Maximal D=5 trombone supergravity from M5-branes and SU(2)-flavoured 𝒩=1 class 𝒮 operator spectra

@misc{bhattacharya2026maximal,
  title = {{Maximal $D=5$ trombone supergravity from M5-branes and $\mathrmSU(2)$-flavoured $\mathcalN=1$ class $\mathcalS$ operator spectra}},
  author = {Ritabrata Bhattacharya and Abhay Katyal and Oscar Varela},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2607.25952},
  eprint = {2607.25952},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.25952},
  note = {CC0},
}

TY  - UNPB
TI  - Maximal D=5 trombone supergravity from M5-branes and SU(2)-flavoured 𝒩=1 class 𝒮 operator spectra
AU  - Ritabrata Bhattacharya
AU  - Abhay Katyal
AU  - Oscar Varela
PY  - 2026
DA  - 2026/10/28
PB  - arXiv
DO  - 10.48550/arxiv.2607.25952
UR  - https://arxiv.org/abs/2607.25952
AB  - We recently presented a new D=5 𝒩=8 gauged supergravity involving the local trombone scaling symmetry. It arises by consistent truncation of M-theory on the internal space of the Maldacena-Núñez AdS_5 solution dual to the 𝒩=2 four-dimensional superconformal field theory (SCFT) of class 𝒮 associated to M5-branes wrapped on an unpunctured Riemann surface. Using exceptional generalised geometry/field theory, we extend that construction to show that the same D=5 𝒩=8 supergravity also arises by consistent truncation of D=11 supergravity on the family of 𝒩=1 M5-brane-wrapped solutions of Bah-Beem-Bobev-Wecht, including the 𝒩=1 Maldacena-Núñez (MN1) configuration. Then, using recently derived mass matrices, we compute universal sectors of the Kaluza-Klein spectrum on the MN1 solution. In general, this universal spectrum is only locally defined, and we give a prescription for extracting globally defined subsectors thereof. This globally defined universal Kaluza-Klein spectrum is dual to a universal sector of the light operator spectrum of the SU(2)-flavoured 𝒩=1 class 𝒮 SCFT dual to MN1.
ER  -