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1. Exploring the Quantum Universe: Pathways to Innovation and Discovery in Particle Physics

Author

Asai, Shoji, Ballarino, Amalia, Bose, Tulika, Cranmer, Kyle, Cyr-Racine, Francis-Yan, Demers, Sarah, Geddes, Cameron, Gershtein, Yuri, Heeger, Karsten, Heinemann, Beate, Hewett, JoAnne, Huber, Patrick, Mahn, Kendall, Mandelbaum, Rachel, Maricic, Jelena, Merkel, Petra, Monahan, Christopher, Murayama, Hitoshi, Onyisi, Peter, Palmer, Mark, Raubenheimer, Tor, Sanchez, Mayly, Schnee, Richard, Seidel, Sally, Seo, Seon-Hee, Thaler, Jesse, Touramanis, Christos, Vieregg, Abigail, Weinstein, Amanda, Winslow, Lindley, Yu, Tien-Tien, and Zwaska, Robert

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology, High Energy Physics - Theory
Abstract

This is the report from the 2023 Particle Physics Project Prioritization Panel (P5) approved by High Energy Physics Advisory Panel (HEPAP) on December 8, 2023. The final version was made public on May 8, 2024 and submitted to DOE SC and NSF MPS., Comment: 2-page spread version. The online version is available at https://www.usparticlephysics.org/2023-p5-report/ and the graphics at https://usparticlephysics.org/media-assets-library

Published
2024
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2. Beam Delivery and Beamstrahlung Considerations for Ultra-High Energy Linear Colliders

Author

Barklow, Tim, Gessner, Spencer, Hogan, Mark, Ng, Cho-Kuen, Peskin, Michael, Raubenheimer, Tor, White, Glen, Adli, Erik, Cao, Gevy Jiawei, Lindstrom, Carl A., Sjobak, Kyrre, Barber, Sam, Geddes, Cameron, Formenti, Arianna, Lehe, Remi, Schroeder, Carl, Terzani, Davide, van Tilborg, Jeroen, Vay, Jean-Luc, Zoni, Edoardo, Doss, Chris, Litos, Michael, Lobach, Ihar, Power, John, Swiatlowski, Maximilian, Fedeli, Luca, Vincenti, Henri, Grismayer, Thomas, Vranic, Marija, and Zhang, Wenlong

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

As part of the Snowmass'21 community planning excercise, the Advanced Accelerator Concepts (AAC) community proposed future linear colliders with center-of-mass energies up to 15 TeV and luminosities up to 50$\times10^{34}$ cm$^{-2}$s$^{-1}$ in a compact footprint. In addition to being compact, these machines must also be energy efficient. We identify two challenges that must be addressed in the design of these machines. First, the Beam Delivery System (BDS) must not add significant length to the accelerator complex. Second, beam parameters must be chosen to mitigate beamstrahlung effects and maximize the luminosity-per-power of the machine. In this paper, we review advances in plasma lens technology that will help to reduce the length of the BDS system and we detail new Particle-in-Cell simulation studies that will provide insight into beamstrahlung mitigation techniques. We apply our analysis to both $e^+e^-$ and $\gamma\gamma$ colliders.

Published
2023
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3. Report of the 2021 U.S. Community Study on the Future of Particle Physics (Snowmass 2021) Summary Chapter

Author

Butler, Joel N., Chivukula, R. Sekhar, de Gouvêa, André, Han, Tao, Kim, Young-Kee, Cushman, Priscilla, Farrar, Glennys R., Kolomensky, Yury G., Nagaitsev, Sergei, Yunes, Nicolás, Gourlay, Stephen, Raubenheimer, Tor, Shiltsev, Vladimir, Assamagan, Kétévi A., Quinn, Breese, Elvira, V. Daniel, Gottlieb, Steven, Nachman, Benjamin, Chou, Aaron S., Soares-Santos, Marcelle, Tait, Tim M. P., Narain, Meenakshi, Reina, Laura, Tricoli, Alessandro, Barbeau, Phillip S., Merkel, Petra, Zhang, Jinlong, Huber, Patrick, Scholberg, Kate, Worcester, Elizabeth, Artuso, Marina, Bernstein, Robert H., Petrov, Alexey A., Craig, Nathaniel, Csáki, Csaba, El-Khadra, Aida X., Baudis, Laura, Hall, Jeter, Lesko, Kevin T., Orrell, John L., Gonski, Julia, Psihas, Fernanda, and Simon, Sara M.

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

The 2021-22 High-Energy Physics Community Planning Exercise (a.k.a. ``Snowmass 2021'') was organized by the Division of Particles and Fields of the American Physical Society. Snowmass 2021 was a scientific study that provided an opportunity for the entire U.S. particle physics community, along with its international partners, to identify the most important scientific questions in High Energy Physics for the following decade, with an eye to the decade after that, and the experiments, facilities, infrastructure, and R&D needed to pursue them. This Snowmass summary report synthesizes the lessons learned and the main conclusions of the Community Planning Exercise as a whole and presents a community-informed synopsis of U.S. particle physics at the beginning of 2023. This document, along with the Snowmass reports from the various subfields, will provide input to the 2023 Particle Physics Project Prioritization Panel (P5) subpanel of the U.S. High-Energy Physics Advisory Panel (HEPAP), and will help to guide and inform the activity of the U.S. particle physics community during the next decade and beyond., Comment: 75 pages, 3 figures, 2 tables. This is the first chapter and summary of the full report of the Snowmass 2021 Workshop. This version fixes an important omission from Table 2, adds two references that were not available at the time of the original version, fixes a minor few typos, and adds a small amount of material to section 1.1.3

Published
2023

4. Snowmass 21 Discussions on Future Accelerator HEP Facilities

Author

Gourlay, Stephen, Raubenheimer, Tor, and Shiltsev, Vladimir

Subjects
Physics - Accelerator Physics
Abstract

The US particle physics community planning exercise (a.k.a. Snowmass) is organized every 7 to 9 years to provide a forum for discussions among the entire particle physics community to develop a scientific vision for the future of particle physics in the U.S. and its international partners. The Snowmass 21 Accelerator Frontier activities include discussions on high-energy hadron and lepton colliders, high-intensity beams for neutrino research and for Physics Beyond Colliders, accelerator technologies, science, education and outreach as well as the progress of core accelerator technologies, including RF, magnets, targets and sources. Here we summarize the Snowmass 21 discussions on future HEP accelerator facilities.

Published
2022

5. Report of the Snowmass 2021 Collider Implementation Task Force

Author

Roser, Thomas, Brinkmann, Reinhard, Cousineau, Sarah, Denisov, Dmitri, Gessner, Spencer, Gourlay, Steve, Lebrun, Philippe, Narain, Meenakshi, Oide, Katsunobu, Raubenheimer, Tor, Seeman, John, Shiltsev, Vladimir, Strait, Jim, Turner, Marlene, and Wang, Lian-Tao

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

The Snowmass 2021 Implementation Task Force has been established to evaluate the proposed future accelerator projects for performance, technology readiness, schedule, cost, and environmental impact. Corresponding metrics has been developed for uniform comparison of the proposals ranging from Higgs/EW factories to multi-TeV lepton, hadron and ep collider facilities, based on traditional and advanced acceleration technologies. This report documents the metrics and processes, and presents evaluations of future colliders performed by Implementation Task Force., Comment: 68 pages; Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)

Published
2022
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6. The SLAC Linac to ESA (LESA) Beamline for Dark Sector Searches and Test Beams

Author

Markiewicz, Tom, Raubenheimer, Tor, Toro, Natalia, and team, members of the LESA construction

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

The Linac to End Station A (LESA) beamline is being constructed at SLAC and will provide a near-CW beam of multi-GeV electrons to the SLAC End Station A for experiments in particle physics. The 1st half of LESA is ready for commissioning at the end of FY22 and the full beamline will be operational Q1 FY24. The low-current multi-GeV electron beam is produced parasitically by the superconducting RF (SRF) linac for the LCLS-II/LCLS-II-HE X-ray Free Electron Laser. LESA is designed to host experiments to detect light dark matter such as the Light Dark Matter eXperiment (LDMX) as well as a wide range of other experiments and test beams requiring near-CW electron currents ranging from pA to {\mu}A., Comment: contribution to Snowmass 2021

Published
2022

7. The Role of Low Intrinsic Emittance in Modern Photoinjector Brightness

Author

Pierce, Christopher M., Andorf, Matthew B., Lu, Edmond, Gordon, Matthew, Kim, Young-Kee, Gulliford, Colwyn, Bazarov, Ivan V., Maxson, Jared M., Norvell, Nora P., Dunham, Bruce M., and Raubenheimer, Tor O.

Subjects
Physics - Accelerator Physics
Abstract

Reducing the intrinsic emittance of photocathodes is one of the most promising routes to improving the brightness of electron sources. However, when emittance growth occurs during beam transport (for example, due to space-charge), it is possible that this emittance growth overwhelms the contribution of the photocathode and, thus, in this case source emittance improvements are not beneficial. Using multi-objective genetic optimization, we investigate the role intrinsic emittance plays in determining the final emittance of several space-charge dominated photoinjectors, including those for high repetition rate free electron lasers and ultrafast electron diffraction. We introduce a new metric to predict the scale of photocathode emittance improvements that remain beneficial and explain how additional tuning is required to take full advantage of new photocathode technologies. Additionally, we determine the scale of emittance growth due to point-to-point Coulomb interactions with a fast tree-based space-charge solver. Our results show that in the realistic high brightness photoinjector applications under study, the reduction of thermal emittance to values as low as 50 pm/um (1 meV MTE) remains a viable option for the improvement of beam brightness., Comment: 12 pages, 7 figures

Published
2020
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8. Scientific Opportunities with an X-ray Free-Electron Laser Oscillator

Author

Adams, Bernhard, Aeppli, Gabriel, Allison, Thomas, Baron, Alfred Q. R., Bucksbaum, Phillip, Chumakov, Aleksandr I., Corder, Christopher, Cramer, Stephen P., DeBeer, Serena, Ding, Yuntao, Evers, Jörg, Frisch, Josef, Fuchs, Matthias, Grübel, Gerhard, Hastings, Jerome B., Heyl, Christoph M., Holberg, Leo, Huang, Zhirong, Ishikawa, Tetsuya, Kaldun, Andreas, Kim, Kwang-Je, Kolodziej, Tomasz, Krzywinski, Jacek, Li, Zheng, Liao, Wen-Te, Lindberg, Ryan, Madsen, Anders, Maxwell, Timothy, Monaco, Giulio, Nelson, Keith, Palffy, Adriana, Porat, Gil, Qin, Weilun, Raubenheimer, Tor, Reis, David A., Röhlsberger, Ralf, Santra, Robin, Schoenlein, Robert, Schünemann, Volker, Shpyrko, Oleg, Shvyd'ko, Yuri, Shwartz, Sharon, Singer, Andrej, Sinha, Sunil K., Sutton, Mark, Tamasaku, Kenji, Wille, Hans-Christian, Yabashi, Makina, Ye, Jun, and Zhu, Diling

Subjects
Physics - Instrumentation and Detectors, Physics - Atomic Physics, Physics - Optics
Abstract

An X-ray free-electron laser oscillator (XFELO) is a new type of hard X-ray source that would produce fully coherent pulses with meV bandwidth and stable intensity. The XFELO complements existing sources based on self-amplified spontaneous emission (SASE) from high-gain X-ray free-electron lasers (XFEL) that produce ultra-short pulses with broad-band chaotic spectra. This report is based on discussions of scientific opportunities enabled by an XFELO during a workshop held at SLAC on June 29 - July 1, 2016, Comment: 21 pages, 12 figures

Published
2019

9. An Advanced NCRF Linac Concept for a High Energy e$^+$e$^-$ Linear Collider

Author

Bane, Karl L., Barklow, Timothy L., Breidenbach, Martin, Burkhart, Craig P., Fauve, Eric A., Gold, Alysson R., Heloin, Vincent, Li, Zenghai, Nanni, Emilio A., Nasr, Mamdouh, Oriunno, Marco, Paterson, James McEwan, Peskin, Michael E., Raubenheimer, Tor O., and Tantawi, Sami G.

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

We have explored a concept for an advanced Normal-Conducting Radio-Frequency (NCRF) C-band linear accelerator (linac) structure to achieve a high gradient, high power e$^+$e$^-$ linear collider in the TeV class. This design study represents the first comprehensive investigation for an emerging class of distributed coupling accelerator topology exploring nominal cavity geometries, frequency and temperature of operation. The structure features internal manifolds for distributing RF power separately to each cell, permitting the full structure geometry to be designed for high shunt impedance and low breakdown. Optimized within operational constraints, we find that it is advantageous for the structure to be cooled directly by liquid nitrogen (LN), further increasing the shunt impedance. A crucial part of this design process has been cost optimization, which is largely driven by the cost of peak RF power. The first operation of a distributed coupling structure at cryogenic temperatures and the nominal operating gradient 120 MeV/m is also presented, demonstrating the feasibility of achieving high-gradient performance with a cryogenically-cooled normal-conducting accelerating structure.

Published
2018

10. DASEL: Dark Sector Experiments at LCLS-II

Author

Raubenheimer, Tor, Beukers, Anthony, Fry, Alan, Hast, Carsten, Markiewicz, Thomas, Nosochkov, Yuri, Phinney, Nan, Schuster, Philip, and Toro, Natalia

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

This paper describes the concept for the DArk Sector Experiments at LCLS-II (DASEL) facility which provides a near-CW beam of multi-GeV electrons to the SLAC End Station A for experiments in particle physics. The low-current multi-GeV electron beam is produced parasitically by the superconducting RF linac for the LCLS-II X-ray Free Electron Laser, which is under construction at SLAC. DASEL is designed to host experiments to detect light dark matter such as the Light Dark Matter eXperiment (LDMX) but can be configured to support a wide range of other experiments requiring current ranging from pico-amps to micro-amps.

Published
2018

11. US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report

Author

Battaglieri, Marco, Belloni, Alberto, Chou, Aaron, Cushman, Priscilla, Echenard, Bertrand, Essig, Rouven, Estrada, Juan, Feng, Jonathan L., Flaugher, Brenna, Fox, Patrick J., Graham, Peter, Hall, Carter, Harnik, Roni, Hewett, JoAnne, Incandela, Joseph, Izaguirre, Eder, McKinsey, Daniel, Pyle, Matthew, Roe, Natalie, Rybka, Gray, Sikivie, Pierre, Tait, Tim M. P., Toro, Natalia, Van De Water, Richard, Weiner, Neal, Zurek, Kathryn, Adelberger, Eric, Afanasev, Andrei, Alexander, Derbin, Alexander, James, Antochi, Vasile Cristian, Asner, David Mark, Baer, Howard, Banerjee, Dipanwita, Baracchini, Elisabetta, Barbeau, Phillip, Barrow, Joshua, Bastidon, Noemie, Battat, James, Benson, Stephen, Berlin, Asher, Bird, Mark, Blinov, Nikita, Boddy, Kimberly K., Bondi, Mariangela, Bonivento, Walter M., Boulay, Mark, Boyce, James, Brodeur, Maxime, Broussard, Leah, Budnik, Ranny, Bunting, Philip, Caffee, Marc, Caiazza, Sabato Stefano, Campbell, Sheldon, Cao, Tongtong, Carosi, Gianpaolo, Carpinelli, Massimo, Cavoto, Gianluca, Celentano, Andrea, Chang, Jae Hyeok, Chattopadhyay, Swapan, Chavarria, Alvaro, Chen, Chien-Yi, Clark, Kenneth, Clarke, John, Colegrove, Owen, Coleman, Jonathon, Cooke, David, Cooper, Robert, Crisler, Michael, Crivelli, Paolo, D'Eramo, Francesco, D'Urso, Domenico, Dahl, Eric, Dawson, William, De Napoli, Marzio, De Vita, Raffaella, DeNiverville, Patrick, Derenzo, Stephen, Di Crescenzo, Antonia, Di Marco, Emanuele, Dienes, Keith R., Diwan, Milind, Dongwi, Dongwi Handiipondola, Drlica-Wagner, Alex, Ellis, Sebastian, Ezeribe, Anthony Chigbo, Farrar, Glennys, Ferrer, Francesc, Figueroa-Feliciano, Enectali, Filippi, Alessandra, Fiorillo, Giuliana, Fornal, Bartosz, Freyberger, Arne, Frugiuele, Claudia, Galbiati, Cristian, Galon, Iftah, Gardner, Susan, Geraci, Andrew, Gerbier, Gilles, Graham, Mathew, Gschwendtner, Edda, Hearty, Christopher, Heise, Jaret, Henning, Reyco, Hill, Richard J., Hitlin, David, Hochberg, Yonit, Hogan, Jason, Holtrop, Maurik, Hong, Ziqing, Hossbach, Todd, Humensky, T. B., Ilten, Philip, Irwin, Kent, Jaros, John, Johnson, Robert, Jones, Matthew, Kahn, Yonatan, Kalantarians, Narbe, Kaplinghat, Manoj, Khatiwada, Rakshya, Knapen, Simon, Kohl, Michael, Kouvaris, Chris, Kozaczuk, Jonathan, Krnjaic, Gordan, Kubarovsky, Valery, Kuflik, Eric, Kusenko, Alexander, Lang, Rafael, Leach, Kyle, Lin, Tongyan, Lisanti, Mariangela, Liu, Jing, Liu, Kun, Liu, Ming, Loomba, Dinesh, Lykken, Joseph, Mack, Katherine, Mans, Jeremiah, Maris, Humphrey, Markiewicz, Thomas, Marsicano, Luca, Martoff, C. J., Mazzitelli, Giovanni, McCabe, Christopher, McDermott, Samuel D., McDonald, Art, McKinnon, Bryan, Mei, Dongming, Melia, Tom, Miller, Gerald A., Miuchi, Kentaro, Nazeer, Sahara Mohammed Prem, Moreno, Omar, Morozov, Vasiliy, Mouton, Frederic, Mueller, Holger, Murphy, Alexander, Neilson, Russell, Nelson, Tim, Neu, Christopher, Nosochkov, Yuri, O'Hare, Ciaran, Oblath, Noah, Orrell, John, Ouellet, Jonathan, Pastore, Saori, Paul, Sebouh, Perelstein, Maxim, Peter, Annika, Phan, Nguyen, Phinney, Nan, Pivovaroff, Michael, Pocar, Andrea, Pospelov, Maxim, Pradler, Josef, Privitera, Paolo, Profumo, Stefano, Raggi, Mauro, Rajendran, Surjeet, Randazzo, Nunzio, Raubenheimer, Tor, Regenfus, Christian, Renshaw, Andrew, Ritz, Adam, Rizzo, Thomas, Rosenberg, Leslie, Rubbia, Andre, Rybolt, Ben, Saab, Tarek, Safdi, Benjamin R., Santopinto, Elena, Scarff, Andrew, Schneider, Michael, Schuster, Philip, Seidel, George, Sekiya, Hiroyuki, Seong, Ilsoo, Simi, Gabriele, Sipala, Valeria, Slatyer, Tracy, Slone, Oren, Smith, Peter F, Smolinsky, Jordan, Snowden-Ifft, Daniel, Solt, Matthew, Sonnenschein, Andrew, Sorensen, Peter, Spooner, Neil, Srivastava, Brijesh, Stancu, Ion, Strigari, Louis, Strube, Jan, Sushkov, Alexander O., Szydagis, Matthew, Tanedo, Philip, Tanner, David, Tayloe, Rex, Terrano, William, Thaler, Jesse, Thomas, Brooks, Thorpe, Brianna, Thorpe, Thomas, Tiffenberg, Javier, Tran, Nhan, Trovato, Marco, Tully, Christopher, Tyson, Tony, Vachaspati, Tanmay, Vahsen, Sven, van Bibber, Karl, Vandenbroucke, Justin, Villano, Anthony, Volansky, Tomer, Wang, Guojian, Ward, Thomas, Wester, William, Whitbeck, Andrew, Williams, David A., Wing, Matthew, Winslow, Lindley, Wojtsekhowski, Bogdan, Yu, Hai-Bo, Yu, Shin-Shan, Yu, Tien-Tien, Zhang, Xilin, Zhao, Yue, and Zhong, Yi-Ming

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract

This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017., Comment: 102 pages + references

Published
2017

12. Accelerators for Rare Processes and Physics Beyond Colliders: Report of the AF5 Topical Group to Snowmass 2021

Author

Prebys, E., primary, Milner, Richard, additional, Lamont, Mike, additional, Bernstein, R., additional, Huhr, P., additional, Neuffer, D., additional, Pellimone, F., additional, Pozdeyev, E., additional, Pronskikh, V., additional, Toups, M., additional, Zwaska, R., additional, Barbier, C., additional, Calviani, M., additional, Browder, T., additional, Raubenheimer, Tor, additional, and Semertzidis, Y., additional

Published
2022
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13. Report of the Snowmass 2021 Collider Implementation Task Force

Author

Roser, Thomas, primary, Brinkmann, Reinhard, additional, Cousineau, Sarah, additional, Denisov, Dmitri, additional, Gessner, Spencer, additional, Gourlay, Steve, additional, Lebrun, Philippe, additional, Narain, Meenakshi, additional, Oide, Katsunobu, additional, Raubenheimer, Tor, additional, Seeman, John, additional, Shiltsev, Vladimir, additional, Strait, Jim, additional, Turner, Marlene, additional, and Wang, Lian-Tao, additional

Published
2022
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14. A Beam Driven Plasma-Wakefield Linear Collider: From Higgs Factory to Multi-TeV

Author

Adli, Erik, Delahaye, Jean-Pierre, Gessner, Spencer J., Hogan, Mark J., Raubenheimer, Tor, An, Weiming, Joshi, Chan, and Mori, Warren

Subjects
Physics - Accelerator Physics
Abstract

Plasma wakefield acceleration (PWFA) holds much promise for advancing the energy frontier because it can potentially provide a 1000-fold or more increase in acceleration gradient with excellent power efficiency in respect with standard technologies. Most of the advances in beam-driven plasma wakefield acceleration were obtained by a UCLA/USC/SLAC collaboration working at the SLAC FFTB[ ]. These experiments have shown that plasmas can accelerate and focus both electron and positron high energy beams, and an accelerating gradient in excess of 50 GeV/m can be sustained in an 85 cm-long plasma. The FFTB experiments were essentially proof-of-principle experiments that showed the great potential of plasma accelerators. The FACET[ ] test facility at SLAC will in the period 2012-2016 further study several issues that are directly related to the applicability of PWFA to a high-energy collider, in particular two-beam acceleration where the witness beam experiences high beam loading (required for high efficiency), small energy spread and small emittance dilution (required to achieve luminosity). The PWFA-LC concept presented in this document is an attempt to find the best design that takes advantage of the PWFA, identify the critical parameters to be achieved and eventually the necessary R&D to address their feasibility. It best benefits from the extensive R&D that has been performed for conventional rf linear colliders during the last twenty years, especially ILC[ ] and CLIC[ ], with a potential for a comparably lower power consumption and cost., Comment: Submitted to the proceedings of the Snowmass Process CSS2013. Work supported in part by the U.S. Department of Energy under contract number DE-AC02-76SF00515

Published
2013

15. Calculation of the Coherent Synchrotron Radiation Impedance from a Wiggler

Author

Wu, Juhao, Raubenheimer, Tor, and Stupakov, Gennady

Subjects
Physics - Accelerator Physics
Abstract

Most studies of Coherent Synchrotron Radiation (CSR) have only considered the radiation from independent dipole magnets. However, in the damping rings of future linear colliders, a large fraction of the radiation power will be emitted in damping wigglers. In this paper, the longitudinal wakefield and impedance due to CSR in a wiggler are derived in the limit of a large wiggler parameter $K$. After an appropriate scaling, the results can be expressed in terms of universal functions, which are independent of $K$. Analytical asymptotic results are obtained for the wakefield in the limit of large and small distances, and for the impedance in the limit of small and high frequencies., Comment: 10 pages, 8 figures

Published
2003
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16. Ground Motion Model of the SLAC Site

Author

Seryi, Andrei and Raubenheimer, Tor

Subjects
Physics - Accelerator Physics
Abstract

We present a ground motion model for the SLAC site. This model is based on recent ground motion studies performed at SLAC as well as on historical data. The model includes wave-like, diffusive and systematic types of motion. An attempt is made to relate measurable secondary properties of the ground motion with more basic characteristics such as the layered geological structure of the surrounding earth, depth of the tunnel, etc. This model is an essential step in evaluating sites for a future linear collider., Comment: submitted to XX International Linac Conference

Published
2000

18. R&D for a Soft X-Ray Free Electron Laser Facility

Author

Corlett, John, primary, Attwood, David, additional, Byrd, John, additional, Denes, Peter, additional, Falcone, Roger, additional, Heimann, Phil, additional, Leemans, Wim, additional, Padmore, Howard, additional, Prestemon, Soren, additional, Sannibale, Fernando, additional, Schlueter, Ross, additional, Schroeder, Carl, additional, Staples, John, additional, Venturini, Marco, additional, Warwick, Tony, additional, Wells, Russell, additional, Wilcox, Russell, additional, Zholent, Alexander, additional, Adolphsen, Chris, additional, Arthur, John, additional, Bergmann, Uwe, additional, Cai, Yunhai, additional, Colby, Eric, additional, Dowell, David, additional, Emma, Paul, additional, Fox, John, additional, Frisch, Josef, additional, Galayda, John, additional, Hettel, Robert, additional, Huang, Zhirong, additional, Phinney, Nan, additional, Rabedeau, Tom, additional, Raubenheimer, Tor, additional, Reis, David, additional, Schmerge, John, additional, Stohr, Joachim, additional, Stupakov, Gennady, additional, White, Bill, additional, and Xiang, Dao, additional

Published
2009
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19. Science and Technology of Future Light Sources: A White Paper

Author

Bergmann, Uwe, primary, Corlett, John, additional, Dierker, Steve, additional, Falcone, Roger, additional, Galayda, John, additional, Gibson, Murray, additional, Hastings, Jerry, additional, Hettel, Bob, additional, Hill, John, additional, Hussain, Zahid, additional, Kao, Chi-Chang, additional, Kirz, a= Janos, additional, Long, Gabrielle, additional, McCurdy, Bill, additional, Raubenheimer, Tor, additional, Sannibale, Fernando, additional, Seeman, John, additional, Shen, Z.-X., additional, Shenoy, Gopal, additional, Schoenlein, Bob, additional, and Shen, Qun, additional

Published
2009
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20. Science and Technology of Future Light Sources

Author

Bergmann, Uwe, primary, Corlett, John, additional, Dierker, Steve, additional, Falcone, Roger, additional, Galayda, John, additional, Gibson, Murray, additional, Hastings, Jerry, additional, Hettel, Bob, additional, Hill, John, additional, Hussain, Zahid, additional, Kao, Chi-Chang, additional, Kirz, Janos, additional, Long, Danielle, additional, McCurdy, Bill, additional, Raubenheimer, Tor, additional, Sannibale, Fernando, additional, Seeman, John, additional, Shen, Z. -X., additional, Schenoy, Gopal, additional, Schoenlein, Bob, additional, Shen, Qun, additional, Stephenson, Brian, additional, Stohr, Joachim, additional, and Zholents, Alexander, additional

Published
2009
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21. Scientific Needs for Future X-ray Sources in the U.S. -- A White Paper

Author

Falcone, Roger, primary, Stohr, Joachim, additional, Bergmann, Uwe, additional, Corlett, John, additional, Galayda, John, additional, Hastings, Jerry, additional, Hettel, Bob, additional, Hussain, Zahid, additional, Kirz, Janos, additional, McCurdy, Bill, additional, Raubenheimer, Tor, additional, Sannibale, Fernando, additional, Seeman, John, additional, Shen, Z.-X., additional, Schoenlein, Bob, additional, and Zholents, Alexander, additional

Published
2008
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22. Fermilab Steering Group Report

Author

Beier, Eugene, primary, Butler, Joel, additional, Dawson, Sally, additional, Edwards, Helen, additional, Himel, Thomas, additional, Holmes, Stephen, additional, Kim, Young-Kee, additional, Lankford, Andrew, additional, McGinnis, David, additional, Nagaitsev, Sergei, additional, and Raubenheimer, Tor, additional

Published
2007
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