Zobrazeno 1 - 10
of 524
pro vyhledávání: '"Drummond, J. P."'
Scattering amplitudes in planar $\mathcal{N}=4$ super Yang-Mills theory exhibit singularities which reflect various aspects of the cluster algebras associated to the Grassmannians ${\rm Gr}(4,n)$ and their tropical counterparts. Here we investigate t
Externí odkaz:
http://arxiv.org/abs/2212.08931
We study string corrections to one-loop amplitudes of single-particle operators ${\cal O}_p$ in $AdS_5 \times S^5$. The tree-level correlators in supergravity enjoy an accidental 10d conformal symmetry. Consequently, one observes a partial degeneracy
Externí odkaz:
http://arxiv.org/abs/2207.13084
Autor:
Drummond, J. M., Paul, H.
Publikováno v:
JHEP 08 (2022) 275
We describe a construction of the two-loop amplitude of four graviton supermultiplets in AdS$_5\times$S$^5$. We start from an ansatz for a preamplitude from which we generate the full amplitude under the action of a specific Casimir operator. The ans
Externí odkaz:
http://arxiv.org/abs/2204.01829
We revisit the four-point function of super gluons in $AdS_5 \times S^3$ in the spirit of the large $p$ formalism and show how the integrand of a generalised Mellin transform satisfies various non-trivial properties such as $U(1)$ decoupling identity
Externí odkaz:
http://arxiv.org/abs/2202.09837
Publikováno v:
JHEP 11 (2021) 109
The genus zero contribution to the four-point correlator $\langle {\cal O}_{p_1}{\cal O}_{p_2}{\cal O}_{p_3}{\cal O}_{p_4}\rangle$ of half-BPS single-particle operators ${\cal O}_p$ in $\mathcal{N}=4$ super Yang-Mills at strong coupling computes the
Externí odkaz:
http://arxiv.org/abs/2012.12092
Publikováno v:
JHEP 12 (2021) 072
We discuss the string corrections to one-loop amplitudes in AdS$_5\times$S$^5$, focussing on their expressions in Mellin space. We present the leading $(\alpha')^3$ corrections to the family of correlators $\langle \mathcal{O}_2 \mathcal{O}_2 \mathca
Externí odkaz:
http://arxiv.org/abs/2008.01109
Autor:
Aprile, F., Drummond, J. M., Heslop, P., Paul, H., Sanfilippo, F., Santagata, M., Stewart, A.
We consider a set of half-BPS operators in $\mathcal{N}=4$ super Yang-Mills theory which are appropriate for describing single-particle states of superstring theory on AdS${}_5 \times S^5$. These single-particle operators are defined to have vanishin
Externí odkaz:
http://arxiv.org/abs/2007.09395
We make an ansatz for the Mellin representation of the four-point amplitude of half-BPS operators of arbitrary charges at order $\lambda^{-\frac{5}{2}}$ in an expansion around the supergravity limit. Crossing symmetry and a set of constraints on the
Externí odkaz:
http://arxiv.org/abs/2004.07282
Autor:
Drummond, J. M., Paul, H.
Publikováno v:
JHEP 03 (2021) 038
We consider $\alpha'$ corrections to the one-loop four-point correlator of the stress-tensor multiplet in $\mathcal{N}=4$ super Yang-Mills at order $1/N^4$. Holographically, this is dual to string corrections of the one-loop supergravity amplitude on
Externí odkaz:
http://arxiv.org/abs/1912.07632
Autor:
Del Duca, V., Druc, S., Drummond, J. M., Duhr, C., Dulat, F., Marzucca, R., Papathanasiou, G., Verbeek, B.
Publikováno v:
Phys. Rev. Lett. 124, 161602 (2020)
We propose an all-loop expression for scattering amplitudes in planar N=4 super Yang-Mills theory in multi-Regge kinematics valid for all multiplicities, all helicity configurations and arbitrary logarithmic accuracy. Our expression is arrived at fro
Externí odkaz:
http://arxiv.org/abs/1912.00188