Meson Spectroscopy in AdS/CFT with Flavour

By M. Kruczenski, D. Mateos, R. Myers, D. Winters. 2003

544 citations recorded by the source corpus.

We compute the meson spectrum of an = 2 super Yang-Mills theory with fundamental matter from its dual string theory on AdS5 × S5 with a D7-brane probe [1]. For scalar and vector mesons with arbitrary R-charge the spectrum is computed in closed form by solving the equations for D7-brane fluctuations; for matter with non-zero mass mq it is discrete, exhibits a mass gap of order mq/(gsN)1/2 and furnishes representations of SO(5) even though the manifest global symmetry of the theory is only SO(4). The spectrum of mesons with large spin J is obtained from semiclassical, rotating open strings attached to the D7-brane. It displays Regge-like behaviour for J > (gsN)1/2 it corresponds to that of two non-relativistic quarks bound by a Coulomb potential. Meson interactions, baryons and `giant gauge bosons' are briefly discussed.

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b48c877e36bbbf1147f9307c119d510e76f65c12

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. T. Takayanagi
2. R. Myers
3. T. Nishioka
4. S. Kuperstein
5. A. O’Bannon
6. S. Gubser
7. K. Landsteiner
8. Hong Liu

In Nuclear and High Energy Physics

1. R. Myers
2. D. Mateos
3. T. Takayanagi
4. S. Hartnoll
5. S. Gubser
6. V. Hubeny
7. M. Rangamani
8. Johanna Erdmenger

Citations in the corpus

• Superconductivity from gauge/gravity duality with flavor (2008, methodology): “Flavor degrees are added by embedding Nf coincident probe D7 branes with Nf ≪ Nc into the AdS black hole background [10, 11, 12].”
• Holographic spectral functions and diffusion constants for fundamental matter (2007, methodology): “, corresponding to the meson spectrum found in [11].”
• Energy loss of a heavy quark moving through Script N = 4 supersymmetric Yang-Mills plasma (2006, background): “The static potential between a heavy quark and antiquark in N = 4 SYM rises linearly at short distance before switching to a Coulombic form at a cross-over distance set by the inverse quark mass [39].”
• Metallic AdS/CFT (2007, background): “The only way for SD7 to remain real all the way from z = zH to z = 0, then, is if both numerator and denominator change sign at the same special value3 z = z∗ defined by the equations |gtt|gxx − (2πα′)2E2 = 0 (3.1) |gtt|g3xx cos6 θ(z∗) + |gtt|D2 − gxxB2 N 2(2πα′)2 = 0 (3.2) where all metric…”
• Probing flavored mesons of confining gauge theories by supergravity (2003, methodology): “The first goal was in fact proposed but not explicitly proven in [5] and as for the second goal recall that the computation in [7] involves N = 2 SQCD which is not a confining gauge theory.”
• Mesons in gauge/gravity duals (2007, methodology): “It is possible to extract the bound state masses [17].”
• Holographic meson melting (2006, background): “The spectrum is discrete with a mass gap M ∼ mq/ √ λ and grows linearly [9,21].”
• Chiral symmetry breaking and pions in nonsupersymmetric gauge / gravity duals (2004, methodology): “This was solved exactly in [ 31 ], where it was shown that the solutions can be written as hyper-”
• Thermodynamics of the brane (2007, methodology): “In the last equality, we are relating M̄ to the meson mass gap in the D3/D7 theory at zero temperature [9].”
• Flavor superconductivity from gauge/gravity duality (2009, methodology): “The grey lines correspond to the supersymmetric mass spectrum calculated in [24].”