Results 21 to 30 of about 107,573 (184)

Dependence of net-hyperon production at mid-rapidity on beam energy and its implication on baryon number carrier [PDF]

open access: yesEPJ Web of Conferences
The conventional picture of baryon number is that each valence quark inside a baryon carries 1/3 unit of baryon number. However, an alternative picture exists where the center of a Y-shaped topology of gluon fields, called the baryon junction, carries 1 ...
Tsang Chun Yuen
doaj   +1 more source

Effect of thresholds on the width of three-body resonances

open access: yesPhysics Letters B, 2017
It has been recently reported an intriguing theoretical result of a narrow three-body resonance with a large available phase space [1]. The resonance was reported in the NΛΛ−ΞNN system near the Ξd threshold, having a very small width in spite of the open
H. Garcilazo, A. Valcarce
doaj   +1 more source

Search for the doubly charmed baryon Xi(+)(cc) [PDF]

open access: yes, 2013
A search for the doubly charmed baryon Ξ+cc in the decay mode Ξ+cc→Λ+cK−π+ is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb−1, of pp collisions recorded at a centre-of-mass energy of 7 TeV.
Dossett, D.   +999 more
core   +1 more source

Lattice QCD at finite baryon density using analytic continuation

open access: yesEPJ Web of Conferences, 2018
We simulate lattice QCD with two flavors of Wilson fermions at imaginary baryon chemical potential. Results for the baryon number density computed in the confining and deconfining phases at imaginary baryon chemical potential are used to determine the ...
Bornyakov V.G.   +8 more
doaj   +1 more source

Many-Quark Interactions: Large-N Scaling and Contribution to Baryon Masses

open access: yesUniverse, 2022
Starting from an effective Hamiltonian modeling, of a baryon made of N identical quarks in the large-N approach of QCD, we obtain analytical formulas, allowing to estimate the contributions of multiquark interactions to the baryon mass.
Fabien Buisseret   +2 more
doaj   +1 more source

Hadron resonance gas with repulsive interactions and fluctuations of conserved charges

open access: yesPhysics Letters B, 2018
We discuss the role of repulsive baryon–baryon interactions in a hadron gas using relativistic virial expansion and repulsive mean field approaches. The fluctuations of the baryon number as well as strangeness-baryon correlations are calculated in the ...
Pasi Huovinen, Peter Petreczky
doaj   +1 more source

Baryonic content of the pion

open access: yesPhysics Letters B, 2021
The baryon form factor of charged pions arises since isospin symmetry is broken. We obtain estimates for this basic property in two phenomenological ways: from simple constituent quark models with unequal up and down quark masses, and from fitting to e+e−
Pablo Sanchez-Puertas   +2 more
doaj   +1 more source

Measurement of prompt hadron production ratios in $pp$ collisions at $\sqrt{s} = $ 0.9 and 7 TeV [PDF]

open access: yes, 2012
The charged-particle production ratios pˉ/p , K −/K +, π −/π +, (p+pˉ)/(π++π−) , (K ++K −)/(π ++π −) and (p+pˉ)/(K++K−) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at s√=0.9 TeV and 1.8 nb−1 at s√=7 TeV .
Vorobyev, V.   +999 more
core   +1 more source

Diquark Study in Quark Model

open access: yesParticles
To investigate diquark correlation in baryons, the baryon spectra with different light–heavy quark combinations are calculated using Gaussian expansion method within both the naive quark model and the chiral quark model. By computing the diquark energies
Xinmei Zhu, Hongxia Huang, Jialun Ping
doaj   +1 more source

Tensor Amplitudes for Partial Wave Analysis of ψ→ΔΔ¯ within Helicity Frame

open access: yesUniverse
We have derived the tensor amplitudes for partial wave analysis of ψ→ΔΔ¯, Δ→pπ within the helicity frame, as well as the amplitudes for the other decay sequences with same final states.
Xiang Dong, Kexin Su, Hao Cai, Kai Zhu
doaj   +1 more source

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