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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

Total cross section for p-d breakup below 30 MeV

The total cross section for p-d breakup is studied in terms of the elastic S-matrix through the unitary condition. Calculations using the complex Kohn variational method along with the Pair Correlated Hyperspherical Harmonic basis are…

Nuclear Theory · Physics 2009-11-06 A. Kievsky , C. R. Brune , M. Viviani

Ionization of hydrogen atoms by electron impact at 1eV, 0.5eV and 0.3eV above threshold

We present here triple differential cross sections for ionization of hydrogen atoms by electron impact at 1eV, 0.5eV and 0.3eV energy above threshold, calculated in the hyperspherical partial wave theory. The results are in very good…

Atomic Physics · Physics 2009-11-10 J. N. Das , S. Paul , K. Chakrabarti

An experimentally validated neural-network potential energy surface for H atoms on free-standing graphene in full dimensionality

We present a first principles-quality potential energy surface (PES) describing the inter-atomic forces for hydrogen atoms interacting with free-standing graphene. The PES is a high-dimensional neural network potential that has been…

Computational Physics · Physics 2021-03-05 Sebastian Wille , Hongyan Jiang , Oliver Bünermann , Alec M. Wodtke , Jörg Behler , Alexander Kandratsenka

Energy Loss and Flavor Dynamics from Single Particle Measurements in PHENIX

The transverse momentum spectra, yields, and ratios of charged pions, protons, and antiprotons have been studied up to 5 GeV/c in $p_T$ in 5 different centrality classes in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. These results are…

Nuclear Experiment · Physics 2019-08-13 R. Belmont

Cross section alignment of polycyclic aromatic hydrocarbons by anisotropic radiation

We study the effect of anisotropic radiation illumination on the alignment of polycyclic aromatic hydrocarbons (PAHs) and report that cross-sectional mechanism of alignment earlier considered in terms of gas-grain interactions can also be…

Astrophysics of Galaxies · Physics 2018-07-11 Thiem Hoang , A. Lazarian

Single electrons from heavy-flavor mesons in relativistic heavy-ion collisions

We study the single electron spectra from $D-$ and $B-$meson semileptonic decays in Au+Au collisions at $\sqrt{s_{\rm NN}}=$200, 62.4, and 19.2 GeV by employing the parton-hadron-string dynamics (PHSD) transport approach that has been shown…

Nuclear Theory · Physics 2017-07-12 Taesoo Song , Hamza Berrehrah , Juan M. Torres-Rincon , Laura Tolos , Daniel Cabrera , Wolfgang Cassing , Elena Bratkovskaya

A Method to Extract Spatially Resolved Polycyclic Aromatic Hydrocarbon Emission from Spitzer Spectra: Application to M51

The mid-infrared spectrum contains rich diagnostics to probe the physical properties of galaxies, among which the pervasive emission features from polycyclic aromatic hydrocarbons (PAHs) offer a promising means of estimating the star…

Astrophysics of Galaxies · Physics 2020-12-23 Lulu Zhang , Luis C. Ho , Yanxia Xie

Polycyclic Aromatic Hydrocarbon Emission in the Central Regions of Three Seyferts the Implication for Underlying Feedback Mechanisms

We analyze JWST MIRI/MRS IFU observations of three Seyferts and showcase the intriguing polycyclic aromatic hydrocarbon (PAH) emission characteristics in regions of $\sim 500\,\rm pc$ scales over or around their active galactic nuclei…

Astrophysics of Galaxies · Physics 2024-10-02 Lulu Zhang , Ismael García-Bernete , Chris Packham , Fergus R. Donnan , Dimitra Rigopoulou , Erin K. S. Hicks , Ric I. Davies , Taro T. Shimizu , Almudena Alonso-Herrero , Cristina Ramos Almeida , Miguel Pereira-Santaella , Claudio Ricci , Andrew J. Bunker , Mason T. Leist , David J. Rosario , Santiago García-Burillo , Laura Hermosa Muñoz , Francoise Combes , Masatoshi Imanishi , Alvaro Labiano , Donaji Esparza-Arredondo , Enrica Bellocchi , Anelise Audibert , Lindsay Fuller , Omaira González-Martín , Sebastian Hönig , Takuma Izumi , Nancy A. Levenson , Enrique López-Rodríguez , Daniel Rouan , Marko Stalevski , Martin J. Ward

The need for spatially resolved observations of PAHs in protoplanetary discs

The signatures of polycyclic aromatic hydrocarbons (PAHs) have been observed in protoplanetary discs, and their emission features obtained from spectral energy distributions (SED) have been used in the literature to characterise their size…

Earth and Planetary Astrophysics · Physics 2023-11-22 K. Lange , C. Dominik , A. G. G. M. Tielens

Energy loss of heavy quarks and $B$ and $D$ meson spectra in PbPb collisions at LHC energies

We study the production and evolution of charm and bottom quarks in hot partonic medium produced in heavy ion collisions. The heavy quarks loose energy in the medium which is reflected in the transverse momentum spectra of heavy mesons. The…

High Energy Physics - Phenomenology · Physics 2017-04-05 Kapil Saraswat , Prashant Shukla , Vineet Kumar , Venktesh Singh

Stacked clusters of polycyclic aromatic hydrocarbon molecules

Clusters of polycyclic aromatic hydrocarbon (PAH) molecules are modelled using explicit all-atom potentials using a rigid body approximation. The PAH's considered range from pyrene (C10H8) to circumcoronene (C54H18), and clusters containing…

Chemical Physics · Physics 2016-09-28 M. Rapacioli , F. Calvo , F. Spiegelman , C. Joblin , D. J. Wales

Precision Pion-Proton Elastic Differential Cross Sections at Energies Spanning the Delta Resonance

A precision measurement of absolute pi+p and pi-p elastic differential cross sections at incident pion laboratory kinetic energies from T_pi= 141.15 to 267.3 MeV is described. Data were obtained detecting the scattered pion and recoil…

Nuclear Experiment · Physics 2009-11-07 M. M. Pavan , J. T. Brack , F. Duncan , A. Feltham , G. Jones , J. Lange , K. J. Raywood , M. E. Sevior , R. Adams , D. F. Ottewell , G. R. Smith , B. Wells , R. L. Helmer , E. L. Mathie , R. Tacik , R. A. Ristinen , I. I. Strakovsky , H-M. Staudenmaier

Deuterated Polycyclic Aromatic Hydrocarbons in the Interstellar Medium: The C--D Band Strengths of Multi-Deuterated Species

Observationally, the interstellar gas-phase abundance of deuterium (D) is considerably depleted and the missing D atoms are often postulated to have been locked up into carbonaceous solids and polycyclic aromatic hydrocarbon (PAH)…

Astrophysics of Galaxies · Physics 2021-08-04 X. J. Yang , Aigen Li , C. Y. He , R. Glaser

Cross-sections and analyzing powers for $(p,n)$ reactions on ${}^{3}{\rm He}$ and ${}^{4}{\rm He}$ at 346 MeV

The cross-sections and analyzing powers for $(p,n)$ reactions on ${}^{3}{\rm He}$ and ${}^{4}{\rm He}$ have been measured at a bombarding energy of $T_p$ = 346 MeV and reaction angles of $\theta_{\rm lab}$ = $9.4^{\circ}$--$27^{\circ}$. The…

Nuclear Experiment · Physics 2008-11-26 E. Ihara , T. Wakasa , M. Dozono , K. Hatanaka , T. Imamura , M. Kato , S. Kuroita , H. Matsubara , T. Noro , H. Okamura , K. Sagara , Y. Sakemi , K. Sekiguchi , K. Suda , T. Sueta , Y. Tameshige , A. Tamii , H. Tanabe , Y. Yamada

A Relationship of Polycyclic Aromatic Hydrocarbon Features with Galaxy Merger in Star-forming Galaxies at $z<0.2$

Using the AKARI, Wide-field Infrared Survey Explorer (WISE), Infrared Astronomical Satellite (IRAS), Sloan Digital Sky Survey (SDSS) and Hubble Space Telescope (HST) data, we investigated the relation of polycyclic aromatic hydrocarbon…

Astrophysics of Galaxies · Physics 2017-09-13 Katsuhiro L. Murata , Rika Yamada , Shinki Oyabu , Hidehiro Kaneda , Daisuke Ishihara , Mitsuyoshi Yamagishi , Takuma Kokusho , Tsutomu T. Takeuchi

Radiative corrections to elastic electron-carbon scattering cross sections in comparison with experiment

The influence of dispersion on the differential scattering cross section in the vicinity of the first diffraction minimum is revisited for collision energies between 200 and 450 MeV. Transient nuclear excitations in the giant resonance…

Nuclear Theory · Physics 2026-03-12 D. H. Jakubassa-Amundsen

Measurement of single electrons and implications for charm production in Au+Au collisions at sqrt(s_NN)= 130 GeV

Transverse momentum spectra of electrons from Au+Au collisions at sqrt(s_NN) = 130 GeV have been measured by the PHENIX experiment at RHIC. The spectra show an excess above the background from photon conversions and light hadron decays. The…

Nuclear Experiment · Physics 2008-11-26 K. Adcox , PHENIX Collaboration

Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb-Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV

The elliptic and triangular flow coefficients $v_2$ and $v_3$ of prompt D$^{0}$, D$^{+}$, and D$^{*+}$ mesons were measured at midrapidity ($|y|<0.8$) in Pb-Pb collisions at the centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}} =…

Nuclear Experiment · Physics 2021-05-19 ALICE Collaboration

Energy scan/dependence of kinetic freeze-out scenarios of multi-strange and other identified particles in central nucleus-nucleus collisions

The transverse momentum (mass) spectra of the multi-strange and non-multi-strange (i.e. other identified) particles in central gold-gold (Au-Au), lead-lead (Pb-Pb), argon-muriate (Ar-KCl) and nickel-nickel (Ni-Ni) collisions over a wide…

High Energy Physics - Phenomenology · Physics 2020-07-27 Muhammad Waqas , Fu-Hu Liu , Rui-Qin Wang , Irfan Siddique