Results 41 to 50 of about 386,273 (265)

Probing HNL‐ALP Couplings at Colliders

Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023
Abstract Axion‐like particles (ALPs) and heavy neutral leptons (HNLs) are both well‐motivated extensions of the Standard Model. As ALPs couple to on‐shell fermions proportionally to their masses, processes involving both types of particles may give rise, for TeV HNLs, to relevant phenomenology at colliders.
Arturo de Giorgi, Luca Merlo, Jean‐Loup Tastet   +2 more
wiley   +1 more source

Internal reduction method for computing Feynman integrals

Journal of High Energy Physics, 2020
A new approach to compute Feynman Integrals is presented. It relies on an integral representation of a given Feynman Integral in terms of simpler ones. Using this approach, we present, for the first time, results for a certain family of non-planar five ...
Costas G. Papadopoulos, Christopher Wever   +1 more
doaj   +1 more source

Axion phenomenology and lattice QCD [PDF]

Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), 2017
The properties of the QCD axion can be studied from the dependence of strong interactions on theθ-parameter. We present a study of the moments of the topological charge for temperatures up to around 600 MeV, obtained by lattice QCD simulations with 2+1 flavors at the physical quark masses.
Claudio Bonati, Massimo D'Elia, Marco Mariti, Guido Martinelli, Michele Mesiti, Francesco Negro, Francesco Sanfilippo, Giovanni Villadoro   +7 more
openaire   +3 more sources

Stability of the Next‐to‐Tribimaximal Mixings under Radiative Corrections with the Variation of the SUSY Breaking Scale in MSSM

Advances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023
We analyze the radiative stability of the next‐to‐tribimaximal mixings (NTBM) with the variation of the SUSY breaking scale (mS) in MSSM, for both normal ordering (NO) and inverted ordering (IO) at the fixed input value of the seesaw scale MR = 1015 GeV and two different values of tanβ.
Kh. Helensana Devi, K. Sashikanta Singh, N. Nimai Singh, Theocharis Kosmas   +3 more
wiley   +1 more source

Collinear expansion for color singlet cross sections

Journal of High Energy Physics, 2020
We demonstrate how to efficiently expand cross sections for color-singlet production at hadron colliders around the kinematic limit of all final state radiation being collinear to one of the incoming hadrons.
Markus A. Ebert, Bernhard Mistlberger, Gherardo Vita   +2 more
doaj   +1 more source

Sex is a defining feature of neuroimaging phenotypes in major brain disorders

Human Brain Mapping, Volume 43, Issue 1, Page 500-542, January 2022., 2022
Here, we review the human neuroimaging literature examining sex effects on adult brain structure using structural and diffusion MRI. We discuss normative sex differences based on population‐based studies as well as sex differences in 14 major brain diseases.
Lauren E. Salminen, Meral A. Tubi, Joanna Bright, Sophia I. Thomopoulos, Alyssa Wieand, Paul M. Thompson   +5 more
wiley   +1 more source

Magnetic field driven enhancement of the weak decay width of charged pions

Journal of High Energy Physics, 2020
We study the effect of a uniform magnetic field B → $$ \overrightarrow{B} $$ on the decays π − → l − ν ¯ l $$ {\pi}^{-}\to {l}^{-}{\overline{\nu}}_l $$ , where l − = e −, μ −, carrying out a general analysis that includes four π − decay constants. Taking
Maximo Coppola, Daniel Gomez Dumm, Santiago Noguera, Norberto N. Scoccola   +3 more
doaj   +1 more source

Generalising Holographic Superconductors

Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
In this paper we propose a generalised holographic framework to describe superconductors. We first unify the description of s‐, p‐, and d‐wave superconductors in a way that can be easily promoted to higher spin. Using a semianalytical procedure to compute the superconductor properties, we are able to further generalise the geometric description of the ...
Andrea Donini, Víctor Enguita-Vileta, Fabian Esser, Veronica Sanz, Torsten Asselmeyer-Maluga   +4 more
wiley   +1 more source

Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes

Journal of High Energy Physics, 2020
The impact of measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis at next-to-leading order.
The PROSA collaboration, O. Zenaiev, M. V. Garzelli, K. Lipka, S.-O. Moch, A. Cooper-Sarkar, F. Olness, A. Geiser, G. Sigl   +8 more
doaj   +1 more source

Polarised W+j production at the LHC: a study at NNLO QCD accuracy

Journal of High Energy Physics, 2022
We study polarisation of W-bosons produced in association with one jet at the LHC. In particular, we provide all necessary theoretical ingredients for the precise extraction of polarisation fractions.
Mathieu Pellen, Rene Poncelet, Andrei Popescu   +2 more
doaj   +1 more source