Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Strumia, A."'
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-23 (2021)
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-23 (2021)
First-order phase transitions can leave relic pockets of false vacua and their particles, that manifest as macroscopic Dark Matter. We compute one predictive model: a gauge theory with a dark quark relic heavier than the confinement scale. During the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b45e300bdd3254e2975be0d8f8030017
http://cds.cern.ch/record/2766348
http://cds.cern.ch/record/2766348
Publikováno v:
Physical Review
We show that the electron recoil excess around 2 keV claimed by the Xenon collaboration can be fitted by DM or DM-like particles having a fast component with velocity of order $\sim 0.1$. Those particles cannot be part of the cold DM halo of our Gala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5669b6dff3eca49601b5937f8f6e8710
Autor:
Alessandro Strumia, Daniele Teresi
Publikováno v:
Physical Review D
Physical Review
Physical Review
We consider an ultra-light scalar coupled to the Higgs in the presence of heavier new physics. In the electroweak broken phase the Higgs gives a tree-level contribution to the light-scalar potential, while new physics contributes at loop level. There
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f5d4e9c68b107a0d65f32cfc0b1572f
http://hdl.handle.net/11568/1063032
http://hdl.handle.net/11568/1063032
Publikováno v:
Physical Review
Physical Review D
Physical Review D
We explore the possibility that Dark Matter is the lightest hadron made of two stable color octet Dirac fermions ${\cal Q}$. The cosmological DM abundance is reproduced for $M_{\cal Q}\approx 12.5$ TeV, compatibly with direct searches (the Rayleigh c
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-40 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-40 (2017)
Dark Matter might be an accidentally stable baryon of a new confining gauge interaction. We extend previous studies exploring the possibility that the DM is made of dark quarks heavier than the dark confinement scale. The resulting phenomenology cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::089671a2507c81f524725b7639c406c4
http://arxiv.org/abs/1707.05380
http://arxiv.org/abs/1707.05380
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-22 (2018)
The Journal of high energy physics, 2018 (8
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-22 (2018)
The Journal of high energy physics, 2018 (8
In dimension-less theories of dynamical generation of the weak scale, the Universe can undergo a period of low-scale inflation during which all particles are massless and undergo super-cooling. This leads to a new mechanism of generation of the cosmo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e99d4cc1f43949faeb04926b40610151
http://arxiv.org/abs/1805.01473
http://arxiv.org/abs/1805.01473
Publikováno v:
Physical Review D
Physical Review
Physical Review
We critically reexamine two possible Dark Matter candidate within the Standard Model. First, we consider the $uuddss$ exa-quark. Its QCD binding energy could be large enough to make it (quasi) stable. We show that the cosmological Dark Matter abundan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf55edc501d306cfc7bba9aef1aec0e3
http://cds.cern.ch/record/2310964
http://cds.cern.ch/record/2310964
Publikováno v:
Physical Review Letters
The observation of an absorption feature in the 21 cm spectrum at redshift $z\approx 17$ implies bounds on Dark Matter annihilations for a broad range of masses, given that significant heating of the intergalactic medium would have erased such featur
Autor:
Antonio Riotto, Gian F. Giudice, Enrico Morgante, Nikolaos Tetradis, Alessandro Strumia, J. R. Espinosa, Leonardo Senatore
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol. 1509 (2015) pp. 174-230
Journal of High Energy Physics, Vol. 1509 (2015) pp. 174-230
The Standard Model Higgs potential becomes unstable at large field values. After clarifying the issue of gauge dependence of the effective potential, we study the cosmological evolution of the Higgs field in presence of this instability throughout in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94b6c9906cc3ba310e328fba506f4491
http://hdl.handle.net/11568/784552
http://hdl.handle.net/11568/784552