Skip to content
DraconiticResearch
Search Sources API
194,226 studies31 sourcesUpdated 48 min ago
Peer-reviewedCC BY 4.0Journal of High Energy Physics

One-loop mass corrections and decay widths of Type II heavy string states

  • Massimo Bianchi1,2
  • Maurizio Firrotta3
  • Lorenzo Grimaldi1,2,4
4 affiliations
  1. 1Università di Roma Tor Vergata
  2. 2INFN sezione di Roma Tor Vergata
  3. 3Fudan University
  4. 4Centro Ricerche Enrico Fermi
Open at sourcePDFDOICite

Abstract

A bstract : We approach a systematic investigation of the one-loop mass corrections to (super-)string massive higher-spin states. While the imaginary part of the relevant amplitudes is finite, being related to the width of the decay of the states into two lower-mass states at tree level, the real part is generally IR-divergent and needs regularization and renormalization. We mostly focus on states of the first Regge trajectory in the NS-NS sector of Type-II string theories. We explicitly derive a closed-form expression for the integral over the insertion point, relying on properties of elliptic functions and lattice sums. We then regularize the IR divergent integral over the modular parameter of the torus, applying the iε -prescription in string theory. As a result we compute the desired mass corrections up to level N = 10 and analyze their behavior at increasing N . Finally, we speculate on the existence of mixing among lower-spin states and conjecture that the one-loop mass matrix be governed by some random matrix theory.

Related

  1. Mass spectrum and decay widths of charmonium-like mesons: A diabatic approach with complex scaling
    Zi-Zhao Zhang, Bo-Chao Liu
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsarXiv
  2. α-decay widths from two-potential approaches and WKB prefactors
    Nguyen Thi Huyen Nga, Le Quoc Thai, Chau Van Tao +2
    arXivPreprintarXiv licenceFull textNuclear physicsarXiv
  3. Threshold Corrections in Heterotic String Theory from Conformal Perturbation Theory
    Dilan Nur Demirtaş, Christoph A. Keller, Manki Kim
    arXivPreprintarXiv licenceFull textHigh-energy & particle physicsarXiv
  4. Soft Contributions Stabilize NNLO QCD Corrections to Quarkonium Production and Decay
    Luca Maxia, Hua-Sheng Shao, Lukas Simon +1
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsNuclear physicsarXiv
  5. The decay rate of metastable cosmic strings beyond the thin-string approximation
    Valerie Domcke, Yu Hamada
    arXivPreprintarXiv licenceFull textCosmologyHigh-energy & particle physicsarXiv

Cite

BibTeXRIS
BibTeX
@article{bianchi2026oneloop,
  title = {{One-loop mass corrections and decay widths of Type II heavy string states}},
  author = {Massimo Bianchi and Maurizio Firrotta and Lorenzo Grimaldi},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)173},
  url = {https://link.springer.com/article/10.1007/JHEP10(2026)173},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - One-loop mass corrections and decay widths of Type II heavy string states
AU  - Massimo Bianchi
AU  - Maurizio Firrotta
AU  - Lorenzo Grimaldi
PY  - 2026
DA  - 2026/10/15
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)173
UR  - https://link.springer.com/article/10.1007/JHEP10(2026)173
AB  - A bstract : We approach a systematic investigation of the one-loop mass corrections to (super-)string massive higher-spin states. While the imaginary part of the relevant amplitudes is finite, being related to the width of the decay of the states into two lower-mass states at tree level, the real part is generally IR-divergent and needs regularization and renormalization. We mostly focus on states of the first Regge trajectory in the NS-NS sector of Type-II string theories. We explicitly derive a closed-form expression for the integral over the insertion point, relying on properties of elliptic functions and lattice sums. We then regularize the IR divergent integral over the modular parameter of the torus, applying the iε -prescription in string theory. As a result we compute the desired mass corrections up to level N = 10 and analyze their behavior at increasing N . Finally, we speculate on the existence of mixing among lower-spin states and conjecture that the one-loop mass matrix be governed by some random matrix theory.
SN  - 1029-8479
ER  -