Results 21 to 30 of about 504 (172)

Axion and ALP searches

, 2022
Axion and ALP ...
openaire   +1 more source

Intermediate Scale Accidental Axion and ALPs

, 2014
We discuss the problem of constructing models containing an axion and axion-like particles, motivated by astrophysical observations, with decay constants at the intermediate scale ranging from $10^9$GeV to $10^{13}$GeV. We present examples in which the axion and axion-like particles arise accidentally as pseudo Nambu-Goldstone bosons of automatic ...
Mohanmurthy, Prajwal, Dutta, Dipangkar, Formaggio, Joseph, Fowler, Nicholas, Gaerlan, Mikhail, Jiang, Yipeng, Madsen, John, Oblath, Noah, Powers, Adam, Ray, Amy, Riehle, Robertson   +10 more
openaire   +4 more sources

Axion and ALP search with the Any Light Particle Search II experiment at DESY

Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2023), 2023
The Any Light Particle Search II (ALPS II) is a Light-Shining-Through-a-Wall experiment at DESY in Hamburg, Germany, which hunts for axions and axion-like particles in the sub-meV mass range with an axion-photon-photon coupling $g_{\alpha \gamma \gamma} > 2 \times 10^{-11}\ \rm{GeV^{-1}}$, improving the sensitivity by a factor of $10^3$ compared to ...
Oceano, Isabella, ALPS II Collaboration
openaire   +3 more sources

Next Generation Search for Axion and ALP Dark Matter with the International Axion Observatory

2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC), 2018
More than 80 years after the postulation of dark matter, its nature remains one of the fundamental questions in cosmology. Axions are currently one of the leading candidates for the hypothetical, non-baryonic dark matter that is expected to account for about 25% of the energy density of the Universe. Especially in the light of the Large Hadron Collider
Ruz, J., Vogel, J.K., Armengaud, E., Attie, D., Basso, S., Brun, P., Bykovskiy, N., Carmona, J.M., Castel, J.F., Cebrián, S., Civitani, M., Cogollos, C., Costa, D., Dafni, T., Derbin, A.V., Descalle, M.A., Desch, K., Döbrich, B., Dratchnev, I., Dudarev, A., Ferrer-Ribas, E., Galán, J., Galanti, G., Gascón, D., Gastaldo, L., Garrido, L., Germani, C., Ghisellini, G., Giannotti, M., Giomataris, I., Gninenko, S., Golubev, N., Graciani, R., Irastorza, I.G., Jakovčić, K., Kaminski, J., Krčmar, M., Krieger, C., Lakić, B., Lasserre, T., Laurent, P., Lomskaya, I., Unzhakov, E., Limousin, O., Lindner, A., Luzón, G., Mescia, F., Miralda-Escudé, J., Mirallas, H., Muratova, V.N., Navick, X.F., Nones, C., Notari, A., Nozik, A., Núñez, A., de Solórzano, A.Ortiz, Pantuev, V., Papaevangelou, T., Pareschi, G., Picatoste, E., Pivovaroff, M.J., Perez, K., Redondo, J., Ringwald, A., Ruiz-Chóliz, E., Salvadó, J., Schiffer, T., Schmidt, S., Schneekloth, U., Schott, M., Silva, H., Tagliaferri, G., Tavecchio, F., ten Kate, H., Tkackev, I., Troitsky, S., Vedrine, P., Weltman, A.   +77 more
openaire   +5 more sources

Simulating past and future refugia for temperate trees in northern Italy

Ecography, EarlyView.
During the Quaternary, trees responded to the climatic changes of glacial–interglacial cycles with large‐scale range shifts. Over cold glacials, temperate tree species contracted their ranges and survived in areas known as refugia. Several studies point to the Euganean Hills (Colli Euganei), in Veneto, northern Italy, as one of the northernmost ...
Azzurra Pistone, Paul D. Henne, Petra Boltshauser‐ Kaltenrieder, Willy Tinner, Christoph Schwörer   +4 more
wiley   +1 more source

Composite ALPs in Composite Higgs Models

Journal of High Energy Physics
We study the effective Lagrangian for the Axion-Like Particle (ALP) arising in a class of composite Higgs models. We discuss the peculiarities of the coupling to the quark sector specific of these models, including flavor violating terms.
Gabriele Ferretti
doaj   +1 more source

Audible axions

Journal of High Energy Physics, 2019
Conventional approaches to probing axions and axion-like particles (ALPs) typically rely on a coupling to photons. However, if this coupling is extremely weak, ALPs become invisible and are effectively decoupled from the Standard Model. Here we show that
Camila S. Machado, Wolfram Ratzinger, Pedro Schwaller, Ben A. Stefanek   +3 more
doaj   +1 more source

Faster growing and more functionally diverse: global change alters functional trait composition of mountain plant communities in the European Alps

Ecography, EarlyView.
Understanding how global change reshapes mountain plant communities is essential for predicting biodiversity and ecosystem function in a warming world. Using resurvey data from over 1400 non‐forest vegetation plots across the European Alps, we show that community‐weighted means of key functional traits capturing important dimensions of plant ecological
Sergey Rosbakh, Sabine B. Rumpf, Stefan Dullinger   +2 more
wiley   +1 more source

The photophobic ALP

Journal of High Energy Physics, 2018
We explore models and phenomenology of a photophobic axion-like particle (ALP), an axion whose coupling to photons is maximally suppressed without fine-tuning of the underlying parameters.
Nathaniel Craig, Anson Hook, Skyler Kasko   +2 more
doaj   +1 more source

Electroweak precision test of axion-like particles

Journal of High Energy Physics, 2023
We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons.
Masashi Aiko, Motoi Endo
doaj   +1 more source