Signatures for Black Hole Production From Hadronic Observables at the Large Hadron Collider

Abstract

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 electroweak 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.

An introduction to mini black holes at LHC

“…by the p t distributions, multiplicities, and angular correlations [14,15] of the Hawking evaporated SM particles. Here we propose a new signal for uncharged BHRs, namely the search for events with ∼TeV missing energy plus a quenched high p T hadron spectrum in the same event.…”

“…Even more since it has been pointed out that, according to the theories with large extra dimensions (LXDs) [2] black holes (BHs) might even be produced at the Large Hadron Collider (LHC) [3]. We review possible observables of this conjecture with special emphasis on the unclear final fate of such a BH and the possible existence of black hole remnants (BHR) [4][5][6][7][8][9][10][11][12][13][14][15]. When doing this, we will rely on the numerous estimates of the black hole production cross section, which agree at the level of their order of magnitude [16].…”

Early black hole signals at the LHC

“…In figure (2) the summed pr distributions for simulated BH and BHR events are shown [25]. As electrically charged BHRs would leave an ionizing track in the detector, it would be possible to measure the BHR mass with high precision [26]. In the search for a model independent signature it was suggested to look for the suppression of hadronic di-jet events above the BH production threshold (at 2ET > Mf) energy [18,39,46,55].…”

“…Even more since it has been conjectured that black holes (BHs) might even be produced in future colliders [2,3,4,5], in the presence of additional compactified large extra dimensions (LXDs) [6]. However, the final state of the BH is not well understood and it is argued that it forms a stable final state instead of evaporating completely [7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]. A prediction from quantum field theory in curved spacetime is that black holes emit thermal radiation.…”

Quantitative Calculations for Black Hole Production at the Large Hadron Collider

“…The flexibility of CATFISH allows the study of the different theoretical models of BH formation. A comparison between the features of CATFISH and CHARYBDIS has been carried out before 8 and a similar study of the observables of BH at the LHC has also been done using the CHARYBDIS Code 3,9 . CATFISH includes the following three models to calculate the BH evolution:…”