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Title: Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT

Abstract

We present limits for the compactification scale in the theory of Large Extra Dimensions (LED) proposed by Arkani-Hamed, Dimopoulos, and Dvali. We use 11 months of data from the Fermi Large Area Telescope (Fermi-LAT) to set gamma ray flux limits for 6 gamma-ray faint neutron stars (NS). To set limits on LED we use the model of Hannestad and Raffelt (HR) that calculates the Kaluza-Klein (KK) graviton production in supernova cores and the large fraction subsequently gravitationally bound around the resulting NS. The predicted decay of the bound KK gravitons to {gamma}{gamma} should contribute to the flux from NSs. Considering 2 to 7 extra dimensions of the same size in the context of the HR model, we use Monte Carlo techniques to calculate the expected differential flux of gamma-rays arising from these KK gravitons, including the effects of the age of the NS, graviton orbit, and absorption of gamma-rays in the magnetosphere of the NS. We compare our Monte Carlo-based differential flux to the experimental differential flux using maximum likelihood techniques to obtain our limits on LED. Our limits are more restrictive than past EGRET-based optimistic limits that do not include these important corrections. Additionally, our limits are more stringentmore » than LHC based limits for 3 or fewer LED, and comparable for 4 LED. We conclude that if the effective Planck scale is around a TeV, then for 2 or 3 LED the compactification topology must be more complicated than a torus.« less

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1049752
Report Number(s):
SLAC-PUB-14976
arXiv:1201.2460; TRN: US1204580
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
JCAP 1202:012,2012
Additional Journal Information:
Journal Name: JCAP 1202:012,2012
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABSORPTION; COMPACTIFICATION; DECAY; DIMENSIONS; GRAVITONS; NEUTRON STARS; PRODUCTION; TELESCOPES; TOPOLOGY; Astrophysics, Phenomenology-HEP,ASTRO, HEPPH

Citation Formats

Ajello, M, /SLAC /KIPAC, Menlo Park, Baldini, L, /INFN, Pisa, Barbiellini, G, /INFN, Trieste /Trieste U., Bastieri, D, /INFN, Padua /Padua U., Bechtol, K, /SLAC /KIPAC, Menlo Park, Bellazzini, R, /INFN, Pisa, Berenji, B, /SLAC /KIPAC, Menlo Park, Bloom, E D, /SLAC /KIPAC, Menlo Park, Bonamente, E, /INFN, Perugia /Perugia U., Borgland, A W, /SLAC /KIPAC, Menlo Park, Bregeon, J, /INFN, Pisa, Brigida, M, /Bari Polytechnic /INFN, Bari, Bruel, P, /Ecole Polytechnique, Buehler, R, /SLAC /KIPAC, Menlo Park, Buson, S, /INFN, Padua /Padua U., Caliandro, G A, /CSIC, Catalunya, Cameron, R A, /SLAC /KIPAC, Menlo Park, Caraveo, P A, /Brera Observ., Casandjian, J M, /AIM, Saclay, Cecchi, C, /INFN, Perugia /Perugia U., Charles, E, /SLAC /KIPAC, Menlo Park /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /ASDC, Frascati /Perugia U. /SLAC /KIPAC, Menlo Park /Montpellier U. /Stockholm U. /Stockholm U., OKC /Royal Swedish Acad. Sci. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Hiroshima U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /Bari Polytechnic /INFN, Bari /Bologna Observ. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /AIM, Saclay /Alabama U., Huntsville /INFN, Padua, and /more authors. Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT. United States: N. p., 2012. Web. doi:10.2172/1049752.
Ajello, M, /SLAC /KIPAC, Menlo Park, Baldini, L, /INFN, Pisa, Barbiellini, G, /INFN, Trieste /Trieste U., Bastieri, D, /INFN, Padua /Padua U., Bechtol, K, /SLAC /KIPAC, Menlo Park, Bellazzini, R, /INFN, Pisa, Berenji, B, /SLAC /KIPAC, Menlo Park, Bloom, E D, /SLAC /KIPAC, Menlo Park, Bonamente, E, /INFN, Perugia /Perugia U., Borgland, A W, /SLAC /KIPAC, Menlo Park, Bregeon, J, /INFN, Pisa, Brigida, M, /Bari Polytechnic /INFN, Bari, Bruel, P, /Ecole Polytechnique, Buehler, R, /SLAC /KIPAC, Menlo Park, Buson, S, /INFN, Padua /Padua U., Caliandro, G A, /CSIC, Catalunya, Cameron, R A, /SLAC /KIPAC, Menlo Park, Caraveo, P A, /Brera Observ., Casandjian, J M, /AIM, Saclay, Cecchi, C, /INFN, Perugia /Perugia U., Charles, E, /SLAC /KIPAC, Menlo Park /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /ASDC, Frascati /Perugia U. /SLAC /KIPAC, Menlo Park /Montpellier U. /Stockholm U. /Stockholm U., OKC /Royal Swedish Acad. Sci. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Hiroshima U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /Bari Polytechnic /INFN, Bari /Bologna Observ. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /AIM, Saclay /Alabama U., Huntsville /INFN, Padua, & /more authors. Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT. United States. https://doi.org/10.2172/1049752
Ajello, M, /SLAC /KIPAC, Menlo Park, Baldini, L, /INFN, Pisa, Barbiellini, G, /INFN, Trieste /Trieste U., Bastieri, D, /INFN, Padua /Padua U., Bechtol, K, /SLAC /KIPAC, Menlo Park, Bellazzini, R, /INFN, Pisa, Berenji, B, /SLAC /KIPAC, Menlo Park, Bloom, E D, /SLAC /KIPAC, Menlo Park, Bonamente, E, /INFN, Perugia /Perugia U., Borgland, A W, /SLAC /KIPAC, Menlo Park, Bregeon, J, /INFN, Pisa, Brigida, M, /Bari Polytechnic /INFN, Bari, Bruel, P, /Ecole Polytechnique, Buehler, R, /SLAC /KIPAC, Menlo Park, Buson, S, /INFN, Padua /Padua U., Caliandro, G A, /CSIC, Catalunya, Cameron, R A, /SLAC /KIPAC, Menlo Park, Caraveo, P A, /Brera Observ., Casandjian, J M, /AIM, Saclay, Cecchi, C, /INFN, Perugia /Perugia U., Charles, E, /SLAC /KIPAC, Menlo Park /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /ASDC, Frascati /Perugia U. /SLAC /KIPAC, Menlo Park /Montpellier U. /Stockholm U. /Stockholm U., OKC /Royal Swedish Acad. Sci. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Hiroshima U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /Bari Polytechnic /INFN, Bari /Bologna Observ. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /AIM, Saclay /Alabama U., Huntsville /INFN, Padua, and /more authors. 2012. "Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT". United States. https://doi.org/10.2172/1049752. https://www.osti.gov/servlets/purl/1049752.
@article{osti_1049752,
title = {Limits on Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT},
author = {Ajello, M and /SLAC /KIPAC, Menlo Park and Baldini, L and /INFN, Pisa and Barbiellini, G and /INFN, Trieste /Trieste U. and Bastieri, D and /INFN, Padua /Padua U. and Bechtol, K and /SLAC /KIPAC, Menlo Park and Bellazzini, R and /INFN, Pisa and Berenji, B and /SLAC /KIPAC, Menlo Park and Bloom, E D and /SLAC /KIPAC, Menlo Park and Bonamente, E and /INFN, Perugia /Perugia U. and Borgland, A W and /SLAC /KIPAC, Menlo Park and Bregeon, J and /INFN, Pisa and Brigida, M and /Bari Polytechnic /INFN, Bari and Bruel, P and /Ecole Polytechnique and Buehler, R and /SLAC /KIPAC, Menlo Park and Buson, S and /INFN, Padua /Padua U. and Caliandro, G A and /CSIC, Catalunya and Cameron, R A and /SLAC /KIPAC, Menlo Park and Caraveo, P A and /Brera Observ. and Casandjian, J M and /AIM, Saclay and Cecchi, C and /INFN, Perugia /Perugia U. and Charles, E and /SLAC /KIPAC, Menlo Park /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /ASDC, Frascati /Perugia U. /SLAC /KIPAC, Menlo Park /Montpellier U. /Stockholm U. /Stockholm U., OKC /Royal Swedish Acad. Sci. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Hiroshima U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /Bari Polytechnic /INFN, Bari /Bologna Observ. /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /SLAC /KIPAC, Menlo Park /AIM, Saclay /Alabama U., Huntsville /INFN, Padua and /more authors.},
abstractNote = {We present limits for the compactification scale in the theory of Large Extra Dimensions (LED) proposed by Arkani-Hamed, Dimopoulos, and Dvali. We use 11 months of data from the Fermi Large Area Telescope (Fermi-LAT) to set gamma ray flux limits for 6 gamma-ray faint neutron stars (NS). To set limits on LED we use the model of Hannestad and Raffelt (HR) that calculates the Kaluza-Klein (KK) graviton production in supernova cores and the large fraction subsequently gravitationally bound around the resulting NS. The predicted decay of the bound KK gravitons to {gamma}{gamma} should contribute to the flux from NSs. Considering 2 to 7 extra dimensions of the same size in the context of the HR model, we use Monte Carlo techniques to calculate the expected differential flux of gamma-rays arising from these KK gravitons, including the effects of the age of the NS, graviton orbit, and absorption of gamma-rays in the magnetosphere of the NS. We compare our Monte Carlo-based differential flux to the experimental differential flux using maximum likelihood techniques to obtain our limits on LED. Our limits are more restrictive than past EGRET-based optimistic limits that do not include these important corrections. Additionally, our limits are more stringent than LHC based limits for 3 or fewer LED, and comparable for 4 LED. We conclude that if the effective Planck scale is around a TeV, then for 2 or 3 LED the compactification topology must be more complicated than a torus.},
doi = {10.2172/1049752},
url = {https://www.osti.gov/biblio/1049752}, journal = {JCAP 1202:012,2012},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 17 00:00:00 EDT 2012},
month = {Fri Aug 17 00:00:00 EDT 2012}
}