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Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV

The invariant differential cross section for inclusive electron production in $p + p$ collisions at $\sqrt{s} = 200$~GeV has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range…

High Energy Physics - Experiment · Physics 2023-04-07 PHENIX Collaboration , S. S. ~Adler , S. ~Afanasiev , C. ~Aidala , N. N. ~Ajitanand , Y. ~Akiba , J. ~Alexander , R. ~Amirikas , L. ~Aphecetche , S. H. ~Aronson , R. ~Averbeck , T. C. ~Awes , R. ~Azmoun , V. ~Babintsev , A. ~Baldisseri , K. N. ~Barish , P. D. ~Barnes , B. ~Bassalleck , S. ~Bathe , S. ~Batsouli , V. ~Baublis , A. ~Bazilevsky , S. ~Belikov , Y. ~Berdnikov , S. ~Bhagavatula , J. G. ~Boissevain , H. ~Borel , S. ~Borenstein , M. L. ~Brooks , D. S. ~Brown , N. ~Bruner , D. ~Bucher , H. ~Buesching , V. ~Bumazhnov , G. ~Bunce , J. M. ~Burward-Hoy , S. ~Butsyk , X. ~Camard , J. -S. ~Chai , P. ~Chand , W. C. ~Chang , S. ~Chernichenko , C. Y. ~Chi , J. ~Chiba , M. ~Chiu , I. J. ~Choi , J. ~Choi , R. K. ~Choudhury , T. ~Chujo , V. ~Cianciolo , Y. ~Cobigo , B. A. ~Cole , P. ~Constantin , D. ~d'Enterria , G. ~David , H. ~Delagrange , A. ~Denisov , A. ~Deshpande , E. J. ~Desmond , A. ~Devismes , O. ~Dietzsch , O. ~Drapier , A. ~Drees , R. ~du~Rietz , A. ~Durum , D. ~Dutta , Y. V. ~Efremenko , K. ~El~Chenawi , A. ~Enokizono , H. ~En'yo , S. ~Esumi , L. ~Ewell , D. E. ~Fields , F. ~Fleuret , S. L. ~Fokin , B. D. ~Fox , Z. ~Fraenkel , J. E. ~Frantz , A. ~Franz , A. D. ~Frawley , S. -Y. ~Fung , S. ~Garpman , T. K. ~Ghosh , A. ~Glenn , G. ~Gogiberidze , M. ~Gonin , J. ~Gosset , Y. ~Goto , R. ~Granier~de~Cassagnac , N. ~Grau , S. V. ~Greene , M. ~Grosse~Perdekamp , W. ~Guryn , H. -Å. ~Gustafsson , T. ~Hachiya , J. S. ~Haggerty , H. ~Hamagaki , A. G. ~Hansen , E. P. ~Hartouni , M. ~Harvey , R. ~Hayano , N. ~Hayashi , X. ~He , M. ~Heffner , T. K. ~Hemmick , J. M. ~Heuser , M. ~Hibino , J. C. ~Hill , W. ~Holzmann , K. ~Homma , B. ~Hong , A. ~Hoover , T. ~Ichihara , V. V. ~Ikonnikov , K. ~Imai , D. ~Isenhower , M. ~Ishihara , M. ~Issah , A. ~Isupov , B. V. ~Jacak , W. Y. ~Jang , Y. ~Jeong , J. ~Jia , O. ~Jinnouchi , B. M. ~Johnson , S. C. ~Johnson , K. S. ~Joo , D. ~Jouan , S. ~Kametani , N. ~Kamihara , J. H. ~Kang , S. S. ~Kapoor , K. ~Katou , S. ~Kelly , B. ~Khachaturov , A. ~Khanzadeev , J. ~Kikuchi , D. H. ~Kim , D. J. ~Kim , D. W. ~Kim , E. ~Kim , G. -B. ~Kim , H. J. ~Kim , E. ~Kistenev , A. ~Kiyomichi , K. ~Kiyoyama , C. ~Klein-Boesing , H. ~Kobayashi , L. ~Kochenda , V. ~Kochetkov , D. ~Koehler , T. ~Kohama , M. ~Kopytine , D. ~Kotchetkov , A. ~Kozlov , P. J. ~Kroon , C. H. ~Kuberg , K. ~Kurita , Y. ~Kuroki , M. J. ~Kweon , Y. ~Kwon , G. S. ~Kyle , R. ~Lacey , V. ~Ladygin , J. G. ~Lajoie , A. ~Lebedev , S. ~Leckey , D. M. ~Lee , S. ~Lee , M. J. ~Leitch , X. H. ~Li , H. ~Lim , A. ~Litvinenko , M. X. ~Liu , Y. ~Liu , C. F. ~Maguire , Y. I. ~Makdisi , A. ~Malakhov , V. I. ~Manko , Y. ~Mao , G. ~Martinez , M. D. ~Marx , H. ~Masui , F. ~Matathias , T. ~Matsumoto , P. L. ~McGaughey , E. ~Melnikov , F. ~Messer , Y. ~Miake , J. ~Milan , T. E. ~Miller , A. ~Milov , S. ~Mioduszewski , R. E. ~Mischke , G. C. ~Mishra , J. T. ~Mitchell , A. K. ~Mohanty , D. P. ~Morrison , J. M. ~Moss , F. ~Mühlbacher , D. ~Mukhopadhyay , M. ~Muniruzzaman , J. ~Murata , S. ~Nagamiya , J. L. ~Nagle , T. ~Nakamura , B. K. ~Nandi , M. ~Nara , J. ~Newby , P. ~Nilsson , A. S. ~Nyanin , J. ~Nystrand , E. ~O'Brien , C. A. ~Ogilvie , H. ~Ohnishi , I. D. ~Ojha , K. ~Okada , M. ~Ono , V. ~Onuchin , A. ~Oskarsson , I. ~Otterlund , K. ~Oyama , K. ~Ozawa , D. ~Pal , A. P. T. ~Palounek , V. ~Pantuev , V. ~Papavassiliou , J. ~Park , A. ~Parmar , S. F. ~Pate , T. ~Peitzmann , J. -C. ~Peng , V. ~Peresedov , C. ~Pinkenburg , R. P. ~Pisani , F. ~Plasil , M. L. ~Purschke , A. K. ~Purwar , J. ~Rak , I. ~Ravinovich , K. F. ~Read , M. ~Reuter , K. ~Reygers , V. ~Riabov , Y. ~Riabov , G. ~Roche , A. ~Romana , M. ~Rosati , P. ~Rosnet , S. S. ~Ryu , M. E. ~Sadler , N. ~Saito , T. ~Sakaguchi , M. ~Sakai , S. ~Sakai , V. ~Samsonov , L. ~Sanfratello , R. ~Santo , H. D. ~Sato , S. ~Sato , S. ~Sawada , Y. ~Schutz , V. ~Semenov , R. ~Seto , M. R. ~Shaw , T. K. ~Shea , T. -A. ~Shibata , K. ~Shigaki , T. ~Shiina , C. L. ~Silva , D. ~Silvermyr , K. S. ~Sim , C. P. ~Singh , V. ~Singh , M. ~Sivertz , A. ~Soldatov , R. A. ~Soltz , W. E. ~Sondheim , S. P. ~Sorensen , I. V. ~Sourikova , F. ~Staley , P. W. ~Stankus , E. ~Stenlund , M. ~Stepanov , A. ~Ster , S. P. ~Stoll , T. ~Sugitate , J. P. ~Sullivan , E. M. ~Takagui , A. ~Taketani , M. ~Tamai , K. H. ~Tanaka , Y. ~Tanaka , K. ~Tanida , M. J. ~Tannenbaum , P. ~Tarján , J. D. ~Tepe , T. L. ~Thomas , J. ~Tojo , H. ~Torii , R. S. ~Towell , I. ~Tserruya , H. ~Tsuruoka , S. K. ~Tuli , H. ~Tydesjö , N. ~Tyurin , H. W. ~van~Hecke , J. ~Velkovska , M. ~Velkovsky , V. ~Veszprémi , L. ~Villatte , A. A. ~Vinogradov , M. A. ~Volkov , E. ~Vznuzdaev , X. R. ~Wang , Y. ~Watanabe , S. N. ~White , F. K. ~Wohn , C. L. ~Woody , W. ~Xie , Y. ~Yang , A. ~Yanovich , S. ~Yokkaichi , G. R. ~Young , I. E. ~Yushmanov , W. A. ~Zajc , C. ~Zhang , S. ~Zhou , S. J. ~Zhou , L. ~Zolin

First Measurement of the Interference Fragmentation Function in $e^+e^-$ at Belle

A first measurement of the di-hadron interference fragmentation function of light quarks in pion pairs with the Belle detector is presented. The chiral odd nature of this fragmentation function allows the use as a quark polarimeter…

High Energy Physics - Experiment · Physics 2009-12-07 Anselm Vossen , Ralf Seidl , Matthias Grosse-Perdekamp , Martin Leitgab , Akio Ogawa , Kieran Boyle

On the light-front wave functions of quarkonia

The light-front wave functions of hadrons allow us to calculate a wide range of physical observables; however, the wave functions themselves cannot be measured. We discuss recent results for quarkonia obtained in basis light-front…

Nuclear Theory · Physics 2020-11-03 Pieter Maris , Shaoyang Jia , Meijian Li , Yang Li , Shuo Tang , James P. Vary

Strong Evidence of Plasma-like Behavior for Ion-Solid Collisions

Charge state distributions of various projectile ions passing through thin carbon foils have been studied in the energy range of 0.7-3.0 MeV/u using x-ray spectroscopy. This technique is found to be appropriate to segregate the charge state…

Plasma Physics · Physics 2015-06-29 Prashant Sharma , Tapan Nandi

Continuum estimate of the heavy quark momentum diffusion coefficient $\kappa$

Among quantities playing a central role in the theoretical interpretation of heavy ion collision experiments at RHIC and LHC are so-called transport coefficients. Out of those heavy quark diffusion coefficients play an important role e.g.…

High Energy Physics - Lattice · Physics 2014-09-15 Olaf Kaczmarek

Quantum diffusion in biased washboard potentials: strong friction limit

Diffusive transport properties of a quantum Brownian particle moving in a tilted spatially periodic potential and strongly interacting with a thermostat are explored. Apart from the average stationary velocity, we foremost investigate the…

Statistical Mechanics · Physics 2009-11-11 L. Machura , M. Kostur , P. Talkner , J. Luczka , P. Hänggi

Quark-diquark models and baryonic fluctuations in QCD

We study the baryonic fluctuations of electric charge, baryon number and strangeness, by considering a realization of the Hadron Resonance Gas model in the light flavor sector of QCD. We elaborate on the idea that the susceptibilities can…

High Energy Physics - Phenomenology · Physics 2025-01-10 E. Megias , E. Ruiz Arriola , L. L. Salcedo

Short-range charge fluctuations in the two-dimensional Hubbard model

We investigate charge fluctuations in the two-dimensional Hubbard model as a function of doping, interaction strength, next-nearest-neighbor hopping, and temperature within the eight-site dynamical cluster approximation. In the regime of…

Strongly Correlated Electrons · Physics 2020-07-13 Xinyang Dong , Emanuel Gull

Conserved Charge Fluctuations in a Chiral Hadronic Model including Hadrons and Quarks

In this work the susceptibility coefficients of the strange and non-strange quark number of second and fourth order are presented. The results at zero baryonchemical potential are obtained using a well tested chiral effective model…

High Energy Physics - Phenomenology · Physics 2014-05-27 Philip Rau , Jan Steinheimer , Stefan Schramm , Horst Stöcker

Testing the impact of electromagnetic fields on the directed flow of constituent quarks in heavy-ion collisions

It has been proposed that strong electromagnetic fields produced in the early stages of heavy-ion collisions can lead to splitting of the rapidity-odd directed flow of positive and negative hadrons. For light hadrons, the interpretation of…

Nuclear Experiment · Physics 2022-01-21 Ashik Ikbal Sheikh , Declan Keane , Prithwish Tribedy

First measurements of in-jet fragmentation and correlations of charmed mesons and baryons in pp collisions with ALICE

Fragmentation functions are one of the key components of the factorisation theorem used to calculate heavy-flavour hadron production cross sections. The non-perturbative nature of fragmentation functions necessitates that they are…

High Energy Physics - Experiment · Physics 2023-10-24 Antonio Palasciano

Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions at the LHC

We report on two-particle charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions as a function of the pseudorapidity and azimuthal angle difference, $\mathrm{\Delta}\eta$ and $\mathrm{\Delta}\varphi$ respectively. These…

Nuclear Experiment · Physics 2016-03-25 ALICE Collaboration

Causal Baryon Diffusion and Colored Noise for Heavy Ion Collisions

We construct a model for baryon diffusion which has the desired properties of analyticity and causality. The model also has the desired property that the noise correlation function is not a Dirac delta function in space and time. The model…

Nuclear Theory · Physics 2017-01-31 J. I. Kapusta , C. Young

Coulomb Gauge QCD and the Excited Hadron Spectrum

We discuss progress in understanding the light and heavy quark excited hadron spectrum from Coulomb gauge QCD. For light quark systems we highlight the insensitivity to spontaneous chiral symmetry breaking, which predicts Wigner…

High Energy Physics - Phenomenology · Physics 2010-12-30 Felipe J. Llanes-Estrada , Stephen R. Cotanch , Tim van Cauteren , Juan M. Torres Rincon , Pedro Bicudo , Marco Cardoso

Heavy flavour energy loss from AdS/CFT: A novel diffusion coefficient

Two AdS/CFT based energy loss models are used to compute the suppression and azimuthal correlations of heavy quarks in heavy ion collisions. The model with a velocity independent diffusion coefficient is in good agreement with B and D meson…

High Energy Physics - Phenomenology · Physics 2018-02-08 Robert Hambrock , William Alexander Horowitz

The role of heavy quarks in light hadron fragmentation

We investigate the role of heavy quarks in the production of light flavored hadrons and in the determination of the corresponding non perturbative hadronization probabilities. We define a general mass variable flavor number scheme for…

High Energy Physics - Phenomenology · Physics 2016-08-31 M. Epele , C. A. Garcia Canal , R. Sassot

Fluctuation probes of quark deconfinement

The magnitude of the local fluctuations of the net baryon number and electric charge differs widely between the confined and deconfined phases, and the difference is partially frozen at an early stage in relativistic heavy ion collisions.…

Nuclear Theory · Physics 2010-05-28 M. Asakawa , U. Heinz , B. Muller

Time evolution of relativistic d + Au and Au + Au collisions

The evolution of charged-particle production in collisions of heavy ions at relativistic energies is investigated as function of centrality in a nonequilibrium-statistical framework. Precise agreement with recent d + Au and Au + Au data at…

High Energy Physics - Phenomenology · Physics 2007-05-23 Georg Wolschin , Minoru Biyajima , Takuya Mizoguchi , Naomichi Suzuki

System Size and Centrality Dependence of the Balance Function in A + A Collisions at s(NN)^(1/2) = 17.2 GeV

Electric charge correlations were studied for p+p, C+C, Si+Si and centrality selected Pb+Pb collisions at $\sqrt{s_{NN}} = 17.2$ GeV with the NA49 large acceptance detector at the CERN-SPS. In particular, long range pseudo-rapidity…

High Energy Physics - Experiment · Physics 2012-08-27 NA49 Collaboration

Inclusive diffraction

Results are given on the measurements of the hard diffractive interactions at HERA $ep$ collider. The structure of the diffractive exchange in terms of partons and the factorisation properties are discussed, in particular by comparing the…

High Energy Physics - Experiment · Physics 2017-08-23 L. Favart