has a quantum mechanical description, its fluctuations at the Planck scale are expected to introduce non-unitary effects that are inconsistent with the standard unitary time evolution of quantum mechanics. Neutrinos interacting with such fluctuations would lose their quantum coherence, deviating from the expected oscillatory flavour composition at long distances and high energies. Here we use atmospheric neutrinos detected by the IceCube South Pole Neutrino Observatory in the energy range of 0.5–10.0 TeV to search for coherence loss in neutrino propagation. We find no evidence of anomalous neutrino decoherence and determine limits on neutrino–quantum gravity interactions. The constraint on the effective decoherence strength parameter within an energy-independent decoherence model improves on previous limits by a factor of 30. For decoherence effects scaling as E2, our limits are advanced by more than six orders of magnitude beyond past measurements compared with the state of the art.
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QCD effects in electroweak $WZjj$ production at current and future hadron colliders

(2024)

Authors:

Barbara Jäger, Alexander Karlberg, Simon Reinhardt
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Dark Matter Line Searches with the Cherenkov Telescope Array

(2024)

Authors:

S Abe, J Abhir, A Abhishek, F Acero, A Acharyya, R Adam, A Aguasca-Cabot, I Agudo, A Aguirre-Santaella, J Alfaro, R Alfaro, N Alvarez-Crespo, R Alves Batista, J-P Amans, E Amato, G Ambrosi, L Angel, C Aramo, C Arcaro, TTH Arnesen, L Arrabito, K Asano, Y Ascasibar, J Aschersleben, H Ashkar, M Backes, A Baktash, C Balazs, M Balbo, A Baquero Larriva, V Barbosa Martins, U Barres de Almeida, JA Barrio, I Batković, R Batzofin, J Baxter, J Becerra González, G Beck, W Benbow, D Berge, E Bernardini, J Bernete, K Bernlöhr, A Berti, B Bertucci, P Bhattacharjee, S Bhattacharyya, C Bigongiari, A Biland, E Bissaldi, J Biteau, O Blanch, J Blazek, F Bocchino, C Boisson, J Bolmont, G Bonnoli, A Bonollo, P Bordas, Z Bosnjak, E Bottacini, M Böttcher, T Bringmann, E Bronzini, R Brose, AM Brown, G Brunelli, A Bulgarelli, T Bulik, I Burelli, L Burmistrov, M Burton, M Buscemi, T Bylund, J Cailleux, A Campoy-Ordaz, BK Cantlay, G Capasso, A Caproni, R Capuzzo-Dolcetta, P Caraveo, S Caroff, A Carosi, R Carosi, E Carquin, M-S Carrasco, F Cassol, L Castaldini, N Castrejon, AJ Castro-Tirado, D Cerasole, M Cerruti, PM Chadwick, S Chaty, AW Chen, M Chernyakova, A Chiavassa, J Chudoba, L Chytka, GM Cicciari, A Cifuentes, CH Coimbra Araujo, M Colapietro, V Conforti, F Conte, JL Contreras, A Costa, H Costantini, G Cotter, P Cristofari, O Cuevas, Z Curtis-Ginsberg, G D'Amico, F D'Ammando, S Dai, M Dalchenko, F Dazzi, A De Angelis, M de Bony de Lavergne, V De Caprio, EM de Gouveia Dal Pino, B De Lotto, M De Lucia, R de Menezes, M de Naurois, V de Souza, L del Peral, MV del Valle, AG Delgado Giler, J Delgado Mengual, C Delgado, M Dell'aiera, D della Volpe, D Depaoli, T Di Girolamo, A Di Piano, F Di Pierro, R Di Tria, L Di Venere, C Díaz, S Diebold, A Dinesh, J Djuvsland, RM Dominik, D Dominis Prester, A Donini, D Dorner, J Dörner, M Doro, J-L Dournaux, C Duangchan, C Dubos, L Ducci, VV Dwarkadas, J Ebr, C Eckner, K Egberts, S Einecke, D Elsässer, G Emery, M Errando, C Escanuela, P Escarate, M Escobar Godoy, J Escudero, P Esposito, S Ettori, D Falceta-Goncalves, E Fedorova, S Fegan, Q Feng, G Ferrand, F Ferrarotto, E Fiandrini, A Fiasson, M Filipovic, V Fioretti, M Fiori, L Foffano, L Font Guiteras, G Fontaine, S Fröse, Y Fukazawa, Y Fukui, A Furniss, G Galanti, G Galaz, C Galelli, S Gallozzi, V Gammaldi, M Garczarczyk, C Gasbarra, D Gasparrini, A Ghalumyan, F Gianotti, M Giarrusso, JG Giesbrecht Formiga Paiva, N Giglietto, F Giordano, R Giuffrida, J-F Glicenstein, J Glombitza, P Goldoni, JM González, MM González, J Goulart Coelho, T Gradetzke, J Granot, D Grasso, R Grau, L Gréaux, D Green, JG Green, G Grolleron, LMV Guedes, O Gueta, J Hackfeld, D Hadasch, P Hamal, W Hanlon, S Hara, VM Harvey, T Hassan, K Hayashi, B Heß, L Heckmann, M Heller, S Hernández Cadena, O Hervet, J Hinton, N Hiroshima, B Hnatyk, R Hnatyk, W Hofmann, J Holder, D Horan, P Horvath, T Hovatta, M Hrabovsky, D Hrupec, M Iarlori, T Inada, F Incardona, S Inoue, Y Inoue, F Iocco, M Iori, K Ishio, M Jamrozy, P Janecek, F Jankowsky, P Jean, J Jimenez Quiles, W Jin, C Juramy-Gilles, J Jurysek, M Kagaya, O Kalekin, V Karas, H Katagiri, J Kataoka, S Kaufmann, D Kazanas, D Kerszberg, DB Kieda, T Kleiner, G Kluge, Y Kobayashi, K Kohri, N Komin, P Kornecki, K Kosack, G Kowal, H Kubo, J Kushida, A La Barbera, N La Palombara, M Láinez, A Lamastra, J Lapington, P Laporte, S Lazarević, J Lazendic-Galloway, M Lemoine-Goumard, J-P Lenain, F Leone, E Leonora, G Leto, E Lindfors, M Linhoff, I Liodakis, A Lipniacka, S Lombardi, F Longo, R López-Coto, M López-Moya, A López-Oramas, S Loporchio, J Lozano Bahilo, PL Luque-Escamilla, O Macias, P Majumdar, M Mallamaci, D Malyshev, D Mandat, G Manicò, M Mariotti, I Márquez, P Marquez, G Marsella, J Martí, GA Martínez, M Martínez, O Martinez, C Marty, A Mas-Aguilar, M Mastropietro, D Mazin, S Menchiari, E Mestre, J-L Meunier, DM-A Meyer, M Meyer, D Miceli, M Miceli, M Michailidis, J Michałowski, T Miener, JM Miranda, A Mitchell, M Mizote, T Mizuno, R Moderski, M Molero, C Molfese, E Molina, T Montaruli, A Moralejo, D Morcuende, A Morselli, E Moulin, V Moya Zamanillo, K Munari, T Murach, A Muraczewski, H Muraishi, T Nakamori, A Nayak, R Nemmen, JP Neto, L Nickel, J Niemiec, D Nieto, M Nievas Rosillo, M Nikołajuk, L Nikolić, K Nishijima, K Noda, D Nosek, V Novotny, S Nozaki, M Ohishi, Y Ohtani, A Okumura, J-F Olive, RA Ong, M Orienti, R Orito, M Orlandini, E Orlando, S Orlando, M Ostrowski, J Otero-Santos, I Oya, I Pagano, A Pagliaro, M Palatiello, G Panebianco, D Paneque, FR Pantaleo, JM Paredes, N Parmiggiani, B Patricelli, A Pe'er, M Pech, M Pecimotika, U Pensec, M Peresano, J Pérez-Romero, M Persic, KP Peters, O Petruk, G Piano, E Pierre, E Pietropaolo, M Pihet, L Pinchbeck, G Pirola, C Pittori, C Plard, F Podobnik, M Pohl, V Pollet, G Ponti, E Prandini, G Principe, C Priyadarshi, N Produit, M Prouza, E Pueschel, G Pühlhofer, ML Pumo, F Queiroz, A Quirrenbach, S Rainò, R Rando, S Razzaque, M Regeard, A Reimer, O Reimer, A Reisenegger, W Rhode, D Ribeiro, M Ribó, C Ricci, T Richtler, J Rico, F Rieger, L Riitano, V Rizi, E Roache, G Rodriguez Fernandez, MD Rodríguez Frías, JJ Rodríguez-Vázquez, P Romano, G Romeo, J Rosado, A Rosales de Leon, G Rowell, B Rudak, AJ Ruiter, CB Rulten, I Sadeh, L Saha, T Saito, H Salzmann, M Sánchez-Conde, H Sandaker, P Sangiorgi, H Sano, M Santander, R Santos-Lima, V Sapienza, T Šarić, A Sarkar, S Sarkar, FG Saturni, S Savarese, A Scherer, F Schiavone, P Schipani, B Schleicher, P Schovanek, JL Schubert, U Schwanke, M Seglar Arroyo, IR Seitenzahl, O Sergijenko, M Servillat, T Siegert, H Siejkowski, C Siqueira, V Sliusar, A Slowikowska, H Sol, ST Spencer, D Spiga, A Stamerra, S Stanič, T Starecki, R Starling, Ł Stawarz, C Steppa, E Sæther Hatlen, T Stolarczyk, J Strišković, Y Suda, P Świerk, H Tajima, D Tak, M Takahashi, R Takeishi, T Tavernier, LA Tejedor, K Terauchi, M Teshima, V Testa, WW Tian, L Tibaldo, O Tibolla, CJ Todero Peixoto, F Torradeflot, DF Torres, G Tosti, N Tothill, F Toussenel, A Tramacere, P Travnicek, G Tripodo, A Trois, S Truzzi, A Tutone, L Vaclavek, M Vacula, P Vallania, R Vallés, C van Eldik, J van Scherpenberg, J Vandenbroucke, V Vassiliev, M Vázquez Acosta, M Vecchi, S Ventura, S Vercellone, G Verna, A Viana, N Viaux, A Vigliano, J Vignatti, CF Vigorito, J Villanueva, E Visentin, V Vitale, V Vodeb, V Voisin, V Voitsekhovskyi, S Vorobiov, G Voutsinas, I Vovk, T Vuillaume, SJ Wagner, R Walter, M White, R White, A Wierzcholska, M Will, DA Williams, F Wohlleben, A Wolter, T Yamamoto, L Yang, T Yoshida, T Yoshikoshi, G Zaharijas, L Zampieri, R Zanmar Sanchez, D Zavrtanik, M Zavrtanik, AA Zdziarski, A Zech, W Zhang, VI Zhdanov, K Ziętara, M Živec, J Zuriaga-Puig
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Improved modeling of in-ice particle showers for IceCube event reconstruction

ArXiv 2403.0247 (2024)

Authors:

R Abbasi, M Ackermann, J Adams, SK Agarwalla, JA Aguilar, M Ahlers, JM Alameddine, NM Amin, K Andeen, G Anton, C Argüelles, Y Ashida, S Athanasiadou, L Ausborm, SN Axani, X Bai, A Balagopal V, M Baricevic, SW Barwick, S Bash, V Basu, R Bay, JJ Beatty, J Becker Tjus, J Beise, C Bellenghi, C Benning, S BenZvi, D Berley, E Bernardini, DZ Besson, E Blaufuss, S Blot, F Bontempo, JY Book, C Boscolo Meneguolo, S Böser, O Botner, J Böttcher, J Braun, B Brinson, J Brostean-Kaiser, L Brusa, RT Burley, RS Busse, D Butterfield, MA Campana, I Caracas, K Carloni, J Carpio, S Chattopadhyay, N Chau, Z Chen, D Chirkin, S Choi, BA Clark, A Coleman, GH Collin, A Connolly, JM Conrad, P Coppin, R Corley, P Correa, DF Cowen, P Dave, C De Clercq, JJ DeLaunay, D Delgado, S Deng, K Deoskar, A Desai, P Desiati, KD de Vries, G de Wasseige, T DeYoung, A Diaz, JC Díaz-Vélez, M Dittmer, A Domi, L Draper, H Dujmovic, K Dutta, MA DuVernois, T Ehrhardt, L Eidenschink, A Eimer, P Eller, E Ellinger, S El Mentawi, D Elsässer, R Engel, H Erpenbeck, J Evans, PA Evenson, KL Fan, K Fang, K Farrag, AR Fazely, A Fedynitch, N Feigl, S Fiedlschuster, C Finley, L Fischer, D Fox, A Franckowiak, P Fürst, J Gallagher, E Ganster, A Garcia, E Genton, L Gerhardt, A Ghadimi, C Girard-Carillo, C Glaser, T Glüsenkamp, JG Gonzalez, S Goswami, A Granados, D Grant, SJ Gray, O Gries, S Griffin, S Griswold, KM Groth, C Günther, P Gutjahr, C Ha, C Haack, A Hallgren, R Halliday, L Halve, F Halzen, H Hamdaoui, M Ha Minh, M Handt, K Hanson, J Hardin, AA Harnisch, P Hatch, A Haungs, J Häußler, K Helbing, J Hellrung, J Hermannsgabner, L Heuermann, N Heyer, S Hickford, A Hidvegi, C Hill, GC Hill, KD Hoffman, S Hori, K Hoshina, M Hostert, W Hou, T Huber, K Hultqvist, M Hünnefeld, R Hussain, K Hymon, A Ishihara, W Iwakiri, M Jacquart, O Janik, M Jansson, GS Japaridze, M Jeong, M Jin, BJP Jones, N Kamp, D Kang, W Kang, X Kang, A Kappes, D Kappesser, L Kardum, T Karg, M Karl, A Karle, A Katil, U Katz, M Kauer, JL Kelley, M Khanal, A Khatee Zathul, A Kheirandish, J Kiryluk, SR Klein, A Kochocki, R Koirala, H Kolanoski, T Kontrimas, L Köpke, C Kopper, DJ Koskinen, P Koundal, M Kovacevich, M Kowalski, T Kozynets, J Krishnamoorthi, K Kruiswijk, E Krupczak, A Kumar, E Kun, N Kurahashi, N Lad, C Lagunas Gualda, M Lamoureux, MJ Larson, S Latseva, F Lauber, JP Lazar, JW Lee, K Leonard DeHolton, A Leszczyńska, J Liao, M Lincetto, M Liubarska, E Lohfink, C Love, CJ Lozano Mariscal, L Lu, F Lucarelli, W Luszczak, Y Lyu, J Madsen, E Magnus, KBM Mahn, Y Makino, E Manao, S Mancina, W Marie Sainte, IC Mariş, S Marka, Z Marka, M Marsee, I Martinez-Soler, R Maruyama, F Mayhew, T McElroy, F McNally, JV Mead, K Meagher, S Mechbal, A Medina, M Meier, Y Merckx, L Merten, J Micallef, J Mitchell, T Montaruli, RW Moore, Y Morii, R Morse, M Moulai, T Mukherjee, R Naab, R Nagai, M Nakos, U Naumann, J Necker, A Negi, M Neumann, H Niederhausen, MU Nisa, A Noell, A Novikov, SC Nowicki, A Obertacke Pollmann, V O'Dell, B Oeyen, A Olivas, R Orsoe, J Osborn, E O'Sullivan, H Pandya, N Park, GK Parker, EN Paudel, L Paul, C Pérez de los Heros, T Pernice, J Peterson, S Philippen, A Pizzuto, M Plum, A Pontén, Y Popovych, M Prado Rodriguez, B Pries, R Procter-Murphy, GT Przybylski, C Raab, J Rack-Helleis, K Rawlins, Z Rechav, A Rehman, P Reichherzer, E Resconi, S Reusch, W Rhode, B Riedel, A Rifaie, EJ Roberts, S Robertson, S Rodan, G Roellinghoff, M Rongen, A Rosted, C Rott, T Ruhe, L Ruohan, D Ryckbosch, I Safa, J Saffer, D Salazar-Gallegos, P Sampathkumar, A Sandrock, M Santander, S Sarkar, S Sarkar, J Savelberg, P Savina, P Schaile, M Schaufel, H Schieler, S Schindler, B Schlüter, F Schlüter, N Schmeisser, T Schmidt, J Schneider, FG Schröder, L Schumacher, S Sclafani, D Seckel, M Seikh, M Seo, S Seunarine, P Sevle Myhr, R Shah, S Shefali, N Shimizu, M Silva, B Skrzypek, B Smithers, R Snihur, J Soedingrekso, A Søgaard, D Soldin, P Soldin, G Sommani, C Spannfellner, GM Spiczak, C Spiering, M Stamatikos, T Stanev, T Stezelberger, T Stürwald, T Stuttard, GW Sullivan, I Taboada, S Ter-Antonyan, A Terliuk, M Thiesmeyer, WG Thompson, J Thwaites, S Tilav, K Tollefson, C Tönnis, S Toscano, D Tosi, A Trettin, R Turcotte, JP Twagirayezu, MA Unland Elorrieta, AK Upadhyay, K Upshaw, A Vaidyanathan, N Valtonen-Mattila, J Vandenbroucke, N van Eijndhoven, D Vannerom, J van Santen, J Vara, J Veitch-Michaelis, M Venugopal, M Vereecken, S Verpoest, D Veske, A Vijai, C Walck, A Wang, C Weaver, P Weigel, A Weindl, J Weldert, AY Wen, C Wendt, J Werthebach, M Weyrauch, N Whitehorn, CH Wiebusch, DR Williams, L Witthaus, A Wolf, M Wolf, G Wrede, XW Xu, JP Yanez, E Yildizci, S Yoshida, R Young, S Yu, T Yuan, Z Zhang, P Zhelnin, P Zilberman, M Zimmerman
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