AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter - INSPIRE

DataBETA

AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter

Gaëlle Giesen
(
- IPhT, Saclay
)
,
Mathieu Boudaud
(
- Annecy, LAPTH
)
,
Yoann Génolini
(
- Annecy, LAPTH
)
,
Vivian Poulin
(
- Annecy, LAPTH and
- RWTH Aachen U.
)
,
Marco Cirelli
(
- IPhT, Saclay
)

Apr 16, 2015

12 pages

Published in:

JCAP 09 (2015) 023

Published: Sep 8, 2015

e-Print:

1504.04276 [astro-ph.HE]

DOI:

Report number:

SACLAY-T13-137,
LAPTH-019-15,
LAPP-EXP-2015-01

Experiments:

AMS

View in:

reference search325 citations

Citations per year

Abstract: (IOP)

Using the updated proton and helium fluxes just released by the AMS-02 experiment we reevaluate the secondary astrophysical antiproton to proton ratio and its uncertainties, and compare it with the ratio preliminarly reported by AMS-02. We find no unambiguous evidence for a significant excess with respect to expectations. Yet, some preference for a flatter energy dependence of the diffusion coefficient (with respect to the MED benchmark often used in the literature) starts to emerge. Also, we provide a first assessment of the room left for exotic components such as Galactic Dark Matter annihilation or decay, deriving new stringent constraints.

Note:

12 pages, 5 figures; Comments and clarifications added (including an appendix), matches version published on JCAP

dark matter theory
cosmic ray theory
cosmic ray experiments
dark matter experiments
dark matter: annihilation
galaxy: dark matter
AMS
anti-p
energy dependence
diffusion

References(58)

Figures(12)

[1]

Observational tests of antimatter cosmologies

G. Steigman
(
- Yale U.
)

- Ann.Rev.Astron.Astrophys. 14 (1976) 339-372
•
DOI:
- 10.1146/annurev.aa.14.090176.002011

[2]

Secondary anti-Protons: A Valuable Cosmic Ray Probe

G. Steigman
(
- Yale U.
)

- Astrophys.J.Lett. 217 (1977) L131-L133,
- Astrophys.J.217 (1977) L131-l133
•
DOI:
- 10.1086/182555

[3]

p. 31-91

S.A. Stephens
,
R.L. Golden

- Space Sci.Rev. 46 (1987) 2

[4]

Cosmic Ray anti-Protons as a Probe of a Photino Dominated Universe

Joseph Silk
(
- UC, Berkeley, Astron. Dept. and
- Santa Barbara, KITP
)
,
Mark Srednicki
(
- UC, Santa Barbara
)

- Phys.Rev.Lett. 53 (1984) 624,
•
DOI:
- 10.1103/PhysRevLett.53.624

[5]

‘Antimatter’, in ‘Particle Dark Matter. Observations, Models and Searches’, G. Bertone ed Cambridge University Press, November

P. Salati
,
F. Donato
,
N. Fornengo

[6]

First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV

AMS

Collaboration

•

M. Aguilar
(
- Madrid, CIEMAT and
- CERN
)

et al.

- Phys.Rev.Lett. 110 (2013) 141102
•
DOI:
- 10.1103/PhysRevLett.110.141102

[7]

High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station

AMS

Collaboration

•

L. Accardo
(
- INFN, Perugia
)

et al.

- Phys.Rev.Lett. 113 (2014) 121101
•
DOI:
- 10.1103/PhysRevLett.113.121101

[8]

An anomalous positron abundance in cosmic rays with energies 1.5-100 GeV

PAMELA

Collaboration

•

Oscar Adriani
(
- Florence U. and
- INFN, Florence
)

et al.

- Nature 458 (2009) 607-609
•
e-Print:
- 0810.4995
•
DOI:
- 10.1038/nature07942

[9]

A statistical procedure for the identification of positrons in the PAMELA experiment

O. Adriani
(
- Florence U. and
- INFN, Florence
)
,
G.C. Barbarino
(
- Naples U. and
- INFN, Naples
)
,
G.A. Bazilevskaya
(
- Lebedev Inst.
)
,
R. Bellotti
(
- Bari U. and
- INFN, Bari
)
,
M. Boezio
(
- INFN, Trieste
)

et al.

- Astropart.Phys. 34 (2010) 1-11
•
e-Print:
- 1001.3522
•
DOI:
- 10.1016/j.astropartphys.2010.04.007

[10]

Measurement of separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

M. Ackermann
(
)

et al.

- Phys.Rev.Lett. 108 (2012) 011103
•
e-Print:
- 1109.0521
•
DOI:
- 10.1103/PhysRevLett.108.011103

[11]

Precision Measurement of the ( $e^+ + e^−$ ) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station

AMS

Collaboration

•

M. Aguilar
(
- Madrid, CIEMAT
)

et al.

- Phys.Rev.Lett. 113 (2014) 221102
•
DOI:
- 10.1103/PhysRevLett.113.221102

[12]

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station

AMS

Collaboration

•

M. Aguilar
(
- Madrid, CIEMAT
)

et al.

- Phys.Rev.Lett. 113 (2014) 121102
•
DOI:
- 10.1103/PhysRevLett.113.121102

[13]

Indirect Searches for Dark Matter: a status review

Marco Cirelli
(
- Saclay, SPhT and
- CERN
)

- Pramana 79 (2012) 1021-1043
•
e-Print:
- 1202.1454
•
DOI:
- 10.1007/s12043-012-0419-x

[14]

Astrophysical models for the origin of the positron 'excess'

Pasquale D. Serpico
(
- Annecy, LAPTH
)

- Astropart.Phys. 39-40 (2012) 2-11
•
e-Print:
- 1108.4827
•
DOI:
- 10.1016/j.astropartphys.2011.08.007

[15]

Interpretation of AMS-02 electrons and positrons data

M. Di Mauro
(
- Turin U. and
- INFN, Turin and
- Annecy, LAPTH
)
,
F. Donato
(
- Turin U. and
- INFN, Turin
)
,
N. Fornengo
(
- Turin U. and
- INFN, Turin
)
,
R. Lineros
(
- Valencia U., IFIC
)
,
A. Vittino
(
- Turin U. and
- INFN, Turin and
- IPhT, Saclay
)

- JCAP 04 (2014) 006
•
e-Print:
- 1402.0321
•
DOI:
- 10.1088/1475-7516/2014/04/006

[16]

A new look at the cosmic ray positron fraction

M. Boudaud
(
- Annecy, LAPTH
)
,
S. Aupetit
(
- Annecy, LAPTH
)
,
S. Caroff
(
- Annecy, LAPP and
- Savoie U. (main)
)
,
A. Putze
(
- Annecy, LAPTH and
- Annecy, LAPP and
- Stockholm U., OKC
)
,
G. Belanger
(
- Annecy, LAPTH
)

et al.

- Astron.Astrophys. 575 (2015) A67
•
e-Print:
- 1410.3799
•
DOI:
- 10.1051/0004-6361/201425197

[17]

SDSSJ14584479+3720215: A Benchmark JHK Blazar Light Curve from the 2MASS Calibration Scans

- Astrophys.J. 803 (2015) 2
•
e-Print:
- 1503.00657
•
DOI:
- 10.1088/0004-637X/803/1/2

[17]

The Connection Between the Positron Fraction Anomaly and the Spectral Features in Galactic Cosmic-Ray Hadrons

Nicola Tomassetti
(
- LPSC, Grenoble
)
,
Fiorenza Donato
(
- Turin U. and
- INFN, Turin
)

- Astrophys.J.Lett. 803 (2015) 2, L15
•
e-Print:
- 1502.06150
•
DOI:
- 10.1088/2041-8205/803/2/L15

[18]

Constraints on WIMP Dark Matter from the High Energy PAMELA $\bar{p}/p$ data

- Phys.Rev.Lett. 102 (2009) 071301
•
e-Print:
- 0810.5292
•
DOI:
- 10.1103/PhysRevLett.102.071301

[19]

PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy

PAMELA

Collaboration

•

O. Adriani
(
- Florence U. and
- INFN, Florence
)

et al.

- Phys.Rev.Lett. 105 (2010) 121101
•
e-Print:
- 1007.0821
•
DOI:
- 10.1103/PhysRevLett.105.121101

[20]

Antiprotons from Dark Matter: Current constraints and future sensitivities

Marco Cirelli
(
- Saclay, SPhT
)
,
Gaelle Giesen
(
- Saclay, SPhT
)

- JCAP 04 (2013) 015
•
e-Print:
- 1301.7079
•
DOI:
- 10.1088/1475-7516/2013/04/015

[21]

A fussy revisitation of antiprotons as a tool for Dark Matter searches

- JCAP 05 (2015) 013
•
e-Print:
- 1412.5696
•
DOI:
- 10.1088/1475-7516/2015/05/013

[22]

Antiprotons from dark matter annihilation in the Galaxy: astrophysical uncertainties

Carmelo Evoli
(
- Beijing Observ. and
- Hamburg U., Inst. Theor. Phys. II
)
,
Ilias Cholis
(
- INFN, Trieste
)
,
Dario Grasso
(
- INFN, Pisa and
- Rome U.
)
,
Luca Maccione
(
- DESY and
- Munich U. and
- Munich, Max Planck Inst.
)
,
Piero Ullio
(
- INFN, Trieste
)

- Phys.Rev.D 85 (2012) 123511
•
e-Print:
- 1108.0664
•
DOI:
- 10.1103/PhysRevD.85.123511

[23]

PAMELA and FERMI-LAT limits on the neutralino-chargino mass degeneracy

Genevieve Belanger
(
- Annecy, LAPTH
)
,
Celine Boehm
(
- Durham U., IPPP and
- Annecy, LAPTH
)
,
Marco Cirelli
(
- CERN and
- Saclay, SPhT
)
,
Jonathan Da Silva
(
- Annecy, LAPTH
)
,
Alexander Pukhov
(
- SINP, Moscow
)

- JCAP 11 (2012) 028
•
e-Print:
- 1208.5009
•
DOI:
- 10.1088/1475-7516/2012/11/028

[24]

Constraints on particle dark matter from cosmic-ray antiprotons

N. Fornengo
(
- Turin U. and
- INFN, Turin
)
,
L. Maccione
(
- Munich U. and
- Munich, Max Planck Inst.
)
,
A. Vittino
(
- Turin U. and
- INFN, Turin and
- IPhT, Saclay and
- Diderot U., Paris
)

- JCAP 04 (2014) 003
•
e-Print:
- 1312.3579
•
DOI:
- 10.1088/1475-7516/2014/04/003

1-25 of 58
1
2
3
25 / page