Simplified Models for LHC New Physics Searches
Creators: name: Alves, Daniele
name: Arkani-Hamed, Nima
name: Arora, Sanjay
name: Bai, Yang
name: Baumgart, Matthew
name: Berger, Joshua
name: Buckley, Matthew
name: Butler, Bart
name: Chang, Spencer
name: Cheng, Hsin-Chia
name: Cheung, Clifford
name: Chivukula, R. Sekhar
name: Cho, Won Sang
name: Cotta, Randy
name: D'Alfonso, Mariarosaria
name: Hedri, Sonia El
name: Essig, Rouven
name: Evans, Jared A.
name: Fitzpatrick, Liam
name: Fox, Patrick
name: Franceschini, Roberto
name: Freitas, Ayres
name: Gainer, James S.
name: Gershtein, Yuri
name: Gray, Richard
name: Gregoire, Thomas
name: Gripaios, Ben
name: Gunion, Jack
name: Han, Tao
name: Haas, Andy
name: Hansson, Per
name: Hewett, JoAnne
name: Hits, Dmitry
name: Hubisz, Jay
name: Izaguirre, Eder
name: Kaplan, Jared
name: Katz, Emanuel
name: Kilic, Can
name: Kim, Hyung-Do
name: Kitano, Ryuichiro
name: Koay, Sue Ann
name: Ko, Pyungwon
name: Krohn, David
name: Kuflik, Eric
name: Lewis, Ian
name: Lisanti, Mariangela
name: Liu, Tao
name: Liu, Zhen
name: Lu, Ran
name: Luty, Markus
name: Meade, Patrick
name: Morrissey, David
name: Mrenna, Stephen
name: Nojiri, Mihoko
name: Okui, Takemichi
name: Padhi, Sanjay
name: Papucci, Michele
name: Park, Michael
name: Park, Myeonghun
name: Perelstein, Maxim
name: Peskin, Michael
name: Phalen, Daniel
name: Rehermann, Keith
name: Rentala, Vikram
name: Roy, Tuhin
name: Ruderman, Joshua T.
name: Sanz, Veronica
name: Schmaltz, Martin
name: Schnetzer, Stephen
name: Schuster, Philip
name: Schwaller, Pedro
name: Schwartz, Matthew D.
name: Schwartzman, Ariel
name: Shao, Jing
name: Shelton, Jessie
name: Shih, David
name: Shu, Jing
name: Silverstein, Daniel
name: Simmons, Elizabeth
name: Somalwar, Sunil
name: Spannowsky, Michael
name: Spethmann, Christian
name: Strassler, Matthew
name: Su, Shufang
name: Tait, Tim
name: Thomas, Brooks
name: Thomas, Scott
name: Toro, Natalia
name: Volansky, Tomer
name: Wacker, Jay
name: Waltenberger, Wolfgang
name: Yavin, Itay
name: Yu, Felix
name: Zhao, Yue
name: Zurek, Kathryn
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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.
description: 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