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1. Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies

Author

Contino, R, Curtin, D, Katz, A, Mangano, ML, Panico, G, Ramsey-Musolf, MJ, Zanderighi, G, Anastasiou, C, Astill, W, Bambhaniya, G, Behr, JK, Bizon, W, Dev, PS Bhupal, Bortoletto, D, Buttazzo, D, Cao, Q-H, Caola, F, Chakrabortty, J, Chen, C-Y, Chen, S-L, Florian, D de, Dulat, F, Englert, C, Frost, JA, Fuks, B, Gherghetta, T, Giudice, G, Gluza, J, Greiner, N, Gray, H, Hartland, NP, Issever, C, Jelinski, T, Karlberg, A, Kim, JH, Kling, F, Lazopoulos, A, Lee, SJ, Liu, Y, Luisoni, G, Mazzitelli, J, Mistlberger, B, Monni, P, Nikolopoulos, K, Mohapatra, RN, Papaefstathiou, A, Perelstein, M, Petriello, F, Plehn, T, Reimitz, P, Ren, J, Rojo, J, Sakurai, K, Schell, T, Sala, F, Selvaggi, M, Shao, H-S, Son, M, Spannowsky, M, Srivastava, T, Su, S-F, Szafron, R, Tait, T, Tesi, A, Thamm, A, Torrielli, P, Tramontano, F, Winter, J, Wulzer, A, Yan, Q-S, Yao, WM, Zhang, Y-C, Zhao, X, Zhao, Z, and Zhong, Y-M

Subjects
hep-ph, hep-ex
Abstract

This report summarises the physics opportunities for the study of Higgsbosons and the dynamics of electroweak symmetry breaking at the 100 TeV ppcollider.

Published
2016

2. Simplified models for LHC new physics searches

Author

Alves, D, Arkani-Hamed, N, Arora, S, Bai, Y, Baumgart, M, Berger, J, Buckley, M, Butler, B, Chang, S, Cheng, HC, Cheung, C, Chivukula, RS, Cho, WS, Cotta, R, Dalfonso, M, Hedri, SE, Essig, R, Evans, JA, Fitzpatrick, L, Fox, P, Franceschini, R, Freitas, A, Gainer, JS, Gershtein, Y, Gray, R, Gregoire, T, Gripaios, B, Gunion, J, Han, T, Haas, A, Hansson, P, Hewett, J, Hits, D, Hubisz, J, Izaguirre, E, Kaplan, J, Katz, E, Kilic, C, Kim, HD, Kitano, R, Koay, SA, Ko, P, Krohn, D, Kuflik, E, Lewis, I, Lisanti, M, Liu, T, Liu, Z, Lu, R, Luty, M, Meade, P, Morrissey, D, Mrenna, S, Nojiri, M, Okui, T, Padhi, S, Papucci, M, Park, M, Perelstein, M, Peskin, M, Phalen, D, Rehermann, K, Rentala, V, Roy, T, Ruderman, JT, Sanz, V, Schmaltz, M, Schnetzer, S, Schuster, P, Schwaller, P, Schwartz, MD, Schwartzman, A, Shao, J, Shelton, J, Shih, D, Shu, J, Silverstein, D, Simmons, E, Somalwar, S, Spannowsky, M, Spethmann, C, Strassler, M, Su, S, Tait, T, Thomas, B, Thomas, S, Toro, N, Volansky, T, Wacker, J, Waltenberger, W, Yavin, I, Yu, F, Zhao, Y, and Zurek, K

Subjects
hep-ph, hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

This document proposes a collection of simplified models relevant to the design of new-physics searches at the Large Hadron Collider (LHC) and the characterization of their results. Both ATLAS and CMS have already presented some results in terms of simplified models, and we encourage them to continue and expand this effort, which supplements both signature-based results and benchmark model interpretations. A simplified model is defined by an effective Lagrangian describing the interactions of a small number of new particles. Simplified models can equally well be described by a small number of masses and cross-sections. These parameters are directly related to collider physics observables, making simplified models a particularly effective framework for evaluating searches and a useful starting point for characterizing positive signals of new physics. This document serves as an official summary of the results from the Topologies for Early LHC Searches workshop, held at SLAC in September of 2010, the purpose of which was to develop a set of representative models that can be used to cover all relevant phase space in experimental searches. Particular emphasis is placed on searches relevant for the first 50-500 pb 1 of data and those motivated by supersymmetric models. This note largely summarizes material posted at http://lhcnewphysics.org/, which includes simplified model definitions, Monte Carlo material, and supporting contacts within the theory community. We also comment on future developments that may be useful as more data is gathered and analyzed by the experiments. © 2012 IOP Publishing Ltd.

Published
2012

3. Tevatron-for-LHC Report: Preparations for Discoveries

Author

Buescher, V, Carena, M, Dobrescu, B, Mrenna, S, Rainwater, D, Schmitt, M, Abdullin, S, Acosta, D, Asai, S, Atramentov, O, Baer, H, Balazs, C, Bartalini, P, Belyaev, A, Bernhard, R, Birkedal, A, Cavanaugh, R, Chen, M-C, Clement, C, Datta, A, Boer, Y de, DeRoeck, A, Drozdetskiy, A, Gershtein, Y, Glenzinski, D, Group, C, Heinemeyer, S, Heldmann, M, Hubisz, J, Karlsson, M, Kong, K, Korytov, A, Kraml, S, Krupovnickas, T, Lafaye, R, Lane, K, Ledroit, F, Lehner, F, Lin, C-J, Macesanu, C, Matchev, K, Menon, A, Milstead, D, Mitselmakher, G, Morel, J, Morrissey, D, O'Farrill, J, Pakhotin, Y, Perelstein, M, Plehn, T, Raklev, A, Scurlock, B, Sherstnev, A, Skands, P, Sullivan, Z, Tait, T, Tata, X, Torchiani, I, Trocme, B, Wagner, C, Weiglein, G, and Zerwas, D

Subjects
hep-ph, hep-ex
Abstract

This is the "TeV4LHC" report of the "Physics Landscapes" Working Group,focused on facilitating the start-up of physics explorations at the LHC byusing the experience gained at the Tevatron. We present experimental andtheoretical results that can be employed to probe various scenarios for physicsbeyond the Standard Model.

Published
2006

4. Report of the 2005 Snowmass Top/QCD Working Group

Author

Juste, A, Kiyo, Y, Petriello, F, Teubner, T, Agashe, K, Batra, P, Baur, U, Berger, CF, Cembranos, JAR, Ridder, A Gehrmann-De, Gehrmann, T, Glover, EWN, Godfrey, S, Hoang, A, Perelstein, M, Sullivan, Z, Tait, T, and Zhu, S

Subjects
hep-ph, hep-ex
Abstract

This report discusses several topics in both top quark physics and QCD at anInternational Linear Collider (ILC). Issues such as measurements at the$t\bar{t}$ threshold, including both theoretical and machine requirements, andthe determination of electroweak top quark couplings, are reviewed. New resultsconcerning the potential of a 500 GeV $e^+e^-$ collider for measuring $Wtb$couplings and the top quark Yukawa coupling are presented. The status of higherorder QCD corrections to jet production cross sections, heavy quark formfactors, and longitudinal gauge boson scattering, needed for percent-levelstudies at the ILC, are reviewed. A new study of the measurement of thehadronic structure of the photon at a $\gamma\gamma$ collider is presented. Theeffects on top quark properties from several models of new physics, includingcomposite models, Little Higgs theories, and CPT violation, are studied.

Published
2006

5. Toward High Precision Higgs-Boson Measurements at the International Linear e+e- Collider

Author

Heinemeyer, S, Kanemura, S, Logan, H, Raspereza, A, Tait, T, Baer, H, Berger, EL, Birkedal, A, Brient, J-C, Carena, M, Cembranos, JAR, Choi, S, Godfrey, S, Gunion, J, Haber, HE, Han, T, Heath, H, Hesselbach, S, Kalinowski, J, Kilian, W, Moortgat-Pick, G, Moretti, S, Mrenna, S, Muhlleitner, M, Petriello, F, Reuter, J, Ronan, M, Skands, P, Sopczak, A, Spira, M, Sullivan, Z, Wagner, C, Weiglein, G, and Zerwas, P

Subjects
hep-ph
Abstract

This report reviews the properties of Higgs bosons in the Standard Model (SM)and its various extensions. We give an extensive overview about the potentialof the ILC operated at centre-of-mass energies up to 1 TeV (including the gammagamma option) for the determination of the Higgs boson properties. Thiscomprises the measurement of the Higgs boson mass, its couplings to SM fermionsand gauge bosons, and the determination of the spin and the CP quantum numbersof the Higgs. The extensions of the SM that are analyzed in more detail areheavy SM-like Higgs bosons, heavy Higgs bosons in the framework ofSupersymmetry (SUSY) and further exotic scenarios. We review recent theoreticaldevelopments in the field of Higgs boson physics. The important question whatthe ILC can contribute to Higgs boson physics after the LHC, the LHC/ILCinterplay and synergy is discussed. The impact of Higgs boson physics oncosmology in several SUSY frameworks is analyzed. The impact of the acceleratorand dector performance on the precision of measurements are discussed indetail. We propose a strategy to optimize future analyses. Open questionsarising for the various topics are listed, further topics of study andcorresponding roadmaps are suggested.

Published
2005

6. Axion Dark Matter

Author

Adams, C. B., Aggarwal, N., Agrawal, A., Balafendiev, R., Bartram, C., Baryakhtar, M., Bekker, H., Belov, P., Berggren, K. K., Berlin, A., Boutan, C., Bowring, D., Budker, D., Caldwell, A., Carenza, P., Carosi, G., Cervantes, R., Chakrabarty, S. S., Chaudhuri, S., Chen, T. Y., Cheong, S., Chou, A., Co, R. T., Conrad, J., Croon, D., D'Agnolo, R. T., Demarteau, M., DePorzio, N., Descalle, M., Desch, K., Di Luzio, L., Diaz-Morcillo, A., Dona, K., Drachnev, I. S., Droster, A., Du, N., Dunne, K., Döbrich, B., Ellis, S. A. R., Essig, R., Fan, J., Foster, J. W., Fry, J. T., Rosso, A. Gallo, Barceló, J. M. García, Irastorza, I. G., Gardner, S., Geraci, A. A., Ghosh, S., Giaccone, B., Giannotti, M., Gimeno, B., Grin, D., Grote, H., Guzzetti, M., Awida, M. H., Henning, R., Hoof, S., Hoshino, G., Irsic, V., Irwin, K. D., Jackson, H., Kimball, D. F. Jackson, Jaeckel, J., Jakovcic, K., Jewell, M. J., Kagan, M., Kahn, Y., Khatiwada, R., Knirck, S., Kovachy, T., Krueger, P., Kuenstner, S. E., Kurinsky, N. A., Leane, R. K., Leder, A. F., Lee, C., Lehnert, K. W., Lentz, E. W., Lewis, S. M., Liu, J., Lynn, M., Majorovits, B., Marsh, D. J. E., Maruyama, R. H., McAllister, B. T., Millar, A. J., Miller, D. W., Mitchell, J., Morampudi, S., Mueller, G., Nagaitsev, S., Nardi, E., Noroozian, O., O'Hare, C. A. J., Oblath, N. S., Ouellet, J. L., Pappas, K. M. W., Peiris, H. V., Perez, K., Phipps, A., Pivovaroff, M. J., Quílez, P., Rapidis, N. M., Robles, V. H., Rogers, K. K., Rudolph, J., Ruz, J., Rybka, G., Safdari, M., Safdi, B. R., Safronova, M. S., Salemi, C. P., Schuster, P., Schwartzman, A., Shu, J., Simanovskaia, M., Singh, J., Singh, S., Sinha, K., Sinnis, J. T., Siodlaczek, M., Smith, M. S., Snow, W. M., Sokolov, A. V., Sonnenschein, A., Speller, D. H., Stadnik, Y. V., Sun, C., Sushkov, A. O., Tait, T. M. P., Takhistov, V., Tanner, D. B., Tavecchio, F., Temples, D. J., Thomas, J. H., Tobar, M. E., Toro, N., Tsai, Y. -D., van Assendelft, E. C., van Bibber, K., Vandegar, M., Visinelli, L., Vitagliano, E., Vogel, J. K., Wang, Z., Wickenbrock, A., Winslow, L., Withington, S., Wooten, M., Yang, J., Young, B. A., Yu, F., Zhou, K., and Zhou, T.

Subjects
Astrophysics and Astronomy, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, hep-ex, FOS: Physical sciences, hep-ph, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), astro-ph.CO, Detectors and Experimental Techniques, physics.ins-det, Particle Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Particle Physics - Phenomenology
Abstract

Axions are well-motivated dark matter candidates with simple cosmological production mechanisms. They were originally introduced to solve the strong CP problem, but also arise in a wide range of extensions to the Standard Model. This Snowmass white paper summarizes axion phenomenology and outlines next-generation laboratory experiments proposed to detect axion dark matter. There are vibrant synergies with astrophysical searches and advances in instrumentation including quantum-enabled readout, high-Q resonators and cavities and large high-field magnets. This white paper outlines a clear roadmap to discovery, and shows that the US is well-positioned to be at the forefront of the search for axion dark matter in the coming decade., restore and expand author list

Published
2022

7. Physics at a 100 TeV pp collider:Higgs and EW symmetry breaking studies

Author

Contino, R., Curtin, D.M., Katz, Albert, Mangano, Michelangelo L., Panico, G., Ramsey-Musolf, M. J., Zanderighi, G., Anastasiou, C., Astill, W., Bambhaniya, G., Behr, J. K., Bizon, W., Dev, P. S. Bhupal, Bortoletto, Daniela, Buttazzo, D., Cao, Q. -H., Caola, Fabrizio, Chakrabortty, J., Chen, C. -Y., Chen, S. -L., Florian, D. de, Dulat, F., Englert, C., Frost, J. A., Fuks, B., Gherghetta, T., del Giudice, G., Gluza, J., Greiner, N., Gray, H., Hartland, N. P., Issever, Cigdem, Jelinski, T., Karlberg, A.T., Kim, J. H., Kling, M.F., Lazopoulos, A., Lee, S. J., Liu, Y., Luisoni, G., Mazzitelli, J., Mistlberger, B., Monni, P., Nikolopoulos, K., Mohapatra, R. N., Papaefstathiou, A., Perelstein, M., Petriello, F., Plehn, T., Reimitz, P., Ren, J., Rojo, J., Sakurai, K., Schell, T., Sala, F., Selvaggi, M., Shao, H. -S., Son, M., Spannowsky, M., Srivastava, T., Su, S. -F., Szafron, R., Tait, T., Tesi, A., Thamm, A., Torrielli, P., Tramontano, F., Winter, J., Wulzer, A., Yan, Q. -S., Yao, W. M., Zhang, Y. -C., Zhao, X., Zhao, Z., and Zhong, Y. -M.

Subjects
Physics::Instrumentation and Detectors, hep-ex, High Energy Physics::Phenomenology, Physics::Accelerator Physics, High Energy Physics::Experiment, hep-ph, SDG 6 - Clean Water and Sanitation
Abstract

This report summarises the physics opportunities for the study of Higgs bosons and the dynamics of electroweak symmetry breaking at the 100 TeV pp collider.

Published
2016

8. Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies

Author

Contino, R., Curtin, D.M., Katz, Albert, Mangano, Michelangelo L., Panico, G., Ramsey-Musolf, M. J., Zanderighi, G., Anastasiou, C., Astill, W., Bambhaniya, G., Behr, J. K., Bizon, W., Dev, P. S. Bhupal, Bortoletto, Daniela, Buttazzo, D., Cao, Q. -H., Caola, Fabrizio, Chakrabortty, J., Chen, C. -Y., Chen, S. -L., Florian, D. de, Dulat, F., Englert, C., Frost, J. A., Fuks, B., Gherghetta, T., del Giudice, G., Gluza, J., Greiner, N., Gray, H., Hartland, N. P., Issever, Cigdem, Jelinski, T., Karlberg, A.T., Kim, J. H., Kling, M.F., Lazopoulos, A., Lee, S. J., Liu, Y., Luisoni, G., Mazzitelli, J., Mistlberger, B., Monni, P., Nikolopoulos, K., Mohapatra, R. N., Papaefstathiou, A., Perelstein, M., Petriello, F., Plehn, T., Reimitz, P., Ren, J., Rojo, J., Sakurai, K., Schell, T., Sala, F., Selvaggi, M., Shao, H. -S., Son, M., Spannowsky, M., Srivastava, T., Su, S. -F., Szafron, R., Tait, T., Tesi, A., Thamm, A., Torrielli, P., Tramontano, F., Winter, J., Wulzer, A., Yan, Q. -S., Yao, W. M., Zhang, Y. -C., Zhao, X., Zhao, Z., Zhong, Y. -M., and (Astro)-Particles Physics

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), hep-ex, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Physics::Accelerator Physics, FOS: Physical sciences, hep-ph, High Energy Physics::Experiment, SDG 6 - Clean Water and Sanitation, High Energy Physics - Experiment
Abstract

This report summarises the physics opportunities for the study of Higgs bosons and the dynamics of electroweak symmetry breaking at the 100 TeV pp collider., Comment: 187 pages, 94 figures. Chapter 2 of the "Physics at the FCC-hh" Report

Published
2016
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9. New Particles Working Group Report of the Snowmass 2013 Community Summer Study

Author

Gershtein, Y., Luty, M., Bartels, C., Bauer, M., Berge, D., Berggren, Carl Mikael, Bhattacharya, S., Black, K., Bose, T., Brau, J., Brock, R., Brownson, E., Narain, M., Cahill-Rowley, M., Cakir, A., Chaus, A., Cohen, T., Coleppa, B., Cotta, R., Craig, N., Dienes, K., Dobrescu, B., Duggan, D., Wang, L. -T., Essig, R., Evans, J., Drlica-Wagner, A., Funk, S., George, J., Goertz, F., Golling, T., Han, T., Haas, A., Hance, M., Whiteson, D., Hayden, D., Heintz, U., Henrichs, A., Hewett, J., Hirschauer, J., Howe, K., Ismail, A., Kaadze, K., Kats, Y., Kling, F., Agashe, K., Kolchmeyer, D., Kruecker, Dirk, Kong, K. C., Kumar, A., Kribs, G., Langacker, P., Lath, A., Lee, S. J., List, J., Lin, T., Apanasevich, L., Linssen, L., Liu, T., Liu, Z., Lobanov, A., Loyal, J., Martin, A., Melzer-Pellmann, I., Nojiri, M. M., Padhi, S., Parashar, N., Artoni, G., Penning, B., Perelstein, M., Peskin, M., Pierce, A., Porod, W., Potter, C., Rizzo, T., Sciolla, G., Stupak, J., Su, S., Avetisyan, A., Tait, T. M. P., Tanabe, T., Thomas, B., Thomas, S., Upadhyay, S., Varelas, N., Varnes, E., Vecchi, L., Venturini, A., Vormwald, B., Baer, H., Wacker, J., Walker, M., Wood, M., Yu, F., and Zhou, N.

Subjects
R parity, final state [jet], massive [postulated particle], WIMP, long-lived, composite [fermion], review, FOS: Physical sciences, interaction [p p], Higgs particle, ILC Coll, dark matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Z', CERN CLIC, higher-dimensional [space-time], Kaluza-Klein model, new physics, hep-ex, bibliography, hep-ph, High Energy Physics - Phenomenology, CERN LHC Coll, final state [lepton], missing-energy [transverse energy], hierarchy [mass], interaction [electron positron], proposed experiment, supersymmetry, new particle
Abstract

This report summarizes the work of the Energy Frontier New Physics working group of the 2013 Community Summer Study (Snowmass).

Published
2013
Full Text
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10. New Horizons: Scalar and Vector Ultralight Dark Matter

Author

Antypas, D., Banerjee, A., Bartram, C., Baryakhtar, M., Betz, J., Bollinger, J. J., Boutan, C., Bowring, D., Budker, D., Carney, D., Carosi, G., Chaudhuri, S., Cheong, S., Chou, A., Chowdhury, M. D., Co, R. T., López-Urrutia, J. R. Crespo, Demarteau, M., Deporzio, N., Derbin, A. V., Deshpande, T., Di Luzio, L., Diaz-Morcillo, A., Doyle, J. M., Drlica-Wagner, A., Droster, A., Du, N., Döbrich, B., Eby, J., Essig, R., Farren, G. S., Figueroa, N. L., Fry, J. T., Gardner, S., Geraci, A. A., Ghalsasi, A., Ghosh, S., Giannotti, M., Gimeno, B., Griffin, S. M., Grin, D., Grote, H., Gundlach, J. H., Guzzetti, M., Hanneke, D., Harnik, R., Henning, R., Irsic, V., Jackson, H., Kimball, D. F. Jackson, Jaeckel, J., Kagan, M., Kedar, D., Khatiwada, R., Knirck, S., Kolkowitz, S., Kovachy, T., Kuenstner, S. E., Lasner, Z., Leder, A. F., Lehnert, R., Leibrandt, D. R., Lentz, E., Lewis, S. M., Zhen Liu, Manley, J., Maruyama, R. H., Millar, A. J., Muratova, V. N., Musoke, N., Nagaitsev, S., Noroozian, O., O Hare, C. A. J., Ouellet, J. L., Pappas, K. M. W., Peik, E., Perez, G., Phipps, A., Rapidis, N. M., Robinson, J. M., Robles, V. H., Rogers, K. K., Rudolph, J., Rybka, G., Safdari, M., Safronova, M. S., Salemi, C. P., Schmidt, P. O., Schumm, T., Schwartzman, A., Shu, J., Simanovskaia, M., Singh, J., Singh, S., Smith, M. S., Snow, W. M., Stadnik, Y. V., Sun, C., Sushkov, A. O., Tait, T. M. P., Takhistov, V., Tanner, D. B., Temples, D. J., Thirolf, P. G., Thomas, J. H., Tobar, M. E., Tretiak, O., Tsai, Y. -D, Tyson, J. A., Vandegar, M., Vermeulen, S., Visinelli, L., Vitagliano, E., Wang, Z., Wilson, D. J., Winslow, L., Withington, S., Wooten, M., Yang, J., Ye, J., Young, B. A., Yu, F., Zaheer, M. H., Zelevinsky, T., Zhao, Y., and Zhou, K.

Subjects
Quantum Physics, Astrophysics and Astronomy, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, hep-ex, FOS: Physical sciences, hep-ph, Instrumentation and Detectors (physics.ins-det), Astrophysics::Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), quant-ph, astro-ph.CO, Detectors and Experimental Techniques, Quantum Physics (quant-ph), physics.ins-det, General Theoretical Physics, Particle Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Particle Physics - Phenomenology
Abstract

The last decade has seen unprecedented effort in dark matter model building at all mass scales coupled with the design of numerous new detection strategies. Transformative advances in quantum technologies have led to a plethora of new high-precision quantum sensors and dark matter detection strategies for ultralight ($, Snowmass 2021 White Paper

11. Simplified Models for LHC New Physics Searches

Author

Emanuel Katz, Wolfgang Waltenberger, Michele Papucci, Scott Thomas, P. Hansson, JoAnne L. Hewett, David Shih, Joshua Berger, Philip Schuster, Tuhin S. Roy, Liam Fitzpatrick, Jessie Shelton, Martin Schmaltz, Keith Rehermann, Matthew Baumgart, Daniele S. M. Alves, Michael Spannowsky, Jing Shu, Sonia El Hedri, Ayres Freitas, Matthew D. Schwartz, Andy Haas, S. Schnetzer, Hsin-Chia Cheng, Myeonghun Park, Daniel Silverstein, Eric Kuflik, Pedro Schwaller, Spencer Chang, J.F. Gunion, Jing Shao, Kathryn M. Zurek, Jared Kaplan, Michael Park, Stephen Mrenna, David E. Morrissey, Matthew J. Strassler, Thomas Gregoire, Tim M. P. Tait, Ian M. Lewis, Veronica Sanz, Mihoko M. Nojiri, S. Arora, Itay Yavin, Matthew R. Buckley, Sunil Somalwar, Clifford Cheung, Pyungwon Ko, Ran Lu, Brooks Thomas, Patrick J. Fox, Joshua T. Ruderman, Sue Ann Koay, Ryuichiro Kitano, Tao Liu, Mariarosaria D'Alfonso, Yue Zhao, Jay G. Wacker, Nima Arkani-Hamed, Tomer Volansky, Ben Gripaios, Michael E. Peskin, Bart Butler, R. Cotta, Won Sang Cho, Ariel Schwartzman, Vikram Rentala, Hyung Do Kim, Natalia Toro, Sanjay Padhi, Mariangela Lisanti, Jay Hubisz, Dmitry Hits, Zhen Liu, Eder Izaguirre, Patrick Meade, Can Kilic, Maxim Perelstein, Rouven Essig, Jared A. Evans, Elizabeth H. Simmons, Shufang Su, James S. Gainer, Markus A. Luty, Felix Yu, Christian Spethmann, R. Sekhar Chivukula, Takemichi Okui, Roberto Franceschini, Yang Bai, David Krohn, R. N.C. Gray, Tao Han, Daniel J. Phalen, Yuri Gershtein, Alves, D., Arkani Hamed, Arora, S., Bai, Y., Baumgart, M., Berger, J., Buckley, M., Butler, B., Chang, S., Cheng, H. C., Cheung, C., Chivukula, R. S., Cho, W. S., Cotta, R., Dalfonso, M., Hedri, S. E., Essig, R., Evans, J., . A., Fitzpatrick, L., Fox, P., Franceschini, Roberto, Freitas, A., Gainer, J. S., Gershtein, Y., Gray, H., Gregoire, T., Gripaios, B., Gunion, J., Han, T., Haas, A., Hansson, P., Hewett, J., Hits, D., Hubisz, J., Izaguirre, E., Kaplan, D., Katz, E., Kilic, C., Kim, H. D., Kitano, R., Koay, S. A., Ko, P., Krohn, D., Kuflik, E., Lewis, I., Lisanti, M., Liu, T., Liu, Z., Lu, R., Luty, M., Meade, P., Morrissey, D., Mrenna, S., Nojiri, M., Okui, T., Padhi, S., Papucci, M., Park, M., Perelstein, M., Peskin, M., Phalen, D., Rehermann, K., Rentala, V., Roy, T., Ruderman, J. T., Sanz, V., Schmaltz, M., Schnetzer, S., Schuster, P., Schwaller, P., Schwartz, M. D., Schwartzman, A., Shao, J., Shelton, D., Shih, D., Shu, J., Silverstein, D., Simmons, E., Somalwar, S., Spannowsky, M., Spethmann, C., Strassler, M., Su, S., Tait, T., Thomas, B., Thomas, S., Toro, N., Volansky, T., Wacker, J., Waltenberger, W., Yavin, I., Yu, F., Zhao, Y., and Zurek, K.

Subjects
Nuclear and High Energy Physics, Particle physics, Collider physics, Physics beyond the Standard Model, Monte Carlo method, FOS: Physical sciences, Network topology, Atomic, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, Nuclear, 010306 general physics, Particle Physics - Phenomenology, Physics, Information retrieval, Large Hadron Collider, hep-ex, 010308 nuclear & particles physics, Small number, Molecular, hep-ph, Observable, Nuclear & Particles Physics, 3. Good health, High Energy Physics - Phenomenology, Phase space
Abstract

This document proposes a collection of simplified models relevant to the design of new-physics searches at the LHC and the characterization of their results. Both ATLAS and CMS have already presented some results in terms of simplified models, and we encourage them to continue and expand this effort, which supplements both signature-based results and benchmark model interpretations. A simplified model is defined by an effective Lagrangian describing the interactions of a small number of new particles. Simplified models can equally well be described by a small number of masses and cross-sections. These parameters are directly related to collider physics observables, making simplified models a particularly effective framework for evaluating searches and a useful starting point for characterizing positive signals of new physics. This document serves as an official summary of the results from the "Topologies for Early LHC Searches" workshop, held at SLAC in September of 2010, the purpose of which was to develop a set of representative models that can be used to cover all relevant phase space in experimental searches. Particular emphasis is placed on searches relevant for the first ~50-500 pb-1 of data and those motivated by supersymmetric models. This note largely summarizes material posted at http://lhcnewphysics.org/, which includes simplified model definitions, Monte Carlo material, and supporting contacts within the theory community. We also comment on future developments that may be useful as more data is gathered and analyzed by the experiments., 40 pages, 2 figures. This document is the official summary of results from "Topologies for Early LHC Searches" workshop (SLAC, September 2010). Supplementary material can be found at http://lhcnewphysics.org

Published
2011

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