Results 51 to 60 of about 98,048 (215)

Hadron Freeze-Out and Qgp Hadronization [PDF]

open access: yes, 1999
Abundances and $m_\bot$-spectra of strange and other hadronic particles emanating from central 158-200 A GeV reactions between nuclei are found to originate from a thermally equilibrated, deconfined source in chemical non-equilibrium. Physical freeze-out parameters and physical conditions (pressure, specific energy, entropy, and strangeness) are ...
Rafelski, Johann, Letessier, Jean
openaire   +2 more sources

Hadronic Atoms [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 2009
We review the theory of hadronic atoms in the framework of quantum chromodynamics, with photons and electrons included (QCD+QED). We illustrate the method by means of π+π− atoms and briefly consider the application of the same approach to several other hadronic atoms.
Gasser, Jürg   +2 more
openaire   +4 more sources

Parity violation in neutron capture on the proton: Determining the weak pion–nucleon coupling

open access: yesPhysics Letters B, 2015
We investigate the parity-violating analyzing power in neutron capture on the proton at thermal energies in the framework of chiral effective field theory.
J. de Vries   +5 more
doaj   +1 more source

Unintegrated Gluon Distributions as Probability Densities for QCD Dynamical Entropy

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present a systematic procedure for constructing normalized transverse momentum probability distributions from phenomenological unintegrated gluon distributions (UGDs). These distributions provide the probabilistic foundation of the QCD dynamical entropy formalism and can be employed in the evaluation of other statistical observables.
G. S. Ramos, Magno V. T. Machado
wiley   +1 more source

Excited Hadron Channels in Hadronization

open access: yesProceedings of 11th International Conference on Hard and Elecctromagnetic Probes of High-Energy Nuclear Collisions — PoS(HardProbes2023)
The proper treatment of hadronic resonances plays an important role for many aspects of heavy ion collisions. We expect this to be the case also for hadronization, due to the large degeneracies of excited states, and the abundant production of hadrons from their decays.
Fries, Rainer J.   +3 more
openaire   +5 more sources

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s=8  TeV with the ATLAS detector [PDF]

open access: yes, 2014
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3  fb−1 of pp collisions at √s=8  TeV with the ATLAS detector at the Large Hadron Collider.
G. Khoriauli   +999 more
core   +7 more sources

Hard diffraction in hadron-hadron interactions and in photoproduction [PDF]

open access: yesPhysical Review D, 1995
Hard single diffractive processes are studied within the framework of the triple--Pomeron approximation. Using a Pomeron structure function motivated by Regge--theory we obtain parton distribution functions which do not obey momentum sum rule. Based on Regge-- factorization cross sections for hard diffraction are calculated.
Engel, R., Ranft, J., Roesler, S.
openaire   +3 more sources

Search for WH production with a light Higgs boson decaying to prompt electron-jets in proton–proton collisions at $\sqrt {s}=7$ TeV with the ATLAS detector [PDF]

open access: yes, 2013
A search is performed for WH production with a light Higgs boson decaying to hidden-sector particles resulting in clusters of collimated electrons, known as electron-jets.

core   +3 more sources

Study of the pd→→n{pp}s charge-exchange reaction using a polarised deuterium target

open access: yesPhysics Letters B, 2015
The vector and tensor analysing powers, Ay and Ayy, of the pd→→n{pp}s charge-exchange reaction have been measured at a beam energy of 600 MeV at the COSY-ANKE facility by using an unpolarised proton beam incident on an internal storage cell target filled
B. Gou   +41 more
doaj   +1 more source

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