Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Sarmah, Priyanka"'
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. In this work, we propose an alternative
Externí odkaz:
http://arxiv.org/abs/2404.14833
A spinning supermassive black hole (SMBH) at the core of an active galactic nucleus (AGN) provides room for the elusive ultra-light scalar particles (ULSP) to be produced through a phenomenon called \textit{superradiance}. As a result of this phenome
Externí odkaz:
http://arxiv.org/abs/2404.09955
$Z$ production at an $e^+e^-$ collider, associated with production of other particles, can be an accurate source of information of details of electroweak interactions, including possible interactions beyond the standard model. We discuss from a gener
Externí odkaz:
http://arxiv.org/abs/2311.13473
Publikováno v:
Phys. Lett. B 840 (2023) 137847
The production of a Higgs boson in association with a $Z$ at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. In view of the large production cross section at energies a little abov
Externí odkaz:
http://arxiv.org/abs/2304.11573
The production of a Higgs boson in association with a $Z$ at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. In view of the large production cross section at energies a little abov
Externí odkaz:
http://arxiv.org/abs/2202.10215
Publikováno v:
Nuclear Physics B 975 (2022) 115649
It is shown that a certain angular asymmetry of charged leptons produced in the decay of $Z$ in the process $e^+e^- \to ZH$, related to a tensor polarization component of the $Z$, can be used to constrain the anomalous triple-Higgs coupling, independ
Externí odkaz:
http://arxiv.org/abs/2109.11134
Publikováno v:
JCAP08(2021)041
In the standard cosmology, it is believed that there are two relatively weak and distinct band-limited absorption features, with the first absorption minima near 20 MHz ($z\sim70$) and the other minima at higher frequencies between 50-110 MHz ($z\sim
Externí odkaz:
http://arxiv.org/abs/2103.06303
Publikováno v:
Nuclear Physics B 964(2021)115317
We estimate model-independent bounds that could be obtained on the anomalous $ZZH$ vertex using polarization parameters of the $Z$ boson produced in the Higgstrahlung process at the LHC. We calculate the eight independent polarization parameters from
Externí odkaz:
http://arxiv.org/abs/2009.00980
Publikováno v:
Nucl. Phys.B (950),114840 (2020)
We study possible new physics interactions in the $ZZH$ vertex contributing to the Higgsstrahlung process $e^+ e^- \to ZH$ at proposed future $e^+e^-$ colliders using the polarization of the $Z$ as a probe. We calculate the spin density matrix of the
Externí odkaz:
http://arxiv.org/abs/1904.06663
Publikováno v:
Proceedings of the Indian National Science Academy; 20240101, Issue: Preprints p1-14, 14p
