The Forward Physics Facility at the High-Luminosity LHC
Authors: Feng Jonathan L , Kling Felix , Reno Mary Hall , Rojo Juan , Soldin Dennis , Anchordoqui Luis A , Boyd Jamie , Ismail Ahmed , Harland-Lang Lucian , Kelly Kevin J , Pandey Vishvas , Trojanowski Sebastian , Tsai Yu-Dai , Alameddine Jean-Marco , Araki Takeshi , Ariga Akitaka , Ariga Tomoko , Asai Kento , Bacchetta Alessandro , Balazs Kincso , Barr Alan J , Battistin Michele , Bian Jianming , Bertone Caterina , Bai Weidong , Bakhti Pouya , Balantekin A Baha , Barman Basabendu , Batell Brian , Bauer Martin , Bauer Brian , Becker Mathias , Berlin Asher , Bertuzzo Enrico , Bhattacharya Atri , Bonvini Marco , Boogert Stewart T , Boyarsky Alexey , Bramante Joseph , Brdar Vedran , Carmona Adrian , Casper David W , Celiberto Francesco Giovanni , Cerutti Francesco , Chachamis Grigorios , Chauhan Garv , Citron Matthew , Copello Emanuele , Corso Jean-Pierre , Darmé Luc , D’Agnolo Raffaele Tito , Darvishi Neda , Das Arindam , De Lellis Giovanni , De Roeck Albert , de Vries Jordy , Dembinski Hans P , Demidov Sergey , deNiverville Patrick , Denton Peter B , Deppisch Frank F , Dev P S Bhupal , Di Crescenzo Antonia , Dienes Keith R , Diwan Milind V , Dreiner Herbi K , Du Yong , Dutta Bhaskar , Duwentäster Pit , Elie Lucie , Ellis Sebastian A R , Enberg Rikard , Farzan Yasaman , Fieg Max , Foguel Ana Luisa , Foldenauer Patrick , Foroughi-Abari Saeid , Fortin Jean-François , Friedland Alexander , Fuchs Elina , Fucilla Michael , Gallmeister Kai , Garcia Alfonso , García Canal Carlos A , Garzelli Maria Vittoria , Gauld Rhorry , Ghosh Sumit , Ghoshal Anish , Gibson Stephen , Giuli Francesco , Gonçalves Victor P , Gorbunov Dmitry , Goswami Srubabati , Grau Silvia , Günther Julian Y , Guzzi Marco , Haas Andrew , Hakulinen Timo , Harris Steven P , Harz Julia , Helo Herrera Juan Carlos , Hill Christopher S , Hirsch Martin , Hobbs Timothy J , Höche Stefan , Hryczuk Andrzej , Huang Fei , Inada Tomohiro , Infantino Angelo , Ismail Ameen , Jacobsson Richard , Jana Sudip , Jeong Yu Seon , Ježo Tomas , Jho Yongsoo , Jodłowski Krzysztof , Kalashnikov Dmitry , Kärkkäinen Timo J , Keppel Cynthia , Kim Jongkuk , Klasen Michael , Klein Spencer R , Ko Pyungwon , Köhler Dominik , Komatsu Masahiro , Kovařík Karol , Kulkarni Suchita , Kumar Jason , Kumar Karan , Kuo Jui-Lin , Krauss Frank , Kusina Aleksander , Laletin Maxim , Le Roux Chiara , Lee Seung J , Lee Hye-Sung , Lefebvre Helena , Li Jinmian , Li Shuailong , Li Yichen , Liu Wei , Liu Zhen , Lonjon Mickael , Lyu Kun-Feng , Maciula Rafal , Abraham Roshan Mammen , Masouminia Mohammad R , McFayden Josh , Mikulenko Oleksii , Mohammed Mohammed M A , Mohan Kirtimaan A , Morfín Jorge G , Mosel Ulrich , Mosny Martin , Muzakka Khoirul F , Nadolsky Pavel , Nakano Toshiyuki , Nangia Saurabh , Cornago Angel Navascues , Nevay Laurence J , Ninin Pierre , Nocera Emanuele R , Nomura Takaaki , Nunes Rui , Okada Nobuchika , Olness Fred , Osborne John , Otono Hidetoshi , Ovchynnikov Maksym , Papa Alessandro , Pei Junle , Peon Guillermo , Perez Gilad , Pickering Luke , Plätzer Simon , Plestid Ryan , Poddar Tanmay Kumar , Quílez Pablo , Rai Mudit , Rajaee Meshkat , Raut Digesh , Reimitz Peter , Resnati Filippo , Rhode Wolfgang , Richardson Peter , Ritz Adam , Rokujo Hiroki , Roszkowski Leszek , Ruhe Tim , Ruiz Richard , Sabate-Gilarte Marta , Sandrock Alexander , Sarcevic Ina , Sarkar Subir , Sato Osamu , Scherb Christiane , Schienbein Ingo , Schulz Holger , Schwaller Pedro , Sciutto Sergio J , Sengupta Dipan , Shchutska Lesya , Shimomura Takashi , Silvetti Federico , Sinha Kuver , Sjöstrand Torbjörn , Sobczyk Jan T , Song Huayang , Soriano Jorge F , Soreq Yotam , Stasto Anna , Stuart David , Su Shufang , Su Wei , Szczurek Antoni , Tabrizi Zahra , Takubo Yosuke , Taoso Marco , Thomas Brooks , Thonet Pierre , Tuckler Douglas , Sabio Vera Agustin , Vincke Heinz , Vishnudath K N , Wang Zeren Simon , Winkler Martin W , Wu Wenjie , Xie Keping , Xu Xun-Jie , You Tevong , Yu Ji-Young , Yu Jiang-Hao , Zapp Korinna , Zhang Yongchao , Zhang Yue , Zhou Guanghui , Funchal Renata Zukanovich 
Published: January 2023

Abstract
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing LHC experiments. The proposed Forward Physics Facility (FPF), to be located several hundred meters from the ATLAS interaction point and shielded by concrete and rock, will host a suite of experiments to probe standard model (SM) processes and search for physics beyond the standard model (BSM). In this report, we review the status of the civil engineering plans and the experiments to explore the diverse physics signals that can be uniquely probed in the forward region. FPF experiments will be sensitive to a broad range of BSM physics through searches for new particle scattering or decay signatures and deviations from SM expectations in high statistics analyses with TeV neutrinos in this low-background environment. High statistics neutrino detection will also provide valuable data for fundamental topics in perturbative and non-perturbative QCD and in weak interactions. Experiments at the FPF will enable synergies between forward particle production at the LHC and astroparticle physics to be exploited. We report here on these physics topics, on infrastructure, detector, and simulation studies, and on future directions to realize the FPF’s physics potential.