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The HADES data from p+Nb collisions at center of mass energy of $\sqrt{s_{NN}}$= 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons $\pi^0$, $\eta$, $\Lambda$, $K^{0}_{s}$, $\omega$ allows a…

Nuclear Experiment · Physics 2015-12-23 G. Agakishiev , O. Arnold , A. Balanda , D. Belver , A. Belyaev , J. C. Berger-Chen , A. Blanco , M. Böhmer , J. L. Boyard , P. Cabanelas , E. Castro , S. Chernenko , M. Destefanis , F. Dohrmann , A. Dybczak , E. Epple , L. Fabbietti , O. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Fröhlich , T. Galatyuk , J. A. Garzon , R. Gernhäuser , C. Gilardi , K. Göbel , M. Golubeva , D. Gonzalez-Diaz , F. Guber , M. Gumberidze , T. Heinz , T. Hennino , R. Holzmann , A. Ierusalimov , I. Iori , A. Ivashkin , M. Jurkovic , B. Kämpfer , T. Karavicheva , I. Koenig , W. Koenig , B. W. Kolb , G. Kornakov , R. Kotte , A. Krasa , F. Krizek , R. Krücken , H. Kuc , W. Kühn , A. Kugler , A. Kurepin , V. Ladygin , R. Lalik , J. S. Lange , S. Lang , K. Lapidus , A. Lebedev , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Markert , V. Metag , B. Michalska , J. Michel , E. Moriniere , J. Mousa , C. Müntz , R. Münzer , L. Naumann , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , J. Pietraszko , W. Przygoda , B. Ramstein , L. Rehnisch , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , T. Scheib , A. Schmah , H. Schuldes , E. Schwab , J. Siebenson , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Ströbele , J. Stroth , C. Sturm , A. Tarantola , K. Teilab , P. Tlusty , M. Traxler , R. Trebacz , H. Tsertos , T. Vasiliev , V. Wagner , M. Weber , C. Wendisch , M. Wisniowski , J. Wüstenfeld , S. Yurevich , Y. Zanevsky

Hadronic final states in e+e- annihilitions at centre-of-mass energies from 14GeV up to 189GeV are studied in order to test recent predictions for power corrections to the mean values as well as the distributions of event shape variables.

High Energy Physics - Experiment · Physics 2016-08-31 G. Dissertori , ALEPH collaboration

We discuss the production of hadrons in $e^+e^-$ collisions at $\sqrt s=91$ GeV. We address the question wether the particle yields measured in the final states are consistent with the statistical model predictions. In the model formulation…

High Energy Physics - Phenomenology · Physics 2009-08-19 K. Redlich , A. Andronic , F. Beutler , P. Braun-Munzinger , J. Stachel

The BaBar collaboration has an extensive program of studying hadronic cross sections in low-energy e+e- collisions, accessible via initial-state radiation. Our measurements allow significant improvements in the precision of the predicted…

High Energy Physics - Experiment · Physics 2013-10-15 Frank C. Porter

The estimates of overall strange quark production in high energy e+e-, pp and ppbar collisions by using the statistical-thermal model of hadronisation are presented and compared with previous works. The parametrization of strangeness…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Becattini

Predictions of analytical models for hadronisation, namely the dispersive model, the shape function and the single dressed gluon approximation, are compared with moments of hadronic event shape distributions measured in \epem annihilation…

High Energy Physics - Experiment · Physics 2010-12-17 C. Pahl , S. Bethke , O. Biebel , S. Kluth , J. Schieck

We study the inclusive and exclusive cross sections of $e^+e^-\to \text{hadrons}$ for center-of-mass energies between 3.70 GeV and 3.83 GeV to infer the mass, width, and couplings of the $\psi(3770)$ resonance. By using a coupled-channel…

High Energy Physics - Phenomenology · Physics 2024-04-11 Christoph Hanhart , Stephan Kürten , Méril Reboud , Danny van Dyk

Using the CLEO III detector, we measure absolute cross sections for e+e- --> hadrons at seven center-of-mass energies between 6.964 and 10.538 GeV. The values of R, the ratio of hadronic and muon pair production cross sections, are…

High Energy Physics - Experiment · Physics 2010-04-08 D. Besson , CLEO Collaboration

We have studied hadronic events from e+e- annihilation data at centre-of-mass energies from 91 to 209 GeV. We present distributions of event shape observables and their moments at each energy and compare with QCD Monte Carlo models. From…

High Energy Physics - Experiment · Physics 2019-08-17 The OPAL Collaboration , G. Abbiendi

The multiplicity distributions at high energy $e^+e^-$ annihilation are described well within the Two Stage Model in the region from 14 to 189 GeV. Energy dependence of parameters of this model gives the dynamic picture of the parton stage…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. S. Kokoulina

We discuss the impact of precision measurements of $\sigma(e^+e^-\to {hadrons})$ in the center-of-mass range between 3 and 12 GeV, including improvements in the electronic widths of the narrow charmonium and bottonium resonances, on the…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. H. Kühn , M. Steinhauser

We present an elaborate version of the hadron resonance gas model with the combined treatment of separate chemical freeze-outs for strange and non-strange hadrons and with an additional $\gamma_{s}$ factor which accounts for the remaining…

An analysis of hadron abundances in heavy ion collisions from SPS to RHIC energy within the statistical-thermal model is presented. Pb--Pb collisions at 40 A GeV are analysed for the first time here. Unlike stated in similar recent studies,…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Becattini

Inclusive hadron production cross sections in e+e-collisions shed light on the fundamental fragmentation and hadronization processes. We present measurements of the inclusive spectra of charged pions, kaons and protons in hadronic events at…

High Energy Physics - Experiment · Physics 2013-10-03 David Muller

We present a detailed study of chemical freeze-out in nucleus-nucleus collisions at beam energies of 11.6, 30, 40, 80 and 158A GeV. By analyzing hadronic multiplicities within the statistical hadronization approach, we have studied the…

Nuclear Theory · Physics 2009-11-10 Jaakko Manninen , Francesco Becattini , Antti Keranen , Marek Gazdzicki , Reinhard Stock

Electron-positron annihilations at an average center-of-mass energy of 133 GeV from the four LEP-experiments are presented. This includes in particular the total cross-section and multiplicities, thrust, rapidity and transverse momentum…

High Energy Physics - Phenomenology · Physics 2007-05-23 Claus Grupen

A program of measuring the light hadrons production in exclusive $e^+e^-$ to hadrons processes is in place at BaBar with the aim to improve the calculation of the hadronic contribution to the muon $g-2$. We present the most recent results…

High Energy Physics - Experiment · Physics 2019-06-25 Marcus Ebert

We observe an obvious anomalous line-shape of the $e^+e^- \to {\rm hadrons}$ total cross sections in the energy region between 3.700 and 3.872 GeV from the data samples taken with the BES-II detector at the BEPC Collider. Re-analysis of the…

High Energy Physics - Experiment · Physics 2012-08-27 BES Collaboration

Multiplicity data up to 200 GeV in e+e- annihilation are described well by the two-stage model based on pQCD and suggested the phenomenological scheme of hadronization. This model confirms the fragmentation mechanism of hadronization (in…

High Energy Physics - Experiment · Physics 2017-03-17 V. Dunin , E. Kokoulina , M. Nevmerzhitsky , V. Nikitin , Yu. Petukhov , V. Riadovikov , I. Roufanov , V. Volkov , A. Vorobiev

The threshold behavior of $e^+ e^-$ annihilation is considered in the channels $B_{s0} \bar B_s^* + c.c.$, $B_{s1} \bar B_s + c.c.$, and $B_{s1} \bar B_s^* +c.c.$, where $B_{s0}$ and $B_{s1}$ are the excited bottom-strange $J^P=0^+$ and…

High Energy Physics - Phenomenology · Physics 2017-03-29 M. B. Voloshin