Results 21 to 30 of about 47,894 (240)

Resolution of the LHCb η c anomaly

Journal of High Energy Physics, 2023
Due to the heavy-quark symmetry of Non-Relativistic Quantum Chromodynamics (NRQCD), the cross-section for the production of η c can be predicted. This NRQCD prediction when confronted with data from the LHCb is seen to fail miserably.
Sudhansu S. Biswal, Sushree S. Mishra, K. Sridhar   +2 more
doaj   +1 more source

Inclusive J/ψ photoproduction at the ILC within the framework of non-relativistic QCD

Journal of High Energy Physics, 2022
Based on the non-relativistic quantum chromodynamics factorization framework, we study the inclusive J/ψ photoproduction at the future high energy e + e − collider, International Linear Collider(ILC), where the initial photons come from the back ...
Xi-Jie Zhan, Xing-Gang Wu, Xu-Chang Zheng   +2 more
doaj   +1 more source

Renormalon subtraction in OPE by dual space approach: nonlinear sigma model and QCD

Journal of High Energy Physics, 2023
It is becoming more important to subtract renormalons efficiently from perturbative calculations, in order to achieve high precision QCD calculations. We propose a new framework “Dual Space Approach” for renormalon separation, which enables subtraction ...
Yuuki Hayashi, Go Mishima, Yukinari Sumino, HiromasaTakaura   +3 more
doaj   +1 more source

Amplitude’s positivity vs. subluminality: causality and unitarity constraints on dimension 6 & 8 gluonic operators in the SMEFT

Journal of High Energy Physics, 2023
We derive the causality and unitarity constraints on dimension 6 and dimension 8 Gluon field strength operators in the Standard Model Effective Field Theory (SMEFT). In the first part of the paper, we use the ‘amplitude analysis’ i.e. dispersion relation
Diptimoy Ghosh, Rajat Sharma, Farman Ullah   +2 more
doaj   +1 more source

Effective field theory for the crystalline colour superconductive phase of QCD [PDF]

Physics Letters B, 2001
We present an effective field theory for high density, low temperature QCD in the crystalline colour superconductive phase (LOFF phase). This interesting phase of QCD is characterized by a gap parameter with a crystalline pattern, breaking traslational and rotational invariance, and could have astrophysical applications.
CASALBUONI, ROBERTO, Raoul Gatto, M. Mannarelli, G. Nardulli   +3 more
openaire   +4 more sources

Test of the Skyrme effective field theory using quenched lattice QCD [PDF]

Nuclear Physics A, 1994
20 pages in TeX, 6 figures added using "figures", MIT-CTP ...
Chu, M. --C., Lissia, Marcello, Negele, J. W.   +2 more
openaire   +2 more sources

Bell violation in 2 → 2 scattering in photon, gluon and graviton EFTs

Journal of High Energy Physics, 2023
In this paper, we explore Bell inequality violation for 2 → 2 scattering in Effective Field Theories (EFTs) of photons, gluons, and gravitons. Using the CGLMP Bell parameter (I 2), we show that, starting from an appropriate initial non-product state, the
Diptimoy Ghosh, Rajat Sharma
doaj   +1 more source

Amplitude/operator basis in chiral perturbation theory

Journal of High Energy Physics, 2023
We establish a systematic construction of the on-shell amplitude/operator basis for Chiral Perturbation Theory (ChPT) in D = 4 spacetime dimensions and with an arbitrary number of flavors N f .
Ian Low, Jing Shu, Ming-Lei Xiao, Yu-Hui Zheng   +3 more
doaj   +1 more source

Transverse-momentum-dependent wave functions and soft functions at one-loop in large momentum effective theory

Journal of High Energy Physics, 2022
In large-momentum effective theory (LaMET), the transverse-momentum-dependent (TMD) light-front wave functions and soft functions can be extracted from the simulation of a four-quark form factor and equal-time correlation functions.
Zhi-Fu Deng, Wei Wang, Jun Zeng
doaj   +1 more source

Solving effective field theory of interacting QCD pomerons in the semiclassical approximation [PDF]

Physical Review D, 2007
References added, misprints ...
Bondarenko, S., Motyka, L.
openaire   +4 more sources