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1. Report of the Topical Group on Electroweak Precision Physics and Constraining New Physics for Snowmass 2021

Author

Belloni, Alberto, Freitas, Ayres, Tian, Junping, Apyan, Juan Alcaraz Maestre Aram, Azartash-Namin, Bianca, Azzurri, Paolo, Banerjee, Swagato, Beyer, Jakob, Bhattacharya, Saptaparna, de Blas, Jorge, Blondel, Alain, Britzger, Daniel, Dam, Mogens, Du, Yong, d'Enterria, David, Fujii, Keisuke, Grojean, Christophe, Gu, Jiayin, Han, Tao, Hildreth, Michael, Irles, Adrián, Janot, Patrick, Jeans, Daniel, Kawale, Mayuri, Khoda, Elham E, Lane, Samuel, Lewis, Ian, Liang, Zhijun, List, Jenny, Liu, Zhen, Ma, Yang, Miralles, Victor, Mizuno, Takahiro, Mwewa, Chilufya, Narain, Meenakshi, Nedic, Luka, Neubauer, Mark S., Paranjape, Chaitanya, Peskin, Michael, Petti, Roberto, Pleier, Marc-André, Poeschl, Roman, Potamianos, Karolos, Reina, Laura, Reuter, Jürgen, Robens, Tania, Roloff, Philipp, Roney, Michael, Ruan, Manqi, Ruiz, Richard, Schuy, Alex, Shepherd, William, Stolarski, Daniel, Stupak, John, Suehara, Taikan, Tenchini, Roberto, Tricoli, Alessandro, Vryonidou, Eleni, Vos, Marcel, Waits, Connor, Wilson, Graham, Wu, Yongcheng, Xie, Keping, Yang, Siqi, Yang, Tianyi, Yumino, Keita, Zhou, Shuang-Yong, and Zhu, Junjie

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

The precise measurement of physics observables and the test of their consistency within the standard model (SM) are an invaluable approach, complemented by direct searches for new particles, to determine the existence of physics beyond the standard model (BSM). Studies of massive electroweak gauge bosons (W and Z bosons) are a promising target for indirect BSM searches, since the interactions of photons and gluons are strongly constrained by the unbroken gauge symmetries. They can be divided into two categories: (a) Fermion scattering processes mediated by s- or t-channel W/Z bosons, also known as electroweak precision measurements; and (b) multi-boson processes, which include production of two or more vector bosons in fermion-antifermion annihilation, as well as vector boson scattering (VBS) processes. The latter categories can test modifications of gauge-boson self-interactions, and the sensitivity is typically improved with increased collision energy. This report evaluates the achievable precision of a range of future experiments, which depend on the statistics of the collected data sample, the experimental and theoretical systematic uncertainties, and their correlations. In addition it presents a combined interpretation of these results, together with similar studies in the Higgs and top sector, in the Standard Model effective field theory (SMEFT) framework. This framework provides a model-independent prescription to put generic constraints on new physics and to study and combine large sets of experimental observables, assuming that the new physics scales are significantly higher than the EW scale., Comment: 55 pages; Report of the EF04 topical group for Snowmass 2021; v2: few typos corrected and references added

Published
2022

2. The International Linear Collider: Report to Snowmass 2021

Author

Aryshev, Alexander, Behnke, Ties, Berggren, Mikael, Brau, James, Craig, Nathaniel, Freitas, Ayres, Gaede, Frank, Gessner, Spencer, Gori, Stefania, Grojean, Christophe, Heinemeyer, Sven, Jeans, Daniel, Kruger, Katja, List, Benno, List, Jenny, Liu, Zhen, Michizono, Shinichiro, Miller, David W., Moult, Ian, Murayama, Hitoshi, Nakada, Tatsuya, Nanni, Emilio, Nojiri, Mihoko, Padamsee, Hasan, Perelstein, Maxim, Peskin, Michael E., Poeschl, Roman, Posen, Sam, Robson, Aidan, Strube, Jan, Suehara, Taikan, Tian, Junping, Titov, Maxim, Vos, Marcel, White, Andrew, Wilson, Graham, Yokoya, Kaoru, Zarnecki, Aleksander Filip, Adachi, Ichiro, Agashe, Kaustubh, Jovin, Tatjana Agatonovic, Aihara, Hiroaki, Altmannshofer, Wolfgang, Alves, Daniele, Anguiano, Justin, Aoki, Ken-Ichi, Aoki, Masato, Aoki, Toshihiro, Aoki, Yumi, Arai, Yasuo, Araki, Hayato, Asada, Haruka, Asai, Kento, Asai, Shoji, Attie, David, Baer, Howard, Bagger, Jonathan, Bai, Yang, Bailey, Ian, Barrue, Ricardo, Bartoldus, Rainer, Barzi, Emanuela, Basso, Matthew, Bauerdick, Lothar, Baum, Sebastian, Bellerive, Alain, Belomestnykh, Sergey, Antequera, Jorge Berenguer, Beyer, Jakob, Bhat, Pushpalatha, Bilki, Burak, Black, Kevin, Bloom, Kenneth, Bodwin, Geoffrey, Boisvert, Veronique, Boran, Fatma, Boudry, Vincent, Boughezal, Radja, Boveia, Antonio, Bozovic-Jelisavcic, Ivanka, Brient, Jean-Claude, Brodsky, Stanley, Brunetti, Laurent, Buesser, Karsten, Bulyak, Eugene, Burrows, Philip N., Burt, Graeme C., Cai, Yunhai, Cairo, Valentina, Canepa, Anadi, Celiberto, Francesco Giovanni, Cenni, Enrico, Chacko, Zackaria, Chaikovska, Iryna, Checchin, Mattia, Chen, Lisong, Chen, Thomas Y., Cheng, Hsin Chia, Cho, Gi-Chol, Choudhary, Brajesh, Clarke, Jim, Cline, James, Co, Raymond, Cohen, Timothy, Colas, Paul, Damerell, Chris, Das, Arindam, Dasu, Sridhara, Dawson, Sally, de Blas, Jorge, de Lima, Carlos Henrique, Deandrea, Aldo, Dehmelt, Klaus, Delayen, Jean, Demarteau, Marcel, Denisov, Dmitri, Dermisek, Radovan, Dieguez, Angel, Dohmae, Takeshi, Dopke, Jens, Dort, Katharina, Du, Yong, Dudar, Bohdan, Dutta, Bhaskar, Dutta, Juhi, Einhaus, Ulrich, Elsen, Eckhard, Endo, Motoi, Eremeev, Grigory, Eren, Engin, Erler, Jens, Esarey, Eric, Everett, Lisa, Golfe, Angeles Faus, Garcia, Marcos Fernandez, Foster, Brian, Fourches, Nicolas, Fouz, Mary-Cruz, Fujii, Keisuke, Fujimoto, Junpei, Torregrosa, Esteban Fullan, Furukawa, Kazuro, Fusayasu, Takahiro, Fuster, Juan, Ganjour, Serguei, Gao, Yuanning, Gaur, Naveen, Geng, Rongli, Georgi, Howard, Gherghetta, Tony, Goldstein, Joel, Goncalves, Dorival, Gonski, Julia, Gonzalo, Tomas, Goto, Takeyoshi, Goto, Toru, Graf, Norman, Grames, Joseph, Grannis, Paul, Gray, Lindsey, Grohsjean, Alexander, Gu, Jiayin, Guler, Yalcin, Gutierrez, Phillip, Haba, Junji, Haber, Howard, Hallford, John, Hamaguchi, Koichi, Han, Tao, Hara, Kazuhiko, Harada, Daisuke, Hashimoto, Koji, Hashino, Katsuya, Hayashi, Masahito, Heinrich, Gudrun, Hidaka, Keisho, Higuchi, Takeo, Hinode, Fujio, Hioki, Zenro, Hirose, Minoru, Hiroshima, Nagisa, Hisano, Junji, Hollik, Wolfgang, Homiller, Samuel, Hong, Sungwoo, Hook, Anson, Horii, Yasuyuki, Hoshina, Hiroki, Hristova, Ivana, Huitu, Katri, Hyakutake, Yoshifumi, Iijima, Toru, Ikematsu, Katsumasa, Ilderton, Anton, Inami, Kenji, Irles, Adrian, Ishikawa, Akimasa, Ishiwata, Koji, Ito, Hayato, Ivanov, Igor, Iwamoto, Sho, Iwamoto, Toshiyuki, Iwasaki, Masako, Iwashita, Yoshihisa, Jia, Haoyi, Morales, Fabricio Jimenez, Joshi, Prakash, Jung, Sunghoon, Kacarevic, Goran, Kagan, Michael, Kakizaki, Mitsuru, Kalinowski, Jan, Kaminski, Jochen, Kanaya, Kazuyuki, Kanemura, Shinya, Kanno, Hayato, Kano, Yuya, Kashiwagi, Shigeru, Kato, Yukihiro, Kawada, Nanami, Kawada, Shin-ichi, Kawagoe, Kiyotomo, Khoze, Valery, Kichimi, Hiromichi, Kim, Doojin, Kitahara, Teppei, Kitano, Ryuichiro, Klamka, Jan, Komamiya, Sachio, Kong, K. C., Konomi, Taro, Kotera, Katsushige, Kou, Emi, Kravchenko, Ilya, Kubo, Kiyoshi, Kubo, Takayuki, Kumaoka, Takuya, Kumar, Ashish, Kumar, Nilanjana, Kunath, Jonas, Kundu, Saumyen, Kunitomo, Hiroshi, Kurata, Masakazu, Kuriki, Masao, Kusenko, Alexander, Lagouri, Theodota, Lankford, Andrew J., Lastovicka-Medin, Gordana, Diberder, Francois Le, Lee, Claire, Liepe, Matthias, Linacre, Jacob, Liptak, Zachary, Lomte, Shivani, Low, Ian, Ma, Yang, Maalouf, Hani, MacFarlane, David, Madison, Brendon, Madlener, Thomas, Maeda, Tomohito, Malek, Paul, Mandal, Sanjoy, Markiewicz, Thomas, Marshall, John, Martens, Aurelien, Martin, Victoria, Martinello, Martina, Rivero, Celso Martinez, Maru, Nobuhito, Matheson, John, Matsumoto, Shigeki, Matsunaga, Hiroyuki, Matsuo, Yutaka, Mawatari, Kentarou, Mbagwu, Johnpaul, McIntosh, Peter, McKeown, Peter, Meade, Patrick, Mekala, Krzysztof, Merkel, Petra, Mihara, Satoshi, Miralles, Víctor, Lopez, Marcos Miralles, Mishima, Go, Mishima, Satoshi, Mistlberger, Bernhard, Mitov, Alexander, Miyabayashi, Kenkichi, Miyamoto, Akiya, Mohanty, Gagan, Monaco, Laura, Mondragon, Myriam, Montgomery, Hugh E., Moortgat-Pick, Gudrid, Morange, Nicolas, Llacer, María Moreno, Moretti, Stefano, Mori, Toshinori, Morii, Toshiyuki, Moroi, Takeo, Morrissey, David, Nachman, Benjamin, Nagano, Kunihiro, Nakajima, Jurina, Nakamura, Eiji, Narita, Shinya, Nath, Pran, Nelson, Timothy, Newbold, David, Niki, Atsuya, Nishimura, Yasuhiro, Nishiyama, Eisaku, Nomura, Yasunori, Nowak, Kacper, Nozaki, Mitsuaki, de Vera, María Teresa Nunez Pardo, Ochoa, Ines, Ogata, Masahito, Ohashi, Satoru, Ohta, Hikaru, Ohta, Shigemi, Ohuchi, Norihito, Oide, Hideyuki, Okada, Nobuchika, Okada, Yasuhiro, Okawa, Shohei, Okayasu, Yuichi, Okugawa, Yuichi, Okugi, Toshiyuki, Okui, Takemichi, Okuyama, Yoshitaka, Omet, Mathieu, Omori, Tsunehiko, Ono, Hiroaki, Onoe, Tomoki, Ootani, Wataru, Otono, Hidetoshi, Ozawa, Shuhei, Griso, Simone Pagan, Papa, Alessandro, Paparella, Rocco, Park, Eun-Kyung, Perez, Gilad, Perez-Lorenzana, Abdel, Peters, Yvonne, Petriello, Frank, Piedra, Jonatan, Porod, Werner, Potter, Christopher, Price, Alan, Radkhorrami, Yasser, Reina, Laura, Reuter, Juergen, Richard, Francois, Riemann, Sabine, Rimmer, Robert, Rizzo, Thomas, Robens, Tania, Ruber, Roger, Jimeno, Alberto Ruiz, Saeki, Takayuki, Saha, Ipsita, Saito, Tomoyuki, Sakaguchi, Makoto, Sakai, Tadakatsu, Sakaki, Yasuhito, Sakurai, Kodai, Salvatico, Riccardo, Salvatore, Fabrizio, San, Yik Chuen, Sandick, Pearl, Sanuki, Tomoyuki, Sasikumar, Kollassery Swathi, Schaefer, Oliver, Schaefer, Ruth, Schneekloth, Uwe, Schoerner-Sadenius, Thomas, Schroeder, Carl, Schuster, Philip, Schwartzman, Ariel, Schwienhorst, Reinhard, Sefkow, Felix, Seiya, Yoshihiro, Sekiguchi, Motoo, Sekizawa, Kazuyuki, Senyo, Katsumi, Sert, Hale, Sertore, Danielev, Settles, Ronald, Shafi, Qaisar, Shahdara, Tetsuo, Haghi, Barmak Shams Es, Sharma, Ashish, Shelton, Jessie, Shepherd-Themistocleous, Claire, Shibuya, Hiroto, Shidara, Tetsuo, Shimomura, Takashi, Shindou, Tetsuo, Shoji, Yutaro, Shu, Jing, Sievers, Ian, Simon, Frank, Singh, Rajeev, Soreq, Yotam, Stanitzki, Marcel, Stapnes, Steinar, Steinhebel, Amanda, Stupak, John, Su, Shufang, Suekane, Fumihiko, Sugamoto, Akio, Sugawara, Yuji, Sugimoto, Satoru, Sugimoto, Yasuhiro, Sugiyama, Hiroaki, Sumino, Yukinari, Sundrum, Raman, Suzuki, Atsuto, Suzuki, Shin, Swiatlowski, Maximilian, Tait, Tim M. P., Takahashi, Shota, Takahashi, Tohru, Takeshita, Tohru, Takeuchi, Michihisa, Takubo, Yosuke, Tanabe, Tomohiko, Tanedo, Philip, Tanimoto, Morimitsu, Tao, Shuichiro, Tata, Xerxes, Tauchi, Toshiaki, Taylor, Geoffrey, Terada, Takahiro, Terunuma, Nobuhiro, Thaler, Jesse, Thea, Alessandro, Tillinger, Finn, Timmermans, Jan, Tobioka, Kohsaku, Toda, Kouichi, Tokiyasu, Atsushi, Toma, Takashi, Torndal, Julie, Tosun, Mehmet, Tsai, Yu-Dai, Tseng, Shih-Yen, Tsumura, Koji, Tuckler, Douglas, Uchida, Yoshiki, Uchiyama, Yusuke, Ueda, Daiki, Ukegawa, Fumihiko, Umemori, Kensei, Urakawa, Junji, Vallee, Claude, Vega, Roberto, Velasco, Liliana, Verdu-Andres, Silvia, Vernieri, Caterina, Vila, Anna, Alvarez, Ivan Vila, Vossebeld, Joost, Vsrms, Raghava, Vukasinovic, Natasa, Wackeroth, Doreen, Wakida, Moe, Wang, Liantao, Washio, Masakazu, Watanabe, Takashi, Watson, Nigel, Watts, Gordon, Weiglein, Georg, Wells, James D., Wenskat, Marc, Westhoff, Susanne, White, Glen, Williams, Ciaran, Willocq, Stephane, Wing, Matthew, Winter, Alasdair, Winter, Marc, Wu, Yongcheng, Xie, Keping, Xu, Tao, Yakovlev, Vyacheslav, Yamada, Shuei, Yamamoto, Akira, Yamamoto, Hitoshi, Yamamoto, Kei, Yamamoto, Yasuchika, Yamanaka, Masato, Yamashita, Satoru, Yamatani, Masahiro, Yamatsu, Naoki, Yasui, Shigehiro, Yoda, Takuya, Yonamine, Ryo, Yoshihara, Keisuke, Yoshioka, Masakazu, Yoshioka, Tamaki, Yuasa, Fukuko, Yumino, Keita, Zerwas, Dirk, Zheng, Ya-Juan, Zhou, Jia, Zhu, Hua Xing, Zobov, Mikhail, and Zomer, Fabian

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

The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This document brings the story of the ILC up to date, emphasizing its strong physics motivation, its readiness for construction, and the opportunity it presents to the US and the global particle physics community., Comment: 356 pages, Large pdf file (40 MB) submitted to Snowmass 2021; v2 references to Snowmass contributions added, additional authors; v3 references added, some updates, additional authors

Published
2022

3. Interplay of Beam Polarisation and Systematic Uncertainties in Electroweak Precision Measurements at Future $e^+ e^-$ Colliders

Author

Beyer, Jakob and List, Jenny

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

Future high-energy $\textrm{e}^+\textrm{e}^-$ colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties on electroweak precision observables and triple gauge couplings are expected to improve by orders of magnitude over current measurements. This provides a new challenge in accurately assessing and minimizing the impact of experimental systematic uncertainties. Beam polarization may hold a unique potential to isolate and determine the size of systematic effects. So far, studies have mainly focused on the statistical improvements from beam polarisation. This study aims to assess, for the first time, its impact on systematic uncertainties. A combined fit of precision observables, such as chiral fermion couplings and anomalous triple gauge couplings, together with experimental systematic effects is performed on generator-level differential distribution of 2-fermion and 4-fermion final-states. Different configurations of available beam polarisations and luminosities are tested with and without systematic effects, and will be discussed in the context of the existing projections on fermion and gauge boson couplings from detailed experimental simulations., Comment: 5 pages, 2 figures, Contribution to the 24th International Spin Symposium

Published
2022
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4. Interplay of beam polarisation and systematic uncertainties at future $e^+e^-$ colliders

Author

Beyer, Jakob and List, Jenny

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

Future high-energy $e^+e^-$ colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties on electroweak precision observables and triple gauge couplings are expected to improve by orders of magnitude over current measurements. This provides a new challenge in accurately assessing and minimising the impact of systematic uncertainties. Beam polarisation may hold a unique potential to isolate and determine the size of systematic effects. So far, studies have mainly focused on the statistical improvements from beam polarisation. This study aims to assess, for the first time, its impact on systematic uncertainties. A combined fit of precision observables, such as chiral fermion couplings and anomalous triple gauge couplings, together with experimental systematic effects is performed on generator-level differential distribution of 2-fermion and 4-fermion final-states. Different configurations of available beam polarisations and luminosities are tested with and without systematic effects, and will be discussed in the context of the existing projections on fermion and gauge boson couplings from detailed experimental simulations., Comment: 6 pages, 3 figures, Contribution to conference proceedings EPS-HEP2021

Published
2021

5. Isolating systematic effects with beam polarisation at $e^+e^-$ colliders

Author

Beyer, Jakob and List, Jenny

Subjects
High Energy Physics - Experiment
Abstract

Future high-energy $e^+e^-$ colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties are expected to improve by orders of magnitude over current measurements. This provides a new challenge in accurately assessing and minimizing systematic uncertainties. Beam polarisation may hold a unique potential to isolate and determine the size of systematic effects. This study aims to set this hypothesis by setting up a combined fit of systematic effect and electroweak observables that can test different configurations of available beam polarisations and luminosities. A framework for this fit is developed. In a first test it fits the luminosity and polarisation with external constraints to 2-fermion and 4-fermion differential distributions. An implementation of a first systematic - the muon acceptance - shows consistent behaviour in this framework. This lays the groundwork for testing the interplay of systematic and physical effects in the presence or absence of beam polarisation., Comment: 9 pages, 7 figures, Talk presented at the International Workshop on Future Linear Colliders (LCWS2021), 15-18 March 2021. C21-03-15.1

Published
2021

6. ILD benchmark: Quartic Gauge Couplings

Author

Beyer, Jakob and List, Jenny

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

The quartic gauge coupling (QGC) of the electroweak interaction can be used as a probe for physics beyond the Standard Model and has been previously measured at the Large Hadron Collider. However, to achieve sensitivity to small deviations the couplings must be measured with precision beyond the capability of a hadron collider. An electron-positron collider with center-of-mass energies in the TeV range can precisely probe the QGC and test a variety of models. The International Linear Collider is such a collider project with a possible extension to $1\,$TeV. In this note the critical reconstruction aspects of a QGC analysis in the vector boson scattering (VBS) channel of $e^+e^- \rightarrow \nu\bar{\nu} q\bar{q} q\bar{q}$ at $\sqrt{s}=1\,$TeV are identified for the International Large Detector. Generator level information from the event generator and simulation is used to gain access to influence of separate reconstruction effects. The separation of hadronic $WW$ and $ZZ$ decays by their invariant mass is chosen to quantify the strength of the effects. In the current simple reconstruction scheme the main obstacles are observed to be the removal of beam backgrounds, the jet clustering, and semi-leptonic decays within jets. At high center-of-mass energies of the VBS interaction jet clustering is found to no longer be a limiting factor. Points of optimizations are laid out for these aspects. In the case of semi-leptonic decays, proof-of-principal tests for corrections are performed and found to be challenging. A full analysis which includes the extraction of limits on anomalous QGCs remains open. Sensitivities similar to those achieved in generator level studies with approximated detector effects are expected., Comment: 20 pages, 16 figures (34 with subfigures)

Published
2020

7. Precision measurements of Triple Gauge Couplings at future electron-positron colliders

Author

Beyer, Jakob, Karl, Robert, and List, Jenny

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

A precise knowledge of charged Triple Gauge Couplings (cTGCs) is important for the determination of Higgs couplings and for constraining physics beyond the Standard Model. Future high-energy $e^{+}e^{-}$ colliders could have a significantly improved sensitivity to anomalous cTGCs. The fit framework presented here extracts cTGCs in parallel with chiral cross sections and beam polarisation parameters. It demonstrates that cTGCs can be measured with precision in the $10^{-3}-10^{-4}$ range. A strong dependence of the cTGC sensitivity on the available luminosities and polarisations is observed., Comment: 7 pages, 2 figures (6 when counting subfigures), Talk presented at the International Workshop on Future Linear Colliders (LCWS2019), Sendai, Japan, 28 October - 1 November, 2019. C19-10-28

Published
2020

8. VBSCan Thessaloniki 2018 Workshop Summary

Author

Bellan, Riccardo, Beyer, Jakob, Bittrich, Carsten, Boldrini, Giacomo, Brivio, Ilaria, Bruni, Lucrezia Stella, Franzosi, Diogo Buarque, Charlot, Claude, Ciulli, Vitaliano, Covarelli, Roberto, Giljanovic, Duje, Gonella, Giulia, Govoni, Pietro, Gras, Philippe, Grossi, Michele, Herrmann, Tim, Kalinowski, Jan, Karlberg, Alexander, Kallonen, Kimmo, Kasimi, Eirini, Topaksu, Aysel Kayis, Kersevan, Borut, Kirschenmann, Henning, Kobel, Michael, Kordas, Konstantinos, Leisos, Antonios, Lelas, Damir, Lenzi, Piergiulio, Li, Ang, Lohwasser, Kristin, Lorenzo-Martinez, Narei, Manjarres, Joany, Mapelli, Dario, Marantis, Alexandros, Marchegiani, Matteo, Mascellani, Anna, Maznas, Ioannis, Mildner, Hannes, Mozer, Matthias Ulrich, Neukum, Max, Novak, Jakob, Ortona, Giacomo, Ozdemir, Kadri, Pellen, Mathieu, Pelliccioli, Giovanni, Petridou, Chariclia, Plätzer, Simon, Quaggio, Christian, Rauch, Michael, Rebuzzi, Daniela, Reuter, Jürgen, Sampsonidou, Despoina, Schramm, Steven, Siodmok, Andrzej, Slawinska, Magdalena, Szleper, Michał, Tarabini, Alessandro, Thorburn, Connor Innes, Todt, Stefanie, Tzamarias, Spyridon E., Tsirigotis, Apostolos, Valsecchi, Davide, Wuest, Lilly, and Zaro, Marco

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

This document reports the first year of activity of the VBSCan COST Action network, as summarised by the talks and discussions happened during the VBSCan Thessaloniki 2018 workshop. The VBSCan COST action is aiming at a consistent and coordinated study of vector-boson scattering from the phenomenological and experimental point of view, for the best exploitation of the data that will be delivered by existing and future particle colliders., Comment: Editors: Lucrezia Stella Bruni, Roberto Covarelli, Pietro Govoni, Piergiulio Lenzi, Narei Lorenzo-Martinez, Joany Manjarres, Matthias Ulrich Mozer, Giacomo Ortona, Mathieu Pellen, Daniela Rebuzzi, Magdalena Slawinska, Marco Zaro. Proceedings for the second annual meeting of the VBSCan COST action

Published
2019

10. Achieving electroweak precision at future electron-positron colliders

Author

Beyer, Jakob, Gallo-Voss, Elisabetta, and List, Jenny

Abstract

Dissertation, Universität Hamburg, 2022; 279 pp. (2023). = Dissertation, Universität Hamburg, 2022, The particle physics community is currently discussing the next large-scale electron-positron collider experiment, with a major interest in the Higgs production threshold around 250 GeV. Multiple proposals have emerged for such a machine, differing in machine and detector designs, as well as energy stages and luminosities. Striving for a machine with the best possible precisions requires both an optimization of each proposal as well a careful examination of the differences between them. The optimization of the individual proposals needs dedicated studies based on detailed simulation of the experiment. Such studies can point out the most critical aspects in the precision, such as e.g. specific steps in the event reconstruction. For understanding the differences between the proposals, a generic approach can be insightful. By neglecting some details and focusing on specific differences, the trade-offs of a choice of one specific collider become clearer. This is especially relevant for the 250 GeV energy stage, which is common to most proposals and central to the physics program. This work contains two studies, corresponding to the two tasks above. The first is a full-simulation study of vector boson scattering (VBS) in the hadronic final state at the 1 TeV stage of the International Linear Collider. This study focuses on the different reconstruction aspects in hadronic final states, which have the highest cross-sections of all W/Z decay modes. A second, more extensive study performs electroweak fits using a generic 250 GeV e+ e− collider with varying beam polarisation and luminosity scenarios. The trade-off between luminosity and availability of beam polarisation is one of the key differences between the proposed colliders. This study investigates how these choices impact the precision on physical and systematic parameters - including the polarisations themselves - and the correlations between physical parameters and systematic effects. It further directly includes a detector systematic to see whether beam polarisation leads to a smaller impact of chirality-independent systematic effects. The body of this thesis gives an overview of the current theory and future collider landscapes, and describes both studies in full detail, including the datasets, methods, and findings. The VBS study finds that the clustering of hadronic final states, the removal of background particles in forward jets, and semi-leptonic decays within jets all significantly degrade the resolution. High level reconstruction remains a limiting factor of electroweak precision, and future studies can look into improving the above named reconstruction aspects to improve the precision in hadronic events. The study of electroweak fits finds that beam polarisation gives access to chiral observables, which allows assumption-free measurement of fermion pair production parameters, and adds significant sensitivity to the measurement of triple gauge couplings. In this context, higher luminosities can only make up for a lack of beam polarisation when introducing a strong set of assumptions. The measurement of beam polarisation in parallel to electroweak parameters with only one polarised beam leads to strong correlations of polarisations with physical parameters, which disappear when both beams are polarised. Finally, the explicitly included detector systematic does not affect any chiral observables, and the fit can extract the exact shape of the systematic effect with high precision. These results show that a careful examination of the impact of beam polarisation is necessary in order to understand the qualitative and quantitative impacts on the achievable precision. Especially the impact on systematic uncertainties will require further studies. For the discussion among different collider proposals, beam polarisation will play a key role and will shape the future of electroweak precision measurements.

Published
2023

11. Determination of non-perturbative corrections in diphoton production at the LHC using iterative methods

Author

Beyer, Jakob

Subjects
Particle Physics - Phenomenology
Abstract

This thesis investigates non-perturbative corrections for diphoton events from pp collisions at the LHC from parton level to hadron level. Iterative unfolding based on Bayes’ theorem, as proposed by D’Agostini, is used on fake diphoton parton level samples. The results are compared to bin-by-bin unfolding. Influences of the diphoton identification cut parameters on the results are tested. Diphoton events are simulated using Sherpa 2.2.0 and analyzed using Rivet 2.4.1. Unfolding was performed using the ROOT framework RooUnfold. Non-perturbative corrections are primarily observed as efficiencies. Smearing effects are low for the investigated observables. The unfolding results show improved accuracy of iterative unfolding for one or two iterations over bin-by-bin corrections. This is not influenced when varying the cut parameters in the diphoton identification analysis. However, limitations of comparing the unfolded results to the hadron level distributions of independent test samples show, that further investigation is necessary.

Published
2022

12. Interplay of beam polarisation and systematic uncertainties at future e+e- colliders

Author

Beyer, Jakob and List, Jenny

Subjects
positron: polarized beam, polarized beam [electron], electron: polarized beam, High Energy Physics::Lattice, coupling: gauge, (3gauge boson) [coupling], FOS: Physical sciences, fermion: chiral, annihilation [electron positron], chiral [fermion], electron positron: annihilation, High Energy Physics - Experiment, gauge [coupling], High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), coupling: (3gauge boson), final state [fermion], coupling: anomaly, coupling [gauge boson], beam: polarization, statistical [error], Monte Carlo [numerical calculations], electron positron: colliding beams, High Energy Physics - Phenomenology, error: statistical, coupling [fermion], colliding beams [electron positron], gauge boson: coupling, polarized beam [positron], anomaly [coupling], numerical calculations: Monte Carlo, fermion: final state, fermion: coupling, polarization [beam]
Abstract

Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021) - Sissa Medialab Trieste, Italy, 2022. - ISBN - doi:10.22323/1.398.0484 European Physical Society Conference on High Energy Physics (EPS-HEP2021), EPS-HEP2021, Hamburg, Germany, 26 Jul 2021 - 30 Jul 2021; Sissa Medialab Trieste, Italy, 1967077 6 pp. (2021). doi:10.22323/1.398.0484, Future high-energy e+e− colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties on electroweak precision observables and triple gauge couplings are expected to improve by orders of magnitude over current measurements. This provides a new challenge in accurately assessing and minimising the impact of systematicuncertainties. Beam polarisation may hold a unique potential to isolate and determine the size of systematic effects. So far, studies have mainly focused on the statistical improvements from beam polarisation. This study aims to assess, for the first time, its impact on systematic uncertainties. A combined fit of precision observables, such as chiral fermion couplings and anomalous triple gauge couplings, together with experimental systematic effects is performed on generator-level differential distribution of 2-fermion and 4-fermion final-states. Different configurations of available beam polarisations and luminosities are tested with and without systematic effects, and will be discussed in the context of the existing projections on fermion and gauge boson couplings fromdetailed experimental simulations., Published by Sissa Medialab Trieste, Italy

Published
2022
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13. Interplay of Beam Polarisation and Systematic Uncertainties in Electroweak Precision Measurements at Future e$^+$ e$^−$ Colliders

Author

Beyer, Jakob and List, Jenny

Subjects
electroweak interaction: precision measurement, High Energy Physics::Lattice, FOS: Physical sciences, electron positron: scattering, effect [polarization], ILC Coll, scattering [electron positron], High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), CERN CLIC, precision measurement [electroweak interaction], ddc:530, electron: beam, polarization: effect, coupling [gauge boson], beam: polarization, electron positron: colliding beams, fermion: pair production, beam [electron], High Energy Physics - Phenomenology, coupling [fermion], colliding beams [electron positron], gauge boson: coupling, pair production [fermion], fermion: coupling, polarization [beam]
Abstract

Proceedings of the 24th International Spin Symposium 24th International Symposium on Spin Physics, (SPIN2021), Matsue, Japan, 18 Oct 2021 - 22 Oct 2021; JPS conference proceedings 37, 020502 (2022). doi:10.7566/JPSCP.37.020502, Future high-energy e$^+$e$^−$ colliders will provide some of the most precise tests of the Standard Model. Statistical uncertainties on electroweak precision observables and triple gauge couplings are expected to improve by orders of magnitude over current measurements. This provides a new challenge in accurately assessing and minimizing the impact of experimental systematic uncertainties. Beam polarization may hold a unique potential to isolate and determine the size of systematic effects. So far, studies have mainly focused on the statistical improvements from beam polarisation. This study aims to assess, for the first time, its impact on systematic uncertainties. A combined fit of precision observables, such as chiral fermion couplings and anomalous triple gauge couplings, together with experimental systematic effects is performed on generator-level differential distribution of 2- and 4-fermion final-states. Different configurations of available beam polarisations and luminosities are tested with and without systematic effects, and will be discussed in the context of the existing projections on fermion and gauge boson couplings from detailed experimental simulations., Published by The Physical Society of Japan, Tokyo

Published
2022
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15. Quantifying the effects of beam polarisation on charged triple gauge couplings

Author

Beyer, Jakob and List, Jenny

Abstract

Snowmass2021 Preparatory Joint Sessions on "Open questions and News Ideas", DESY, 7 Jul 2020 - 8 Jul 2020, Charged triple gauge couplings (cTGCs) describe potential deviations from the Standard Model in the coupling of two $W$ bosons to a $Z$ boson or a photon. These couplings may interfere with the extraction of Higgs properties. Future $e^+e^-$ colliders need to measure these cTGCs with high precision to fully exploit the potential of their Higgs program. Current proposals for $e^+e^-$ colliders vary in many aspects, most notably in their energy, luminosities and beam polarisations. Of those, the energy determines the relevant physics and the luminosity trivially scales the statistical precision. Beam polarisation refers to the preferred direction of the spin in the beam particles. A dedicated magnet setup can flip the direction of a spin with non-zero polarisation. Electroweak physics depends on the chirality and therefore the spin of the colliding particles. This flipping of the spin changes the allowed interactions. Both reducible and irreducible backgrounds can be suppressed by choosing the appropriate polarisation combination. The cTGC measurement is performed in the production of $W$ bosons and highly sensitive to this effect. While the physics changes when flipping the polarisations, the systematic effects remain the same. Beam polarisation may therefore provide a direct handle on systematic uncertainties in any measurement. This study aims to quantify these effects of that a polarised beam may offer. An extraction of cTGCs is performed together with a measurement of beam polarisations and 2-fermion parameters on generator level differential distributions. The fit is planned to be extended to include systematic effects that are correlated between the different processes. A collider with polarised beams may achieve a qualitatively different measurement of cTGCs and other electroweak parameters. The extent to which polarisation may reduce systematics and provide access to electroweak physics needs to be clarified.

Published
2020
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16. The ILD detector at the ILC

Author

Abramowicz, Halina, Agatonovic Jovin, Tatjana, Alonso, Oscar, Amjad, Mohammad Sohail, An, Fenfen, Andricek, Ladislav, Anduze, Marc, Anguiano, Justin, Antonov, Evgeny, Aoki, Yumi, Arteche, Fernando, Attié, David, Büscher, Volker, Bach, Ole, Balagura, Vladislav, Baudot, Jérome, Begunov, Vadim, Behera, Subhasish, Behnke, Ties, Bellerive, Alain, Belver, Daniel, Benhammou, Yan, Berggren, Mikael, Berriaud, Christophe, Bertolone, Gregory, Besançon, Marc, Besson, Auguste, Beyer, Jakob, Bezshyyko, Oleg, Bhattacharya, Deb Sankar, Bhattacharya, Purba, Bocharnikov, Vladimir, Boronat, Marca, Borysov, Oleksandr, Bosley, Robert, Boudry, Vincent, Boumedine, Djamel, Bourgeois, Christian, Bozovic Jelisavcic, Ivanka, Breton, Dominique, Brianne, Eldwan, Brient, Jean-Claude, Briggl, Konrad, Buesser, Karsten, Callier, Stephane, Calvo Alamillo, Enrique, Carrillo, Camilo, Catalán, Ana, Chadeeva, Marina, Chau, Phi, Chera, Madalina, Chetverushkin, Boris, Chrzaszcz, Marcin, Claus, Gilles, Colas, Paul, Colledani, Claude, Combaret, Christophe, Cornat, Rémi, Corriveau, Francois, Cvach, Jaroslav, Danilov, Mikhail, de La Taille, Christophe, Deguchi, Yuto, Desch, Klaus, Dieguez, Angel, Diener, Ralf, Dixit, Madhu, Dong, Mingyi, Dorokhov, Andrei, Dozière, Guy, Drutskoy, Alexey, Dulucq, Frederic, Edy, Evelyne, Einhaus, Ulrich, El Bitar, Ziad, Elkhalii, Amine, Emberger, Lorenz, Esperante, Danniel, Eté, Rémi, Fang, Yaquan, Fedorchuk, Oleksiy, Firlej, Miroslaw, Fiutowski, Tomasz, Fleck, Ivor, Fouz, María Cruz, Fujii, Kazuki, Fujii, Keisuke, Fullana, Esteban, Fusayasu, Takahiro, Fuster, Juan, Göttlicher, Peter, Gadow, Karsten, Gaede, Frank, Gallas, Alexandre, Ganjour, Serguei, García, Ignacio, Cabrera, Hector García, Garillot, Guillaume, Garutti, Erika, Gastaldi, Franck, Ghislain, Patrick, Goffe, Mathieu, Gomis, Pablo, Gong, Wenxuan, Gonnin, Alexandre, Goswami, Deepanjali, Goto, Kiichi, Graf, Christian, Gregor, Ingrid-Maria, Grenier, Gerald, Guillaumat, Rémi, Habermehl, Moritz, Hagge, Lars, Hartbrich, Oskar, Hartjes, Fred, Henschel, Hans, Heuchel, Daniel, Hidalgo, Salvador, Himmi, Abdelkader, Hu, Tao, Hu-Guo, Christine, Ianigro, Jean-Christophe Tibor, Idzik, Marek, Irles, Adrian, Ishihara, Hiroki, Ishikawa, Akimasa, Jönsson, Leif, Jaaskelainen, Kimmo, Jeans, Daniel, Jeglot, Jimmy, Kacarevic, Goran, Kachel, Maciej, Kajiwara, Shogo, Kalinowski, Jan, Kaminski, Jochen, Kamiya, Yoshio, Karl, Robert, Kato, Yu, Kato, Yukihiro, Kawada, Shin-ichi, Kawagoe, Kiyotomo, Khan, Sameen A, Kleinwort, Claus, Kluit, Peter, Kobayashi, Makoto, Koffmane, Christian, Komamiya, Sachio, Korpachev, Sergey, Kotera, Katsushige, Krämer, Uwe, Krüger, Katja, Kunath, Jonas, Kurata, Masakazu, Kurca, Tibor, Kvasnicka, Jirí, Lacour, Didier, Laktineh, Imad, Lange, Wolfgang, Lehtinen, Suvi-Leena, Lesiak, Tadeusz, Levy, Aharon, Levy, Itamar, Li, Bo, Li, Gang, Ligtenberg, Cornelis, List, Benno, List, Jenny, Liu, Linghui, Liu, Yong, Liu, Zhenan, Lohmann, Wolfgang, Louzir, Marc, Lu, Shaojun, Lundberg, Bjoern, Maalmi, Jihane, Magniette, Frédéric, Majumdar, Nayana, Makida, Yasuhiro, Malek, Paul, Marín, Jesús, Marshall, John, Martens, Stephan, Martin-Chassard, Gisele, Masetti, Lucia, Masuda, Ryunosuke, Mathez, Herve, Matsuda, Takeshi, McDonaldS, Kirk T, Mikhaylov, Dmitry, Mirabito, Laurent, Miroshin, Sergey, Mitaroff, Winfried, Miyamoto, Akiya, Mizuno, Takahiro, Mjönmark, Ulf, Mogi, Takanori, Moortgat-Pick, Gudrid, Morel, Frédéric, Moreno, Sergio, Mori, Toshinori, Moron, Jakub, Moya, David, Mukhopadhyay, Supratik, Munwes, Yonathan, Nanni, Jérome, Napoly, Olivier, Narita, Shinya, Navarrete, Jose Javier, Negishi, Kentaro, Ninkovic, Jelena, Noori Shirazi, Amir, Ogawa, Tomohisa, Okamura, Takahiro, Omori, Tsunehiko, Ono, Hiroaki, Ootani, Wataru, Oskarsson, Anders, Ostermann, Lennart, Ouyang, Qun, Pöschl, Roman, Parraud, Jean-Marc, Pawlik, Bogdan, Pellegrini, Giulio, Perello, Martin, Perez, Alejandro, Pham, Hung, Piedrafita, Javier, Pierre-Emile, Thomas, Pingault, Antoine, Pinto, Olin Lyod, Polák, Ivo, Popova, Elena, Poulose, Poulose, Pradas, Alvaro, Prahl, Volker, Price, Tony, Provenza, Ambra, Pelayo, Jesús Puerta, Qi, Huirong, Radkhorrami, Yasser, Raux, Ludovic, Raven, Gerhard, Reinecke, Mathias, Richard, Francois, Richter, Rainer, Riemann, Sabine, Robles Manzano, Maria Soledad, Rogan, Christopher, Rolph, Jack, Ros, Eduardo, Rosmanitz, Anna, Royon, Christophe, Ruan, Manqi, Ruiz-Jimeno, Alberto, Sasikumar, Swathi Kollassery, Saveliev, Andrey, Saveliev, Valery, Schäfer, Oliver, Schmitt, Christian, Schneekloth, Uwe, Schoerner-Sadenius, Thomas, Schultz-Coulon, Hans-Christian, Schuwalow, Sergej, Sefkow, Felix, Seguin-Moreau, Nathalie, Sekiya, Izumi, Settles, Ronald, Shekhtman, L, Shen, Wei, Shiraz, Ryousuke, Shoji, Aiko, Simon, Frank, Sinram, Klaus, Smiljanic, Ivan, Specht, Matthieu, Stromhagen, Richard, Sudo, Yuji, Suehara, Taikan, Sugimoto, Yasuhiro, Sugiyama, Akira, Sun, Zhihong, Swientek, Krzysztof, Takahashi, Tohru, Takeshita, Tohru, Tamaya, Yukinaru, Tanabe, Tomohiko, Tauchi, Toshiaki, Telnov, Valery, Terlecki, Pzremyslaw, Thiebault, Alice, Tian, Junping, Timmermans, Jan, Titov, Maxim, Tran, Huong Lan, Tread, Reima, Tsionou, Dimitra, Tsuji, Naoki, Tuchming, Boris, Tytgat, Michael, Uesugi, Yuto, Uozumi, Satoru, Valin, Isabelle, Vallée, Claude, van der Graaf, Harry, Van Der Kolk, Naomi, van Doren, Brian, Verdugo de Osa, Antonio, Vidal, Guillem, Videau, Henri, Vila, Iván, Villarrejo, Miguel Angel, Volkov, Denis, Vos, Marcel, Vukasinovic, Natasa, Wang, Yan, Watanabe, Takashi, Watson, Nigel, Werthenbach, Ulrich, Wilson, Graham W, Wing, Matthew, Winter, Alasdair, Winter, Marc, Wojtoń, Tomasz, Yamashita, Satoru, Yoshioka, Tamaki, Yu, Boxiang, Yu, Dan, Yuan, Zhenxiong, Yumino, Keita, Zarnecki, Aleksander Filip, Zeitnitz, Christian, Zerwas, Dirk, Zhao, Hang, Zhao, Jingzhou, Zhao, Ruiguang, Zhao, Yüe, Zhu, Hongbo, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ILD

Subjects
detector: technology, Physics::Instrumentation and Detectors, ILD detector, site, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Accelerator Physics, High Energy Physics::Experiment, tracking detector, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ILC Coll, detector: design, activity report
Abstract

The International Large Detector, ILD, is a detector concept which has been developed for the electron-positron collider ILC. The detector has been optimized for precision physics in a range of energies between 90 GeV and 1 TeV. ILD features a high precision, large volume combined silicon and gaseous tracking system, together with a high granularity calorimeter, all inside a 3.5 T solenoidal magnetic field. The paradigm of particle flow has been the guiding principle of the design of ILD. In this document the required performance of the detector, the proposed implementation and the readiness of the different technologies needed for the implementation are discussed. This is done in the framework of the ILC collider proposal, now under consideration in Japan, and includes site specific aspects needed to build and operate the detector at the proposed ILC site in Japan.

Published
2019

17. VBSCan Thessaloniki 2018 Workshop Summary

Author

Karlberg, Alexander, Bellan, Riccardo, Beyer, Jakob, Bittrich, Carsten, et al, and University of Zurich

Subjects
530 Physics, 10192 Physics Institute
Published
2019

18. VBSCan Thessaloniki 2018 Workshop Summary

Author

Karlberg, Alexander; https://orcid.org/0000-0003-0422-5891, Bellan, Riccardo, Beyer, Jakob, Bittrich, Carsten, et al, Karlberg, Alexander; https://orcid.org/0000-0003-0422-5891, Bellan, Riccardo, Beyer, Jakob, Bittrich, Carsten, and et al

Abstract

This document reports the first year of activity of the VBSCan COSTAction network, as summarised by the talks and discussions hap-pened during the VBSCan Thessaloniki 2018 workshop. The VB-SCan COST action is aiming at a consistent and coordinated studyof vector-boson scattering from the phenomenological and experi-mental point of view, for the best exploitation of the data that will bedelivered by existing and future particle colliders.

Published
2019

19. Measuring Vector Boson Scattering at the future International Linear Collider

Author

Beyer, Jakob, Kobel, Michael, and List, Jenny

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

Masterarbeit, Technische Universität Dresden, 2018; 90 pp. (2018). doi:10.3204/PUBDB-2018-05085 = Masterarbeit, Technische Universität Dresden, 2018, Vector boson scattering (VBS) is considered a well-motivated target in the search for physics beyond the Standard Model (BSM). Setting stringent limits on BSM physics inthe Higgs and electroweak sector requires precision measurements of VBS. This is best done in the clean and controlled environment at high-energy electron-positron colliders.In this work, the sensitivity of the International Linear Collider (ILC) to VBS in hadronic final states is studied at √s = 1 TeV in the International Large Detector (ILD). Datasets from full detector simulations are used for this study.A key aspect of this analysis is the separation of the WW and ZZ final state. In the hadronic final state, this is done primarily through reconstructed boson masses. Themass peaks of the WW and ZZ final states are found to be well separated, but inconsistencies with previous studies are observed. Problems in the final state reconstruction are identified to originate from heavy jet reconstruction as well as jet clustering.Neutrino corrections for heavy quark jets are investigated. A promising approach based on the average kinematics in semi-leptonic decays is identified.The peak separation is tested for two versions of the ILD - a large and a small model - and found to not be visibly influenced.First steps towards a VBS analysis in an EFT framework are taken. No optimization of the cut analysis or application of corrections to heavy jets are done in this step, but are identified as important aspects of future analyses. Sensitive observables are extracted for reconstructed WW and ZZ signal regions. Significances of S/√B = 104 for WW final state events and 40 for ZZ events are observed.Assumptions made in recent theory-level studies which predict a sensitivity between 2 and 4 times better than current LHC analyses are confirmed to be roughly valid.

Published
2018

20. VBS search at the ILC

Author

Beyer, Jakob, Kobel, Michael, and List, Jenny

Abstract

2nd VBSCan Annual Meeting, Thessaloniki, Greece, 19 Jun 2018 - 21 Jun 2018

Published
2018
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23. Separation of hadronic WW/ZZ decays at the ILC - Research Practice Presentation

Author

Beyer, Jakob, Kobel, Michael, and List, Jenny

Abstract

Verteidigung der Wissenschaftlichen Arbeits-Phase, Dresden, Institut für Kern- und Teilchenphysik (IKTP) - TU Dresden, Germany, 23 Apr 2018 - 23 Apr 2018, Electroweak precision measurements at an e+e- collider are the next step in testing the Standard Model - and complementary to the LHC. Such measurements can be provided at the future International Linear Collider (ILC). Its polarized electron and positron beams, the precise event reconstruction using state-of-the-art detectors as well as the excellent theoretical calculability present an ideal environment for this enterprise. The baseline design of the ILC provides a center-of-mass energy of 250GeV but extensions up to 1TeV are possible. With such an extension additional important physics measurements, e.g.\ of the quartic gauge coupling, could be performed. At the ILC, these studies can include the dominant hadronic decay modes of the W and Z due to the low QCD background. Even VBS-like signatures like e+e- →vv WW / vv ZZ are then accessible in their hadronic final states, allowing for a significant increase in signal events. For such measurements the separability of the W and Z decays to two jets is important and constitutes a benchmark for the detectors.A study of this separation power at International Large Detector is performed in the case of diboson (WW/ZZ)+vv events at the center of mass energy of 1 TeV ILC.

Published
2018
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24. Vector Boson Scattering in $\nu\nu$ + 4q

Author

List, Jenny and Beyer, Jakob

Subjects
genetic structures, sense organs, respiratory system, behavioral disciplines and activities, eye diseases
Abstract

ILD Benchmarking Days, Arlington, UTA, USA, 19 Oct 2018 - 21 Oct 2018

Published
2018
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26. Report of the Topical Group on Electroweak Precision Physics and Constraining New Physics for Snowmass 2021

Author

Belloni, Alberto, Freitas, Ayres, Tian, Junping, Alcaraz Maestre, Juan, Apyan, Aram, Azartash-Namin, Bianca, Azzurri, Paolo, Banerjee, Swagato, Beyer, Jakob, Bhattacharya, Saptaparna, Blas, Jorge, Blondel, Alain, Britzger, Daniel, Dam, Mogens, Du, Yong, D Enterria, David, Fujii, Keisuke, Grojean, Christophe, Gu, Jiayin, Han, Tao, Hildreth, Michael, Irles, Adrián, Janot, Patrick, Jeans, Daniel, Kawale, Mayuri, Khoda, Elham E., Lane, Samuel, Lewis, Ian, Liang, Zhijun, List, Jenny, Liu, Zhen, Ma, Yang, Víctor Miralles, Mizuno, Takahiro, Mwewa, Chilufya, Narain, Meenakshi, Nedic, Luka, Neubauer, Mark S., Paranjape, Chaitanya, Peskin, Michael, Petti, Roberto, Pleier, Marc-André, Poeschl, Roman, Potamianos, Karolos, Reina, Laura, Reuter, Jürgen, Robens, Tania, Roloff, Philipp, Roney, Michael, Ruan, Manqi, Ruiz, Richard, Schuy, Alex, Shepherd, William, Stolarski, Daniel, Stupak, John, Suehara, Taikan, Tenchini, Roberto, Tricoli, Alessandro, Vryonidou, Eleni, Vos, Marcel, Waits, Connor, Wilson, Graham, Wu, Yongcheng, Xie, Keping, Yang, Siqi, Yang, Tianyi, Yumino, Keita, Zhou, Shuang-Yong, and Zhu, Junjie

Subjects
High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), hep-ex, FOS: Physical sciences, hep-ph, Particle Physics - Experiment, High Energy Physics - Experiment, Particle Physics - Phenomenology
Abstract

The precise measurement of physics observables and the test of their consistency within the standard model (SM) are an invaluable approach, complemented by direct searches for new particles, to determine the existence of physics beyond the standard model (BSM). Studies of massive electroweak gauge bosons (W and Z bosons) are a promising target for indirect BSM searches, since the interactions of photons and gluons are strongly constrained by the unbroken gauge symmetries. They can be divided into two categories: (a) Fermion scattering processes mediated by s- or t-channel W/Z bosons, also known as electroweak precision measurements; and (b) multi-boson processes, which include production of two or more vector bosons in fermion-antifermion annihilation, as well as vector boson scattering (VBS) processes. The latter categories can test modifications of gauge-boson self-interactions, and the sensitivity is typically improved with increased collision energy. This report evaluates the achievable precision of a range of future experiments, which depend on the statistics of the collected data sample, the experimental and theoretical systematic uncertainties, and their correlations. In addition it presents a combined interpretation of these results, together with similar studies in the Higgs and top sector, in the Standard Model effective field theory (SMEFT) framework. This framework provides a model-independent prescription to put generic constraints on new physics and to study and combine large sets of experimental observables, assuming that the new physics scales are significantly higher than the EW scale., 55 pages; Report of the EF04 topical group for Snowmass 2021; v2: few typos corrected and references added

27. The International Linear Collider: Report to Snowmass 2021

Author

Aryshev, Alexander, Behnke, Ties, Berggren, Mikael, Brau, James, Craig, Nathaniel, Freitas, Ayres, Gaede, Frank, Gessner, Spencer, Gori, Stefania, Grojean, Christophe, Heinemeyer, Sven, Jeans, Daniel, Kruger, Katja, List, Benno, List, Jenny, Liu, Zhen, Michizono, Shinichiro, Miller, David W., Moult, Ian, Murayama, Hitoshi, Nakada, Tatsuya, Nanni, Emilio, Nojiri, Mihoko, Padamsee, Hasan, Perelstein, Maxim, Peskin, Michael E., Poeschl, Roman, Posen, Sam, Robson, Aidan, Strube, Jan, Suehara, Taikan, Tian, Junping, Titov, Maxim, Vos, Marcel, White, Andrew, Wilson, Graham, Yokoya, Kaoru, Zarnecki, Aleksander Filip, Adachi, Ichiro, Agashe, Kaustubh, Jovin, Tatjana Agatonovic, Aihara, Hiroaki, Altmannshofer, Wolfgang, Alves, Daniele, Anguiano, Justin, Aoki, Ken-Ichi, Aoki, Masato, Aoki, Toshihiro, Aoki, Yumi, Arai, Yasuo, Araki, Hayato, Asada, Haruka, Asai, Kento, Asai, Shoji, Attie, David, Baer, Howard, Bagger, Jonathan, Bai, Yang, Bailey, Ian, Barrue, Ricardo, Bartoldus, Rainer, Barzi, Emanuela, Basso, Matthew, Bauerdick, Lothar, Baum, Sebastian, Bellerive, Alain, Belomestnykh, Sergey, Antequera, Jorge Berenguer, Beyer, Jakob, Bhat, Pushpalatha, Bilki, Burak, Black, Kevin, Bloom, Kenneth, Bodwin, Geoffrey, Boisvert, Veronique, Boran, Fatma, Boudry, Vincent, Boughezal, Radja, Boveia, Antonio, Bozovic-Jelisavcic, Ivanka, Brient, Jean-Claude, Brodsky, Stanley, Brunetti, Laurent, Buesser, Karsten, Bulyak, Eugene, Burrows, Philip N., Burt, Graeme C., Cai, Yunhai, Cairo, Valentina, Canepa, Anadi, Celiberto, Francesco Giovanni, Cenni, Enrico, Chacko, Zackaria, Chaikovska, Iryna, Checchin, Mattia, Chen, Lisong, Chen, Thomas Y., Cheng, Hsin Chia, Cho, Gi-Chol, Choudhary, Brajesh, Clarke, Jim, Cline, James, Co, Raymond, Cohen, Timothy, Colas, Paul, Damerell, Chris, Das, Arindam, Dasu, Sridhara, Dawson, Sally, de Blas, Jorge, de Lima, Carlos Henrique, Deandrea, Aldo, Dehmelt, Klaus, Delayen, Jean, Demarteau, Marcel, Denisov, Dmitri, Dermisek, Radovan, Dieguez, Angel, Dohmae, Takeshi, Dopke, Jens, Dort, Katharina, Du, Yong, Dudar, Bohdan, Dutta, Bhaskar, Dutta, Juhi, Einhaus, Ulrich, Elsen, Eckhard, Endo, Motoi, Eremeev, Grigory, Eren, Engin, Erler, Jens, Esarey, Eric, Everett, Lisa, Golfe, Angeles Faus, Garcia, Marcos Fernandez, Foster, Brian, Fourches, Nicolas, Fouz, Mary-Cruz, Fujii, Keisuke, Fujimoto, Junpei, Torregrosa, Esteban Fullan, Furukawa, Kazuro, Fusayasu, Takahiro, Fuster, Juan, Ganjour, Serguei, Gao, Yuanning, Gaur, Naveen, Geng, Rongli, Georgi, Howard, Gherghetta, Tony, Goldstein, Joel, Goncalves, Dorival, Gonski, Julia, Gonzalo, Tomas, Goto, Takeyoshi, Goto, Toru, Graf, Norman, Grames, Joseph, Grannis, Paul, Gray, Lindsey, Grohsjean, Alexander, Gu, Jiayin, Guler, Yalcin, Gutierrez, Phillip, Haba, Junji, Haber, Howard, Hallford, John, Hamaguchi, Koichi, Han, Tao, Hara, Kazuhiko, Harada, Daisuke, Hashimoto, Koji, Hashino, Katsuya, Hayashi, Masahito, Heinrich, Gudrun, Hidaka, Keisho, Higuchi, Takeo, Hinode, Fujio, Hioki, Zenro, Hirose, Minoru, Hiroshima, Nagisa, Hisano, Junji, Hollik, Wolfgang, Homiller, Samuel, Hong, Sungwoo, Hook, Anson, Horii, Yasuyuki, Hoshina, Hiroki, Hristova, Ivana, Huitu, Katri, Hyakutake, Yoshifumi, Iijima, Toru, Ikematsu, Katsumasa, Ilderton, Anton, Inami, Kenji, Irles, Adrian, Ishikawa, Akimasa, Ishiwata, Koji, Ito, Hayato, Ivanov, Igor, Iwamoto, Sho, Iwamoto, Toshiyuki, Iwasaki, Masako, Iwashita, Yoshihisa, Jia, Haoyi, Morales, Fabricio Jimenez, Joshi, Prakash, Jung, Sunghoon, Kacarevic, Goran, Kagan, Michael, Kakizaki, Mitsuru, Kalinowski, Jan, Kaminski, Jochen, Kanaya, Kazuyuki, Kanemura, Shinya, Kanno, Hayato, Kano, Yuya, Kashiwagi, Shigeru, Kato, Yukihiro, Kawada, Nanami, Kawada, Shin-ichi, Kawagoe, Kiyotomo, Khoze, Valery, Kichimi, Hiromichi, Kim, Doojin, Kitahara, Teppei, Kitano, Ryuichiro, Klamka, Jan, Komamiya, Sachio, Kong, K. C., Konomi, Taro, Kotera, Katsushige, Kou, Emi, Kravchenko, Ilya, Kubo, Kiyoshi, Kubo, Takayuki, Kumaoka, Takuya, Kumar, Ashish, Kumar, Nilanjana, Kunath, Jonas, Kundu, Saumyen, Kunitomo, Hiroshi, Kurata, Masakazu, Kuriki, Masao, Kusenko, Alexander, Lagouri, Theodota, Lankford, Andrew J., Lastovicka-Medin, Gordana, Diberder, Francois Le, Lee, Claire, Liepe, Matthias, Linacre, Jacob, Liptak, Zachary, Lomte, Shivani, Low, Ian, Ma, Yang, Maalouf, Hani, MacFarlane, David, Madison, Brendon, Madlener, Thomas, Maeda, Tomohito, Malek, Paul, Mandal, Sanjoy, Markiewicz, Thomas, Marshall, John, Martens, Aurelien, Martin, Victoria, Martinello, Martina, Rivero, Celso Martinez, Maru, Nobuhito, Matheson, John, Matsumoto, Shigeki, Matsunaga, Hiroyuki, Matsuo, Yutaka, Mawatari, Kentarou, Mbagwu, Johnpaul, McIntosh, Peter, McKeown, Peter, Meade, Patrick, Mekala, Krzysztof, Merkel, Petra, Mihara, Satoshi, Miralles, Víctor, Lopez, Marcos Miralles, Mishima, Go, Mishima, Satoshi, Mistlberger, Bernhard, Mitov, Alexander, Miyabayashi, Kenkichi, Miyamoto, Akiya, Mohanty, Gagan, Monaco, Laura, Mondragon, Myriam, Montgomery, Hugh E., Moortgat-Pick, Gudrid, Morange, Nicolas, Llacer, María Moreno, Moretti, Stefano, Mori, Toshinori, Morii, Toshiyuki, Moroi, Takeo, Morrissey, David, Nachman, Benjamin, Nagano, Kunihiro, Nakajima, Jurina, Nakamura, Eiji, Narita, Shinya, Nath, Pran, Nelson, Timothy, Newbold, David, Niki, Atsuya, Nishimura, Yasuhiro, Nishiyama, Eisaku, Nomura, Yasunori, Nowak, Kacper, Nozaki, Mitsuaki, de Vera, María Teresa Nunez Pardo, Ochoa, Ines, Ogata, Masahito, Ohashi, Satoru, Ohta, Hikaru, Ohta, Shigemi, Ohuchi, Norihito, Oide, Hideyuki, Okada, Nobuchika, Okada, Yasuhiro, Okawa, Shohei, Okayasu, Yuichi, Okugawa, Yuichi, Okugi, Toshiyuki, Okui, Takemichi, Okuyama, Yoshitaka, Omet, Mathieu, Omori, Tsunehiko, Ono, Hiroaki, Onoe, Tomoki, Ootani, Wataru, Otono, Hidetoshi, Ozawa, Shuhei, Griso, Simone Pagan, Papa, Alessandro, Paparella, Rocco, Park, Eun-Kyung, Perez, Gilad, Perez-Lorenzana, Abdel, Peters, Yvonne, Petriello, Frank, Piedra, Jonatan, Porod, Werner, Potter, Christopher, Price, Alan, Radkhorrami, Yasser, Reina, Laura, Reuter, Juergen, Richard, Francois, Riemann, Sabine, Rimmer, Robert, Rizzo, Thomas, Robens, Tania, Ruber, Roger, Jimeno, Alberto Ruiz, Saeki, Takayuki, Saha, Ipsita, Saito, Tomoyuki, Sakaguchi, Makoto, Sakai, Tadakatsu, Sakaki, Yasuhito, Sakurai, Kodai, Salvatico, Riccardo, Salvatore, Fabrizio, San, Yik Chuen, Sandick, Pearl, Sanuki, Tomoyuki, Sasikumar, Kollassery Swathi, Schaefer, Oliver, Schaefer, Ruth, Schneekloth, Uwe, Schoerner-Sadenius, Thomas, Schroeder, Carl, Schuster, Philip, Schwartzman, Ariel, Schwienhorst, Reinhard, Sefkow, Felix, Seiya, Yoshihiro, Sekiguchi, Motoo, Sekizawa, Kazuyuki, Senyo, Katsumi, Sert, Hale, Sertore, Danielev, Settles, Ronald, Shafi, Qaisar, Shahdara, Tetsuo, Haghi, Barmak Shams Es, Sharma, Ashish, Shelton, Jessie, Shepherd-Themistocleous, Claire, Shibuya, Hiroto, Shidara, Tetsuo, Shimomura, Takashi, Shindou, Tetsuo, Shoji, Yutaro, Shu, Jing, Sievers, Ian, Simon, Frank, Singh, Rajeev, Soreq, Yotam, Stanitzki, Marcel, Stapnes, Steinar, Steinhebel, Amanda, Stupak, John, Su, Shufang, Suekane, Fumihiko, Sugamoto, Akio, Sugawara, Yuji, Sugimoto, Satoru, Sugimoto, Yasuhiro, Sugiyama, Hiroaki, Sumino, Yukinari, Sundrum, Raman, Suzuki, Atsuto, Suzuki, Shin, Swiatlowski, Maximilian, Tait, Tim M. P., Takahashi, Shota, Takahashi, Tohru, Takeshita, Tohru, Takeuchi, Michihisa, Takubo, Yosuke, Tanabe, Tomohiko, Tanedo, Philip, Tanimoto, Morimitsu, Tao, Shuichiro, Tata, Xerxes, Tauchi, Toshiaki, Taylor, Geoffrey, Terada, Takahiro, Terunuma, Nobuhiro, Thaler, Jesse, Thea, Alessandro, Tillinger, Finn, Timmermans, Jan, Tobioka, Kohsaku, Toda, Kouichi, Tokiyasu, Atsushi, Toma, Takashi, Torndal, Julie, Tosun, Mehmet, Tsai, Yu-Dai, Tseng, Shih-Yen, Tsumura, Koji, Tuckler, Douglas, Uchida, Yoshiki, Uchiyama, Yusuke, Ueda, Daiki, Ukegawa, Fumihiko, Umemori, Kensei, Urakawa, Junji, Vallee, Claude, Vega, Roberto, Velasco, Liliana, Verdu-Andres, Silvia, Vernieri, Caterina, Vila, Anna, Alvarez, Ivan Vila, Vossebeld, Joost, Vsrms, Raghava, Vukasinovic, Natasa, Wackeroth, Doreen, Wakida, Moe, Wang, Liantao, Washio, Masakazu, Watanabe, Takashi, Watson, Nigel, Watts, Gordon, Weiglein, Georg, Wells, James D., Wenskat, Marc, Westhoff, Susanne, White, Glen, Williams, Ciaran, Willocq, Stephane, Wing, Matthew, Winter, Alasdair, Winter, Marc, Wu, Yongcheng, Xie, Keping, Xu, Tao, Yakovlev, Vyacheslav, Yamada, Shuei, Yamamoto, Akira, Yamamoto, Hitoshi, Yamamoto, Kei, Yamamoto, Yasuchika, Yamanaka, Masato, Yamashita, Satoru, Yamatani, Masahiro, Yamatsu, Naoki, Yasui, Shigehiro, Yoda, Takuya, Yonamine, Ryo, Yoshihara, Keisuke, Yoshioka, Masakazu, Yoshioka, Tamaki, Yuasa, Fukuko, Yumino, Keita, Zerwas, Dirk, Zheng, Ya-Juan, Zhou, Jia, Zhu, Hua Xing, Zobov, Mikhail, Zomer, Fabian, HEP, INSPIRE, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), École polytechnique (X), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ILC International Development Team

Subjects
Accelerator Physics (physics.acc-ph), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], hep-ex, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], FOS: Physical sciences, [PHYS.PHYS.PHYS-ACC-PH] Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], hep-ph, ILC Coll, Accelerators and Storage Rings, High Energy Physics - Experiment, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], accelerator, technology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics - Accelerator Physics, accelerator: technology, activity report, accelerator: design, Particle Physics - Experiment, Particle Physics - Phenomenology, physics.acc-ph
Abstract

The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our current understanding of particle physics. It is based on a proven accelerator technology. Its experiments will challenge the Standard Model of particle physics and will provide a new window to look beyond it. This document brings the story of the ILC up to date, emphasizing its strong physics motivation, its readiness for construction, and the opportunity it presents to the US and the global particle physics community., Comment: 356 pages, Large pdf file (40 MB) submitted to Snowmass 2021; v2 references to Snowmass contributions added, additional authors; v3 references added, some updates, additional authors

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28. VBSCan Thessaloniki 2018 Workshop Summary

Author

Bellan, Riccardo, Beyer, Jakob, Bittrich, Carsten, Boldrini, Giacomo, Brivio, Ilaria, Bruni, Lucrezia Stella, Buarque Franzosi, Diogo, Charlot, Claude, Ciulli, Vitaliano, Covarelli, Roberto, Giljanovic, Duje, Gonella, Giulia, Govoni, Pietro, Gras, Philippe, Grossi, Michele, Herrmann, Tim, Kalinowski, Jan, Karlberg, Alexander, Kallonen, Kimmo, Kasimi, Eirini, Kayis Topaksu, Aysel, Kersevan, Borut, Kirschenmann, Henning, Kobel, Michael, Kordas, Konstantinos, Leisos, Antonios, Lelas, Damir, Lenzi, Piergiulio, Li, Ang, Lohwasser, Kristin, Lorenzo-Martinez, Narei, Manjarres, Joany, Mapelli, Dario, Marantis, Alexandros, Marchegiani, Matteo, Mascellani, Anna, Maznas, Ioannis, Mildner, Hannes, Mozer, Matthias Ulrich, Neukum, Max, Novak, Jakob, Ortona, Giacomo, Ozdemir, Kadri, Pellen, Mathieu, Pelliccioli, Giovanni, Petridou, Chariclia, Plätzer, Simon, Quaggio, Christian, Rauch, Michael, Rebuzzi, Daniela, Reuter, Jürgen, Sampsonidou, Despoina, Schramm, Steven, Siodmok, Andrzej, Slawinska, Magdalena, Szleper, Michał, Tarabini, Alessandro, Thorburn, Connor Innes, Todt, Stefanie, Tzamarias, Spyridon E., Tsirigotis, Apostolos, Valsecchi, Davide, Wuest, Lilly, Zaro, Marco, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, scattering [vector boson], data analysis method, High Energy Physics - Phenomenology (hep-ph), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], network, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, vector boson: scattering, High Energy Physics - Experiment
Abstract

This document reports the first year of activity of the VBSCan COST Action network, as summarised by the talks and discussions happened during the VBSCan Thessaloniki 2018 workshop. The VBSCan COST action is aiming at a consistent and coordinated study of vector-boson scattering from the phenomenological and experimental point of view, for the best exploitation of the data that will be delivered by existing and future particle colliders., Editors: Lucrezia Stella Bruni, Roberto Covarelli, Pietro Govoni, Piergiulio Lenzi, Narei Lorenzo-Martinez, Joany Manjarres, Matthias Ulrich Mozer, Giacomo Ortona, Mathieu Pellen, Daniela Rebuzzi, Magdalena Slawinska, Marco Zaro. Proceedings for the second annual meeting of the VBSCan COST action

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29. International Large Detector: Interim Design Report

Author

Abramowicz, Halina, Agatonovic Jovin, Tatjana, Alonso, Oscar, Amjad, Mohammad Sohail, An, Fenfen, Andricek, Ladislav, Anduze, Marc, Anguiano, Justin, Antonov, Evgeny, Aoki, Yumi, Arteche, Fernando, Attié, David, Büscher, Volker, Bach, Ole, Balagura, Vladislav, Baudot, Jérome, Begunov, Vadim, Behera, Subhasish, Behnke, Ties, Bellerive, Alain, Belver, Daniel, Benhammou, Yan, Berggren, Mikael, Berriaud, Christophe, Bertolone, Gregory, Besançon, Marc, Besson, Auguste, Beyer, Jakob, Bezshyyko, Oleg, Bhattacharya, Deb Sankar, Bhattacharya, Purba, Blazey, Gerald, Bocharnikov, Vladimir, Boronat, Marca, Borysov, Oleksandr, Bosley, Robert, Boudry, Vincent, Boumediene, Djamel, Bourgeois, Christian, Bozovic Jelisavcic, Ivanka, Breton, Dominique, Brianne, Eldwan, Brient, Jean-Claude, Briggl, Konrad, Buesser, Karsten, Callier, Stephane, Calvo Alamillo, Enrique, Carrillo, Camilo, Catalán, Ana, Chadeeva, Marina, Chau, Phi, Chera, Madalina, Chetverushkin, Boris, Chrzaszcz, Marcin, Claus, Gilles, Colas, Paul, Colledani, Claude, Combaret, Christophe, Cornat, Rémi, Corriveau, Francois, Danilov, Mikhail, Deguchi, Yuto, Desch, Klaus, Dieguez, Angel, Diener, Ralf, Dixit, Madhu, Dong, Mingyi, Dorokhov, Andrei, Dozière, Guy, Drutskoy, Alexey, Dulucq, Frederic, Dyshkant, Alexander, Edy, Evelyne, Eigen, Gerald, Einhaus, Ulrich, El Bitar, Ziad, Elkhalii, Amine, Emberger, Lorenz, Esperante, Danniel, Eté, Rémi, Fang, Yaquan, Fedorchuk, Oleksiy, Firlej, Miroslaw, Fiutowski, Tomasz, Fleck, Ivor, Fourches, Nicolas, Fouz, María Cruz, Francis, Kurt, Fujii, Kazuki, Fujii, Keisuke, Fullana, Esteban, Fusayasu, Takahiro, Fuster, Juan, Göttlicher, Peter, Gadow, Karsten, Gaede, Frank, Gallas, Alexandre, Ganjour, Serguei, García, Ignacio, García Cabrera, Hector, Garillot, Guillaume, Garutti, Erika, Gastaldi, Franck, Ghislain, Patrick, Goffe, Mathieu, Gomis, Pablo, Gong, Wenxuan, Gonnin, Alexandre, Goswami, Deepanjali, Goto, Kiichi, Graf, Christian, Gregor, Ingrid-Maria, Grenier, Gerald, Guillaumat, Réi, Habermehl, Moritz, Hagge, Lars, Hartbrich, Oskar, Hartjes, Fred, Henschel, Hans, Heuchel, Daniel, Hidalgo, Salvador, Himmi, Abdelkader, Hu, Tao, Hu-Guo, Christine, Ianigro, Jean-Christophe Tibor, Idzik, Marek, Irles, Adrian, Ishihara, Hiroki, Ishikawa, Akimasa, Jönsson, Leif, Jaaskelainen, Kimmo, Jeans, Daniel, Jeglot, Jimmy, Kacarevic, Goran, Kachel, Maciej, Kajiwara, Shogo, Kalinowski, Jan, Kaminski, Jochen, Kamiya, Yoshio, Karl, Robert, Kato, Yu, Kato, Yukihiro, Kawada, Shin-Ichi, Kawagoe, Kiyotomo, Khan, Sameen A, Kleinwort, Claus, Kluit, Peter, Kobayashi, Makoto, Koffmane, Christian, Komamiya, Sachio, Korpachev, Sergey, Kotera, Katsushige, Krämer, Uwe, Krüger, Katja, Kunath, Jonas, Kurata, Masakazu, Kurca, Tibor, Kvasnicka, Jirí, Lacour, Didier, Laktineh, Imad, Lange, Wolfgang, Lehtinen, Suvi-Leena, Lesiak, Tadeusz, Levy, Aharon, Levy, Itamar, Li, Bo, Li, Gang, Ligtenberg, Cornelis, List, Benno, List, Jenny, Liu, Linghui, Liu, Yong, Liu, Zhenan, Lohmann, Wolfgang, Louzir, Marc, Lu, Shaojun, Lundberg, Bjoern, Maalmi, Jihane, Magniette, Frédéric, Majumdar, Nayana, Makida, Yasuhiro, Malek, Paul, Marín, Jesús, Marshall, John, Martens, Stephan, Martin-Chassard, Gisele, Masetti, Lucia, Masuda, Ryunosuke, Mathez, Herve, Matsuda, Takeshi, McDonald, Kirk T, Mikhaylov, Dmitry, Mirabito, Laurent, Miroshin, Sergey, Mitaroff, Winfried, Miyamoto, Akiya, Mizuno, Takahiro, Mjörnmark, Ulf, Mogi, Takanori, Moortgat-Pick, Gudrid, Morel, Frédéric, Moreno, Sergio, Mori, Toshinori, Moron, Jakub, Moya, David, Mukhopadhyay, Supratik, Munwes, Yonathan, Nagamine, Tadashi, Nanni, Jérome, Napoly, Olivier, Narita, Shinya, Navarrete, Jose Javier, Negishi, Kentaro, Ninkovic, Jelena, Noori Shirazi, Amir, Ogawa, Tomohisa, Okamura, Takahiro, Omori, Tsunehiko, Ono, Hiroaki, Ootani, Wataru, Oskarsson, Anders, Östermann, Lennart, Ouyang, Qun, Pöschl, Roman, Parraud, Jean-Marc, Pawlik, Bogdan, Pellegrini, Giulio, Perello, Martin, Perez, Alejandro, Pham, Hung, Piedrafita, Javier, Pierre-Emile, Thomas, Pingault, Antoine, Pinto, Olin Lyod, Polák, Ivo, Popova, Elena, Poulose, Poulose, Pradas, Alvaro, Prahl, Volker, Price, Tony, Provenza, Ambra, Puerta Pelayo, Jesús, Qi, Huirong, Radkhorrami, Yasser, Raux, Ludovic, Raven, Gerhard, Reinecke, Mathias, Richard, Francois, Richter, Rainer, Riemann, Sabine, Robles Manzano, Maria Soledad, Rogan, Christopher, Rolph, Jack, Ros, Eduardo, Rosmanitz, Anna, Royon, Christophe, Ruan, Manqi, Ruiz-Jimeno, Alberto, Sanuki, Tomoyuki, Sasikumar, Swathi Kollassery, Sato, Yo, Saveliev, Andrey, Saveliev, Valery, Schäfer, Oliver, Schmitt, Christian, Schneekloth, Uwe, Schörner-Sadenius, Thomas, Schultz-Coulon, Hans-Christian, Schuwalow, Sergej, Sefkow, Felix, Seguin-Moreau, Nathalie, Sekiya, Izumi, Settles, Ronald, Shekhtman, L., Shen, Wei, Shiraz, Ryousuke, Shoji, Aiko, Simon, Frank, Sinram, Klaus, Smiljanic, Ivan, Specht, Matthieu, Stromhagen, Richard, Sudo, Yuji, Suehara, Taikan, Sugimoto, Yasuhiro, Sugiyama, Akira, Swientek, Krzysztof, Takahashi, Tohru, Takeshita, Tohru, Tamaya, Yukinaru, Tanabe, Tomohiko, Tauchi, Toshiaki, Telnov, Valery, Terlecki, Pzremyslaw, Thiebault, Alice, Tian, Junping, Timmermans, Jan, Titov, Maxim, Tran, Huong Lan, Tread, Reima, Tsionou, Dimitra, Tsuji, Naoki, Tuchming, Boris, Tytgat, Michael, Ueno, Takayuki, Uesugi, Yuto, Uozumi, Satoru, Valin, Isabelle, Vallée, Claude, Verdugo De Osa, Antonio, Vidal, Guillem, Videau, Henri, Vila, Iván, Villarrejo, Miguel Angel, Volkov, Denis, Vos, Marcel, Vukasinovic, Natasa, Wang, Yan, Watanabe, Takashi, Watson, Nigel, Werthenbach, Ulrich, Wilson, Graham W, Wing, Matthew, Winter, Alasdair, Winter, Marc, Wojtoń, Tomasz, Yamamoto, Hitoshi, Yamashita, Satoru, Yonamine, Ryo, Yoshioka, Tamaki, Yu, Boxiang, Yu, Dan, Yuan, Zhenxiong, Yumino, Keita, Zarnecki, Aleksander Filip, Zeitnitz, Christian, Zerwas, Dirk, Zhao, Hang, Zhao, Jingzhou, Zhao, Ruiguang, Zhao, Yüe, Zhu, Hongbo, and Zutshi, Vishnu

Subjects
detector: technology, electron positron, Physics::Instrumentation and Detectors, ILD detector, Physics::Accelerator Physics, costs, interface, High Energy Physics::Experiment, 7. Clean energy, ILC Coll, performance
Abstract

The ILD detector is proposed for an electron-positron collider with collision centre-of-mass energies from 90~\GeV~to about 1~\TeV. It has been developed over the last 10 years by an international team of scientists with the goal to design and eventually propose a fully integrated detector, primarily for the International Linear Collider, ILC. In this report the fundamental ideas and concepts behind the ILD detector are discussed and the technologies needed for the realisation of the detector are reviewed. The document starts with a short review of the science goals of the ILC, and how the goals can be achieved today with the detector technologies at hand. After a discussion of the ILC and the environment in which the experiment will take place, the detector is described in more detail, including the status of the development of the technologies foreseen for each subdetector. The integration of the different sub-systems into an integrated detector is discussed, as is the interface between the detector and the collider. This is followed by a concise summary of the benchmarking which has been performed in order to find an optimal balance between performance and cost. To the end the costing methodology used by ILD is presented, and an updated cost estimate for the detector is presented. The report closes with a summary of the current status and of planned future actions.

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