Search

Your search keyword '"GINGRICH, DOUGLAS M."' showing total 6 results
Start Over Author "GINGRICH, DOUGLAS M." Topic black holes
6 results on '"GINGRICH, DOUGLAS M."'

2. Collider searches for nonperturbative low-scale gravity states.

Author

Gingrich, Douglas M.

Subjects
*COLLISIONS (Nuclear physics), *QUANTUM perturbations, *LARGE Hadron Collider, *PROTON-proton interactions, *CENTER of mass
Abstract

The possibility of producing nonperturbative low-scale gravity states in collider experiments was first discussed in about 1998. The ATLAS and CMS experiments have searched for nonperturbative low-scale gravity states using the Large Hadron Collider with a proton-proton center-of-mass energy of 8 TeV. These experiments have now seriously confronted the possibility of producing nonperturbative low-scale gravity states which were proposed over 17 years ago. I will summarize the results of the searches, give a personal view of what they mean, and make some predictions for 13 TeV center-of-mass energy. I will also discuss early ATLAS 13 TeV center-of-mass energy results. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

3. BLACK HOLE PRODUCTION AT THE LARGE HADRON COLLIDER.

Author

GINGRICH, DOUGLAS M.

Subjects
*LARGE Hadron Collider, *FOKKER-Planck equation, *SUPERMASSIVE black holes, *GENERAL relativity (Physics), *ELECTRIC charge
Abstract

Black hole production at the Large Hadron Collider (LHC) is an interesting consequence of TeV-scale gravity models. The predicted values, or lower limits, for the fundamental Planck scale and number of extra dimensions will depend directly on the accuracy of the black hole production cross-section. We give a range of lower limits on the fundamental Planck scale that could be obtained at LHC energies. In addition, we examine the effects of parton electric charge on black hole production using the trapped-surface approach of general relativity. Accounting for electric charge of the partons could reduce the black hole cross-section by one to four orders of magnitude at the LHC. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

4. BLACK HOLE CROSS-SECTION AT THE LHC.

Author

GINGRICH, DOUGLAS M.

Subjects
*LARGE Hadron Collider, *COLLIDERS (Nuclear physics), *SUPERCOLLIDERS, *HADRON colliders
Abstract

Black hole production at the Large Hadron Collider (LHC) was first discussed in 1999. Since then, much work has been performed in predicting the black hole cross-section. In light of the start up of the LHC, it is now timely to review the state of these calculations. We review the uncertainties in estimating the black hole cross-section in higher dimensions. One would like to make this estimate as precise as possible since the predicted values, or lower limits, obtain for the fundamental Planck scale and number of extra dimensions from experiments will depend directly on the accuracy of the cross-section. Based on the current knowledge of the cross-section, we give a range of lower limits on the fundamental Planck scale that could be obtained at LHC energies. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

5. Monte Carlo event generator for black hole production and decay in proton–proton collisions – QBH version 1.02

Author

Gingrich, Douglas M.

Subjects
*MONTE Carlo method, *SUPERMASSIVE black holes, *PROTON-proton interactions, *QUANTUM theory, *COMPUTER interfaces, *GAUGE field theory, *SYMMETRY (Physics), *PROGRAMMING languages
Abstract

Abstract: We describe the Monte Carlo event generator for black hole production and decay in proton–proton collisions – QBH version 1.02. The generator implements a model for quantum black hole production and decay based on the conservation of local gauge symmetries and democratic decays. The code in written entirely in C++ and interfaces to the PYTHIA 8 Monte Carlo code for fragmentation and decays. Program summary: Program title: QBH Catalogue identifier: AEGU_v1_0 Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AEGU_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html No. of lines in distributed program, including test data, etc.: 10 048 No. of bytes in distributed program, including test data, etc.: 118 420 Distribution format: tar.gz Programming language: C++ Computer: x86 Operating system: Scientific Linux, Mac OS X RAM: 1 GB Classification: 11.6 External routines: PYTHIA 8130 (http://home.thep.lu.se/~torbjorn/pythiaaux/present.html) and LHAPDF (http://projects.hepforge.org/lhapdf/) Nature of problem: Simulate black hole production and decay in proton–proton collision. Solution method: Monte Carlo simulation using importance sampling. Running time: Eight events per second. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

6. Quantum black holes in the horizon quantum mechanics model at the Large Hadron Collider.

Author

Gingrich, Douglas M. and Undseth, Brennan

Subjects
*LARGE Hadron Collider, *HAWKING radiation, *BLACK holes, *QUANTUM mechanics, *SCHWARZSCHILD black holes, *PLANCK scale, *CENTER of mass
Abstract

Quantum black hole production at the Large Hadron Collider is investigated using the horizon quantum mechanics model. This model has novel implications for how black holes might be observed in collider experiments. Black hole production is predicted to be possible below the Planck scale, thus leading to the intriguing possibility that black holes could be produced even if the Planck scale is slightly above the collider center of mass energy. In addition, the usual anticipated resonance in the black hole mass distribution is significantly widened in this model. For values of the Planck scale above the current lower limits, the shape of the black hole mass distribution is almost independent of the Planck scale and depends more on the number of extra dimensions. These model features suggest the need for alternative search strategies in collider experiments. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results