Limits...
Fastlim: a fast LHC limit calculator.

Papucci M, Sakurai K, Weiler A, Zeune L - Eur Phys J C Part Fields (2014)

Bottom Line: To demonstrate the utility of the program we study the sensitivity of the recent ATLAS missing energy searches to the parameter space of natural SUSY models.The program structure allows the straightforward inclusion of external efficiency tables and can be generalised to R-parity violating scenarios and non-SUSY models.This paper serves as a self-contained user guide and indicates the conventions and approximations used.

View Article: PubMed Central - PubMed

Affiliation: Michigan Center for Theoretical Physics, University of Michigan, Ann Arbor, MI 48109 USA.

ABSTRACT

Fastlim is a tool to calculate conservative limits on extensions of the Standard Model from direct LHC searches without performing any Monte Carlo event generation. The program reconstructs the visible cross sections (cross sections after event selection cuts) from pre-calculated efficiency tables and cross section tables for simplified event topologies. As a proof of concept of the approach, we have implemented searches relevant for supersymmetric models with R-parity conservation. Fastlim takes the spectrum and coupling information of a given model point and provides, for each signal region of the implemented analyses, the visible cross sections normalised to the corresponding upper limit, reported by the experiments, as well as the [Formula: see text] value. To demonstrate the utility of the program we study the sensitivity of the recent ATLAS missing energy searches to the parameter space of natural SUSY models. The program structure allows the straightforward inclusion of external efficiency tables and can be generalised to R-parity violating scenarios and non-SUSY models. This paper serves as a self-contained user guide and indicates the conventions and approximations used.

No MeSH data available.


Related in: MedlinePlus

“noZb” signal region in ATLAS_CONF_2013_035.  events of  process are used. The masses are:  GeV,  GeV
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Fig17: “noZb” signal region in ATLAS_CONF_2013_035. events of process are used. The masses are:  GeV,  GeV

Mentions: The events are generated using Herwig++ 2.5.2 throughout this analysis (Figs. 16, 17, 18, 19, 20, 21).


Fastlim: a fast LHC limit calculator.

Papucci M, Sakurai K, Weiler A, Zeune L - Eur Phys J C Part Fields (2014)

“noZb” signal region in ATLAS_CONF_2013_035.  events of  process are used. The masses are:  GeV,  GeV
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4370949&req=5

Fig17: “noZb” signal region in ATLAS_CONF_2013_035. events of process are used. The masses are:  GeV,  GeV
Mentions: The events are generated using Herwig++ 2.5.2 throughout this analysis (Figs. 16, 17, 18, 19, 20, 21).

Bottom Line: To demonstrate the utility of the program we study the sensitivity of the recent ATLAS missing energy searches to the parameter space of natural SUSY models.The program structure allows the straightforward inclusion of external efficiency tables and can be generalised to R-parity violating scenarios and non-SUSY models.This paper serves as a self-contained user guide and indicates the conventions and approximations used.

View Article: PubMed Central - PubMed

Affiliation: Michigan Center for Theoretical Physics, University of Michigan, Ann Arbor, MI 48109 USA.

ABSTRACT

Fastlim is a tool to calculate conservative limits on extensions of the Standard Model from direct LHC searches without performing any Monte Carlo event generation. The program reconstructs the visible cross sections (cross sections after event selection cuts) from pre-calculated efficiency tables and cross section tables for simplified event topologies. As a proof of concept of the approach, we have implemented searches relevant for supersymmetric models with R-parity conservation. Fastlim takes the spectrum and coupling information of a given model point and provides, for each signal region of the implemented analyses, the visible cross sections normalised to the corresponding upper limit, reported by the experiments, as well as the [Formula: see text] value. To demonstrate the utility of the program we study the sensitivity of the recent ATLAS missing energy searches to the parameter space of natural SUSY models. The program structure allows the straightforward inclusion of external efficiency tables and can be generalised to R-parity violating scenarios and non-SUSY models. This paper serves as a self-contained user guide and indicates the conventions and approximations used.

No MeSH data available.


Related in: MedlinePlus