scholarly journals SUPERSYMMETRY VERSUS BLACK HOLES AT THE LHC

2008 ◽  
Vol 23 (35) ◽  
pp. 2987-2996 ◽  
Author(s):  
ARUNAVA ROY ◽  
MARCO CAVAGLIÀ
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Large Hadron Collider ◽  
Extra Dimensions ◽  
Hadron Collider ◽  
New Physics ◽  
Event Shape ◽  
High Transverse Momentum ◽  
Dilepton Invariant Mass

Supersymmetry and extra dimensions are the two most promising candidates for new physics at the TeV scale. Supersymmetric particles or extra-dimensional effects could soon be observed at the Large Hadron Collider. We propose a simple but effective method to discriminate the two models: the analysis of isolated leptons with high transverse momentum. Black hole events are simulated with the CATFISH black hole generator. Supersymmetry simulations use a combination of PYTHIA and ISAJET, the latter providing the mass spectrum. Our results show that the measure of the dilepton invariant mass provides a promising signature to differentiate supersymmetry and black hole events at the Large Hadron Collider. Analysis of event-shape variables and multilepton events complement and strengthen this conclusion.

scholarly journals SIGNATURES FOR BLACK HOLE PRODUCTION FROM HADRONIC OBSERVABLES AT THE LARGE HADRON COLLIDER

2007 ◽  
Vol 16 (03) ◽  
pp. 841-851 ◽  
Author(s):  
THOMAS J. HUMANIC ◽  
BENJAMIN KOCH ◽  
HORST STÖCKER
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Large Hadron Collider ◽  
Particle Tracking ◽  
Extra Dimensions ◽  
Large Extra Dimensions ◽  
Hadron Collider ◽  
Hierarchy Problem ◽  
Tracking Detector ◽  
Weak Forces

The concept of Large Extra Dimensions (LED) provides a way of solving the Hierarchy Problem which concerns the weakness of gravity compared with the strong and electro-weak forces. A consequence of LED is that miniature Black Holes (mini-BHs) may be produced at the Large Hadron Collider in p + p collisions. The present work uses the CHARYBDIS mini-BH generator code to simulate the hadronic signal which might be expected in a mid-rapidity particle tracking detector from the decay of these exotic objects if indeed they are produced. An estimate is also given for Pb + Pb collisions.

scholarly journals Black Component of Dark Matter

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
A. V. Grobov ◽  
S. G. Rubin ◽  
V. Yu. Shalamova
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Mass Spectrum ◽  
Energy Density ◽  
Extra Dimensions ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Specific Mass ◽  
Black Hole Formation

A mechanism of primordial black hole formation with specific mass spectrum is discussed. It is shown that these black holes could contribute to the energy density of dark matter. Our approach is elaborated in the framework of universal extra dimensions.

scholarly journals SEARCH AND IDENTIFICATION OF EXTRA SPATIAL DIMENSIONS AT LHC

2005 ◽  
Vol 20 (11) ◽  
pp. 2232-2236 ◽  
Author(s):  
ERIK W. DVERGSNES ◽  
PER OSLAND ◽  
ALEXANDER A. PANKOV ◽  
NELLO PAVER
Keyword(s):  
Large Hadron Collider ◽  
Pair Production ◽  
Extra Dimensions ◽  
Hadron Collider ◽  
New Physics ◽  
Lepton Pair ◽  
Cern Large Hadron Collider ◽  
Lepton Pair Production ◽  
Center Edge ◽  
Spatial Dimensions

We present an analysis, based on the center–edge asymmetry, to distinguish effects of extra dimensions within the Arkani-Hamed–Dimopoulos–Dvali (ADD) and Randall–Sundrum (RS) scenarios from other new physics effects in lepton-pair production at the CERN Large Hadron Collider LHC. Spin-2 and spin-1 exchange can be distinguished up to an ADD cutoff scale, MH, of about 5 TeV, at the 95% CL. In the RS scenario, spin-2 resonances can be identified in most of the favored parameter space.

scholarly journals TRANSIENT ASTROPHYSICAL PULSES AND QUANTUM GRAVITY

2008 ◽  
Vol 17 (13n14) ◽  
pp. 2495-2500 ◽  
Author(s):  
MICHAEL KAVIC ◽  
DJORDJE MINIC ◽  
JOHN H. SIMONETTI
Keyword(s):  
Black Hole ◽  
Large Hadron Collider ◽  
Quantum Gravity ◽  
Extra Dimension ◽  
Hadron Collider ◽  
New Physics ◽  
Energy Scale ◽  
Primordial Black Hole ◽  
Fundamental Physics ◽  
Near Future

Searches for transient astrophysical pulses could open an exciting new window into the fundamental physics of quantum gravity. In particular, an evaporating primordial black hole in the presence of an extra dimension can produce a detectable transient pulse. Observations of such a phenomenon can in principle explore the electroweak energy scale, indicating that astrophysical probes of quantum gravity can successfully complement the exciting new physics expected to be discovered in the near future at the Large Hadron Collider.

scholarly journals Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider

2012 ◽  
Vol 108 (11) ◽  
Author(s):  
S. Chatrchyan ◽  
V. Khachatryan ◽  
A. M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
...  
Keyword(s):  
Mass Spectrum ◽  
Large Hadron Collider ◽  
Extra Dimensions ◽  
Hadron Collider

scholarly journals QUANTITATIVE CALCULATIONS FOR BLACK HOLE PRODUCTION AT THE LARGE HADRON COLLIDER

2009 ◽  
Vol 24 (06) ◽  
pp. 1105-1118
Author(s):  
NICOLAS BOCK ◽  
THOMAS J. HUMANIC
Keyword(s):  
Black Hole ◽  
Large Hadron Collider ◽  
Particle Tracking ◽  
Extra Dimensions ◽  
Large Extra Dimensions ◽  
Hadron Collider ◽  
High Energy ◽  
The Other ◽  
Tracking Detector ◽  
Quantitative Calculations

The framework of large extra dimensions provides a way to explain why gravity is weaker than the other forces in nature. A consequence of this model is the possible production of D-dimensional black holes in high energy p–p collisions at the Large Hadron Collider. The present work uses the CATFISH black hole generator to study quantitatively how these events could be observed in the hadronic channel at midrapidity using a particle-tracking detector.

scholarly journals The Merger Rate of Black Holes in a Primordial Black Hole Cluster

Physics ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 372-378
Author(s):  
Viktor D. Stasenko ◽  
Alexander A. Kirillov
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Star Clusters ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
Central Black Hole ◽  
Solar Mass ◽  
Merger Rate

In this paper, the merger rate of black holes in a cluster of primordial black holes (PBHs) is investigated. The clusters have characteristics close to those of typical globular star clusters. A cluster that has a wide mass spectrum ranging from 10−2 to 10M⊙ (Solar mass) and contains a massive central black hole of the mass M•=103M⊙ is considered. It is shown that in the process of the evolution of cluster, the merger rate changed significantly, and by now, the PBH clusters have passed the stage of active merging of the black holes inside them.

scholarly journals B PHYSICS AT LHCb

2008 ◽  
Vol 23 (32) ◽  
pp. 5117-5136 ◽  
Author(s):  
MONICA PEPE ALTARELLI ◽  
FREDERIC TEUBERT
Keyword(s):  
Large Hadron Collider ◽  
Standard Model ◽  
B Physics ◽  
Hadron Collider ◽  
New Physics ◽  
Concise Review ◽  
The Standard Model ◽  
And Performance ◽  
Detector Design

LHCb is a dedicated detector for b physics at the LHC (Large Hadron Collider). In this paper we present a concise review of the detector design and performance together with the main physics goals and their relevance for a precise test of the Standard Model and search of New Physics beyond it.

scholarly journals Utilizing Unsupervised Machine Learning in BSM Physics Searches At The LHC

2020 ◽  
Vol 245 ◽  
pp. 06021
Author(s):  
Adam Leinweber ◽  
Martin White
Keyword(s):  
Machine Learning ◽  
Large Hadron Collider ◽  
Hadron Collider ◽  
New Physics ◽  
Machine Learning Technique ◽  
Unsupervised Machine Learning ◽  
Learning Technique ◽  
Bsm Physics ◽  
Supersymmetric Particles ◽  
One Machine

Recent searches for supersymmetric particles at the Large Hadron Collider have been unsuccessful in detecting any BSM physics. This is partially because the exact masses of supersymmetric particles are not known, and as such, searching for them is very difficult. The method broadly used in searching for new physics requires one to optimise on the signal being searched for, potentially suppressing sensitivity to new physics which may actually be present that does not resemble the chosen signal. The problem with this approach is that, in order to detect something with this method, one must already know what to look for. I will showcase one machine-learning technique that can be used to define a “signal-agnostic” search. This is a search that does not make any assumptions about the signal being searched for, allowing it to detect a signal in a more general way. This method is applied to simulated BSM physics data and the results are explored.

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