Results 121 to 130 of about 504 (172)

Leptophilic ALPs in laboratory experiments

Journal of High Energy Physics
We study the collider phenomenology of leptophilic axion-like particles (ALPs), i.e. pseudoscalar particles that couple only to charged leptons. Loops of charged leptons induce effective interactions of the ALPs with photons, which depend on the momenta ...
Alexander Eberhart, Marco Fedele, Felix Kahlhoefer, Eike Ravensburg, Robert Ziegler   +4 more
doaj   +1 more source

Momentum and Matter Matter for axion Dark Matter matters on Earth

Journal of High Energy Physics
We investigate the implications of matter effects to searches for axion Dark Matter on Earth. The finite momentum of axion Dark Matter is crucial to elucidating the effects of Earth on both the axion Dark Matter field value and its gradient. We find that
Abhishek Banerjee, Itay M. Bloch, Quentin Bonnefoy, Sebastian A. R. Ellis, Gilad Perez, Inbar Savoray, Konstantin Springmann, Yevgeny V. Stadnik   +7 more
doaj   +1 more source

A Non-Inflationary Axion and ALP Misalignment Mechanism

Based on considerations of quantum gravity, global symmetries which lead to axions as pseudo Nambu-Goldstone bosons after low scale symmetry breaking cannot be exact at the Planck scale. Here, we show that Planck-suppressed terms which yield this symmetry breaking may provide a non-inflationary misalignment mechanism which can generate coherent ...
openaire   +2 more sources

Exploring interference effects between two ALP effective operators at the LHC

Journal of High Energy Physics
We observe that most studies of axion-like particle (ALP) production channels at the Large Hadron Collider (LHC) focus on a single type of ALP operator for each process in the effective field theory framework.
Kingman Cheung, Chih-Ting Lu, C.J. Ouseph, Priyanka Sarmah   +3 more
doaj   +1 more source

Axion detection via superfluid 3He ferromagnetic phase and quantum measurement techniques

Journal of High Energy Physics
We propose to use the nuclear spin excitation in the ferromagnetic A1 phase of the superfluid 3He for the axion dark matter detection. This approach is striking in that it is sensitive to the axion-nucleon coupling, one of the most important features of ...
So Chigusa, Dan Kondo, Hitoshi Murayama, Risshin Okabe, Hiroyuki Sudo   +4 more
doaj   +1 more source

Statistical sensitivity estimates for oscillating electric dipole moment measurements in storage rings. [PDF]

Eur Phys J C Part Fields, 2020
Pretz J, Chang SP, Hejny V, Karanth S, Park S, Semertzidis Y, Stephenson E, Ströher H.   +7 more
europepmc   +1 more source

Froggatt-Nielsen ALP

Journal of High Energy Physics
The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This work examines a class of FN models based on ℤ N discrete symmetries.
Admir Greljo, Aleks Smolkovič, Alessandro Valenti   +2 more
doaj   +1 more source

An exceptional G(2) extension of the Standard Model from the correspondence with Cayley-Dickson algebras automorphism groups. [PDF]

Sci Rep, 2021
Masi N.
europepmc   +1 more source

Physical signatures of fermion-coupled axion dark matter

Journal of High Energy Physics
In the presence of axion dark matter, fermion spins experience an “axion wind” torque and an “axioelectric” force. We investigate new experimental probes of these effects and find that magnetized analogs of multilayer dielectric haloscopes can explore ...
Asher Berlin, Alexander J. Millar, Tanner Trickle, Kevin Zhou   +3 more
doaj   +1 more source

Probing the gauge-boson couplings of axion-like particle at the LHC and high-luminosity LHC

Journal of High Energy Physics
In this work, we calculate the sensitivities on the gauge-boson couplings g aZZ , g aZγ , and g aWW of an axion-like particle (ALP) that one can achieve at the LHC with s $$ \sqrt{s} $$ = 14 TeV and integrated luminosities of 300 fb−1 (current run) and ...
Kingman Cheung, Wanyon Hsiao, C. J. Ouseph, Chen Wang   +3 more
doaj   +1 more source