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1. Science Requirements and Detector Concepts for the Electron-Ion Collider EIC Yellow Report

Author

Khalek, R Abdul, Accardi, A, Adam, J, Adamiak, D, Akers, W, Albaladejo, M, Al-bataineh, A, Alexeev, MG, Ameli, F, Antonioli, P, Armesto, N, Armstrong, WR, Arratia, M, Arrington, J, Asaturyan, A, Asai, M, Aschenauer, EC, Aune, S, Avagyan, H, Gayoso, C Ayerbe, Azmoun, B, Bacchetta, A, Baker, MD, Barbosa, F, Barion, L, Barish, KN, Barry, PC, Battaglieri, M, Bazilevsky, A, Behera, NK, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bhattacharya, S, Bissolotti, C, Boer, D, Boglione, M, Bondì, M, Boora, P, Borsa, I, Bossù, F, Bozzi, G, Brandenburg, JD, Brei, N, Bressan, A, Brooks, WK, Bufalino, S, Bukhari, MHS, Burkert, V, Buttimore, NH, Camsonne, A, Celentano, A, Celiberto, FG, Chang, W, Chatterjee, C, Chen, K, Chetry, T, Chiarusi, T, Chien, Y-T, Chiosso, M, Chu, X, Chudakov, E, Cicala, G, Cisbani, E, Cloet, IC, Cocuzza, C, Cole, PL, Colella, D, Collins, JL, Constantinou, M, Contalbrigo, M, Contin, G, Corliss, R, Cosyn, W, Courtoy, A, Crafts, J, Cruz-Torres, R, Cuevas, RC, D'Alesio, U, Torre, S Dalla, Das, D, Dasgupta, SS, Da Silva, C, Deconinck, W, Defurne, M, DeGraw, W, Dehmelt, K, Del Dotto, A, Delcarro, F, Deshpande, A, Detmold, W, De Vita, R, Diefenthaler, M, Dilks, C, Dixit, DU, Dulat, S, Dumitru, A, Dupré, R, and Durham, JM

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Affordable and Clean Energy, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Nuclear and plasma physics, Particle and high energy physics
Abstract

This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC will be a powerful new high-luminosity facility in the United States with the capability to collide high-energy electron beams with high-energy proton and ion beams, providing access to those regions in the nucleon and nuclei where their structure is dominated by gluons. Moreover, polarized beams in the EIC will give unprecedented access to the spatial and spin structure of the proton, neutron, and light ions. The studies leading to this document were commissioned and organized by the EIC User Group with the objective of advancing the state and detail of the physics program and developing detector concepts that meet the emerging requirements in preparation for the realization of the EIC. The effort aims to provide the basis for further development of concepts for experimental equipment best suited for the science needs, including the importance of two complementary detectors and interaction regions. This report consists of three volumes. Volume I is an executive summary of our findings and developed concepts. In Volume II we describe studies of a wide range of physics measurements and the emerging requirements on detector acceptance and performance. Volume III discusses general-purpose detector concepts and the underlying technologies to meet the physics requirements. These considerations will form the basis for a world-class experimental program that aims to increase our understanding of the fundamental structure of all visible matter.

Published
2022

2. Snowmass 2021 whitepaper: Proton structure at the precision frontier

Author

Amoroso, S., Apyan, A., Armesto, N., Ball, R. D., Bertone, V., Bissolotti, C., Bluemlein, J., Boughezal, R., Bozzi, G., Britzger, D., Buckley, A., Candido, A., Carrazza, S., Celiberto, F. G., Cerci, S., Chachamis, G., Cooper-Sarkar, A. M., Courtoy, A., Cridge, T., Cruz-Martinez, J. M., Giuli, F., Guzzi, M., Gwenlan, C., Harland-Lang, L. A., Hekhorn, F., Hobbs, T. J., Hoeche, S., Huss, A., Huston, J., Jalilian-Marian, J., Klein, M., Krintiras, G. K., Loizides, C., Lin, H. -W., Magni, G., Malaescu, B., Mistlberger, B., Moch, S., Nadolsky, P. M., Nocera, E. R., Olness, F. I., Petriello, F., Pires, J., Rabbertz, K., Rojo, J., Schnell, G., Schwan, C., Siodmok, A., Soper, D. E., Sutton, M., Thorne, R. S., Ubiali, M., Vita, G., Weber, J. H., Xie, K., Yuan, C. -P., and Zhou, B.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitepaper summarizes the status and future prospects for determination of high-precision PDFs applicable in a wide range of energies and experiments, in particular in precision tests of the Standard Model and in new physics searches at the high-luminosity Large Hadron Collider and Electron-Ion Collider. We discuss the envisioned advancements in experimental measurements, QCD theory, global analysis methodology, and computing that are necessary to bring unpolarized PDFs in the nucleon to the N2LO and N3LO accuracy in the QCD coupling strength. Special attention is given to the new tasks that emerge in the era of the precision PDF analysis, such as those focusing on the robust control of systematic factors both in experimental measurements and theoretical computations. Various synergies between experimental and theoretical studies of the hadron structure are explored, including opportunities for studying PDFs for nuclear and meson targets, PDFs with electroweak contributions or dependence on the transverse momentum, for incisive comparisons between phenomenological models for the PDFs and computations on discrete lattice, and for cross-fertilization with machine learning/AI approaches. [Submitted to the US Community Study on the Future of Particle Physics (Snowmass 2021).], Comment: 83 pages, 27 figures, contribution to Snowmass 2021; v.3: journal version

Published
2022
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3. An Experiment for Electron-Hadron Scattering at the LHC

Author

André, K. D. J., Bella, L. Aperio, Armesto, N., Bogacz, S. A., Britzger, D., Brüning, O. S., D'Onofrio, M., Ferreiro, E. G., Fischer, O., Gwenlan, C., Holzer, B. J., Klein, M., Klein, U., Kocak, F., Kostka, P., Kumar, M., Mellado, B., Milhano, J. G., Newman, P. R., Piotrzkowski, K., Polini, A., Ruan, X., Russenschuk, S., Schwanenberger, C., Vilella-Figueras, E., and Yamazaki, Y.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract

Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron ($eh$) scattering experiment at the LHC in the thirties for which key physics topics and their relation to the hadron-hadron HL-LHC physics programme are discussed. Demands are derived set by these physics topics on the design of the LHeC detector, a corresponding update of which is described. Optimisations on the accelerator design, especially the interaction region (IR), are presented. Initial accelerator considerations indicate that a common IR is possible to be built which alternately could serve $eh$ and $hh$ collisions while other experiments would stay on $hh$ in either condition. A forward-backward symmetrised option of the LHeC detector is sketched which would permit extending the LHeC physics programme to also include aspects of hadron-hadron physics. The vision of a joint $eh$ and $hh$ physics experiment is shown to open new prospects for solving fundamental problems of high energy heavy-ion physics including the partonic structure of nuclei and the emergence of hydrodynamics in quantum field theory while the genuine TeV scale DIS physics is of unprecedented rank., Comment: 27 pages, 24 figures, 6 tables; to appear in Eur. Phys. J. C

Published
2022
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4. Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report

Author

Abdul Khalek, R., Accardi, A., Adam, J., Adamiak, D., Akers, W., Albaladejo, M., Al-bataineh, A., Alexeev, M.G., Ameli, F., Antonioli, P., Armesto, N., Armstrong, W.R., Arratia, M., Arrington, J., Asaturyan, A., Asai, M., Aschenauer, E.C., Aune, S., Avagyan, H., Ayerbe Gayoso, C., Azmoun, B., Bacchetta, A., Baker, M.D., Barbosa, F., Barion, L., Barish, K.N., Barry, P.C., Battaglieri, M., Bazilevsky, A., Behera, N.K., Benmokhtar, F., Berdnikov, V.V., Bernauer, J.C., Bertone, V., Bhattacharya, S., Bissolotti, C., Boer, D., Boglione, M., Bondì, M., Boora, P., Borsa, I., Bossù, F., Bozzi, G., Brandenburg, J.D., Brei, N., Bressan, A., Brooks, W.K., Bufalino, S., Bukhari, M.H.S., Burkert, V., Buttimore, N.H., Camsonne, A., Celentano, A., Celiberto, F.G., Chang, W., Chatterjee, C., Chen, K., Chetry, T., Chiarusi, T., Chien, Y.-T., Chiosso, M., Chu, X., Chudakov, E., Cicala, G., Cisbani, E., Cloet, I.C., Cocuzza, C., Cole, P.L., Colella, D., Collins, J.L., II, Constantinou, M., Contalbrigo, M., Contin, G., Corliss, R., Cosyn, W., Courtoy, A., Crafts, J., Cruz-Torres, R., Cuevas, R.C., D'Alesio, U., Dalla Torre, S., Das, D., Dasgupta, S.S., Da Silva, C., Deconinck, W., Defurne, M., DeGraw, W., Dehmelt, K., Del Dotto, A., Delcarro, F., Deshpande, A., Detmold, W., De Vita, R., Diefenthaler, M., Dilks, C., Dixit, D.U., Dulat, S., Dumitru, A., Dupré, R., Durham, J.M., Echevarria, M.G., El Fassi, L., Elia, D., Ent, R., Esha, R., Ethier, J.J., Evdokimov, O., Eyser, K.O., Fanelli, C., Fatemi, R., Fazio, S., Fernandez-Ramirez, C., Finger, M., Finger, M., Jr., Fitzgerald, D., Flore, C., Frederico, T., Friščić, I., Fucini, S., Furletov, S., Furletova, Y., Gal, C., Gamberg, L., Gao, H., Garg, P., Gaskell, D., Gates, K., Gay Ducati, M.B., Gericke, M., Gil Da Silveira, G., Girod, F.-X., Glazier, D.I., Gnanvo, K., Goncalves, V.P., Gonella, L., Gonzalez Hernandez, J.O., Goto, Y., Grancagnolo, F., Greiner, L.C., Guryn, W., Guzey, V., Hatta, Y., Hattawy, M., Hauenstein, F., He, X., Hemmick, T.K., Hen, O., Heyes, G., Higinbotham, D.W., Hiller Blin, A.N., Hobbs, T.J., Hohlmann, M., Horn, T., Hou, T.-J., Huang, J., Huang, Q., Huber, G.M., Hyde, C.E., Iakovidis, G., Ilieva, Y., Jacak, B.V., Jacobs, P.M., Jadhav, M., Janoska, Z., Jentsch, A., Jezo, T., Jing, X., Jones, P.G., Joo, K., Joosten, S., Kafka, V., Kalantarians, N., Kalicy, G., Kang, D., Kang, Z.B., Kauder, K., Kay, S.J.D., Keppel, C.E., Kim, J., Kiselev, A., Klasen, M., Klein, S., Klest, H.T., Korchak, O., Kostina, A., Kotko, P., Kovchegov, Y.V., Krelina, M., Kuleshov, S., Kumano, S., Kumar, K.S., Kumar, R., Kumar, L., Kumerički, K., Kusina, A., Kutak, K., Lai, Y.S., Lalwani, K., Lappi, T., Lauret, J., Lavinsky, M., Lawrence, D., Lednicky, D., Lee, C., Lee, K., Lee, S.H., Levorato, S., Li, H., Li, S., Li, W., Li, X., Li, W.B., Ligonzo, T., Liu, H., Liu, M.X., Liu, X., Liuti, S., Liyanage, N., Lorcé, C., Lu, Z., Lucero, G., Lukow, N.S., Lunghi, E., Majka, R., Makris, Y., Mandjavidze, I., Mantry, S., Mäntysaari, H., Marhauser, F., Markowitz, P., Marsicano, L., Mastroserio, A., Mathieu, V., Mehtar-Tani, Y., Melnitchouk, W., Mendez, L., Metz, A., Meziani, Z.-E., Mezrag, C., Mihovilovič, M., Milner, R., Mirazita, M., Mkrtchyan, H., Mkrtchyan, A., Mochalov, V., Moiseev, V., Mondal, M.M., Morreale, A., Morrison, D., Motyka, L., Moutarde, H., Muñoz Camacho, C., Murgia, F., Murray, M.J., Musico, P., Nadel-Turonski, P., Nadolsky, P.M., Nam, J., Newman, P.R., Neyret, D., Nguyen, D., Nocera, E.R., Noferini, F., Noto, F., Nunes, A.S., Okorokov, V.A., Olness, F., Osborn, J.D., Page, B.S., Park, S., Parker, A., Paschke, K., Pasquini, B., Paukkunen, H., Paul, S., Pecar, C., Pegg, I.L., Pellegrino, C., Peng, C., Pentchev, L., Perrino, R., Petriello, F., Petti, R., Pilloni, A., Pinkenburg, C., Pire, B., Pisano, C., Pitonyak, D., Poblaguev, A.A., Polakovic, T., Posik, M., Potekhin, M., Preghenella, R., Preins, S., Prokudin, A., Pujahari, P., Purschke, M.L., Pybus, J.R., Radici, M., Rajput-Ghoshal, R., Reimer, P.E., Rinaldi, M., Ringer, F., Roberts, C.D., Rodini, S., Rojo, J., Romanov, D., Rossi, P., Santopinto, E., Sarsour, M., Sassot, R., Sato, N., Schenke, B., Schmidke, W.B., Schmidt, I., Schmidt, A., Schmookler, B., Schnell, G., Schweitzer, P., Schwiening, J., Scimemi, I., Scopetta, S., Segovia, J., Seidl, R., Sekula, S., Semenov-Tian-Shanskiy, K., Shao, D.Y., Sherrill, N., Sichtermann, E., Siddikov, M., Signori, A., Singh, B.K., Širca, S., Slifer, K., Slominski, W., Sokhan, D., Sondheim, W.E., Song, Y., Soto, O., Spiesberger, H., Stasto, A.M., Stepanov, P., Sterman, G., Stevens, J.R., Stewart, I.W., Strakovsky, I., Strikman, M., Sturm, M., Stutzman, M.L., Sullivan, M., Surrow, B., Svihra, P., Syritsyn, S., Szczepaniak, A., Sznajder, P., Szumila-Vance, H., Szymanowski, L., Tadepalli, A.S., Tapia Takaki, J.D., Tassielli, G.F., Terry, J., Tessarotto, F., Tezgin, K., Tomasek, L., Torales Acosta, F., Tribedy, P., Tricoli, A., Triloki, Tripathi, S., Trotta, R.L., Tsai, O.D., Tu, Z., Tuvè, C., Ullrich, T., Ungaro, M., Urciuoli, G.M., Valentini, A., Vancura, P., Vandenbroucke, M., Van Hulse, C., Varner, G., Venugopalan, R., Vitev, I., Vladimirov, A., Volpe, G., Vossen, A., Voutier, E., Wagner, J., Wallon, S., Wang, H., Wang, Q., Wang, X., Wei, S.Y., Weiss, C., Wenaus, T., Wennlöf, H., Wickramaarachchi, N., Wikramanayake, A., Winney, D., Wong, C.P., Woody, C., Xia, L., Xiao, B.W., Xie, J., Xing, H., Xu, Q.H., Zhang, J., Zhang, S., Zhang, Z., Zhao, Z.W., Zhao, Y.X., Zheng, L., Zhou, Y., and Zurita, P.

Published
2022
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5. The Large Hadron–Electron Collider at the HL-LHC

Author

Agostini, P, Aksakal, H, Alekhin, S, Allport, P P, Andari, N, Andre, K D J, Angal-Kalinin, D, Antusch, S, Aperio Bella, L, Apolinario, L, Apsimon, R, Apyan, A, Arduini, G, Ari, V, Armbruster, A, Armesto, N, Auchmann, B, Aulenbacher, K, Azuelos, G, Backovic, S, Bailey, I, Bailey, S, Balli, F, Behera, S, Behnke, O, Ben-Zvi, I, Benedikt, M, Bernauer, J, Bertolucci, S, Biswal, S S, Blümlein, J, Bogacz, A, Bonvini, M, Boonekamp, M, Bordry, F, Boroun, G R, Bottura, L, Bousson, S, Bouzas, A O, Bracco, C, Bracinik, J, Britzger, D, Brodsky, S J, Bruni, C, Brüning, O, Burkhardt, H, Cakir, O, Calaga, R, Caldwell, A, Calıskan, A, Camarda, S, Catalan-Lasheras, N C, Cassou, K, Cepila, J, Cetinkaya, V, Chetvertkova, V, Cole, B, Coleppa, B, Cooper-Sarkar, A, Cormier, E, Cornell, A S, Corsini, R, Cruz-Alaniz, E, Currie, J, Curtin, D, D’Onofrio, M, Dainton, J, Daly, E, Das, A, Das, S P, Dassa, L, de Blas, J, Delle Rose, L, Denizli, H, Deshpande, K S, Douglas, D, Duarte, L, Dupraz, K, Dutta, S, Efremov, A V, Eichhorn, R, Eskola, K J, Ferreiro, E G, Fischer, O, Flores-Sánchez, O, Forte, S, Gaddi, A, Gao, J, Gehrmann, T, Gehrmann-De Ridder, A, Gerigk, F, Gilbert, A, Giuli, F, Glazov, A, Glover, N, Godbole, R M, Goddard, B, Gonçalves, V, Gonzalez-Sprinberg, G A, Goyal, A, Grames, J, Granados, E, Grassellino, A, Gunaydin, Y O, Guo, Y C, Guzey, V, Gwenlan, C, Hammad, A, Han, C C, Harland-Lang, L, Haug, F, Hautmann, F, Hayden, D, Hessler, J, Helenius, I, Henry, J, Hernandez-Sanchez, J, Hesari, H, Hobbs, T J, Hod, N, Hoffstaetter, G H, Holzer, B, Honorato, C G, Hounsell, B, Hu, N, Hug, F, Huss, A, Hutton, A, Islam, R, Iwamoto, S, Jana, S, Jansova, M, Jensen, E, Jones, T, Jowett, J M, Kaabi, W, Kado, M, Kalinin, D A, Karadeniz, H, Kawaguchi, S, Kaya, U, Khalek, R A, Khanpour, H, Kilic, A, Klein, M, Klein, U, Kluth, S, Köksal, M, Kocak, F, Korostelev, M, Kostka, P, Krelina, M, Kretzschmar, J, Kuday, S, Kulipanov, G, Kumar, M, Kuze, M, Lappi, T, Larios, F, Latina, A, Laycock, P, Lei, G, Levitchev, E, Levonian, S, Levy, A, Li, R, Li, X, Liang, H, Litvinenko, V, Liu, M, Liu, T, Liu, W, Liu, Y, Liuti, S, Lobodzinska, E, Longuevergne, D, Luo, X, Ma, W, Machado, M, Mandal, S, Mäntysaari, H, Marhauser, F, Marquet, C, Martens, A, Martin, R, Marzani, S, McFayden, J, Mcintosh, P, Mellado, B, Meot, F, Milanese, A, Milhano, J G, Militsyn, B, Mitra, M, Moch, S, Mohammadi Najafabadi, M, Mondal, S, Moretti, S, Morgan, T, Morreale, A, Nadolsky, P, Navarra, F, Nergiz, Z, Newman, P, Niehues, J, Nissen, E A, Nowakowski, M, Okada, N, Olivier, G, Olness, F, Olry, G, Osborne, J A, Ozansoy, A, Pan, R, Parker, B, Patra, M, Paukkunen, H, Peinaud, Y, Pellegrini, D, Perez-Segurana, G, Perini, D, Perrot, L, Pietralla, N, Pilicer, E, Pire, B, Pires, J, Placakyte, R, Poelker, M, Polifka, R, Polini, A, Poulose, P, Pownall, G, Pupkov, Y A, Queiroz, F S, Rabbertz, K, Radescu, V, Rahaman, R, Rai, S K, Raicevic, N, Ratoff, P, Rashed, A, Raut, D, Raychaudhuri, S, Repond, J, Rezaeian, A H, Rimmer, R, Rinolfi, L, Rojo, J, Rosado, A, Ruan, X, Russenschuck, S, Sahin, M, Salgado, C A, Sampayo, O A, Satendra, K, Satyanarayan, N, Schenke, B, Schirm, K, Schopper, H, Schott, M, Schulte, D, Schwanenberger, C, Sekine, T, Senol, A, Seryi, A, Setiniyaz, S, Shang, L, Shen, X, Shipman, N, Sinha, N, Slominski, W, Smith, S, Solans, C, Song, M, Spiesberger, H, Stanyard, J, Starostenko, A, Stasto, A, Stocchi, A, Strikman, M, Stuart, M J, Sultansoy, S, Sun, H, Sutton, M, Szymanowski, L, Tapan, I, Tapia-Takaki, D, Tanaka, M, Tang, Y, Tasci, A T, Ten-Kate, A T, Thonet, P, Tomas-Garcia, R, Tommasini, D, Trbojevic, D, Trott, M, Tsurin, I, Tudora, A, Turk Cakir, I, Tywoniuk, K, Vallerand, C, Valloni, A, Verney, D, Vilella, E, Walker, D, Wallon, S, Wang, B, Wang, K, Wang, X, Wang, Z S, Wei, H, Welsch, C, Willering, G, Williams, P H, Wollmann, D, Xiaohao, C, Xu, T, Yaguna, C E, Yamaguchi, Y, Yamazaki, Y, Yang, H, Yilmaz, A, Yock, P, Yue, C X, Zadeh, S G, Zenaiev, O, Zhang, C, Zhang, J, Zhang, R, Zhang, Z, Zhu, G, Zhu, S, Zimmermann, F, Zomer, F, Zurita, J, Zurita, P, Agostini, P, Aksakal, H, Alekhin, S, Allport, P P, Andari, N, Andre, K D J, Angal-Kalinin, D, Antusch, S, Aperio Bella, L, Apolinario, L, Apsimon, R, Apyan, A, Arduini, G, Ari, V, Armbruster, A, Armesto, N, Auchmann, B, Aulenbacher, K, Azuelos, G, Backovic, S, Bailey, I, Bailey, S, Balli, F, Behera, S, Behnke, O, Ben-Zvi, I, Benedikt, M, Bernauer, J, Bertolucci, S, Biswal, S S, Blümlein, J, Bogacz, A, Bonvini, M, Boonekamp, M, Bordry, F, Boroun, G R, Bottura, L, Bousson, S, Bouzas, A O, Bracco, C, Bracinik, J, Britzger, D, Brodsky, S J, Bruni, C, Brüning, O, Burkhardt, H, Cakir, O, Calaga, R, Caldwell, A, Calıskan, A, Camarda, S, Catalan-Lasheras, N C, Cassou, K, Cepila, J, Cetinkaya, V, Chetvertkova, V, Cole, B, Coleppa, B, Cooper-Sarkar, A, Cormier, E, Cornell, A S, Corsini, R, Cruz-Alaniz, E, Currie, J, Curtin, D, D’Onofrio, M, Dainton, J, Daly, E, Das, A, Das, S P, Dassa, L, de Blas, J, Delle Rose, L, Denizli, H, Deshpande, K S, Douglas, D, Duarte, L, Dupraz, K, Dutta, S, Efremov, A V, Eichhorn, R, Eskola, K J, Ferreiro, E G, Fischer, O, Flores-Sánchez, O, Forte, S, Gaddi, A, Gao, J, Gehrmann, T, Gehrmann-De Ridder, A, Gerigk, F, Gilbert, A, Giuli, F, Glazov, A, Glover, N, Godbole, R M, Goddard, B, Gonçalves, V, Gonzalez-Sprinberg, G A, Goyal, A, Grames, J, Granados, E, Grassellino, A, Gunaydin, Y O, Guo, Y C, Guzey, V, Gwenlan, C, Hammad, A, Han, C C, Harland-Lang, L, Haug, F, Hautmann, F, Hayden, D, Hessler, J, Helenius, I, Henry, J, Hernandez-Sanchez, J, Hesari, H, Hobbs, T J, Hod, N, Hoffstaetter, G H, Holzer, B, Honorato, C G, Hounsell, B, Hu, N, Hug, F, Huss, A, Hutton, A, Islam, R, Iwamoto, S, Jana, S, Jansova, M, Jensen, E, Jones, T, Jowett, J M, Kaabi, W, Kado, M, Kalinin, D A, Karadeniz, H, Kawaguchi, S, Kaya, U, Khalek, R A, Khanpour, H, Kilic, A, Klein, M, Klein, U, Kluth, S, Köksal, M, Kocak, F, Korostelev, M, Kostka, P, Krelina, M, Kretzschmar, J, Kuday, S, Kulipanov, G, Kumar, M, Kuze, M, Lappi, T, Larios, F, Latina, A, Laycock, P, Lei, G, Levitchev, E, Levonian, S, Levy, A, Li, R, Li, X, Liang, H, Litvinenko, V, Liu, M, Liu, T, Liu, W, Liu, Y, Liuti, S, Lobodzinska, E, Longuevergne, D, Luo, X, Ma, W, Machado, M, Mandal, S, Mäntysaari, H, Marhauser, F, Marquet, C, Martens, A, Martin, R, Marzani, S, McFayden, J, Mcintosh, P, Mellado, B, Meot, F, Milanese, A, Milhano, J G, Militsyn, B, Mitra, M, Moch, S, Mohammadi Najafabadi, M, Mondal, S, Moretti, S, Morgan, T, Morreale, A, Nadolsky, P, Navarra, F, Nergiz, Z, Newman, P, Niehues, J, Nissen, E A, Nowakowski, M, Okada, N, Olivier, G, Olness, F, Olry, G, Osborne, J A, Ozansoy, A, Pan, R, Parker, B, Patra, M, Paukkunen, H, Peinaud, Y, Pellegrini, D, Perez-Segurana, G, Perini, D, Perrot, L, Pietralla, N, Pilicer, E, Pire, B, Pires, J, Placakyte, R, Poelker, M, Polifka, R, Polini, A, Poulose, P, Pownall, G, Pupkov, Y A, Queiroz, F S, Rabbertz, K, Radescu, V, Rahaman, R, Rai, S K, Raicevic, N, Ratoff, P, Rashed, A, Raut, D, Raychaudhuri, S, Repond, J, Rezaeian, A H, Rimmer, R, Rinolfi, L, Rojo, J, Rosado, A, Ruan, X, Russenschuck, S, Sahin, M, Salgado, C A, Sampayo, O A, Satendra, K, Satyanarayan, N, Schenke, B, Schirm, K, Schopper, H, Schott, M, Schulte, D, Schwanenberger, C, Sekine, T, Senol, A, Seryi, A, Setiniyaz, S, Shang, L, Shen, X, Shipman, N, Sinha, N, Slominski, W, Smith, S, Solans, C, Song, M, Spiesberger, H, Stanyard, J, Starostenko, A, Stasto, A, Stocchi, A, Strikman, M, Stuart, M J, Sultansoy, S, Sun, H, Sutton, M, Szymanowski, L, Tapan, I, Tapia-Takaki, D, Tanaka, M, Tang, Y, Tasci, A T, Ten-Kate, A T, Thonet, P, Tomas-Garcia, R, Tommasini, D, Trbojevic, D, Trott, M, Tsurin, I, Tudora, A, Turk Cakir, I, Tywoniuk, K, Vallerand, C, Valloni, A, Verney, D, Vilella, E, Walker, D, Wallon, S, Wang, B, Wang, K, Wang, X, Wang, Z S, Wei, H, Welsch, C, Willering, G, Williams, P H, Wollmann, D, Xiaohao, C, Xu, T, Yaguna, C E, Yamaguchi, Y, Yamazaki, Y, Yang, H, Yilmaz, A, Yock, P, Yue, C X, Zadeh, S G, Zenaiev, O, Zhang, C, Zhang, J, Zhang, R, Zhang, Z, Zhu, G, Zhu, S, Zimmermann, F, Zomer, F, Zurita, J, and Zurita, P

Abstract

The Large Hadron–Electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy-recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High-Luminosity Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron–proton and proton–proton operations. This report represents an update to the LHeC’s conceptual design report (CDR), published in 2012. It comprises new results on the parton structure of the proton and heavier nuclei, QCD dynamics, and electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics by extending the accessible kinematic range of lepton–nucleus scattering by several orders of magnitude. Due to its enhanced luminosity and large energy and the cleanliness of the final hadronic states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, this report contains a detailed updated design for the energy-recovery electron linac (ERL), including a new lattice, magnet and superconducting radio-frequency technology, and further components. Challenges of energy recovery are described, and the lower-energy, high-current, three-turn ERL facility, PERLE at Orsay, is presented, which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution, and calibration goals that arise from the Higgs and parton-density-function physics programmes. This paper also presents novel results for the Future Circular Collider in electron–hadron (FCC-eh) mode, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies.

Published
2024

6. Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report

Author

Abdul Khalek, R, Abdul Khalek, R, Accardi, A, Adam, J, Adamiak, D, Akers, W, Albaladejo, M, Al-bataineh, A, Alexeev, MG, Ameli, F, Antonioli, P, Armesto, N, Armstrong, WR, Arratia, M, Arrington, J, Asaturyan, A, Asai, M, Aschenauer, EC, Aune, S, Avagyan, H, Ayerbe Gayoso, C, Azmoun, B, Bacchetta, A, Baker, MD, Barbosa, F, Barion, L, Barish, KN, Barry, PC, Battaglieri, M, Bazilevsky, A, Behera, NK, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bhattacharya, S, Bissolotti, C, Boer, D, Boglione, M, Bondì, M, Boora, P, Borsa, I, Bossù, F, Bozzi, G, Brandenburg, JD, Brei, N, Bressan, A, Brooks, WK, Bufalino, S, Bukhari, MHS, Burkert, V, Buttimore, NH, Camsonne, A, Celentano, A, Celiberto, FG, Chang, W, Chatterjee, C, Chen, K, Chetry, T, Chiarusi, T, Chien, YT, Chiosso, M, Chu, X, Chudakov, E, Cicala, G, Cisbani, E, Cloet, IC, Cocuzza, C, Cole, PL, Colella, D, Collins, JL, Constantinou, M, Contalbrigo, M, Contin, G, Corliss, R, Cosyn, W, Courtoy, A, Crafts, J, Cruz-Torres, R, Cuevas, RC, D'Alesio, U, Dalla Torre, S, Das, D, Dasgupta, SS, Da Silva, C, Deconinck, W, Defurne, M, DeGraw, W, Dehmelt, K, Del Dotto, A, Delcarro, F, Deshpande, A, Detmold, W, De Vita, R, Diefenthaler, M, Dilks, C, Dixit, DU, Dulat, S, Dumitru, A, Dupré, R, Durham, JM, Abdul Khalek, R, Abdul Khalek, R, Accardi, A, Adam, J, Adamiak, D, Akers, W, Albaladejo, M, Al-bataineh, A, Alexeev, MG, Ameli, F, Antonioli, P, Armesto, N, Armstrong, WR, Arratia, M, Arrington, J, Asaturyan, A, Asai, M, Aschenauer, EC, Aune, S, Avagyan, H, Ayerbe Gayoso, C, Azmoun, B, Bacchetta, A, Baker, MD, Barbosa, F, Barion, L, Barish, KN, Barry, PC, Battaglieri, M, Bazilevsky, A, Behera, NK, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bhattacharya, S, Bissolotti, C, Boer, D, Boglione, M, Bondì, M, Boora, P, Borsa, I, Bossù, F, Bozzi, G, Brandenburg, JD, Brei, N, Bressan, A, Brooks, WK, Bufalino, S, Bukhari, MHS, Burkert, V, Buttimore, NH, Camsonne, A, Celentano, A, Celiberto, FG, Chang, W, Chatterjee, C, Chen, K, Chetry, T, Chiarusi, T, Chien, YT, Chiosso, M, Chu, X, Chudakov, E, Cicala, G, Cisbani, E, Cloet, IC, Cocuzza, C, Cole, PL, Colella, D, Collins, JL, Constantinou, M, Contalbrigo, M, Contin, G, Corliss, R, Cosyn, W, Courtoy, A, Crafts, J, Cruz-Torres, R, Cuevas, RC, D'Alesio, U, Dalla Torre, S, Das, D, Dasgupta, SS, Da Silva, C, Deconinck, W, Defurne, M, DeGraw, W, Dehmelt, K, Del Dotto, A, Delcarro, F, Deshpande, A, Detmold, W, De Vita, R, Diefenthaler, M, Dilks, C, Dixit, DU, Dulat, S, Dumitru, A, Dupré, R, and Durham, JM

Abstract

This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC will be a powerful new high-luminosity facility in the United States with the capability to collide high-energy electron beams with high-energy proton and ion beams, providing access to those regions in the nucleon and nuclei where their structure is dominated by gluons. Moreover, polarized beams in the EIC will give unprecedented access to the spatial and spin structure of the proton, neutron, and light ions. The studies leading to this document were commissioned and organized by the EIC User Group with the objective of advancing the state and detail of the physics program and developing detector concepts that meet the emerging requirements in preparation for the realization of the EIC. The effort aims to provide the basis for further development of concepts for experimental equipment best suited for the science needs, including the importance of two complementary detectors and interaction regions. This report consists of three volumes. Volume I is an executive summary of our findings and developed concepts. In Volume II we describe studies of a wide range of physics measurements and the emerging requirements on detector acceptance and performance. Volume III discusses general-purpose detector concepts and the underlying technologies to meet the physics requirements. These considerations will form the basis for a world-class experimental program that aims to increase our understanding of the fundamental structure of all visible matter.

Published
2022

7. An experiment for electron-hadron scattering at the LHC

Author

André, K. D. J., primary, Bella, L. Aperio, additional, Armesto, N., additional, Bogacz, S. A., additional, Britzger, D., additional, Brüning, O. S., additional, D’Onofrio, M., additional, Ferreiro, E. G., additional, Fischer, O., additional, Gwenlan, C., additional, Holzer, B. J., additional, Klein, M., additional, Klein, U., additional, Kocak, F., additional, Kostka, P., additional, Kumar, M., additional, Mellado, B., additional, Milhano, J. G., additional, Newman, P. R., additional, Piotrzkowski, K., additional, Polini, A., additional, Ruan, X., additional, Russenschuk, S., additional, Schwanenberger, C., additional, Vilella-Figueras, E., additional, and Yamazaki, Y., additional

Published
2022
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8. Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Author

Amoroso, S., primary, Apyan, A., additional, Armesto, N., additional, Ball, R.D., additional, Bertone, V., additional, Bissolotti, C., additional, Blümlein, J., additional, Boughezal, R., additional, Bozzi, G., additional, Britzger, D., additional, Buckley, A., additional, Candido, A., additional, Carrazza, S., additional, Celiberto, F.G., additional, Cerci, S., additional, Chachamis, G., additional, Cooper-Sarkar, A.M., additional, Courtoy, A., additional, Cridge, T., additional, Cruz-Martinez, J.M., additional, Giuli, F., additional, Guzzi, M.G., additional, Gwenlan, C., additional, Harland-Lang, L.A., additional, Hekhorn, F., additional, Hentschinski, M., additional, Hobbs, T.J., additional, Hoeche, S., additional, Huss, A., additional, Huston, J., additional, Jadach, S., additional, Jalilian-Marian, J., additional, Klein, M., additional, Krintiras, G.K., additional, Lin, H.-W., additional, Loizides, C., additional, Magni, G., additional, Malaescu, B., additional, Mistlberger, B., additional, Moch, S., additional, Nadolsky, P.M., additional, Nocera, E.R., additional, Olness, F.I., additional, Petriello, F., additional, Pires, J., additional, Rabbertz, K., additional, Rojo, J., additional, Royon, C., additional, Schnell, G., additional, Schwan, C., additional, Siódmok, A., additional, Soper, D.E., additional, Sutton, M., additional, Thorne, R.S., additional, Ubiali, M., additional, Vita, G., additional, Weber, J.H., additional, Whitehead, J., additional, Xie, K., additional, Yuan, C.-P., additional, and Zhou, B., additional

Published
2022
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9. Parton cascades at DLA: The role of the evolution variable

Author

Andrés Carlota, Apolinário Liliana, Armesto Néstor, Cordeiro André, Dominguez Fabio, and Milhano José Guilherme

Subjects
Physics, QC1-999
Abstract

The theoretical treatment of jet quenching lacks a full description of the interplay between vacuum-like emissions, usually formulated in momentum space, and medium induced ones that demand an interface with a spacetime picture of the expanding medium and thus must be formulated in position space. In this work we build a toy Monte-Carlo parton shower ordered in formation time, virtual mass, and opening angle, which are equivalent at leading logarithmic accuracy. Aiming to explore a link with jet substructure, we compute the Lund plane distributions for the different ordering prescriptions. Further, we investigate the sensitivity of ordering prescriptions to medium effects by counting the number of events eliminated by a decoherence condition.

Published
2024
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