NAPAC2022 - Table of Session: TUZD (Colliders)

Paper	Title	Page
TUZD1	The Electron-Positron Future Circular Collider (FCC-ee)	315
	F. Zimmermann, M. Benedikt CERN, Meyrin, Switzerland K. Oide DPNC, Genève, Switzerland T.O. Raubenheimer SLAC, Menlo Park, California, USA
	Funding: Work supported by the European Union’s H2020 Framework Programme under grant agreement no.~951754 (FCCIS). The Future Circular electron-positron Collider (FCC-ee) is aimed at studying the Z and W bosons, the Higgs, and top quark with extremely high luminosity and good energy efficiency. Responding to a request from the 2020 Update of the European Strategy for Particle Physics, in 2021 the CERN Council has launched the FCC Feasibility Study to examine the detailed implementation of such a collider. This FCC Feasibility Study will be completed by the end of 2025 and its results be presented to the next Update of the European Strategy for Particle Physics expected in 2026/27.
	Slides TUZD1 [10.072 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD1
About •	Received ※ 03 August 2022 — Revised ※ 11 August 2022 — Accepted ※ 21 August 2022 — Issue date ※ 02 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD2	The International Effort Towards a Muon Collider
	D. Stratakis Fermilab, Batavia, Illinois, USA D. Schulte CERN, Meyrin, Switzerland
	The recently formed International Muon Collider Collaboration aims to complete the R&D and design work required to deliver a Conceptual Design Report for a multi-TeV muon collider facility within the next decade. An overview of the planned research program, identifying the most challenging R&D questions, a discussion of the design approach, and the potential of such a machine for high energy physics research will be presented.
	Slides TUZD2 [2.359 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD3	Ultimate Limits of Future Colliders	321
	M. Bai SLAC, Menlo Park, California, USA V.D. Shiltsev Fermilab, Batavia, Illinois, USA F. Zimmermann CERN, Meyrin, Switzerland
	With seven operational colliders in the world and two under construction, the international particle physics community not only actively explores options for the next facilities for detailed studies of the Higgs/electroweak physics and beyond-the-LHC energy frontier, but seeks a clear picture of the limits of the colliding beams method. In this paper, we try to consolidate various recent efforts in identifying physics limits of colliders in conjunction with societal sustainability, and share our thoughts about the perspective of reaching the ultimate quantum limit.
	Slides TUZD3 [3.848 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD3
About •	Received ※ 25 July 2022 — Revised ※ 03 August 2022 — Accepted ※ 10 August 2022 — Issue date ※ 30 August 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD4	Plans for Future Energy Frontier Accelerators to Drive Particle Physics Discovery
	M. Turner LBNL, Berkeley, California, USA M.A. Palmer BNL, Upton, New York, USA N. Pastrone INFN-Torino, Torino, Italy J.Y. Tang IHEP, Beijing, People’s Republic of China A. Valishev Fermilab, Batavia, Illinois, USA
	The U.S. Particle Physics Community Planning Exercise, "Snowmass 2021", is nearing completion. This process provides input for the Particle Physics Project Prioritization Panel (P5), which will develop a ~10 year scientific vision for the future of the U.S. high energy physics program. High energy particle colliders are the most promising tools to test the Standard Model and have been on the discovery forefront for the past 50 years. A future collider may also enable exploration of e.g., new particles and interactions, physics beyond the SM and dark matter. Several future multi-TeV collider concepts were considered during Snowmass. A range of issues were discussed, including: their physics reach, their level of maturity, the potential machine routes, timelines, R&D requirements, and common issues for these very high energy machines such as energy efficiency and cost. We will compare future collider concepts (1-100 TeV center-of-mass energy range (or beyond)) based on their physics potential, technology R&D required, and potential timelines. The aim is to explore possible strategies towards a next-generation multi-TeV collider to enable discoveries at the energy frontier.
	Slides TUZD4 [1.675 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD5	Experience and Challenges with Electron Cooling of Colliding Ion Beams in RHIC	325
	A.V. Fedotov, X. Gu, D. Kayran, J. Kewisch, S. Seletskiy BNL, Upton, New York, USA
	Funding: Work supported by the U.S. Department of Energy. Electron cooling of ion beams employing rf-accelerated electron bunches was successfully used for the RHIC physics program in 2020 and 2021 and was essential in achieving the required luminosity goals. This presentation will summarize experience and challenges with electron cooling of colliding ion beams in RHIC. We also outline ongoing studies using rf-based electron cooler LEReC.
	Slides TUZD5 [1.373 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD5
About •	Received ※ 02 August 2022 — Accepted ※ 04 August 2022 — Issue date ※ 14 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD6	DarkSRF: Using Accelerator Technology to Search for a Dark Photon
	S. Posen, A.S. Romanenkopresenter Fermilab, Batavia, Illinois, USA
	Superconducting radio frequency (SRF) cavities have long been used to accelerate beams of charged particles. But their extremely high quality factors >10¹⁰ make them useful in high sensitivity searches for physics beyond the standard model. DarkSRF is a ’light-shining-through-the-wall’ (LSW) experiment in which two SRF cavities are tuned to the same frequency and only one is powered. RF power appearing in the unpowered cavity could be a sign of conversion of photons from the powered cavity into dark photons, and then conversion back into photons. In this contribution, we overview the concept, experimental apparatus, and first results.
	Slides TUZD6 [5.398 MB]
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Paper

Title

Page

The Electron-Positron Future Circular Collider (FCC-ee)

315

F. Zimmermann, M. Benedikt
CERN, Meyrin, Switzerland
K. Oide
DPNC, Genève, Switzerland
T.O. Raubenheimer
SLAC, Menlo Park, California, USA

Funding: Work supported by the European Union’s H2020 Framework Programme under grant agreement no.~951754 (FCCIS).
The Future Circular electron-positron Collider (FCC-ee) is aimed at studying the Z and W bosons, the Higgs, and top quark with extremely high luminosity and good energy efficiency. Responding to a request from the 2020 Update of the European Strategy for Particle Physics, in 2021 the CERN Council has launched the FCC Feasibility Study to examine the detailed implementation of such a collider. This FCC Feasibility Study will be completed by the end of 2025 and its results be presented to the next Update of the European Strategy for Particle Physics expected in 2026/27.

Slides TUZD1 [10.072 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD1

About •

Received ※ 03 August 2022 — Revised ※ 11 August 2022 — Accepted ※ 21 August 2022 — Issue date ※ 02 September 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD2

The International Effort Towards a Muon Collider

D. Stratakis
Fermilab, Batavia, Illinois, USA
D. Schulte
CERN, Meyrin, Switzerland

The recently formed International Muon Collider Collaboration aims to complete the R&D and design work required to deliver a Conceptual Design Report for a multi-TeV muon collider facility within the next decade. An overview of the planned research program, identifying the most challenging R&D questions, a discussion of the design approach, and the potential of such a machine for high energy physics research will be presented.

Slides TUZD2 [2.359 MB]

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD3

Ultimate Limits of Future Colliders

321

M. Bai
SLAC, Menlo Park, California, USA
V.D. Shiltsev
Fermilab, Batavia, Illinois, USA
F. Zimmermann
CERN, Meyrin, Switzerland

With seven operational colliders in the world and two under construction, the international particle physics community not only actively explores options for the next facilities for detailed studies of the Higgs/electroweak physics and beyond-the-LHC energy frontier, but seeks a clear picture of the limits of the colliding beams method. In this paper, we try to consolidate various recent efforts in identifying physics limits of colliders in conjunction with societal sustainability, and share our thoughts about the perspective of reaching the ultimate quantum limit.

Slides TUZD3 [3.848 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD3

About •

Received ※ 25 July 2022 — Revised ※ 03 August 2022 — Accepted ※ 10 August 2022 — Issue date ※ 30 August 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD4

Plans for Future Energy Frontier Accelerators to Drive Particle Physics Discovery

M. Turner
LBNL, Berkeley, California, USA
M.A. Palmer
BNL, Upton, New York, USA
N. Pastrone
INFN-Torino, Torino, Italy
J.Y. Tang
IHEP, Beijing, People’s Republic of China
A. Valishev
Fermilab, Batavia, Illinois, USA

The U.S. Particle Physics Community Planning Exercise, "Snowmass 2021", is nearing completion. This process provides input for the Particle Physics Project Prioritization Panel (P5), which will develop a ~10 year scientific vision for the future of the U.S. high energy physics program. High energy particle colliders are the most promising tools to test the Standard Model and have been on the discovery forefront for the past 50 years. A future collider may also enable exploration of e.g., new particles and interactions, physics beyond the SM and dark matter. Several future multi-TeV collider concepts were considered during Snowmass. A range of issues were discussed, including: their physics reach, their level of maturity, the potential machine routes, timelines, R&D requirements, and common issues for these very high energy machines such as energy efficiency and cost. We will compare future collider concepts (1-100 TeV center-of-mass energy range (or beyond)) based on their physics potential, technology R&D required, and potential timelines. The aim is to explore possible strategies towards a next-generation multi-TeV collider to enable discoveries at the energy frontier.

Slides TUZD4 [1.675 MB]

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD5

Experience and Challenges with Electron Cooling of Colliding Ion Beams in RHIC

325

A.V. Fedotov, X. Gu, D. Kayran, J. Kewisch, S. Seletskiy
BNL, Upton, New York, USA

Funding: Work supported by the U.S. Department of Energy.
Electron cooling of ion beams employing rf-accelerated electron bunches was successfully used for the RHIC physics program in 2020 and 2021 and was essential in achieving the required luminosity goals. This presentation will summarize experience and challenges with electron cooling of colliding ion beams in RHIC. We also outline ongoing studies using rf-based electron cooler LEReC.

Slides TUZD5 [1.373 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUZD5

About •

Received ※ 02 August 2022 — Accepted ※ 04 August 2022 — Issue date ※ 14 September 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUZD6

DarkSRF: Using Accelerator Technology to Search for a Dark Photon

S. Posen, A.S. Romanenkopresenter
Fermilab, Batavia, Illinois, USA

Superconducting radio frequency (SRF) cavities have long been used to accelerate beams of charged particles. But their extremely high quality factors >10¹⁰ make them useful in high sensitivity searches for physics beyond the standard model. DarkSRF is a ’light-shining-through-the-wall’ (LSW) experiment in which two SRF cavities are tuned to the same frequency and only one is powered. RF power appearing in the unpowered cavity could be a sign of conversion of photons from the powered cavity into dark photons, and then conversion back into photons. In this contribution, we overview the concept, experimental apparatus, and first results.

Slides TUZD6 [5.398 MB]

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)