750 GeV diphotons from closed string states

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 reasonabl...

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Detalles Bibliográficos
Autores principales: Anchordoqui, Luis Alfredo, Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lüst, Dieter, Taylor, Tomasz R.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Exactas
Física
Scalars
Diphotons
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86709
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86709
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Scalars
Diphotons
spellingShingle Ciencias Exactas
Física
Scalars
Diphotons
Anchordoqui, Luis Alfredo
Antoniadis, Ignatios
Goldberg, Haim
Huang, Xing
Lüst, Dieter
Taylor, Tomasz R.
750 GeV diphotons from closed string states
topic_facet Ciencias Exactas
Física
Scalars
Diphotons
description 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 M<sub>s</sub>≈7 TeV, we can accommodate the diphoton rate observed at Run II while maintaining consistency with Run I data.
format Articulo
Articulo
author Anchordoqui, Luis Alfredo
Antoniadis, Ignatios
Goldberg, Haim
Huang, Xing
Lüst, Dieter
Taylor, Tomasz R.
author_facet Anchordoqui, Luis Alfredo
Antoniadis, Ignatios
Goldberg, Haim
Huang, Xing
Lüst, Dieter
Taylor, Tomasz R.
author_sort Anchordoqui, Luis Alfredo
title 750 GeV diphotons from closed string states
title_short 750 GeV diphotons from closed string states
title_full 750 GeV diphotons from closed string states
title_fullStr 750 GeV diphotons from closed string states
title_full_unstemmed 750 GeV diphotons from closed string states
title_sort 750 gev diphotons from closed string states
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86709
work_keys_str_mv AT anchordoquiluisalfredo 750gevdiphotonsfromclosedstringstates
AT antoniadisignatios 750gevdiphotonsfromclosedstringstates
AT goldberghaim 750gevdiphotonsfromclosedstringstates
AT huangxing 750gevdiphotonsfromclosedstringstates
AT lustdieter 750gevdiphotonsfromclosedstringstates
AT taylortomaszr 750gevdiphotonsfromclosedstringstates
bdutipo_str Repositorios
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