An experiment for electron-hadron scattering at the LHC

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

doi:10.1140/epjc/s10052-021-09967-z

An experiment for electron-hadron scattering at the LHC

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

^*Corresponding author for this work

Physics and Astronomy

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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.

Original language	English
Article number	40
Number of pages	26
Journal	European Physical Journal C
Volume	82
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-021-09967-z
Publication status	Published - 15 Jan 2022

Bibliographical note

Funding Information:
This paper relies on a decade of work and collaboration with the hundreds of authors of the 2012 [1] and 2020 [2] LHeC design papers. The work has been accompanied by the CERN Directorate and guided by an International Advisory Committee chaired by em. DG of CERN, Herwig Schopper. Very fruitful discussions are acknowledged which some of us had with John Jowett, Luciano Musa and further members of the ALICE Collaboration. Special thanks are due to the organisers of the Off-Shell Conference, Kristin Lohwasser, Matthias Schott and colleagues, who encouraged and supported this paper to be written. JGM gratefully acknowledges the hospitality of the CERN theory group. We further acknowledge financial support by: Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2019-2022); the “María de Maeztu” Units of Excellence program MDM2016-0692 and the Spanish Research State Agency under project FPA2017-83814-P; Fundaçao para a Cie ^ ncia e a Tecnologia (Portugal) under project CERN/FISPAR/0024/2019; the South African Department of Science and Innovation and the National Research Foundation; the UK Science and Technology Facilities Council; U.S. DOE under contracts DE-AC05-06OR23177 and DE-SC0012704; European Union ERDF; the European Research Council under project ERC-2018-ADG-835105 YoctoLHC; MSCA RISE 823947 “Heavy ion collisions: collectivity and precision in saturation physics” (HIEIC); and European Union’s Horizon 2020 research and innovation programme under grant agreement No. 824093.

Publisher Copyright:
© 2022, The Author(s).

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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André, K. D. J., Bella, L. A., 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., ... Yamazaki, Y. (2022). An experiment for electron-hadron scattering at the LHC. European Physical Journal C, 82(1), Article 40. https://doi.org/10.1140/epjc/s10052-021-09967-z

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title = "An experiment for electron-hadron scattering at the LHC",

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.",

author = "Andr{\'e}, {K. D.J.} and Bella, {L. Aperio} and N. Armesto and Bogacz, {S. A.} and D. Britzger and Br{\"u}ning, {O. S.} and M. D{\textquoteright}Onofrio and Ferreiro, {E. G.} and O. Fischer and C. Gwenlan and Holzer, {B. J.} and M. Klein and U. Klein and F. Kocak and P. Kostka and M. Kumar and B. Mellado and Milhano, {J. G.} and Newman, {P. R.} and K. Piotrzkowski and A. Polini and X. Ruan and S. Russenschuk and C. Schwanenberger and E. Vilella-Figueras and Y. Yamazaki",

note = "Funding Information: This paper relies on a decade of work and collaboration with the hundreds of authors of the 2012 [1] and 2020 [2] LHeC design papers. The work has been accompanied by the CERN Directorate and guided by an International Advisory Committee chaired by em. DG of CERN, Herwig Schopper. Very fruitful discussions are acknowledged which some of us had with John Jowett, Luciano Musa and further members of the ALICE Collaboration. Special thanks are due to the organisers of the Off-Shell Conference, Kristin Lohwasser, Matthias Schott and colleagues, who encouraged and supported this paper to be written. JGM gratefully acknowledges the hospitality of the CERN theory group. We further acknowledge financial support by: Xunta de Galicia (Centro singular de investigaci{\'o}n de Galicia accreditation 2019-2022); the “Mar{\'i}a de Maeztu” Units of Excellence program MDM2016-0692 and the Spanish Research State Agency under project FPA2017-83814-P; Funda{\c c}ao para a Cie ^ ncia e a Tecnologia (Portugal) under project CERN/FISPAR/0024/2019; the South African Department of Science and Innovation and the National Research Foundation; the UK Science and Technology Facilities Council; U.S. DOE under contracts DE-AC05-06OR23177 and DE-SC0012704; European Union ERDF; the European Research Council under project ERC-2018-ADG-835105 YoctoLHC; MSCA RISE 823947 “Heavy ion collisions: collectivity and precision in saturation physics” (HIEIC); and European Union{\textquoteright}s Horizon 2020 research and innovation programme under grant agreement No. 824093. Publisher Copyright: {\textcopyright} 2022, The Author(s). ",

year = "2022",

month = jan,

day = "15",

doi = "10.1140/epjc/s10052-021-09967-z",

language = "English",

volume = "82",

journal = "European Physical Journal C",

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André, KDJ, Bella, LA, Armesto, N, Bogacz, SA, Britzger, D, Brüning, OS, D’Onofrio, M, Ferreiro, EG, Fischer, O, Gwenlan, C, Holzer, BJ, Klein, M, Klein, U, Kocak, F, Kostka, P, Kumar, M, Mellado, B, Milhano, JG, Newman, PR, Piotrzkowski, K, Polini, A, Ruan, X, Russenschuk, S, Schwanenberger, C, Vilella-Figueras, E & Yamazaki, Y 2022, 'An experiment for electron-hadron scattering at the LHC', European Physical Journal C, vol. 82, no. 1, 40. https://doi.org/10.1140/epjc/s10052-021-09967-z

TY - JOUR

T1 - An experiment for electron-hadron scattering at the LHC

AU - André, K. D.J.

AU - Bella, L. Aperio

AU - Armesto, N.

AU - Bogacz, S. A.

AU - Britzger, D.

AU - Brüning, O. S.

AU - D’Onofrio, M.

AU - Ferreiro, E. G.

AU - Fischer, O.

AU - Gwenlan, C.

AU - Holzer, B. J.

AU - Klein, M.

AU - Klein, U.

AU - Kocak, F.

AU - Kostka, P.

AU - Kumar, M.

AU - Mellado, B.

AU - Milhano, J. G.

AU - Newman, P. R.

AU - Piotrzkowski, K.

AU - Polini, A.

AU - Ruan, X.

AU - Russenschuk, S.

AU - Schwanenberger, C.

AU - Vilella-Figueras, E.

AU - Yamazaki, Y.

N1 - Funding Information: This paper relies on a decade of work and collaboration with the hundreds of authors of the 2012 [1] and 2020 [2] LHeC design papers. The work has been accompanied by the CERN Directorate and guided by an International Advisory Committee chaired by em. DG of CERN, Herwig Schopper. Very fruitful discussions are acknowledged which some of us had with John Jowett, Luciano Musa and further members of the ALICE Collaboration. Special thanks are due to the organisers of the Off-Shell Conference, Kristin Lohwasser, Matthias Schott and colleagues, who encouraged and supported this paper to be written. JGM gratefully acknowledges the hospitality of the CERN theory group. We further acknowledge financial support by: Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2019-2022); the “María de Maeztu” Units of Excellence program MDM2016-0692 and the Spanish Research State Agency under project FPA2017-83814-P; Fundaçao para a Cie ^ ncia e a Tecnologia (Portugal) under project CERN/FISPAR/0024/2019; the South African Department of Science and Innovation and the National Research Foundation; the UK Science and Technology Facilities Council; U.S. DOE under contracts DE-AC05-06OR23177 and DE-SC0012704; European Union ERDF; the European Research Council under project ERC-2018-ADG-835105 YoctoLHC; MSCA RISE 823947 “Heavy ion collisions: collectivity and precision in saturation physics” (HIEIC); and European Union’s Horizon 2020 research and innovation programme under grant agreement No. 824093. Publisher Copyright: © 2022, The Author(s).

PY - 2022/1/15

Y1 - 2022/1/15

N2 - 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.

AB - 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.

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DO - 10.1140/epjc/s10052-021-09967-z

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An experiment for electron-hadron scattering at the LHC

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