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Search for New Physics in Mono-jet Final States in pp Collisions

2017-06-19 Science
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Release : 2017-06-19
Genre : Science
Kind : eBook
Book Rating : 710/5 ( reviews)

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Book Synopsis Search for New Physics in Mono-jet Final States in pp Collisions by : Giuliano Gustavino

Download or read book Search for New Physics in Mono-jet Final States in pp Collisions written by Giuliano Gustavino. This book was released on 2017-06-19. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides a detailed and comprehensive description of the search for New Physics at the Large Hadron Collider (LHC) in the mono-jet final state, using the first 3.2 fb-1 of data collected at the centre of mass energy of colliding protons of 13~TeV recorded in the ATLAS experiment at LHC. The results are interpreted as limits in different theoretical contexts such as compressed supersymmetric models, theories that foresee extra-spatial dimensions and in the dark matter scenario. In the latter the limits are then compared with those obtained by other ATLAS analyses and by experiments based on completely different experimental techniques, highlighting the role of the mono-jet results in the context of dark matter searches.Lastly, a set of possible analysis improvements are proposed to reduce the main uncertainties that affect the signal region and to increase the discovery potential by further exploiting the information on the final state.

New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics

2014-03-26 Science
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Release : 2014-03-26
Genre : Science
Kind : eBook
Book Rating : 754/5 ( reviews)

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Book Synopsis New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics by : Roman Anatolievich Ryutin

Download or read book New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics written by Roman Anatolievich Ryutin. This book was released on 2014-03-26. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume contains the materials of the XXIXth International Workshop on High Energy Physics. The content of the volume is much wider than just high-energy physics and actually concerns all the most fundamental areas of modern physics research: high-energy physics proper, gravitation and cosmology. Presentations embrace both theory and experiment.

Searching for Dark Matter with the ATLAS Detector

2016-11-23 Science
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Release : 2016-11-23
Genre : Science
Kind : eBook
Book Rating : 530/5 ( reviews)

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Book Synopsis Searching for Dark Matter with the ATLAS Detector by : Steven Schramm

Download or read book Searching for Dark Matter with the ATLAS Detector written by Steven Schramm. This book was released on 2016-11-23. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the search for Dark Matter at the LHC in the mono-jet plus missing transverse momentum final state, using the full dataset recorded in 2012 by the ATLAS Experiment. It is the first time that the number of jets is not explicitly restricted to one or two, thus increasing the sensitivity to new signals. Instead, a balance between the most energetic jet and the missing transverse momentum is required, thus selecting mono-jet-like final states. Collider searches for Dark Matter have typically used signal models employing effective field theories (EFTs), even when comparing to results from direct and indirect detection experiments, where the difference in energy scale renders many such comparisons invalid. The thesis features the first robust and comprehensive treatment of the validity of EFTs in collider searches, and provides a means by which the different classifications of Dark Matter experiments can be compared on a sound and fair basis.

Search for Exotic Mono-jet Events

2015-08-24 Science
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Release : 2015-08-24
Genre : Science
Kind : eBook
Book Rating : 252/5 ( reviews)

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Book Synopsis Search for Exotic Mono-jet Events by : Valerio Rossetti

Download or read book Search for Exotic Mono-jet Events written by Valerio Rossetti. This book was released on 2015-08-24. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes in detail the search for new phenomena in mono-jet final states with the ATLAS experiment at the LHC. The final state is considered the golden channel in the searches for large extra dimensions (LED) but also allows access to a very rich SUSY-related phenomenology pertaining to the production of weakly interacting massive particles (WIMPS), SUSY Dark Matter candidates, GMSB SUSY models with very light gravitino masses, as well as stop an sbottom pair production in compressed scenarios (with nearly degenerated squarks and the lightest neutralino), and also invisible Higgs searches, among others. Here, a number of these scenarios are explored. The measurements presented yield new powerful constraints on the existence of extra spatial dimensions, the pair production of WIMPs, and also provide the best limit to date on the gravitino mass.

Search for New Physics with the MT2 Variable in All-jets Final States Produced in Pp Collisions at √s

2016
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Release : 2016
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Book Synopsis Search for New Physics with the MT2 Variable in All-jets Final States Produced in Pp Collisions at √s by : Mario Masciovecchio

Download or read book Search for New Physics with the MT2 Variable in All-jets Final States Produced in Pp Collisions at √s written by Mario Masciovecchio. This book was released on 2016. Available in PDF, EPUB and Kindle. Book excerpt:

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