Signatures of leptophilic t-channel dark matter from active galactic nuclei

被引：6

作者：

Cermeno, Marina ^{[1
]}

Degrande, Celine ^{[1
]}

Mantani, Luca ^{[2
]}

机构：

[1] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium

[2] Univ Cambridge, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England

来源：

PHYSICAL REVIEW D | 2022年 / 105卷 / 08期

基金：

欧洲研究理事会;

关键词：

SYNCHROTRON-RADIATION; POLARIZATION; CENTAURUS; CORE;

D O I：

10.1103/PhysRevD.105.083019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, we study indirect photon signatures of leptophilic dark matter (DM) coming from Centaurus A (Cen A), where a DM density spike is believed to have survived to date contrary to the case of our galaxy. We consider a model where DM is a Majorana fermion which interacts with right-handed electrons via a scalar mediator. Assuming that the photons measured from the core of Cen A are coming from SM processes, we derive constraints on the average annihilation cross section which are 7 orders of magnitude stronger than the ones from measurements of the Galactic Center. Focusing on the allowed parameter space range, we calculate the flux of photons coming from the radiative DM-electron scattering in the active galactic nuclei (AGN) jets and the circular polarization asymmetry of these photons. We find that this flux is two orders of magnitude lower than the background but its circular polarization asymmetry can reach values close to 100%, indicating the need to experimentally exploit the high fraction of circular polarization in order to detect these interactions. Since the origin of the photons in the GeV-TeV range from Cen A is not completely clear and an exotic origin is compatible with the measurements as well, we also consider the scenario in which synchrotron radiation can only partially explain the photon flux and we fit the excess with signals coming from DM annihilation, finding a best fit for a DM candidate with a mass m???? = 123 GeV and a coupling aR = 0.018.

引用

页数：14

共 52 条

[1] Resolving acceleration to very high energies along the jet of Centaurus A [J].

Abdalla, H. ;

Adam, R. ;

Aharonian, F. ;

Benkhali, F. Ait ;

Anguner, E. O. ;

Arakawa, M. ;

Arcaro, C. ;

Armand, C. ;

Ashkar, H. ;

Backes, M. ;

Barbosa Martins, V. ;

Barnard, M. ;

Becherini, Y. ;

Berge, D. ;

Bernloehr, K. ;

Blackwell, R. ;

Bottcher, M. ;

Boisson, C. ;

Bolmont, J. ;

Bonnefoy, S. ;

Bregeon, J. ;

Breuhaus, M. ;

Brun, F. ;

Brun, P. ;

Bryan, M. ;

Buechele, M. ;

Bulik, T. ;

Bylund, T. ;

Capasso, M. ;

Caroff, S. ;

Carosi, A. ;

Casanova, S. ;

Cerruti, M. ;

Chand, T. ;

Chandra, S. ;

Chen, A. ;

Colafrancesco, S. ;

Curylo, M. ;

Davids, I. D. ;

Deil, C. ;

Devin, J. ;

DeWilt, P. ;

Dirson, L. ;

Djannati-Atai, A. ;

Dmytriiev, A. ;

Donath, A. ;

Doroshenko, V. ;

Drury, L. O'C. ;

Dyks, J. ;

Egberts, K. .

NATURE, 2020, 582 (7812) :356-369

[2]

Abdalla H., 2018, ASTRON ASTROPHYS, DOI DOI 10.1051/0004-6361/201832640

[3]

Abdallaet al H., 2020, NATURE, V583, P23

[4] Search for γ-Ray Line Signals from Dark Matter Annihilations in the Inner Galactic Halo from 10 Years of Observations with HESS [J].

Abdallah, H. ;

Abramowski, A. ;

Aharonian, F. ;

Benkhali, F. Ait ;

Anguner, E. O. ;

Arakawa, M. ;

Arrieta, M. ;

Aubert, P. ;

Backes, M. ;

Balzer, A. ;

Barnard, M. ;

Becherini, Y. ;

Tjus, J. Becker ;

Berge, D. ;

Bernhard, S. ;

Bernloehr, K. ;

Blackwell, R. ;

Bottcher, M. ;

Boisson, C. ;

Bolmont, J. ;

Bonnefoy, S. ;

Bordas, P. ;

Bregeon, J. ;

Brun, F. ;

Brun, P. ;

Bryan, M. ;

Buechele, M. ;

Bulik, T. ;

Capasso, M. ;

Caroff, S. ;

Carosi, A. ;

Carr, J. ;

Casanova, S. ;

Cerruti, M. ;

Chakraborty, N. ;

Chaves, R. C. G. ;

Chen, A. ;

Chevalier, J. ;

Colafrancesco, S. ;

Condon, B. ;

Conrad, J. ;

Davids, I. D. ;

Decock, J. ;

Deil, C. ;

Devin, J. ;

Dewilt, P. ;

Dirson, L. ;

Djannati-Atai, A. ;

Domainko, W. ;

Donath, A. .

PHYSICAL REVIEW LETTERS, 2018, 120 (20)

[5] FERMI LARGE AREA TELESCOPE VIEW OF THE CORE OF THE RADIO GALAXY CENTAURUS A [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Atwood, W. B. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Brandt, T. J. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Cannon, A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Colafrancesco, S. ;

Cominsky, L. R. ;

Conrad, J. ;

Costamante, L. ;

Davis, D. S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

do Couto e Silva, E. ;

Drell, P. S. .

ASTROPHYSICAL JOURNAL, 2010, 719 (02) :1433-1444

[6] Updated search for spectral lines from Galactic dark matter interactions with pass 8 data from the Fermi Large Area Telescope [J].

Ackermann, M. ;

Ajello, M. ;

Albert, A. ;

Anderson, B. ;

Atwood, W. B. ;

Baldini, L. ;

Barbiellini, G. ;

Bastieri, D. ;

Bellazzini, R. ;

Bissaldi, E. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonino, R. ;

Bottacini, E. ;

Brandt, T. J. ;

Bregeon, J. ;

Bruel, P. ;

Buehler, R. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caputo, R. ;

Caragiulo, M. ;

Caraveo, P. A. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Chiang, J. ;

Chiaro, G. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Cuoco, A. ;

Cutini, S. ;

D'Ammando, F. ;

de Angelis, A. ;

de Palma, F. ;

Desiante, R. ;

Digel, S. W. ;

Di Venere, L. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Favuzzi, C. ;

Fegan, S. J. ;

Franckowiak, A. ;

Fukazawa, Y. ;

Funk, S. ;

Fusco, P. ;

Gargano, F. .

PHYSICAL REVIEW D, 2015, 91 (12)

[7] Planck 2018 results: VI. Cosmological parameters [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battye, R. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Challinor, A. ;

Chiang, H. C. ;

Chluba, J. ;

Colombo, L. P. L. ;

Combet, C. ;

Contreras, D. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[8] FEYNRULES 2.0-A complete toolbox for tree-level phenomenology [J].

Alloul, Adam ;

Christensen, Neil D. ;

Degrande, Celine ;

Duhr, Claude ;

Fuks, Benjamin .

COMPUTER PHYSICS COMMUNICATIONS, 2014, 185 (08) :2250-2300

[9] The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations [J].

Alwall, J. ;

Frederix, R. ;

Frixione, S. ;

Hirschi, V. ;

Maltoni, F. ;

Mattelaer, O. ;

Shao, H. -S. ;

Stelzer, T. ;

Torrielli, P. ;

Zaro, M. .

JOURNAL OF HIGH ENERGY PHYSICS, 2014, (07)

[10] MadDM v.3.0: A comprehensive tool for dark matter studies [J].

Ambrogi, Federico ;

Arina, Chiara ;

Backovic, Mihailo ;

Heisig, Jan ;

Maltoni, Fabio ;

Mantani, Luca ;

Mattelaer, Olivier ;

Mohlabeng, Gopolang .

PHYSICS OF THE DARK UNIVERSE, 2019, 24

← 1 2 3 4 5 6 →