Anchordoqui, Luis A.; Antoniadis, Ignatios; Goldberg, Haim; Huang, Xing; Lüst, Dieter; Taylor, Tomasz R. (2016). 750 GeV diphotons from closed string states. Physics letters. B, 755, pp. 312-315. Elsevier 10.1016/j.physletb.2016.02.024
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We show that low-mass-scale string compactifications, with a generic D-brane configuration that realizes the standard model by open strings, can explain the relatively broad peak in the diphoton invariant mass spectrum at 750 GeV recently reported by the ATLAS and CMS Collaborations. Under reasonable assumptions, we demonstrate that the excess could originate from a closed string (possibly axionic) excitation φ that has a coupling with gauge kinetic terms. We estimate the φ production rate from photon–photon fusion in elastic pp scattering, using the effective photon and narrow width approximations. For string scales above today’s lower limit Ms ≈ 7 TeV, we can accommodate the diphoton rate observed at Run II while maintaining consistency with Run I data.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Antoniadis, Ignatios |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0370-2693 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
07 Sep 2016 10:51 |
Last Modified: |
05 Dec 2022 14:58 |
Publisher DOI: |
10.1016/j.physletb.2016.02.024 |
ArXiv ID: |
1512.08502 |
BORIS DOI: |
10.7892/boris.86324 |
URI: |
https://boris.unibe.ch/id/eprint/86324 |
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