Zobrazeno 1 - 10
of 4 750
pro vyhledávání: '"Strumia, A."'
We review observational, experimental and theoretical results related to Dark Matter.
Comment: 510 pages
Comment: 510 pages
Externí odkaz:
http://arxiv.org/abs/2406.01705
We formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark-mass matrix elements are polynomials in the CP-breaking order parameters, engineered such that their determinant is a real constant. This s
Externí odkaz:
http://arxiv.org/abs/2406.01689
We propose a theory that preserves spin-summed scattering and decay rates at tree level while affecting particle spins. This is achieved by breaking the Lorentz group in a non-local way that tries avoiding stringent constraints, for example leaving u
Externí odkaz:
http://arxiv.org/abs/2403.14757
Autor:
Ghoshal, Anish, Strumia, Alessandro
We consider an inflationary kinetic function with an integrable pole that is traversed during inflation. This scenario leads to enhanced spectra of primordial scalar inhomogeneities with detectable signals: formation of primordial black holes (that c
Externí odkaz:
http://arxiv.org/abs/2311.16236
Autor:
Ghoshal, Anish, Strumia, Alessandro
Supermassive black hole binaries source gravitational waves measured by Pulsar Timing Arrays. The frequency spectrum of this stochastic background is predicted more precisely than its amplitude. We argue that Dark Matter friction can suppress the spe
Externí odkaz:
http://arxiv.org/abs/2306.17158
Autor:
Barducci, Daniele, Strumia, Alessandro
A muon collider could produce the heavier Standard Model particles with a boost, for example in resonant processes such as $\mu^-\mu^+\to h$ or $\mu^-\mu^+\to Z$. We propose machine configurations that produce the boost (asymmetric beam energies, til
Externí odkaz:
http://arxiv.org/abs/2306.12480
String compactifications on an orbi-folded torus with complex structure give rise to chiral fermions, spontaneously broken CP, modular invariance. We show that this allows simple effective theories of flavour and CP where: i) the QCD angle vanishes;
Externí odkaz:
http://arxiv.org/abs/2305.08908
Autor:
Strumia, Alessandro
The Standard Model Higgs potential seems unstable at field values $h > h_{\rm top} \sim 10^{10}\,{\rm GeV}$. Vacuum decay can be triggered by $N\sim 4\pi/\lambda \sim 1000$ overlapped Higgs bosons with energy $\sqrt{\lambda} h_{\rm top}$. However, th
Externí odkaz:
http://arxiv.org/abs/2301.03620
Autor:
Strumia, Alessandro
We consider generic freeze-in processes for generation of Dark Matter, together with the consequent re-thermalization of the Standard Model fluid. We find that Dark Matter inherits the Standard Model adiabatic inhomogeneities on the cosmological scal
Externí odkaz:
http://arxiv.org/abs/2211.08359
Autor:
Sarah El Khatib, Carmela Bou Malham, Sandrine Andrieu, Mathilde Strumia, Philippe Cestac, Pascale Salameh
Publikováno v:
BMC Geriatrics, Vol 24, Iss 1, Pp 1-11 (2024)
Abstract Background Falling is a major concern for the health of older adults and significantly affects their quality of life. Identifying the various risk factors and the differences between older patients can be challenging. The objective of this s
Externí odkaz:
https://doaj.org/article/3f9a6bd706804e31a0a334261173f431