Results 41 to 50 of about 8,900 (289)

Determining Compositeness of Hadronic Resonances: the $\Lambda (1405)$ Radiative Decay and the $a_{0} (980)$-$f_{0} (980)$ Mixing

open access: yes, 2014
Recently the concept of compositeness has been developed so as to distinguish whether interested hadrons are hadronic molecules or not. Here, in terms of compositeness, we investigate $\bar{K} N$ molecular structure of the $\Lambda (1405)$ resonance with
Kumano, S., Sekihara, T.
core   +1 more source

Partially Supersymmetric Composite Higgs Models [PDF]

open access: yes, 2010
We study the idea of the Higgs as a pseudo-Goldstone boson within the framework of partial supersymmetry in Randall-Sundrum scenarios and their CFT duals.
A Brignole   +43 more
core   +2 more sources

« Composition, composition »…

open access: yesTransatlantica, 2013
Il s’agit de s’interroger sur ce qui se joue dans l’écriture littéraire et sur ce qui explique la difficulté qu’ont les non littéraires à saisir le travail de la langue et la composition esthétique de l’œuvre, lesquels assurent la puissance cognitive du texte littéraire et le distinguent fondamentalement des autres objets de fiction auquel il est ...
openaire   +3 more sources

Anatomy of the newly observed hidden-charm pentaquark states: Pc(4312), Pc(4440) and Pc(4457)

open access: yesPhysics Letters B, 2019
We study the newly reported hidden-charm pentaquark candidates Pc(4312), Pc(4440) and Pc(4457) from the LHCb Collaboration, in the framework of the effective-range expansion and resonance compositeness relations.
Zhi-Hui Guo, J.A. Oller
doaj   +1 more source

Collider constraints on tuning in composite Higgs models [PDF]

open access: yes, 2015
Two potential sources of tuning exist in composite Higgs models: one comes from keeping the Higgs VEV below the compositeness scale and one comes from keeping the Higgs light after constraints on the top partner masses are applied. We construct a measure
Barnard, James, White, Martin
core   +4 more sources

Compositeness of hadron resonances in finite volume

open access: yes, 2018
We develop a theoretical framework to quantify the structure of unstable hadron resonances. With the help of the corresponding system in a finite volume, we define the compositeness of resonance states which can be interpreted as a probability.
Hyodo, Tetsuo, Tsuchida, Yujiro
core   +1 more source

Search for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at s=13 TeV

open access: yesPhysics Letters B, 2023
Results are presented of a search for a heavy Majorana neutrino Image 1 decaying into two same-flavor leptons ℓ (electrons or muons) and a quark-pair jet. A model is considered in which the Image 1 is an excited neutrino in a compositeness scenario.
A. Tumasyan   +2363 more
doaj   +1 more source

Model-independent determination of the compositeness of near-threshold quasibound states

open access: yes, 2016
We study the compositeness of near-threshold states to clarify the internal structure of exotic hadron candidates. Within the framework of effective field theory, we extend the Weinberg's weak-binding relation to include the nearby CDD (Castillejo-Dalitz-
Hyodo, Tetsuo, Kamiya, Yuki
core   +1 more source

Probing compositeness with the CMS eejj & eej data

open access: yesPhysics Letters B, 2016
Quark-lepton compositeness is a well-known beyond the Standard Model (SM) scenario with heavy exotic particles like leptoquarks (LQs) and leptogluons (LGs) etc. These particles can couple to leptons and jets simultaneously.
Tanumoy Mandal   +2 more
doaj   +1 more source

Pole structure and compositeness

open access: yes, 2017
We present in this talk a series of new results on the nature of a bound state or resonance based on the calculation of the expectation values of the number operators of the free particles in the state of interest.
Oller, J. A.
core   +1 more source

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