M5-branes and Wilson surfaces

Ωcccproduction in high energy nuclear collisions

“…With the inelastic proton cross section σ pp = 62 mb, the rapidity range η = 1.8, and N coll = 2000 for the most central collision, we have σ = 9 nb, which is much larger than the cross section 0.06-0.13 nb at 7 TeV and 0.1-0.2 nb at 14 TeV in p+p collisions at mid rapidity |η| < 2.5 [45]. It is necessary to point out that the tightly bound states of heavy quarks are in principle continuously produced in the medium above T c and suffer from dissociation due to the interaction with the medium [46].…”

“…Since ccc is the ground state of triply charmed baryons, its decay is via weak interaction, like the non-leptonic channel ccc → sss + 3π + [45]. Taking a simple statistical model calculation for central Pb+Pb collisions at the LHC energy, there are roughly 10 −7 uncorrelated sss + 3π + quadruplets around the ccc mass with width 3 D + .…”

Holographic entanglement entropy from probe M-theory branes

“…A subset of the M5-brane embeddings we consider are believed to be dual to half-BPS Wilson surface operators, in representations described by Young tableaux with number of boxes N of the order of the rank (∼ M ) of the gauge algebra [16][17][18]. This is analogous to the holographic description of Wilson lines in N = 4 super Yang-Mills theory (SYM) by D-branes [41][42][43][44].…”

From the Weyl Anomaly to Entropy of Two-Dimensional Boundaries and Defects

“…We consider so-called Wilson surface defects [41], generalizations of Wilson lines to the 6D N = (2, 0) SUSY CFT, which are specified by an su(M ) representation and a 2D surface. When M 1 the theory is holographically dual to 11D SUGRA on AdS 7 × S 4 [35], and Wilson surfaces are dual to M2-branes, or M5-branes with M2-brane flux, reaching the AdS 7 boundary at the 2D surface [42][43][44][45][46].…”