Results 11 to 20 of about 34,010 (203)

Experimental Status of Exotic Mesons and the GlueX Experiment [PDF]

, 2006
One of the unanswered and most fundamental questions in physics regards the nature of the confinement mechanism of quarks and gluons in QCD. Exotic hybrid mesons manifest gluonic degrees of freedom and their spectroscopy will provide the data necessary ...
Daniel S Carman, Dudek J, GlueX Collaboration, Michael C, Particle Data Group, Prokoshkin Y D   +5 more
core   +5 more sources

Novel Aspects of QCD in Leptoproduction [PDF]

, 2004
I review several topics in electroproduction which test fundamental aspects of QCD. These include the role of final-state interactions in producing diffractive leptoproduction processes, the shadowing of nuclear structure functions, and target-spin ...
Brodsky, S. J.
core   +2 more sources

Axion-like ALPs [PDF]

Journal of High Energy Physics, 2022
The Effective Field Theory (EFT) Lagrangian for a generic axion-like particle (ALP) has many free parameters, and leaves quite some freedom for the expected phenomenology.
F. Arias-Aragón, J. Quevillon, Christopher Smith   +2 more
semanticscholar   +1 more source

NNLO Matrix-Element Corrections in VINCIA [PDF]

Proceedings of 16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology — PoS(RADCOR2023), 2023
We report on a new formalism for parton showers whose fixed-order expansion can be corrected through next-to-next-to-leading order (NNLO) in QCD. It is the first such formalism we are aware of that has no dependence on any auxiliary scales or external ...
P. Skands, C. Preuss
semanticscholar   +1 more source

Phenomenology of Λb→Λcτν¯τ$$ {\Lambda}_b\to {\Lambda}_c\tau {\overline{\nu}}_{\tau } $$ using lattice QCD calculations [PDF]

, 2017
A bstractIn a recent paper we studied the effect of new-physics operators with different Lorentz structures on the semileptonic Λb→Λcτν¯τ$$ {\Lambda}_b\to {\Lambda}_c\tau {\overline{\nu}}_{\tau } $$ decay. This decay is of interest in light of the R(D(*))
A. Datta, Saeed Kamali, S. Meinel, A. Rashed   +3 more
semanticscholar   +2 more sources

Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2022
Maximizing the discovery potential of increasingly precise neutrino experiments will require an improved theoretical understanding of neutrino-nucleus cross sections over a wide range of energies.
L. A. Ruso, A. Ankowski, S. Bacca, A. Balantekin, J. Carlson, S. Gardiner, R. González-Jiménez, R. Gupta, T. Hobbs, M. Hoferichter, J. Isaacson, N. Jachowicz, W. Jay, T. Katori, F. Kling, A. Kronfeld, S. Li, H.-W. Lin, K. Liu, A. Lovato, K. Mahn, J. Menendez, A. Meyer, J. Morfín, S. Pastore, N. Rocco, M. Athar, T. Sato, A. Schwenk, P. Shanahan, L. Strigari, M. Wagman, X. Zhang, Y. Zhao, B. Acharya, L. Andreoli, C. Andreopoulos, J. Barrow, Tanmoy Bhattacharya, V. Brdar, C. Giusti, D. Kim, Y. Li, M. Lin, P. Machado, M. Martini, K. Niewczas, P. Pandey, A. Papadopoulou, R. Plestid, M. Roda, I. Simó, J. Simone, R. Sufian, J. Tena-Vidal, Y. Tsai, J. Udías   +56 more
semanticscholar   +1 more source

The high-energy limit of perturbative QCD: Theory and phenomenology [PDF]

EPJ Web of Conferences, 2022
After a brief introduction of formal and phenomenological progresses in the study of the high-energy limit of perturbative QCD, we present arguments supporting the statement that the inclusive emission of Higgs bosons or heavy-flavored hadrons acts as ...
F. Celiberto, M. Fucilla, A. Papa
semanticscholar   +1 more source

Excited Baryons Phenomenology from Large-$N_c$ QCD [PDF]

, 1997
We present a phenomenological analysis of the strong couplings of the negative-parity L=1 baryons from the perspective of the large-$N_c$ expansion. In the large-$N_c$ limit the mass spectrum and mixing pattern of these states are constrained in a very ...
D. Pirjol, T. Yan
semanticscholar   +1 more source

The Low‐Scale Seesaw Solution to the MW$M_W$ and (g−2)μ$(g-2)_\umu$ Anomalies

Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023
Abstract The recent CDF‐II measurement of the W‐boson mass shows a strong tension with the corresponding Standard Model prediction. Once active neutrino masses are explained in the context of the Low‐Scale Seesaw mechanisms, this tension can be resolved.
Arturo de Giorgi, Luca Merlo, Stefan Pokorski   +2 more
wiley   +1 more source

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