Zobrazeno 1 - 10
of 4 779
pro vyhledávání: '"Strumia A"'
Cosmological collider signals of primordial non-Gaussianity arise at tree level when an extra scalar has Hubble mass during inflation. We critically review the formalism finding that a large class of inflationary theories, based on Planck-scale physi
Externí odkaz:
http://arxiv.org/abs/2408.07069
We review observational, experimental and theoretical results related to Dark Matter.
Comment: 515 pages. Typos fixed, comments and references added
Comment: 515 pages. Typos fixed, comments and references added
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
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-41 (2024)
Abstract 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 constan
Externí odkaz:
https://doaj.org/article/8221a83ad29b45718c28818d4befe3be
Autor:
Alessandro De Cassai, Astrid Behr, Dario Bugada, Danilo Canzio, Gianluca Capelleri, Fabio Costa, Giorgio Danelli, Grazia De Angelis, Romualdo Del Buono, Fabrizio Fattorini, Pierfrancesco Fusco, Fabio Gori, Alberto Manassero, Ilaria Pacini, Giuseppe Pascarella, Mauro Proietti Pannunzi, Gianluca Russo, Raffaele Russo, Domenico Pietro Santonastaso, Marco Scardino, Giuseppe Sepolvere, Paolo Scimia, Alessandro Strumia, Mario Tedesco, Andrea Tognù, Vito Torrano
Publikováno v:
Journal of Anesthesia, Analgesia and Critical Care, Vol 4, Iss 1, Pp 1-7 (2024)
Abstract Introduction The need for a standardized core curriculum in regional anesthesia has become essential, particularly with the integration of ultrasound revolutionizing and exponentially increasing clinical practice and possibilities. In fact,
Externí odkaz:
https://doaj.org/article/b699acdcfc4f4627bd926870ed8a483d
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