Physics opportunities with a fixed target experiment at the LHC (AFTER@LHC)

Conference · Fri Jun 01 00:00:00 EDT 2018 · PoS

DOI:https://doi.org/10.22323/1.324.0035· OSTI ID:1457137

Hadjidakis, Cynthia ^[1]; Anselmino, Mauro; Arnaldi, R. ^[2]; Brodsky, Stanley J. ^[3]; Chambert, V. ^[2]; Da Silva, C. ^[4]; Didelez, Jean-Pierre ^[1]; Echevarria, M. G. ^[5]; Ferreiro, E. G. ^[6]; Fleuret, F. ^[7]; Gao, Y. ^[8]; Genolini, B. ^[9]; Hrivnacova, I. ^[1]; Kikola, D. ^[10]; Klein, Andi ^[4]; Kurepin, A. ^[11]; Kusina, A. ^[12]; Lansberg, Jean-Philippe ^[1]; Lorce, C. ^[7]; Lyonnet, F. ^[13] ; Martinez, G. ^[14]; Massacrier, L. ^[1]; Nass, A. ^[15]; Pisano, C. ^[16]; Robbe, P. ^[17]; Schienbein, I. ^[18]; Schlegel, Marc ^[19]; Scomparin, E. ^[2]; Seixas, J. ^[20]; Shao, H.S. ^[21]; Signori, Andrea ^[22]; Steffens, E. ^[23]; Szymanowski, L. ^[24]; Topilskaya, N. ^[11]; Trzeciak, B. ^[25]; Uggerhoj, U. I. ^[26]; Uras, A. ^[27]; Ulrich, R. ^[28]; Wagner, J. ^[24]; Yamanaka, N. ^[1]; Yang, Z. ^[8]

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1. Inst. de Physique Nucleaire (IPN), Orsay (France)
2. INFN Sez. Torino (Italy)
3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
5. INFN Sez. Pavia (Italy)
6. Dept. de Física de Partículas, USC, Santiago de Compostella, Spain
7. Ecole Polytechnique, Palaiseau (France)
8. Tsinghua Univ., Beijing (China)
9. Inst. of Nuclear Physics (IPN), Orsay (France)
10. Warsaw University of Technology, Warsaw (Poland)
11. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
12. Polish Academy of Sciences (PAS), Krakow (Poland). Henryk Niewodniczanski Inst. of Nuclear Physics
13. Southern Methodist Univ., Dallas, TX (United States)
14. SUBATECH, IMT Atlantique, Université de Nantes, CNRS-IN2P3, Nantes (France)
15. Forschungszentrum Julich (Germany)
16. Dipartimento di Fisica, Universita degli Studi di Pavia, Pavia (Italy)
17. Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay (France)
18. Université Grenoble-Alpes, CNRS/IN2P3, 38026 Grenoble (France)
19. Institute for Theoretical Physics, Tübingen U., Tübingen, Germany
20. Lab. of Instrumentation and Experimental Particle Physics (LIP), Lisbon (Portugal); Inst. of Superior Tecnico (IST), Lisbon (Portugal). Centre for Theoretical and Particle Physics (CFTP)
21. Laboratoire de Physique Théorique et Hautes Énergies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 place Jussieu, 75252 Paris Cedex 05, France
22. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
23. Physics Institute, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
24. National Centre for Nuclear Research (NCBJ), Hoza 69, 00-681, Warsaw, Poland
25. Univ. of Utrecht (Netherlands)
26. Aarhus Univ. (Denmark)
27. Université Claude Bernard Lyon-I, CNRS/IN2P3, Villeurbanne, France
28. Karlsruhe Inst. of Technology (KIT) (Germany)

By extracting the beam with a bent crystal or by using an internal gas target, the multi-TeV proton and lead LHC beams allow one to perform the most energetic fixed-target experiments (AFTER@LHC) and to study p+p and p+A collisions at \sqrt{s_NN}=115 GeV and Pb+p and Pb+A collisions at \sqrt{s_NN}=72 GeV. Such studies would address open questions in the domain of the nucleon and nucleus partonic structure at high-x, quark-gluon plasma and, by using longitudinally or transversally polarised targets, spin physics. In this paper, we discuss the physics opportunities of a fixed-target experiment at the LHC and we report on the possible technical implementations of a high-luminosity experiment. We finally present feasibility studies for Drell-Yan, open heavy-flavour and quarkonium production, with an emphasis on high-x and spin physics.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1457137
• Report Number(s): JLAB-THY-18-2754; DOE/OR/23177-4484
• Journal Information: PoS, Vol. PSTP2017; Conference: 17th International Workshop on Polarized Sources, Targets, and Polarimetry (PSTP2017), 16-20 Oct 2017. Kaist, South Korea
• Country of Publication: United States
• Language: English