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1. Optimal design and numerical analysis of the rapid precooler

Author: X.-R. Wang, K.-X. Liu, X.-F. Cai, C.-A. Ai, and Y. Wang
Subjects: Nuclear and High Energy Physics, Hypersonic speed, Radiation, Materials science, Nuclear engineering, Heat transfer enhancement, 02 engineering and technology, Heat transfer coefficient, Dissipation, 01 natural sciences, 010305 fluids & plasmas, Coolant, Fin (extended surface), 020303 mechanical engineering & transports, 0203 mechanical engineering, 0103 physical sciences, Heat exchanger, Heat transfer
Abstract: Under the background of highly compact heat exchanger design core for the hypersonic aerospace precooled engine, a rapid precooler is designed and its performance is simulated under the high-altitude background. To this end, firstly, according to the known parameter range, a plate tube-fin rapid precooler unit with the optimal parameters is designed by using the genetic algorithm to find the minimum of the objective function-entransy dissipation number. Then introducing the roughness viscosity coefficient into the improved finite volume method, the effect of rapid heat transfer enhancement is obvious. The fin design can improve the heat transfer efficiency of the heat exchanger unit by 46.5%. Finally, the rapid precooler is designed based on the unit. The performance simulation results indicate that the average temperature has decreased by 735 K for less than 1.5 ms hot air flowing through the rapid precooler at a high speed. The purpose of rapid heat transfer enhancement is achieved. Also we explore the influence of different hot air velocity and coolant velocity on rapid precooler and investigate the influence of scale effect on heat transfer performance.
Published: 2019
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2. Electrical switching of the topological anomalous Hall effect in a non-collinear antiferromagnet above room temperature

Author: J. M. D. Coey, Zhiqi Liu, C. B. Jiang, J. H. Liu, H. Yan, K. Wang, Hua Chen, Z. X. Feng, J. M. Wang, X. R. Wang, and Allan H. MacDonald
Subjects: Phase transition, Materials science, Spintronics, Heterojunction, 02 engineering and technology, Substrate (electronics), 021001 nanoscience & nanotechnology, Topology, 01 natural sciences, Ferroelectricity, Electronic, Optical and Magnetic Materials, Condensed Matter::Materials Science, Hall effect, Electric field, 0103 physical sciences, Antiferromagnetism, Electrical and Electronic Engineering, 010306 general physics, 0210 nano-technology, Instrumentation
Abstract: The anomalous Hall effect is allowed by symmetry in some non-collinear antiferromagnets and is associated with Bloch-band topological features. This topological anomalous Hall effect is of interest in the development of low-power electronic devices, but such devices are likely to demand electrical control over the effect. Here we report the observation of the anomalous Hall effect in high-quality thin films of the cubic non-collinear antiferromagnet Mn3Pt epitaxially grown on ferroelectric BaTiO3 substrates. We demonstrate that epitaxial strain can alter the anomalous Hall conductivity of the Mn3Pt films by more than an order of magnitude. Furthermore, we show that the anomalous Hall effect can be turned on and off by applying a small electric field to the BaTiO3 substrate when the heterostructure is at a temperature of around 360 K and the Mn3Pt is close to the phase transition between a low-temperature non-collinear antiferromagnetic state and a high-temperature collinear antiferromagnetic state. The switching effect is due to piezoelectric strain transferred from the BaTiO3 substrate to the Mn3Pt film by interfacial strain mediation.
Published: 2018
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3. Cataloging the radio-sky with unsupervised machine learning: a new approach for the SKA era

Author: Kai Lars Polsterer, Ray P. Norris, X. R Wang, Nicholas O Ralph, E. Hopkins, Andrew O'Brien, Timothy J Galvin, George Heald, and M. Huynh
Subjects: Luminous infrared galaxy, Physics, 010308 nuclear & particles physics, business.industry, Radio galaxy, FOS: Physical sciences, Astronomy and Astrophysics, Pattern recognition, 01 natural sciences, Galaxy, Set (abstract data type), Space and Planetary Science, 0103 physical sciences, A priori and a posteriori, Unsupervised learning, Artificial intelligence, Astrophysics - Instrumentation and Methods for Astrophysics, business, 010303 astronomy & astrophysics, Host (network), Instrumentation and Methods for Astrophysics (astro-ph.IM), Complement (set theory)
Abstract: We develop a new analysis approach towards identifying related radio components and their corresponding infrared host galaxy based on unsupervised machine learning methods. By exploiting Parallelized rotation and flipping INvariant Kohonen maps (pink), a self-organizing map (SOM) algorithm, we are able to associate radio and infrared sources without the a priori requirement of training labels. We present an example of this method using 894 415 images from the Faint Images of the Radio-Sky at Twenty centimeters (FIRST) and Wide-field Infrared Survey Explorer (WISE) surveys centred towards positions described by the FIRST catalogue. We produce a set of catalogues that complement FIRST and describe 802 646 objects, including their radio components and their corresponding AllWISE infrared host galaxy. Using these data products, we (i) demonstrate the ability to identify objects with rare and unique radio morphologies (e.g. ‘X’-shaped galaxies, hybrid FR I/FR II morphologies), (ii) can identify the potentially resolved radio components that are associated with a single infrared host, (iii) introduce a ‘curliness’ statistic to search for bent and disturbed radio morphologies, and (iv) extract a set of 17 giant radio galaxies between 700 and 1100 kpc. As we require no training labels, our method can be applied to any radio-continuum survey, provided a sufficiently representative SOM can be trained.
Published: 2020
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4. Subnanosecond magnetization reversal of a magnetic nanoparticle driven by a chirp microwave field pulse

Author: M. T. Islam, X. R. Wang, Xiansi Wang, and Yunyan Zhang
Subjects: 010302 applied physics, Range (particle radiation), Materials science, Condensed Matter - Mesoscale and Nanoscale Physics, Field (physics), Condensed matter physics, 01 natural sciences, Pulse (physics), Magnetic field, Amplitude, 0103 physical sciences, Chirp, 010306 general physics, Microwave, Spin-½
Abstract: We investigate the magnetization reversal of a single-domain magnetic nanoparticle driven by a linear down-chirp microwave magnetic field pulse. Numerical simulations based on the Landau-Lifshitz-Gilbert equation reveal that a down-chirp microwave pulse is solely capable of inducing subnanosecond magnetization reversal. With a certain range of initial frequency and chirp rate, the required field amplitude is much smaller than that of a constant-frequency microwave field. The fast reversal is due to the fact that the down-chirp microwave field pulse triggers stimulated microwave absorptions (emissions) by (from) the spin before (after) it crosses over the energy barrier. Applying a spin-polarized current additively to the system further reduces the microwave field amplitude. Our findings provide a way to realize low-cost and fast magnetization reversal.
Published: 2018
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5. Microstructure, thermodynamics and compressive properties of AlCrCuNiZrx(x = 0,1) high-entropy alloys

Author: X.-R. Wang, Z.-Q. Wang, T.-S. Lin, and P. He
Subjects: 010302 applied physics, Materials science, Mechanical Engineering, High entropy alloys, Thermodynamics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Microstructure, 01 natural sciences, Mechanics of Materials, 0103 physical sciences, General Materials Science, 0210 nano-technology
Published: 2016
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6. Design and Analysis of the ARIES-ACT1 Fusion Power Core

Author: D. Navaei, Farrokh Najmabadi, H. H. Toudeshki, A. F. Rowcliffe, X. R. Wang, Aries Team, and Mark S. Tillack
Subjects: Nuclear and High Energy Physics, Materials science, Tokamak, Power station, Mechanical Engineering, Nuclear engineering, Fusion power, 01 natural sciences, 010305 fluids & plasmas, law.invention, Nuclear Energy and Engineering, law, 0103 physical sciences, General Materials Science, 010306 general physics, Civil and Structural Engineering
Abstract: ARIES-ACT1 is the latest in a series of tokamak power plant designs that capitalize on the high-temperature capabilities and attractive safety and environmental characteristics of SiC composites co...
Published: 2015
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7. ARIES-ACT2 DCLL Power Core Design and Engineering

Author: C. Koehly, Mark S. Tillack, Aries Team, H. H. Toudeshki, Farrokh Najmabadi, X. R. Wang, and Siegfried Malang
Subjects: Pressure drop, Nuclear and High Energy Physics, Tokamak, Power station, 020209 energy, Mechanical Engineering, Nuclear engineering, Maintainability, Thermal power station, 02 engineering and technology, Blanket, 01 natural sciences, 010305 fluids & plasmas, law.invention, Nuclear Energy and Engineering, Conceptual design, law, High availability, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Environmental science, General Materials Science, Civil and Structural Engineering
Abstract: ARIES-ACT2 is a conventional tokamak power plant conceptual design that uses a dual-coolant lead-lithium (DCLL) blanket concept with a RAFS (reduced-activation ferritic steel) first-wall (FW) and blanket structure. The design concept is the first fully integrated study of the DCLL blanket in a tokamak power plant. The major engineering efforts were to develop a credible configuration that can meet aggressive maintenance goals and achieve high availability and maintainability; to design a DCLL blanket that can meet tritium breeding requirements with reasonable helium and Pb-17Li cooling schemes to remove the surface and volumetric thermal power in the blanket while keeping the helium pressure drop, magnetohydrodynamic (MHD) pressure drop, and total pumping power low, and material temperatures and stresses at an acceptable level; to design manifolding and access pipes to connect/disconnect the inboard and outboard blanket sectors to the ring headers located underneath the reactor without affecting m...
Published: 2015
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8. ARIES-ACT1 System Configuration, Assembly, and Maintenance

Author: H. H. Toudeshki, Mark S. Tillack, C. Koehly, Farrokh Najmabadi, X. R. Wang, Siegfried Malang, and Aries Team
Subjects: Nuclear and High Energy Physics, Computer science, 020209 energy, Mechanical Engineering, Mechanical engineering, 02 engineering and technology, System configuration, 01 natural sciences, 010305 fluids & plasmas, Core (optical fiber), Nuclear Energy and Engineering, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Engineering design process, Civil and Structural Engineering
Abstract: ARIES-ACT1 engineering design efforts were devoted to developing a credible configuration that allows for rapid removal of full-power core sectors followed by disassembly in hot cells during mainte...
Published: 2015
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9. Radio Galaxy Zoo: Knowledge Transfer Using Rotationally Invariant Self-organizing Maps

Author: O. I. Wong, Ray P. Norris, Kai Lars Polsterer, Stanislav S. Shabala, M. Huynh, E. Hopkins, M. J. Alger, Lawrence Rudnick, T. J. Galvin, and X. R. Wang
Subjects: Self-organizing map, 010504 meteorology & atmospheric sciences, Channel (digital image), Computer science, Radio galaxy, business.industry, Feature vector, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, FOS: Physical sciences, Astronomy and Astrophysics, Pattern recognition, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Random forest, Space and Planetary Science, 0103 physical sciences, Embedding, Artificial intelligence, Invariant (mathematics), Astrophysics - Instrumentation and Methods for Astrophysics, Scale (map), business, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, 0105 earth and related environmental sciences
Abstract: With the advent of large scale-surveys the manual analysis and classification of individual radio source morphologies is rendered impossible as existing approaches do not scale. The analysis of complex morphological features in the spatial domain is a particularly important task. Here, we discuss the challenges of transferring crowdsourced labels obtained from the Radio Galaxy Zoo project and introduce a proper transfer mechanism via quantile random forest regression. By using parallelized rotation and flipping invariant Kohonen-maps, image cubes of Radio Galaxy Zoo selected galaxies formed from the Faint Images of the Radio Sky at Twenty-cm (FIRST) radio continuum and the Wide-field Infrared Survey Explorer (WISE) infrared all-sky surveys are first projected down to a two-dimensional embedding in an unsupervised way. This embedding can be seen as a discretized space of shapes with the coordinates reflecting morphological features as expressed by the automatically derived prototypes. We find that these prototypes have reconstructed physically meaningful processes across two channel images at radio and infrared wavelengths in an unsupervised manner. In the second step, images are compared with those prototypes to create a heat map, which is the morphological fingerprint of each object and the basis for transferring the user generated labels. These heat maps have reduced the feature space by a factor of 248, and are able to be used as the basis for subsequent machine-learning (ML) methods. Using an ensemble of decision trees we achieve upwards of 85.7% and 80.7% accuracy when predicting the number of components and peaks in an image, respectively, using these heat maps. We also question the currently used discrete classification schema and introduce a continuous scale that better reflects the uncertainty in transition between two classes, caused by sensitivity and resolution limits.
Published: 2019
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10. ARIES-ACT1 Power Core Engineering

Author: Mark S. Tillack, Siegfried Malang, Farrokh Najmabadi, Aries Team, and X. R. Wang
Subjects: Nuclear and High Energy Physics, Tokamak, Power station, Computer science, 020209 energy, Mechanical Engineering, Divertor, Nuclear engineering, Energy conversion efficiency, 02 engineering and technology, Blanket, 01 natural sciences, Brayton cycle, 010305 fluids & plasmas, Coolant, law.invention, Nuclear Energy and Engineering, Conceptual design, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Civil and Structural Engineering
Abstract: ARIES-ACT1 is an advanced tokamak power plant conceptual design that utilizes SiC composite structural material in the blanket and PbLi as the tritium breeder and coolant. This design concept represents an evolutionary step from ARIES-AT, which has guided tokamak research programs for the past decade. In conjunction with a helium Brayton power cycle, the high primary coolant outlet temperature allows thermal conversion efficiency of 58%. The self-cooled blanket and He-cooled W-alloy divertor provide the ability to survive relatively high power density with acceptable projected lifetime. In ARIES-ACT1, we attempted to add “robustness” to the design point without major sacrifices in performance. In this paper, we will discuss the main features of the power core and selected details in the design and analysis.
Published: 2013
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11. Overall Power Core Configuration and System Integration for ARIES-ACT1 Fusion Power Plant

Author: X. R. Wang, Farrokh Najmabadi, Aries Team, Siegfried Malang, and Mark S. Tillack
Subjects: Nuclear and High Energy Physics, Power station, Computer science, business.industry, 020209 energy, Mechanical Engineering, Nuclear engineering, 02 engineering and technology, Fusion power, 01 natural sciences, 010305 fluids & plasmas, Power (physics), Core (optical fiber), Nuclear Energy and Engineering, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, System integration, General Materials Science, business, Civil and Structural Engineering
Abstract: ARIES-ACT1 power plant has been designed and configured to allow for rapid removal of full power core sectors followed by disassembly in hot cells during maintenance operation. To achieve high avai...
Published: 2013
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12. Erratum: Skyrmion Creation and Manipulation by Nano-Second Current Pulses

Author: X. R. Wang and H. Y. Yuan
Subjects: Physics, Multidisciplinary, Skyrmion, 02 engineering and technology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 021001 nanoscience & nanotechnology, 01 natural sciences, Engineering physics, Article, 0103 physical sciences, Nano, Current (fluid), 010306 general physics, 0210 nano-technology
Abstract: Easy creation and manipulation of skyrmions is important in skyrmion based devices for data storage and information processing. We show that a nano-second current pulse alone is capable of creating/deleting and manipulating skyrmions in a spin valve with a perpendicularly magnetized free layer and broken chiral symmetry. Interestingly, for an in-plane magnetized fixed layer, the free layer changes from a single domain at zero current to a Neel wall at an intermediate current density. Reverse the current polarity, the Neel wall changes to its image inversion. A properly designed nano-second current pulse, that tends to convert one type of Neel walls to its image inversion, ends up to create a stable skyrmion without assistance of external fields. For a perpendicularly magnetized fixed layer, the skyrmion size can be effectively tuned by a current density.
Published: 2016
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13. Innovative First Wall Concept Providing Additional Armor at High Heat Flux Regions

Author: Aries Team, Siegfried Malang, Mark S. Tillack, and X. R. Wang
Subjects: Nuclear and High Energy Physics, Materials science, Power station, 020209 energy, Mechanical Engineering, Nuclear engineering, Divertor, 02 engineering and technology, Fusion power, 01 natural sciences, 010305 fluids & plasmas, Coolant, Nuclear Energy and Engineering, Heat flux, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Transient (oscillation), Embrittlement, Stress intensity factor, Civil and Structural Engineering
Abstract: The first wall in a fusion power plant is usually designed to accommodate a steady-state heat flux up to 1.0 MW/m, meeting the design criteria, including: (1) material temperature limits for avoiding embrittlement and thermal creep strength, (2) primary stress intensity limit in the elastic regime (Sm limit of the ASME code), and the sum of the primary and secondary stresses under 3 Sm, (3) coolant pumping power influencing the cost of electricity. In our ARIES-CS and ARIES-ST power plant studies, the temperatures and stresses are very close to the limits for the selected reduced-activation ferritic steel (RAFS) as structural material and He as coolant with operating pressure of 8 MPa and a surface heat flux of 0.76 MW/m. However, there are indications that transient peak heat fluxes up to ~ 2 MW/m for time periods up to a few seconds can occur at certain regions of the FW, accompanied by substantially higher erosion in such regions. In order to avoid intolerable damage during such transients, it is necessary to find a kind of the FW armor that can survive in such regions. It is mandatory that such transients do not require the FW exchange because this could lower the availability of the power plant to intolerable values. This paper presents the innovative FW armor design concept similar to the micro-brush concept developed for ITER divertor target. It is a combination of the pure W or W-alloy (such as WL10) and 12YWT ODS-steel for an assumed transient heat flux of 2 MW/m over a 5 second period of time.
Published: 2011
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14. Elastic-Plastic Analysis of the Transition Joint for a High Performance Divertor Target Plate

Author: D. Navaei, Mark S. Tillack, X. R. Wang, Siegfried Malang, and Aries Team
Subjects: Nuclear and High Energy Physics, Structural material, Materials science, 020209 energy, Mechanical Engineering, Divertor, chemistry.chemical_element, 02 engineering and technology, Mechanics, Tungsten, 01 natural sciences, 010305 fluids & plasmas, Elastic plastic, Coolant, Nuclear Energy and Engineering, chemistry, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Joint (geology), Civil and Structural Engineering
Abstract: The use of tungsten as a plasma-facing material necessitates a transition joint to the structural material of the primary coolant loop at some location in order to transport the coolant to the heat...
Published: 2011
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15. Design Optimization of High-Performance Helium-Cooled Divertor Plate Concept

Author: A.R. Raffray, X. R. Wang, Aries Team, and Siegfried Malang
Subjects: Nuclear and High Energy Physics, Structural material, Materials science, Armour, Power station, 020209 energy, Mechanical Engineering, Nuclear engineering, Divertor, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, 010305 fluids & plasmas, Nuclear Energy and Engineering, chemistry, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Helium, Civil and Structural Engineering
Abstract: A helium-cooled plate-type divertor design concept has being proposed within the framework of the ARIES power plant study. W tiles are used as sacrificial armor, W-alloy as main structural material...
Published: 2009
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16. Dilepton mass spectra in p+p collisions at s=200 GeV and the contribution from open charm

Author: K. S. Joo, K. N. Barish, Hiroaki Ohnishi, T. Ichihara, J. Chiba, Matthew G. Reuter, M. L. Brooks, Takahiro Fusayasu, Tadaaki Isobe, A. Deshpande, A. P.T. Palounek, Alexander Malakhov, L. Tomášek, Takao Sakaguchi, D. Sharma, D. Silvermyr, P. L. McGaughey, Xingguo Li, C. Klein-Boesing, L. S. Zolin, W. J. Park, X. He, O. O. Omiwade, M. Chiu, V. S. Pantuev, P. D. Barnes, A. Yanovich, V. Peresedov, Tae-Yeon Lee, A. V. Kazantsev, Martin Purschke, A. D. Frawley, T. Tabaru, P. Mikeš, Herve Borel, D. Lynch, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Christophe Pierre Suire, Alexander Milov, J. Gosset, S. P. Sorensen, Dylan Walker, S. Batsouli, H. Masui, A. K. Dubey, D. Kotchetkov, J. G. Lajoie, S. H. Aronson, W. Holzmann, Saskia Mioduszewski, Junji Tojo, S. N. White, I. Younus, T. Hachiya, Y. L. Yamaguchi, B. Komkov, A. A. Bickley, B. Love, I. J. Choi, Minghui Liu, A. Kravitz, Youngil Kwon, C. Silvestre, A. Morreale, R. A. Soltz, Alexei Khanzadeev, Kenneth Francis Read, Z. Fraenkel, M. Gonin, K. Okada, V. L. Rykov, T. Dahms, A. G. Litvinenko, Norio Saito, A. Soldatov, M. A. L. Leite, J. Velkoška, D. Kawall, Marisilvia Donadelli, V. Bumazhnov, H. Pereira, Andry Malala Rakotozafindrabe, B. Sahlmueller, B. Azmoun, A. Král, M. J. Kweon, M. Rosati, K. Das, H. En'yo, K. Tanida, M. J. Leitch, Hiroyuki Okada, M. Grosse Perdekamp, E. P. Hartouni, Maya Hachiya Shimomura, Y. I. Makdisi, J. Jin, O. Zaudtke, M. Ouchida, M. Issah, H. A. Gustafsson, M. Mitrovski, E. Stenlund, A. A. Vinogradov, V. I. Kochetkov, H. Sakata, A. Kozlov, I. Nakagawa, J. Asai, C. Zhang, M. Virius, E. M. Takagui, Eva Haslum, R. S. Towell, O. Drapier, Frank Ellinghaus, B. Lenzi, M. D. Malik, M. Oka, E. Vznuzdaev, I. Garishvili, Akio Kiyomichi, J. Murata, E. R. Kinney, R. Seto, K. Haruna, S. Yokkaichi, M. J. Tannenbaum, D. P. Morrison, S. Campbell, A. Dion, Jiangyong Jia, Y. Goto, Jan Rak, V. Babintsev, V. E. Semenov, T. A. Shibata, N. N. Ajitanand, M. Wysocki, Viktor Riabov, Shingo Sakai, Atsushi Taketani, A. Enokizono, J. Zimányi, Tatsuya Chujo, N. Kurihara, A. Glenn, R. Lacey, R. Granier de Cassagnac, Gerd Joachim Kunde, I. Shein, D. Mukhopadhyay, S. Rembeczki, G. S. Kyle, A. Hadj Henni, Rushan Han, A. Adare, S. Afanasiev, A. Ster, James Alexander, I. Tserruya, S. Butsyk, Yu. Efremenko, V. Singh, C. Y. Chi, Vladimir Samsonov, K. Boyle, Robert F. Hobbs, Wei Xie, D. Winter, M. P. Comets, J. G. Boissevain, Masashi Kaneta, D. Yu Peressounko, M. K. Lee, C. L. Woody, Takahiro Nakamura, R. Averbeck, Byung-Sik Hong, P. Tarján, Debashish Pal, D. Hornback, M. Heffner, A. Bazilevsky, S. Sawada, C. P. Singh, Alberto Baldisseri, B. M. Johnson, K. Dehmelt, Jen-Chieh Peng, Susumu Oda, J. Ying, A. Franz, A. Durum, A. Taranenko, Kazushi Miki, Philippe Rosnet, C. Pinkenburg, Tamas Ferenc Csorgo, J. L. Nagle, Alexandre Lebedev, D. Isenhower, A. Toia, Dong Jo Kim, Osamu Jinnouchi, O. Dietzsch, E. T. Atomssa, H. Valle, D. M. Lee, A. Isupov, J. Sziklai, Senta Greene, S. F. Pate, M. Stepanov, G. Roche, L. Mašek, Y. J. Mao, T. V. Moukhanova, S. Kametani, I. V. Sourikova, Brian Cole, Anne Marie Sickles, D. E. Fields, B. V. Jacak, B. E. Norman, H. Al-Bataineh, M. Naglis, E. O'Brien, X. R. Wang, J. H. Kang, M. McCumber, E. H. Kim, J. S. Haggerty, S. Esumi, A. Romana, C. L. Silva, I. Ravinovich, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Masayasu Ishihara, V. Papavassiliou, Sébastien Gadrat, Y. Nagata, Susumu Sato, Sergey Fokin, G. R. Young, T. L. Thomas, L. Aphecetche, T. Horaguchi, Ryugo S. Hayano, Y. Riabov, Y. S. Lai, Kenta Shigaki, K. S. Sim, M. Nguyen, V. Dzhordzhadze, Y. Watanabe, A. S. Nyanin, R. Bennett, J. L. Charvet, H. Hiejima, M. Finger, Y. Fukao, A. Shevel, T. Hester, T. E. Miller, Johannes Peter Wessels, V-N. Tram, F. Matathias, Kensuke Homma, Motoi Inaba, Mate Csanad, P. Chung, P. Constantin, S. Chernichenko, David D'Enterria, M. N. Wagner, W. S. Emam, B. Bassalleck, M. Konno, J. T. Mitchell, R. Seidl, Vladislav Manko, H. Kanou, Taku Gunji, H. Gong, M. Slunečka, J. Seele, F. Kajihara, S. Belikov, H. Delagrange, S. Zhou, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, Y. Nakamiya, G. Baksay, K. O. Eyser, A. K. Purwar, K. Fujiwara, K. Imai, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, H. W. Van Hecke, L. Kochenda, J. Egdemir, Jason Kamin, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, A. Churyn, S. Bathe, D. Jouan, R. Pak, Agneta Oskarsson, N. Kamihara, R. Armendariz, Kazuyoshi Kurita, A. Drees, J. Kubart, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, A. Kiss, Z. Yasin, Henner Buesching, Steven E. Skutnik, Marcus Hohlmann, H. Qu, Hideki Hamagaki, K. Aoki, G. David, N. Grau, K. Shoji, P. W. Stankus, C. R. Cleven, C. Haegemann, Y. Inoue, R. Vértesi, Dong-Hun Kim, Jason Newby, J. E. Frantz, E. J. Desmond, Charles Maguire, M. Togawa, J. Park, Y. Tsuchimoto, I. E. Yushmanov, E. Kistenev, H. Harada, M. B. Deaton, Y. Tanaka, F. Staley, L. Baksay, H. Pei, K. Nakano, W. E. Sondheim, P. A. Rukoyatkin, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, François Fleuret, and S. Takagi
Subjects: Quantum chromodynamics, Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, 01 natural sciences, Nuclear physics, Yield (chemistry), 0103 physical sciences, Mass spectrum, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Lepton
Abstract: PHENIX has measured the electron-positron pair mass spectrum from 0 to 8 GeV/c(2) in p + p collisions at root s = 200 GeV. The contributions from light meson decays to e(+)e(-) pairs have been determined based on measurements of hadron production cross sections by PHENIX. Within the systematic uncertainty of similar to 20% they account for all e(+)e(-) pairs in the mass region below similar to 1 GeV/c(2). The e(+)e(-) pair yield remaining after subtracting these contributions is dominated by semileptonic decays of charmed hadrons correlated through flavor conservation. Using the spectral shape predicted by PYTHIA, we estimate the charm production cross section to be 544 +/- 39(stat) +/- 142(syst) +/- 200(model) pb. which is consistent with QCD calculations and measurements of single leptons by PHENIX. (C) 2008 Elsevier BV. All rights reserved.
Published: 2009
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17. ARIES-CS Magnet Conductor and Structure Evaluation

Author: Leslie Bromberg, Siegfried Malang, L. P. Ku, X. R. Wang, Carl J. Martin, Lester M. Waganer, J. F. Lyon, J.H. Schultz, Laila El-Guebaly, and A.R. Raffray
Subjects: Nuclear and High Energy Physics, Power station, business.industry, Computer science, 020209 energy, Mechanical Engineering, Shell (structure), Mechanical engineering, 02 engineering and technology, Solid modeling, Modular design, 01 natural sciences, 010305 fluids & plasmas, Complex geometry, Nuclear Energy and Engineering, Conceptual design, Electromagnetic coil, Magnet, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, business, Civil and Structural Engineering
Abstract: The ARIES-CS study focusing on the conceptual design and assessment of a compact stellarator power plant identified the important advantages and key issues associated with such a design. The coil configuration and structural support approach represent key design challenges, with the final design and material choices affected by a number of material and geometry constraints. This paper describes the design configuration and analysis and material choices for the ARIES-CS magnets and its structure. To meet aggressive cost and assembly/maintenance goals, the magnets are designed as lifetime components. Due to the very complex geometry, one of the goals of the study was to provide a robust operational design. This decision has significant implications on cost and manufacturing requirements. Concepts with both conventional and advanced superconductors have been explored. The coil structure design approach adopted is to wind all six modular coils of one field period in grooves in one monolithic coil structural shell (one per field period). The coil structural shells are then bolted together to form a strong structural shell to react the net radial forces. Extensive engineering analyses of the coil system have been performed using ANSYS shell and solid modeling. These include electromagnetic (EM) analyses to calculate themore » magnetic fields and EM forces and structural analyses to evaluate the structural responses and optimize the coil support system, which has a considerable impact on the cost of the ARIES-CS power plant.« less
Published: 2008
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18. Designing ARIES-CS Compact Radial Build and Nuclear System: Neutronics, Shielding, and Activation

Author: Paul P. H. Wilson, X. R. Wang, Farrokh Najmabadi, Rachel N. Slaybaugh, J. F. Lyon, Leslie Bromberg, Siegfried Malang, Aries-Cs Team, Timothy J. Tautges, Carl J. Martin, R. Raffray, Mohamed E. Sawan, Brad J. Merrill, Douglass L. Henderson, G. Sviatoslavsky, Ahmad M. Ibrahim, Laila El-Guebaly, Brian C. Kiedrowski, Lester M. Waganer, and L. P. Ku
Subjects: Physics, Nuclear and High Energy Physics, Neutron transport, Power station, Design activities, 020209 energy, Mechanical Engineering, Nuclear engineering, Magnetic confinement fusion, 02 engineering and technology, Nuclear system, 01 natural sciences, 010305 fluids & plasmas, law.invention, Nuclear Energy and Engineering, law, 0103 physical sciences, Electromagnetic shielding, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Stellarator, Civil and Structural Engineering
Abstract: Within the ARIES-CS project, design activities have focused on developing the first compact device that enhances the attractiveness of the stellarator as a power plant. The objectives of this paper...
Published: 2008
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19. Divertor Configuration and Heat Load Studies for the ARIES-CS Fusion Power Plant

Author: T. B. Kaiser, J. F. Lyon, X. R. Wang, A.R. Raffray, M. C. Zarnstorff, Rajesh Maingi, A. Grossman, T. K. Mau, Aries-Cs Team, and L. P. Ku
Subjects: Physics, Nuclear and High Energy Physics, 020209 energy, Mechanical Engineering, Divertor, Nuclear engineering, Magnetic confinement fusion, 02 engineering and technology, Plasma, Fusion power, 01 natural sciences, 010305 fluids & plasmas, law.invention, Nuclear physics, Nuclear Energy and Engineering, Heat flux, Physics::Plasma Physics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Heat load, Particle flux, Stellarator, Civil and Structural Engineering
Abstract: The critical issue of divertor configuration for heat and particle flux control in a conceptual ARIES compact stellarator (CS) reactor is addressed. The goal is to determine a divertor location and...
Published: 2008
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20. Attractive Design Approaches for a Compact Stellarator Power Plant

Author: Siegfried Malang, X. R. Wang, A.R. Raffray, and Laila El-Guebaly
Subjects: Scheme (programming language), Nuclear and High Energy Physics, Power station, 020209 energy, Mechanical Engineering, Magnetic confinement fusion, 02 engineering and technology, Blanket, Key issues, 01 natural sciences, Brayton cycle, 010305 fluids & plasmas, law.invention, Nuclear Energy and Engineering, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Systems engineering, General Materials Science, computer, Stellarator, Civil and Structural Engineering, computer.programming_language
Abstract: This paper summarizes the results from the engineering effort during Phase I of the ARIES-CS study, covering the different blanket configurations and maintenance schemes that were considered and assessed. The main design parameters are summarized and key issues are discussed including the impact of different physics configurations on the engineering choices. These results will be used as the basis to down-select to a couple of combinations of blanket configuration and maintenance scheme for more detailed studies.
Published: 2005
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21. Thermal Behavior and Operating Requirements of IFE Direct-Drive Target

Author: R.W. Petzoldt, A.R. Raffray, Mark S. Tillack, J. Pulsifer, and X. R. Wang
Subjects: Physics, Nuclear and High Energy Physics, Computer simulation, 020209 energy, Mechanical Engineering, Nuclear engineering, 02 engineering and technology, Fusion power, Radiation, 01 natural sciences, Symmetry (physics), 010305 fluids & plasmas, Nuclear physics, Nuclear Energy and Engineering, 0103 physical sciences, Thermal, Heat transfer, 0202 electrical engineering, electronic engineering, information engineering, Deposition (phase transition), General Materials Science, Inertial confinement fusion, Civil and Structural Engineering
Abstract: During injection, inertial fusion energy (IFE) direct drive (DD) targets are subject to heating from energy exchange with the background gas and radiation from the wall. This heat deposition could lead to deuterium-tritium (DT) phase change and target deformation violating the target physics symmetry requirements. This paper assesses the thermal behavior of the target under such conditions and explores possible ways of extending the target lifetime.
Published: 2003
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22. Direct photon production ind+Au collisions atsNN=200GeV

Author: A. Devismes, Y. Onuki, Taku Gunji, H. Gong, J. Seele, Alexander Milov, I. Nakagawa, Jan Rak, T. Engelmore, F. Kajihara, S. V. Afanasiev, L. Aphecetche, Takeo Kawabata, H. Pei, M. C. McCain, R. Lacey, Aaron Angerami, Tadaaki Isobe, O. Drapier, S. S. Adler, G. S. Kyle, H. Delagrange, Frank Ellinghaus, N. Willis, R. Granier de Cassagnac, A. Adare, E. R. Kinney, D. P. Morrison, James Alexander, S. Campbell, W. A. Zajc, Hongfang Liu, D. E. Fields, A. Dion, M. Slunečka, R. Averbeck, P. L. McGaughey, Byung-Sik Hong, V. Baublis, S. Zhou, A. Denisov, V. E. Semenov, J. Zimányi, B. V. Jacak, A. Bazilevsky, V. Cianciolo, Johannes Peter Wessels, Hiroaki Ohnishi, K. B. Lee, H. J. Kim, Y. Fukao, S. D. Rolnick, T. Murakami, Y. Tomita, Philippe Rosnet, Sergey Fokin, C. Silvestre, M. McCumber, A. K. Purwar, Robert F. Hobbs, J. M. Qualls, T. Hester, Alexandre Lebedev, R. Vértesi, A. Hoover, A. Hadj Henni, Dmitry Blau, Ch. Finck, Jason Newby, J. Murata, I. Tserruya, Yu. Efremenko, D. M. Lee, Xiaopeng Zong, E. J. Desmond, Masamichi Ishihara, B. Khachaturov, Beomkyu Kim, Jean-Pierre Cussonneau, M. Togawa, J. Hanks, E. Vazquez-Zambrano, D. Roach, S. Belikov, K. S. Joo, Florian Bauer, K. Watanabe, V. Singh, K. Shoji, A. Rakotozafindrabe, P. Tarján, Marisilvia Donadelli, K. M. Kijima, V. Bumazhnov, M. P. Comets, G. B. Kim, Sean A. Kelly, Minghui Liu, Wei Xie, V. S. Pantuev, M. Kasai, T. Matsumoto, K. Kiriluk, M. Chiu, Ajit Kumar Mohanty, Y. Tsuchimoto, Y. Iwanaga, Maya Hachiya Shimomura, I. E. Yushmanov, Eun-Hee Kim, M. Ouchida, Alexei Khanzadeev, Viktor Veszpremi, T. A. Shibata, C. L. Silva, T. Sato, N. Bruner, N. Means, E. Stenlund, Sung Keun Park, J. B. Choi, M. Heffner, P. W. Stankus, Kenneth Francis Read, S. Sawada, J. Ying, A. Franz, K. Hasuko, B. D. Fox, S. Tarafdar, K. S. Sim, J. Hamblen, A. Yu. Semenov, J. Asai, J. H. Bhom, H. A. Gustafsson, T. Ichihara, N. Apadula, R. Tanabe, D. Layton, N. N. Ajitanand, T. V. Moukhanova, Margaret Harvey, V-N. Tram, N. Grau, O. Dietzsch, B. Komkov, E. T. Atomssa, Y. I. Makdisi, Xingguo Li, Junji Tojo, Y. Kwon, J. Gosset, H. Valle, D. Isenhower, A. Toia, L. Mašek, A. G. Hansen, Shingo Sakai, Hirohiko Sato, Takahiro Nakamura, A. V. Kazantsev, Y. Tanaka, E. Mannel, T. K. Shea, J. P. Sullivan, R. Yang, H. Hiejima, Dipanwita Dutta, B. Espagnon, Joakim Nystrand, Eunja Kim, Eva Haslum, B. Lenzi, K. A. Drees, C. Zhang, German Martinez, Motoi Inaba, P. Ružička, Senta Greene, S. Taneja, K. Okada, Jen-Chieh Peng, W. C. Chang, D. McGlinchey, M. I. Nagy, Julia Velkovska, R. M. Wright, L. Tomášek, M. Rosati, M. Velkovsky, S. P. Sorensen, H. En'yo, D. Watanabe, Susumu Oda, A. T. Basye, M. D. Malik, C. L. Woody, A. Berdnikov, J. L. Charvet, Viktor Riabov, K. Imai, P. Constantin, M. J. Leitch, E. Vznuzdaev, H. Qu, H. J. Moon, F. Staley, L. Baksay, O. Chvala, M. Nihashi, A. Durum, B. Fadem, E. O'Brien, Gary Grim, M. J. Tannenbaum, Rushan Han, S. Esumi, S. Batsouli, K. V. Dharmawardane, A. Caringi, T. E. Miller, K. Karatsu, Inkyu Park, M. Inuzuka, R. A. Soltz, D. S. Brown, K. Yamaura, Z. Conesa del Valle, Hideki Hamagaki, K. Aoki, Seong H. Kim, Charles Maguire, S. Leckey, Takafumi Niida, Anne Marie Sickles, A. A. Vinogradov, Henrik Tydesjö, T. C. Awes, Kyoichiro Ozawa, T. Liška, R. Santo, Jiangyong Jia, Y. Goto, A. Ster, A. Enokizono, J. S. Bok, Jun Kikuchi, J. G. Lajoie, T. Hachiya, David D'Enterria, G. David, M. Grosse Perdekamp, V. V. Ikonnikov, K. I. Hahn, P. Chung, Dong Jo Kim, M. E. Connors, A. Pierson, J. M. Burward-Hoy, Josh Moss, Kiyoshi Tanida, M. K. Dayananda, M. Wysocki, D. Sharma, J. Imrek, D. Kleinjan, R. P. Pisani, D. Mukhopadhyay, R. Ichimiya, S. Rembeczki, S. Butsyk, Vladimir Samsonov, H. Iinuma, I. Otterlund, A. Veicht, A. Datta, E. Kistenev, I. J. Choi, A. Kravitz, J. M. Heuser, M. Gonin, Nikolay Tyurin, D. Bucher, I. V. Sourikova, H. Torii, T. L. Thomas, S. Yokkaichi, A. P.T. Palounek, C. H. Kuberg, G. R. Young, L. Sanfratello, David Olle Rickard Silvermyr, T. Jones, Peter Christiansen, K. Das, P. Lichtenwalner, D. Hornback, Tae-Yeon Lee, V.N. Penev, Martin Purschke, M. A. Volkov, J. Chiba, Alice Mignerey, Ryugo S. Hayano, L. D'Orazio, C. A. Aidala, D. Winter, D. Yu Peressounko, C. M. Camacho, E. P. Hartouni, A. Sukhanov, K. Kurita, H. Pereira, Prashant Shukla, G. C. Mishra, Y. Riabov, Kenta Shigaki, P. J. Kroon, Y. Ikeda, A. Taranenko, M. Nguyen, Kazushi Miki, Takao Sakaguchi, Tamas Ferenc Csorgo, T. Kempel, Dong-Hun Kim, J. G. Boissevain, S. F. Pate, Y. Morino, Masashi Kaneta, A. S. Nyanin, C. Klein-Boesing, Ke. Nakamura, Brajesh K. Singh, Rachid Nouicer, Norio Saito, M. Proissl, Tsutomu Mibe, J. L. Nagle, H. Al-Bataineh, X. R. Wang, K. Katou, A. D. Frawley, R. Pak, S. Huang, S. H. Aronson, C. Pinkenburg, V. Papavassiliou, W. Holzmann, Sébastien Gadrat, D. Kotchetkov, M. Stepanov, G. Roche, S. Kametani, T. Horaguchi, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, A. Morreale, M. A. L. Leite, Z. Fraenkel, J. L. Drachenberg, Y. S. Lai, R. K. Choudhury, S. C. Johnson, B. Azmoun, Y. J. Mao, A. Král, M. J. Kweon, Y. Le Bornec, M. Oka, K. S. Lee, P. Liebing, C. A. Ogilvie, T. K. Hemmick, R. Belmont, J. S. Kapustinsky, J. M. Durham, V. Babintsev, A. Kiss, Henner Buesching, Steve Edwards, Yasuo Miake, P. Chand, Marcus Hohlmann, L. A. Linden Levy, P. Mikeš, X. Jiang, L. Kochenda, M. Issah, H. Kobayashi, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, K. Sakashita, Vaclav Vrba, Klaus Johannes Reygers, R. Kohara, Jason Kamin, M. Csanad, Rui Wei, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, J.-G. Park, A. Churyn, D. Jouan, Ferenc Deák, N. Kamihara, Aram Kim, R. Armendariz, C. Oakley, A. Drees, Xiao-yan Li, K. O. Eyser, K. Fujiwara, S. W. Nam, Y. L. Yamaguchi, I. Ravinovich, M. Bai, S. S. Ryu, Zhiying You, R. Bennett, H. W. Van Hecke, M. Kawashima, Ahmed Al-Jamel, M. Finger, S. Dairaku, O. Zaudtke, M. Virius, C. H. Chen, Y. Cobigo, J. E. Frantz, Jongmin Lee, Herve Borel, A. Glenn, A. Taketani, D. S. Jumper, V. L. Rykov, T. Dahms, X. He, Y. Aramaki, V. Peresedov, J. Koster, H. Masui, A. K. Dubey, A. A. Bickley, S. Takagi, S. Y. Fung, B. Meredith, K. N. Barish, S. Bathe, F. Matathias, Kensuke Homma, E. Richardson, John Hill, K. Oyama, S. Chernichenko, S. Sano, H. Lim, B. Bassalleck, Toru Sugitate, L. D. Isenhower, T. J. Uam, M. Konno, M. L. Brooks, B. Love, François Fleuret, Marie Germain, A. G. Litvinenko, J. T. Mitchell, Osamu Jinnouchi, F. K. Wohn, A. Kozlov, R. Seto, K. Haruna, Matthew G. Reuter, Takahiro Fusayasu, R. Seidl, Vladislav Manko, I. D. Ojha, Alexander Malakhov, V. Dzhordzhadze, I. Danchev, L. S. Zolin, W. J. Park, Christopher Rosen, P. D. Barnes, A. Yanovich, S. N. White, Deepa Thomas, T. Chujo, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, X. Camard, C. Vale, B. S. Chang, J. Klay, Y. Nakamiya, D. Lynch, G. Baksay, M. T. Bjorndal, B. Sahlmueller, Y. J. Kim, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, D. Kawall, H. Themann, V. I. Kochetkov, Gerd Joachim Kunde, I. Shein, M. Kurosawa, Saskia Mioduszewski, K. Sedgwick, Alberto Baldisseri, Yves Roland Schutz, D. Pal, J. Jin, M. Naglis, E. M. Takagui, C. Baumann, C. P. Singh, B. M. Johnson, R. J. Petti, A. Isupov, C. Suire, J. Sziklai, Brian Cole, R. S. Towell, Susumu Sato, M. Muniruzzaman, I. Garishvili, Akio Kiyomichi, F. Wei, and C. Y. Chi
Subjects: Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Virtual particle, 01 natural sciences, 7. Clean energy, Photon yield, Nuclear physics, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Direct photons have been measured in root s(NN) = 200 GeV d + Au collisions at midrapidity. A wide p(T) range is covered by measurements of nearly real virtual photons (1 < p(T) < 6 GeV/c) and real photons (5 < p(T) < 16 GeV/c). The invariant yield of the direct photons in d + Au collisions over the scaled p + p cross section is consistent with unity. Theoretical calculations assuming standard cold-nuclear-matter effects describe the data well for the entire p(T) range. This indicates that the large enhancement of direct photons observed in Au + Au collisions for 1.0 < p(T) < 2.5 GeV/c is attributable to a source other than the initial-state nuclear effects.
Published: 2013
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23. Erratum: Measurement of transverse single-spin asymmetries forJ/ψproduction in polarizedp+pcollisions ats=200 GeV[Phys. Rev. D82, 112008 (2010)]

Author: A. Adare, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander, H. Al-Ta’ani, A. Angerami, K. Aoki, N. Apadula, L. Aphecetche, Y. Aramaki, J. Asai, E. T. Atomssa, R. Averbeck, T. C. Awes, B. Azmoun, V. Babintsev, M. Bai, G. Baksay, L. Baksay, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, A. T. Basye, S. Bathe, S. Batsouli, V. Baublis, C. Baumann, A. Bazilevsky, S. Belikov, R. Belmont, R. Bennett, A. Berdnikov, Y. Berdnikov, J. H. Bhom, A. A. Bickley, D. S. Blau, J. G. Boissevain, J. S. Bok, H. Borel, N. Borggren, K. Boyle, M. L. Brooks, H. Buesching, V. Bumazhnov, G. Bunce, S. Butsyk, C. M. Camacho, S. Campbell, A. Caringi, B. S. Chang, W. C. Chang, J.-L. Charvet, C.-H. Chen, S. Chernichenko, C. Y. Chi, M. Chiu, I. J. Choi, J. B. Choi, R. K. Choudhury, P. Christiansen, T. Chujo, P. Chung, A. Churyn, O. Chvala, V. Cianciolo, Z. Citron, B. A. Cole, Z. Conesa del Valle, M. Connors, P. Constantin, M. Csanád, T. Csörgő, T. Dahms, S. Dairaku, I. Danchev, K. Das, A. Datta, G. David, M. K. Dayananda, A. Denisov, D. d’Enterria, A. Deshpande, E. J. Desmond, K. V. Dharmawardane, O. Dietzsch, A. Dion, M. Donadelli, L. D’Orazio, O. Drapier, A. Drees, K. A. Drees, A. K. Dubey, J. M. Durham, A. Durum, D. Dutta, V. Dzhordzhadze, S. Edwards, Y. V. Efremenko, F. Ellinghaus, T. Engelmore, A. Enokizono, H. En’yo, S. Esumi, K. O. Eyser, B. Fadem, D. E. Fields, M. Finger, F. Fleuret, S. L. Fokin, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, T. Fusayasu, I. Garishvili, A. Glenn, H. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, G. Grim, M. Grosse Perdekamp, T. Gunji, H.-Å. Gustafsson, A. Hadj Henni, J. S. Haggerty, K. I. Hahn, H. Hamagaki, J. Hamblen, J. Hanks, R. Han, E. P. Hartouni, K. Haruna, E. Haslum, R. Hayano, M. Heffner, T. K. Hemmick, T. Hester, X. He, J. C. Hill, M. Hohlmann, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, D. Hornback, S. Huang, T. Ichihara, R. Ichimiya, H. Iinuma, Y. Ikeda, K. Imai, J. Imrek, M. Inaba, D. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, D. Ivanischev, Y. Iwanaga, B. V. Jacak, J. Jia, X. Jiang, J. Jin, B. M. Johnson, T. Jones, K. S. Joo, D. Jouan, D. S. Jumper, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, J. H. Kang, J. Kapustinsky, K. Karatsu, M. Kasai, D. Kawall, M. Kawashima, A. V. Kazantsev, T. Kempel, A. Khanzadeev, K. M. Kijima, J. Kikuchi, A. Kim, B. I. Kim, D. H. Kim, D. J. Kim, E. J. Kim, E. Kim, S. H. Kim, Y.-J. Kim, E. Kinney, K. Kiriluk, Á. Kiss, E. Kistenev, J. Klay, C. Klein-Boesing, L. Kochenda, B. Komkov, M. Konno, J. Koster, A. Kozlov, A. Král, A. Kravitz, G. J. Kunde, K. Kurita, M. Kurosawa, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, Y. S. Lai, J. G. Lajoie, D. Layton, A. Lebedev, D. M. Lee, J. Lee, K. B. Lee, K. S. Lee, T. Lee, M. J. Leitch, M. A. L. Leite, B. Lenzi, P. Lichtenwalner, P. Liebing, L. A. Linden Levy, T. Liška, A. Litvinenko, H. Liu, M. X. Liu, X. Li, B. Love, D. Lynch, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, E. Mannel, Y. Mao, L. Mašek, H. Masui, F. Matathias, M. McCumber, P. L. McGaughey, N. Means, B. Meredith, Y. Miake, T. Mibe, A. C. Mignerey, P. Mikeš, K. Miki, A. Milov, M. Mishra, J. T. Mitchell, A. K. Mohanty, H. J. Moon, Y. Morino, A. Morreale, D. P. Morrison, T. V. Moukhanova, D. Mukhopadhyay, T. Murakami, J. Murata, S. Nagamiya, J. L. Nagle, M. Naglis, M. I. Nagy, I. Nakagawa, Y. Nakamiya, K. R. Nakamura, T. Nakamura, K. Nakano, S. Nam, J. Newby, M. Nguyen, M. Nihashi, T. Niita, R. Nouicer, A. S. Nyanin, C. Oakley, E. O’Brien, S. X. Oda, C. A. Ogilvie, K. Okada, M. Oka, Y. Onuki, A. Oskarsson, M. Ouchida, K. Ozawa, R. Pak, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, I. H. Park, J. Park, S. K. Park, W. J. Park, S. F. Pate, H. Pei, J.-C. Peng, H. Pereira, V. Peresedov, D. Yu. Peressounko, R. Petti, C. Pinkenburg, R. P. Pisani, M. Proissl, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, S. Rembeczki, K. Reygers, V. Riabov, Y. Riabov, E. Richardson, D. Roach, G. Roche, S. D. Rolnick, M. Rosati, C. A. Rosen, S. S. E. Rosendahl, P. Rosnet, P. Rukoyatkin, P. Ružička, V. L. Rykov, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, K. Sakashita, V. Samsonov, S. Sano, T. Sato, S. Sawada, K. Sedgwick, J. Seele, R. Seidl, A. Yu. Semenov, V. Semenov, R. Seto, D. Sharma, I. Shein, T.-A. Shibata, K. Shigaki, M. Shimomura, K. Shoji, P. Shukla, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, B. K. Singh, C. P. Singh, V. Singh, M. Slunečka, 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, C. Suire, A. Sukhanov, J. Sziklai, E. M. Takagui, A. Taketani, R. Tanabe, Y. Tanaka, S. Taneja, K. Tanida, M. J. Tannenbaum, S. Tarafdar, A. Taranenko, P. Tarján, H. Themann, D. Thomas, T. L. Thomas, M. Togawa, A. Toia, L. Tomášek, Y. Tomita, H. Torii, R. S. Towell, V-N. Tram, I. Tserruya, Y. Tsuchimoto, C. Vale, H. Valle, H. W. van Hecke, E. Vazquez-Zambrano, A. Veicht, J. Velkovska, R. Vértesi, A. A. Vinogradov, M. Virius, V. Vrba, E. Vznuzdaev, X. R. Wang, D. Watanabe, K. Watanabe, Y. Watanabe, F. Wei, J. Wessels, S. N. White, D. Winter, C. L. Woody, R. M. Wright, M. Wysocki, W. Xie, Y. L. Yamaguchi, K. Yamaura, R. Yang, A. Yanovich, J. Ying, S. Yokkaichi, G. R. Young, I. Younus, Z. You, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, C. Zhang, S. Zhou, and L. Zolin
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Zero (complex analysis), Value (computer science), 01 natural sciences, Asymmetry, Nuclear physics, Transverse plane, Correlation function (statistical mechanics), 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, media_common, Spin-½
Abstract: We previously reported [Phys. Rev. D 82, 112008 (2010)] measurements of transverse single-spin asymmetries, A_N, in J/psi production from transversely polarized p+p collisions at sqrt(s)=200 GeV with data taken by the PHENIX experiment at the Relativistic Heavy Ion Collider in 2006 and 2008. Subsequently, we have found errors in the analysis procedures for the 2008 data, which resulted in an erroneous value for the extracted A_N. The errors affected the sorting of events into the correct left/right and forward/backward bins. This produced an incorrect value for the 2008 result, but the 2006 result is unaffected. We have conducted two independent reanalyses with these errors corrected, and we present here the corrected values for the 2008 data and the combined results for 2006 and 2008. The new combined spin asymmetry in the forward region is A_N = -0.026+/-0.026(stat)+/-0.003(sys). Since this asymmetry is consistent with zero, we no longer claim that our results suggest a possible non-zero trigluon correlation function in transversely polarized protons.
Published: 2012
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24. Evaluation of the Green’s function of disordered graphene

Author: Qinwei Shi, Jie Chen, Jianguo Hou, X. R. Wang, Xiaoping Wang, Jinlong Yang, and Wei Zhu
Subjects: Physics, Condensed matter physics, Graphene, Dirac point, 02 engineering and technology, Function (mathematics), Electron, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Electronic, Optical and Magnetic Materials, law.invention, symbols.namesake, law, Quantum mechanics, Green's function, 0103 physical sciences, symbols, Group velocity, Phase velocity, 010306 general physics, 0210 nano-technology
Abstract: Accurate simulations of Green's function and the self-energy function for noninteracting electrons in disordered graphenes are performed. The fundamental physical quantities such as the elastic relaxation time ${\ensuremath{\tau}}_{e}$, the phase velocity ${v}_{p}$, and the group velocity ${v}_{g}$ are evaluated. New features around the Dirac point are revealed, indicating that multiscattering-induced hybridization of Bloch states plays an important role in the vicinity of the Dirac point.
Published: 2010
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25. Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy-ion collisions

Author: L. H. Tarini, M. DePhillips, G. Eppley, I. Bnzarov, G. Van Buren, Michal Sumbera, Xu Cai, Hank Crawford, J. Pluta, S. S. Shi, T. S. McShane, J. Engelage, T. W. Ludlam, L. K. Mangotra, S. W. Wissink, A. Ridiger, J. M. Nelson, S. Baumgart, R. S. Longacre, Nikola Poljak, A. Geromitsos, Matthew Walker, J. H. Thomas, K. Kajimoto, Saskia Mioduszewski, Premomoy Ghosh, M. Zawisza, H. M. Spinka, D. Kettler, R. Manweiler, Hongfang Liu, Jongmin Lee, Yan Li, Jing-Han Chen, W. Peryt, R. E. Tribble, R. L. Ray, J. M. Landgraf, G. S. Averichev, S. Kabana, Y. P. Viyogi, T. J. Humanic, L. Kotchenda, Gerald W Hoffmann, Debasish Das, Raghunath Sahoo, B. Haag, C. A. Whitten, Feng Jin, M. Strikhanov, S. Heppelmann, A. Chikanian, J. L. Drachenberg, D. Staszak, Qian Yue, R. Varma, A. M. Poskanzer, V. N. Tram, J. Ulery, A. Lebedev, O. Catu, I. Sakrejda, M. Heinz, Lee Stuart Barnby, Yu A. Matulenko, B. S. Page, J. Konzer, G. Igo, L. Ruan, Anju Bhasin, H. Caines, Ki-Seok Choi, R. Corliss, R. Fatemi, Michael Joseph Betancourt, D. P. Kikola, B. Stringfellow, E. Hjort, Y. Fisyak, S. Bueltmann, Zebo Tang, J. Bouchet, S. Zhang, J. Sandweiss, Jana Bielcikova, B. E. Bonner, B. Erazmus, R. P. Redwine, K. Kauder, D. Arkhipkin, A. Hamed, Z. Chajecki, A. Feng, H. G. Ritter, Y. F. Wu, Christine Nattrass, T. Ljubicic, Subhasis Chattopadhyay, Andrew Rose, I. K. Yoo, J. X. Zuo, O. Barannikova, R. Bellwied, Y. Zhao, D. D. Koetke, L. G. Efimov, Y. Yang, K. Kang, S. J. Lindenbaum, X. R. Wang, K. Krueger, J. G. Cramer, V. Ghazikhanian, Jay Roberts, S. LaPointe, A. Kechechyan, Andre Mischke, M. Krus, N. Li, A. Kocoloski, Jaroslav Bielcik, J. A. Vanfossen, Neeraj Gupta, Haiyan Wang, D. Cebra, Russell Richard Betts, A. Iordanova, R. Cendejas, S. Dash, A. Bridgeman, A. Gordon, L. C. Bland, Z. J. Sun, Q. H. Xu, D. R. Gangadharan, E. G. Judd, S. Trentalange, J. L. Romero, S. M. Guertin, M. Estienne, Alexandre Alarcon Do Passo Suaide, C. Perkins, D. Thein, G. Wang, T. Peitzmann, M. Sharma, B. D. Anderson, R. N. Singaraju, L. Huo, A. P. Meschanin, P. Seyboth, E. J. Garcia-Solis, O. D. Tsai, Elena Bruna, Sudhir Raniwala, J. W. Harris, Z. Xu, G. Lin, Sergei A. Voloshin, N. G. Minaev, D. P. Mahapatra, R. S. Hollis, E. Finch, H. Bichsel, Anik Gupta, R. Derradi de Souza, B. I. Abelev, N. K. Pruthi, G. Odyniec, Y. Zoulkarneeva, M. Kopytine, P. Sorensen, X. H. Shi, M. R. Dutta Mazumdar, K. Yip, L. Liu, C. L. Jones, Bedangadas Mohanty, J. S. Wang, Jianping Cheng, M. Cherney, M. Elnimr, Basanta Kumar Nandi, J. E. Draper, M. J. Skoby, Frank Jm Geurts, J. C. Dunlop, M. C. Suarez, M. J. M. Codrington, H. Z. Huang, S. Vokal, Thomas Michael Cormier, E. Elhalhuli, Lokesh Kumar, Peter Graham Jones, P. Yepes, Yifu Sun, Zubayer Ahammed, I. Koralt, B. Biritz, Jifa Tian, V. A. Okorokov, M. C. Cervantes, A. H. Tang, O. V. Rogachevskiy, P. R. Pujahari, M. J. LeVine, T. D. S. Stanislaus, F. Videbæk, G. Webb, C. Roy, H. H. Wieman, Q. Wang, David Jonathan Hofman, T. P. Burton, M. J. Russcher, P. Chung, D. G. Underwood, E. P. Sichtermann, J. Kiryluk, Yannis K. Semertzidis, L. V. Nogach, M. J. Ng, M. Wada, J. Joseph, D. A. Morozov, Mikhail Tokarev, H. Masui, G. M.S. Vasconcelos, M. S. Daugherity, Jorn Henning Putschke, M. S. Ganti, J. Seele, Y. Pandit, A. V. Brandin, L. Didenko, J. Balewski, Rashmi Raniwala, R. Milner, H. Okada, W. Christie, V. I. Kravtsov, P. Chaloupka, N. Schmitz, P. Fachini, W. Xie, E. Shahaliev, Chitrasen Jena, Claude Andre Pruneau, H. F. Chen, Y. P. Lu, V. Perevoztchikov, F. Liu, X. Zhu, Ermes Braidot, G. Van Nieuwenhuizen, Peter Martin Jacobs, Xiang Sun, W. A. Love, Adam Ryszard Kisiel, Jing Zhou, Guo-Liang Ma, William Axel Leight, T. Ullrich, J. Takahashi, A. S. Hirsch, J. C. Webb, Mateusz Andrzej Ploskon, R. Witt, Marcelo Gameiro Munhoz, D. J. Prindle, P. Kravtsov, R. Zoulkarneev, P. Kurnadi, S. B. Nurushev, S. R. Klein, R. D. Majka, L. Eun, N. L. Subba, V. Yu Khodyrev, Donika Plyku, D. L. Olson, Subrata Pal, Donald M. McDonald, M. A. Lisa, Zhenyu Zhang, J. Sowinski, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, X. L. Wang, C. Zhong, B. K. Srivastava, M. R. Cosentino, Sevil Salur, Y. Wang, M. Shao, X. Dong, Madan M. Aggarwal, Fuqiang Wang, A. A. Derevschikov, W. M. Zhang, Andrey Vasiliev, T. J. Hallman, Y. Panebratsev, Janet Elizabeth Seger, T. J. M. Symons, A. M. Hoffman, F. Benedosso, Yong Xu, D. Grosnick, V. Kouchpil, K. S.F.F. Guimaraes, V. Dzhordzhadze, L. C. De Silva, Yi Zhang, W. L. Zhan, Rolf K. Reed, Frank Simon, T. G. Dedovich, T. Sakuma, S. C. Phatak, I. Selyuzhenkov, A. Szanto de Toledo, J. Kapitan, V. Fine, A. R. Timmins, S. M. Dogra, Bernd Surrow, T. Pawlak, A. K. Bhati, D. Keane, Nikolai Smirnov, Xiaoping Zhang, A. V. Alakhverdyants, C-H. Lee, T. K. Nayak, Pawan Kumar Netrakanti, B. Grube, W. Guryn, O. G. Grebenyuk, J. Fedorisin, C. A. Gagliardi, A. G. Knospe, M. Pachr, W. J. Llope, Jie Liu, Hanna Paulina Zbroszczyk, D. R. Beavis, M. Calderón De La Barca Sánchez, O. I. Mall, M. A.C. Lamont, B. V.K.S. Potukuchi, Yu-Gang Ma, N. Xu, P. Filip, C-Q. Li, S. Sakai, P. Pile, G. D. Westfall, R. P. Scharenberg, Christina Markert, Petr Jákl, H. S. Matis, W. W. Jacobs, J. Lauret, R. Lednicky, T. Tarnowsky, P. Djawotho, Sergey Timoshenko, Wolfgang Korsch, A. Ogawa, D. Tlusty, Mirko Planinic, Y. N. Gorbunov, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, dependence rapidity dependence transverse momentum, Star, Nuclear Theory, Vacuum, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], dependence 62, FOS: Physical sciences, Relativistic Nuclear Collisions, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], scattering gold copper quantum chromodynamics, 01 natural sciences, Nuclear Theory (nucl-th), Nuclear physics, angular correlation topological Monte Carlo STAR Brookhaven RHIC Coll impact parameter, 0103 physical sciences, 11.30.Er, 11.30.Qc, 25.75.Ld, 25.75.Nq, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, Physics, Quantum chromodynamics, Matter, 010308 nuclear & particles physics, Elliptic flow, Parity (physics), Observable, Fermion, Collaboration, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, parity, Elliptic Flow, violation heavy ion, Time Projection Chamber, Perspective, Quark–gluon plasma, 200 GeV-cms/nucleon, Quark-Gluon Plasma, (3particle) charged particle, Hot Qcd, vacuum state correlation function, STAR detector
Abstract: Parity-odd domains, corresponding to non-trivial topological solutions of the QCD vacuum, might be created during relativistic heavy-ion collisions. These domains are predicted to lead to charge separation of quarks along the orbital momentum of the system created in non-central collisions. To study this effect, we investigate a three particle mixed harmonics azimuthal correlator which is a \P-even observable, but directly sensitive to the charge separation effect. We report measurements of this observable using the STAR detector in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$=200 and 62~GeV. The results are presented as a function of collision centrality, particle separation in rapidity, and particle transverse momentum. A signal consistent with several of the theoretical expectations is detected in all four data sets. We compare our results to the predictions of existing event generators, and discuss in detail possible contributions from other effects that are not related to parity violation., Comment: 17 pages, 14 figures, as accepted for publication in Physical Review C.
Published: 2010
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26. High-pT π0production with respect to the reaction plane inAu+Aucollisions atsNN=200GeV

Author: Youngil Kwon, J. Egdemir, Taku Gunji, F. Kajihara, Tadaaki Isobe, J. S. Chai, S. P. Stoll, H. Delagrange, E. J. Desmond, K. Hasuko, S. S.E. Rosendahl, D. E. Fields, G. Bunce, K. Das, P. L. McGaughey, Hiroyuki Okada, E. P. Hartouni, B. V. Jacak, Y. S. Kim, Joakim Nystrand, M. Togawa, Eva Haslum, J. Park, Florian Bauer, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, L. Kochenda, A. K. Purwar, D. Jouan, T. Kawagishi, G. S. Kyle, A. V. Kazantsev, M. Chiu, T. A. Shibata, N. Willis, James Alexander, C. R. Cleven, R. Averbeck, Byung-Sik Hong, T. Ichihara, Matthew G. Reuter, N. Kamihara, S. Butsyk, Vladimir Samsonov, A. Bazilevsky, S. Afanasiev, F. Matathias, A. Ster, R. Armendariz, S. Takagi, Kazuyoshi Kurita, A. Drees, Philippe Rosnet, I. D. Ojha, D. Isenhower, Alexander Malakhov, P. J. Kroon, J. Newby, V-N. Tram, Alexandre Lebedev, V. S. Pantuev, L. Aphecetche, K. N. Barish, P. Tarján, T. L. Thomas, D. Silvermyr, M. Gonin, L. S. Zolin, Y. Tsuchimoto, S. Kelly, D. M. Lee, Yoichiro Fukao, N. N. Ajitanand, S. Kametani, W. J. Park, Kensuke Homma, M. Rosati, M. Heffner, Ryugo S. Hayano, Tamas Ferenc Csorgo, M. Harvey, T. C. Awes, Kyoichiro Ozawa, Junji Tojo, Motoi Inaba, S. Esumi, J. L. Nagle, Takahiro Nakamura, J. H. Kang, T. E. Miller, A. Taranenko, A. Enokizono, Jen-Chieh Peng, P. D. Barnes, A. Yanovich, N. Grau, K. Shoji, E. H. Kim, Y. Riabov, Kenta Shigaki, I. E. Yushmanov, Maya Hachiya Shimomura, Johannes Peter Wessels, J. S. Haggerty, A. Romana, W. A. Zajc, M. Wysocki, M. Holmes, T. Shohjoh, A. Durum, H. Pereira, S. Y. Fung, M. Nguyen, R. Vértesi, M. L. Brooks, A. S. Nyanin, K. Okada, K. S. Sim, Y. Watanabe, A. Hadj Henni, S. Chernichenko, H. Lim, V. Baublis, John Hill, P. W. Stankus, H. W. Van Hecke, A. Denisov, V. Cianciolo, J. E. Frantz, B. Bassalleck, A. A. Vinogradov, Henrik Tydesjö, D. S. Brown, Minghui Liu, Robert F. Hobbs, B. Sahlmueller, Y. I. Makdisi, Dong Jo Kim, V. Bumazhnov, M. P. Comets, K. Boyle, Sergey Fokin, Anders Nils Erik Oskarsson, H. En'yo, P. Constantin, M. Konno, H. A. Torii, Osamu Jinnouchi, Wei Xie, Marie Germain, Jiangyong Jia, Y. Goto, M. J. Leitch, Toru Sugitate, A. Kiss, Kenneth Francis Read, L. D. Isenhower, T. Horaguchi, Henner Buesching, Senta Greene, A. G. Litvinenko, J. L. Drachenberg, H. Hiejima, B. Komkov, Steven E. Skutnik, Hans-Åke Gustafsson, Martin Purschke, J. M. Burward-Hoy, Debashish Pal, J. Gosset, B. E. Norman, Norio Saito, J. P. Sullivan, S. Sawada, E. O'Brien, Alexander Milov, M. A. L. Leite, A. Franz, R. A. Soltz, A. Kozlov, F. Gastineau, Shingo Sakai, K. Imai, H. Qu, M. N. Hagiwara, Herve Borel, R. Seto, K. Haruna, W. C. Smith, S. Bathe, C. L. Woody, S. P. Sorensen, François Fleuret, M. Issah, O. Drapier, Hideki Hamagaki, K. Aoki, G. David, M. Grosse Perdekamp, M. J. Tannenbaum, B. Forestier, Y. Berdnikov, V. Babintsev, M. D. Malik, B. Espagnon, Y. Akiba, S. Yokkaichi, V. Dzhordzhadze, M. T. Bjorndal, A. Glenn, J. M. Heuser, S. Nagamiya, Kazuhiro Tanaka, E. Vznuzdaev, X. He, E. R. Kinney, Klaus Johannes Reygers, D. P. Morrison, O. O. Omiwade, M. K. Lee, Anne Marie Sickles, S. N. White, S. Campbell, S. F. Pate, O. Dietzsch, V. Peresedov, J. G. Boissevain, Masashi Kaneta, V. L. Rykov, T. Dahms, I. V. Sourikova, H. Valle, C. Zhang, V. E. Semenov, D. Winter, D. Yu Peressounko, Alexei Khanzadeev, Julia Velkovska, X. R. Wang, D. Mukhopadhyay, G. R. Young, J. Zimányi, C. Pinkenburg, J. T. Mitchell, H. Masui, A. K. Dubey, J. G. Lajoie, W. E. Sondheim, D. Kotchetkov, Tatsuya Chujo, T. Hachiya, O. Zaudtke, D. Bucher, P. A. Rukoyatkin, E. Stenlund, Vladislav Manko, I. Tserruya, M. Stepanov, G. Roche, Yu. Efremenko, Jan Rak, R. Lacey, Ingvar Otterlund, R. Granier de Cassagnac, J. Chiba, V. Papavassiliou, Sébastien Gadrat, V. Singh, I. J. Choi, Hiroaki Ohnishi, C. Vale, Viktor Riabov, Christine Angela Aidala, G. C. Mishra, Z. Fraenkel, Takao Sakaguchi, C. Klein-Boesing, Y. Cobigo, I. Ravinovich, A. D. Frawley, T. Tabaru, Y. Nagata, S. Batsouli, S. H. Aronson, W. Holzmann, S. S. Ryu, T. V. Moukhanova, R. Bennett, Hirohiko Sato, S. K. Tuli, Ahmed Al-Jamel, Xingguo Li, B. Azmoun, M. J. Kweon, M. C. McCain, A. P.T. Palounek, Y. Le Bornec, A. Dion, Atsushi Taketani, S. Belikov, K. S. Joo, H. Pei, D. Sharma, Mate Csanad, David D'Enterria, R. P. Pisani, Nikolay Tyurin, M. N. Wagner, Saskia Mioduszewski, J. Jin, E. M. Takagui, C. P. Singh, B. M. Johnson, A. Isupov, C. Suire, J. Sziklai, Brian Cole, Charles Maguire, S. Leckey, R. S. Towell, Josh Moss, Akio Kiyomichi, E. Kistenev, H. Harada, N. Kurihara, M. G. Hur, C. Y. Chi, Y. Tanaka, T. K. Shea, M. Naglis, C. L. Silva, Masayasu Ishihara, F. Staley, Susumu Sato, A. Deshpande, I. Younus, A. Soldatov, K. Tanida, V. I. Kochetkov, J. Murata, Gerd Joachim Kunde, I. Shein, and Alberto Baldisseri
Subjects: Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, Plane (geometry), Elliptic flow, Parton, 01 natural sciences, Azimuth, Nuclear physics, Pion, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Jet quenching
Abstract: Measurements of the azimuthal anisotropy of high-p(T) neutral pion (pi(0)) production in Au+Au collisions at s(NN)=200 GeV by the PHENIX experiment are presented. The data included in this article were collected during the 2004 Relativistic Heavy Ion Collider running period and represent approximately an order of magnitude increase in the number of analyzed events relative to previously published results. Azimuthal angle distributions of pi(0) mesons detected in the PHENIX electromagnetic calorimeters are measured relative to the reaction plane determined event-by-event using the forward and backward beam-beam counters. Amplitudes of the second Fourier component (v(2)) of the angular distributions are presented as a function of pi(0) transverse momentum (p(T)) for different bins in collision centrality. Measured reaction plane dependent pi(0) yields are used to determine the azimuthal dependence of the pi(0) suppression as a function of p(T), R-AA(Delta phi,p(T)). A jet-quenching motivated geometric analysis is presented that attempts to simultaneously describe the centrality dependence and reaction plane angle dependence of the pi(0) suppression in terms of the path lengths of hypothetical parent partons in the medium. This set of results allows for a detailed examination of the influence of geometry in the collision region and of the interplay between collective flow and jet-quenching effects along the azimuthal axis.
Published: 2009
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27. Charged Kaon Interferometric Probes of Space-Time Evolution inAu+AuCollisions atsNN=200 GeV

Author: S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, A. Al-Jamel, K. Aoki, L. Aphecetche, R. Armendariz, S. H. Aronson, R. Averbeck, T. C. Awes, B. Azmoun, V. Babintsev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, F. Bauer, A. Bazilevsky, S. Belikov, R. Bennett, Y. Berdnikov, M. T. Bjorndal, J. G. Boissevain, H. Borel, K. Boyle, M. L. Brooks, D. S. Brown, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, S. Campbell, J.-S. Chai, S. Chernichenko, J. Chiba, C. Y. Chi, M. Chiu, I. J. Choi, T. Chujo, V. Cianciolo, C. R. Cleven, Y. Cobigo, B. A. Cole, M. P. Comets, P. Constantin, M. Csanád, T. Csörgő, T. Dahms, K. Das, G. David, H. Delagrange, A. Denisov, D. d’Enterria, A. Deshpande, E. J. Desmond, O. Dietzsch, A. Dion, J. L. Drachenberg, O. Drapier, A. Drees, A. K. Dubey, A. Durum, V. Dzhordzhadze, Y. V. Efremenko, J. Egdemir, A. Enokizono, H. En’yo, B. Espagnon, S. Esumi, D. E. Fields, F. Fleuret, S. L. Fokin, B. Forestier, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukao, S.-Y. Fung, S. Gadrat, F. Gastineau, M. Germain, A. Glenn, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H.-Å. Gustafsson, T. Hachiya, A. Hadj Henni, J. S. Haggerty, M. N. Hagiwara, H. Hamagaki, H. Harada, E. P. Hartouni, K. Haruna, M. Harvey, E. Haslum, K. Hasuko, R. Hayano, M. Heffner, T. K. Hemmick, J. M. Heuser, X. He, H. Hiejima, J. C. Hill, R. Hobbs, M. Holmes, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, M. G. Hur, T. Ichihara, K. Imai, M. Inaba, D. Isenhower, L. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, B. V. Jacak, J. Jia, J. Jin, O. Jinnouchi, B. M. Johnson, K. S. Joo, D. Jouan, F. Kajihara, S. Kametani, N. Kamihara, M. Kaneta, J. H. Kang, T. Kawagishi, A. V. Kazantsev, S. Kelly, A. Khanzadeev, D. J. Kim, E. Kim, Y.-S. Kim, E. Kinney, Á. Kiss, E. Kistenev, A. Kiyomichi, C. Klein-Boesing, L. Kochenda, V. Kochetkov, B. Komkov, M. Konno, D. Kotchetkov, A. Kozlov, P. J. Kroon, G. J. Kunde, N. Kurihara, K. Kurita, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, J. G. Lajoie, A. Lebedev, Y. Le Bornec, S. Leckey, D. M. Lee, M. K. Lee, M. J. Leitch, M. A. L. Leite, H. Lim, A. Litvinenko, M. X. Liu, X. H. Li, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, H. Masui, F. Matathias, M. C. McCain, P. L. McGaughey, Y. Miake, T. E. Miller, A. Milov, S. Mioduszewski, G. C. Mishra, J. T. Mitchell, D. P. Morrison, J. M. Moss, T. V. Moukhanova, D. Mukhopadhyay, J. Murata, S. Nagamiya, Y. Nagata, J. L. Nagle, M. Naglis, T. Nakamura, J. Newby, M. Nguyen, B. E. Norman, R. Nouicer, A. S. Nyanin, J. Nystrand, E. O’Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, H. Okada, K. Okada, O. O. Omiwade, A. Oskarsson, I. Otterlund, K. Ozawa, D. Pal, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, W. J. Park, S. F. Pate, H. Pei, J.-C. Peng, H. Pereira, V. Peresedov, D. Yu. Peressounko, C. Pinkenburg, R. P. Pisani, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, S. S. E. Rosendahl, P. Rosnet, P. Rukoyatkin, V. L. Rykov, S. S. Ryu, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, V. Samsonov, H. D. Sato, S. Sato, S. Sawada, V. Semenov, R. Seto, D. Sharma, T. K. Shea, I. Shein, T.-A. Shibata, K. Shigaki, M. Shimomura, T. Shohjoh, K. Shoji, A. Sickles, C. L. Silva, D. Silvermyr, K. S. Sim, C. P. Singh, V. Singh, S. Skutnik, W. C. Smith, 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, C. Suire, J. P. Sullivan, J. Sziklai, T. Tabaru, S. Takagi, E. M. Takagui, A. Taketani, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, A. Taranenko, P. Tarján, T. L. Thomas, M. Togawa, J. Tojo, H. Torii, R. S. Towell, V-N. Tram, I. Tserruya, Y. Tsuchimoto, S. K. Tuli, H. Tydesjö, N. Tyurin, C. Vale, H. Valle, H. W. van Hecke, J. Velkovska, R. Vértesi, A. A. Vinogradov, E. Vznuzdaev, M. Wagner, X. R. Wang, Y. Watanabe, J. Wessels, S. N. White, N. Willis, D. Winter, C. L. Woody, M. Wysocki, W. Xie, A. Yanovich, S. Yokkaichi, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, C. Zhang, J. Zimányi, and L. Zolin
Subjects: Source function, Physics, Linear function (calculus), 010308 nuclear & particles physics, Space time, Gaussian, Hadron, General Physics and Astronomy, Radius, 01 natural sciences, Nuclear physics, symbols.namesake, Pion, Non-Gaussianity, 0103 physical sciences, symbols, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at sqrt(s_NN) = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if N_part^1/3 with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at r >~ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
Published: 2009
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28. Azimuthal charged-particle correlations and possible local strong parity violation

Author: B. Erazmus, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, Marcelo Gameiro Munhoz, D. J. Prindle, H. Bichsel, Y. Zoulkarneeva, Donika Plyku, Q. Wang, M. J. Russcher, M. A. Lisa, Jing Zhou, L. Kotchenda, A. Ridiger, T. Sakuma, S. Heppelmann, K. Yip, J. S. Wang, D. D. Koetke, Guo-Liang Ma, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, Yannis K. Semertzidis, P. Filip, Sergei A. Voloshin, E. Shahaliev, G. Lin, G. Wang, P. Seyboth, E. J. Garcia-Solis, D. P. Mahapatra, J. C. Webb, R. S. Hollis, S. Sakai, Jorn Henning Putschke, A. V. Brandin, P. Pile, Anik Gupta, P. Kravtsov, H. Okada, S. Vokal, G. Eppley, R. Derradi de Souza, B. I. Abelev, Petr Jákl, J. E. Draper, M. J. Skoby, Frank Jm Geurts, D. G. Underwood, J. Pluta, E. Elhalhuli, G. Van Buren, S. S. Shi, Jifa Tian, Jianping Cheng, D. Thein, J. Sowinski, Christine Nattrass, K. Kang, C-Q. Li, M. J. M. Codrington, B. E. Bonner, O. D. Tsai, S. Bueltmann, T. W. Ludlam, J. M. Nelson, Yan Li, J. Kiryluk, N. Schmitz, W. J. Llope, B. Grube, P. Chung, R. E. Tribble, E. G. Judd, M. Kopytine, I. Sakrejda, M. Sharma, J. G. Cramer, M. Elnimr, M. C. Cervantes, J. Sandweiss, Subhasis Chattopadhyay, R. P. Scharenberg, H. S. Matis, H. M. Spinka, B. Haag, Jing-Han Chen, W. Peryt, W. Guryn, Elena Bruna, J. Joseph, Gerald W Hoffmann, G. M.S. Vasconcelos, J. X. Zuo, D. A. Morozov, Xiang Sun, Z. J. Sun, Y. Pandit, Zebo Tang, J. Engelage, P. R. Pujahari, Xuan Zhang, Jie Liu, R. Lednicky, O. G. Grebenyuk, T. D. S. Stanislaus, P. Djawotho, L. G. Efimov, L. H. Tarini, F. Videbæk, V. Ghazikhanian, Z. Chajecki, C. A. Whitten, Feng Jin, Hanna Paulina Zbroszczyk, T. P. Burton, Sevil Salur, Y. Wang, G. Webb, A. Geromitsos, H. H. Wieman, Y. Yang, J. Fedorisin, D. R. Beavis, Premomoy Ghosh, F. Liu, A. Bridgeman, T. S. McShane, Haiyan Wang, T. Ullrich, R. Corliss, Zhongbin Xu, Y. Panebratsev, D. Grosnick, A. G. Knospe, L. K. Mangotra, V. Kouchpil, I. K. Yoo, Jana Bielcikova, L. V. Nogach, Y. Fisyak, M. S. Ganti, C. Perkins, X. Z. Cai, S. J. Lindenbaum, A. Ogawa, S. Baumgart, S. LaPointe, N. Li, D. Tlusty, A. Gordon, R. Manweiler, Mirko Planinic, T. Peitzmann, Yi Zhang, J. Konzer, B. D. Anderson, E. Finch, O. I. Mall, W. Christie, Matthew Walker, Rolf K. Reed, Chitrasen Jena, H. Caines, A. Szanto de Toledo, J. Kapitan, Ki-Seok Choi, N. K. Pruthi, A. R. Timmins, D. R. Gangadharan, S. M. Dogra, David Jonathan Hofman, William Jacobs, Y. N. Gorbunov, Christina Markert, Y. P. Lu, V. Perevoztchikov, E. Hjort, Y. F. Wu, H. Masui, Y. J. Sun, B. V.K.S. Potukuchi, Yinina Ma, A. Hirsch, M. Calderón De La BarcaSánchez, A. Kechechyan, Andre Mischke, T. Pawlak, I. Bnzarov, Thomas Humanic, J. M. Landgraf, Peter Martin Jacobs, Bedangadas Mohanty, S. Kabana, J. Takahashi, A. K. Bhati, D. Keane, A. V. Alakhverdyants, M. Krus, R. Cendejas, Nikolai Smirnov, Sergey Timoshenko, J. Lauret, X. R. Wang, Y. P. Viyogi, B. Srivastava, P. Fachini, C-H. Lee, T. K. Nayak, Russell Richard Betts, K. S.F.F. Guimaraes, Wolfgang Korsch, B. Stringfellow, Jongmin Lee, Lijuan Ruan, V. Dzhordzhadze, R. L. Ray, M. Wada, Gary Westfall, Xiaofeng Zhu, Qian Yue, M. DePhillips, J. W. Harris, S. B. Nurushev, M. Shao, Michal Sumbera, Hank Crawford, R. Varma, D. Staszak, T. J. Hallman, T. Ljubicic, T. J. M. Symons, Yu A. Matulenko, B. S. Page, P. Sorensen, X. H. Shi, S. W. Wissink, D. P. Kikola, L. C. De Silva, P. Yepes, Peter Graham Jones, Sudhir Raniwala, K. Kajimoto, Nikola Poljak, Saskia Mioduszewski, A. Lebedev, O. Catu, J. Schambach, S. Dash, N. G. Minaev, Anju Bhasin, L. Didenko, R. P. Redwine, X. L. Wang, J. Seele, C. Zhong, S. Q. Zhang, R. S. Longacre, X. Dong, Ross Milner, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Hengchang Liu, M. Zawisza, R. D. Majka, William Axel Leight, R. Zoulkarneev, A. M. Poskanzer, R. F. Clarke, L. Eun, W. M. Zhang, Andrey Vasiliev, Nu Xu, A. M. Hoffman, S. R. Klein, N. L. Subba, D. L. Olson, J. H. Thomas, A. A. Derevschikov, D. Kettler, G. S. Averichev, R. Fatemi, Michael Joseph Betancourt, H. G. Ritter, K. Krueger, J. L. Drachenberg, J. A. Vanfossen, M. Strikhanov, J. L. Romero, A. Feng, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, Jay Roberts, A. H. Tang, Mikhail Tokarev, Ermes Braidot, J. C. Dunlop, Madan M. Aggarwal, Adam Ryszard Kisiel, Fuqiang Wang, Zubayer Ahammed, M. J. LeVine, Yong Xu, W. L. Zhan, Frank Simon, Mateusz Andrzej Ploskon, R. Witt, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, V. Yu Khodyrev, Subrata Pal, Donald M. McDonald, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. Xie, W. A. Love, I. Selyuzhenkov, Bernd Surrow, Pawan Kumar Netrakanti, G. Odyniec, C. A. Gagliardi, M. Pachr, Q. H. Xu, R. N. Singaraju, L. Huo, A. P. Meschanin, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, G. Igo, J. Bouchet, K. Kauder, Andrew Rose, Y. Zhao, Basanta Kumar Nandi, T. Tarnowsky, B. Biritz, V. A. Okorokov, A. Chikanian, V. N. Tram, V. Fine, Jake Y. Chen, D. Arkhipkin, A. Hamed, I. Koralt, M. J. Ng, V. I. Kravtsov, G. Van Nieuwenhuizen, P. Kurnadi, A. Iordanova, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, C. Roy, T. G. Dedovich, S. C. Phatak, P. Chaloupka, S. Margetis, H. F. Chen, J. Seger, M. S. Daugherity, L. C. Bland, L. Liu, C. L. Jones, M. C. Suarez, A. Kocoloski, J. Ulery, H. Z. Huang, O. Barannikova, and R. Bellwied
Subjects: Quark, Particle physics, QCD vacuum, Hadron, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Nuclear physics, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Nuclear Collisions, parity violation, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Heavy-Ion Collisions, Observable, Fermion, NATURAL SCIENCES. Physics, Charged particle, PRIRODNE ZNANOSTI. Fizika, Hot Qcd, High Energy Physics::Experiment, charged hadrons, STAR detector
Abstract: Parity-odd domains, corresponding to non-trivial topological solutions of the QCD vacuum, might be created during relativistic heavy ion collisions. These domains are predicted to lead to charge separation of quarks along the system's orbital momentum axis. We investigate a three particle azimuthal correlator which is a \P even observable, but directly sensitive to the charge separation effect. We report measurements of charged hadrons near center-of-mass rapidity with this observable in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$=200 GeV using the STAR detector. A signal consistent with several expectations from the theory is detected. We discuss possible contributions from other effects that are not related to parity violation., Comment: version as published in Physical Review Letters. Figure 3 from earlier versions has been removed to add room for new Figure 1
Published: 2009
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29. Systematic studies of elliptic flow measurements inAu+Aucollisions atsNN=200GeV

Author: S. Bathe, Maya Hachiya Shimomura, H. Pei, Y. Berdnikov, Y. I. Makdisi, T. L. Thomas, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Ryugo S. Hayano, Klaus Johannes Reygers, M. J. Tannenbaum, J. Egdemir, Y. Riabov, Kenta Shigaki, J. T. Mitchell, M. Nguyen, S. Afanasiev, A. Ster, D. Mukhopadhyay, A. S. Nyanin, Rachid Nouicer, E. J. Desmond, S. P. Stoll, S. Esumi, J. Newby, G. Roche, D. Bucher, Minghui Liu, W. A. Zajc, P. Tarján, Sean A. Kelly, V. Baublis, A. Denisov, M. Togawa, V. Cianciolo, S. Batsouli, Vladislav Manko, M. C. McCain, A. P.T. Palounek, Sergey Fokin, Kenneth Francis Read, J. Park, Florian Bauer, T. Horaguchi, J. Chiba, Alice Mignerey, S. S.E. Rosendahl, G. Bunce, O. Zaudtke, H. Masui, Charles Maguire, S. Leckey, G. C. Mishra, C. L. Woody, A. V. Kazantsev, Hiroaki Ohnishi, Y. Tsuchimoto, C. Zhang, A. Lebedev, X. He, M. Heffner, P. Rosnet, Takao Sakaguchi, M. Wagner, C. Klein-Boesing, Viktor Riabov, I. E. Yushmanov, Steven E. Skutnik, Alexei Khanzadeev, Mate Csanad, D. Jouan, Y. Cobigo, A. Taranenko, Josh Moss, S. Belikov, K. S. Joo, Senta Greene, A. D. Frawley, T. Tabaru, S. H. Aronson, M. Chiu, T. A. Shibata, E. Kistenev, S. Kametani, V. S. Pantuev, I. V. Sourikova, H. Okada, C. Vale, Yoichiro Fukao, H. W. Van Hecke, R. Pak, S. Takagi, K. Das, H. Qu, W. Holzmann, C. P. Singh, T. C. Awes, B. E. Norman, D. E. Fields, N. Kamihara, M. Harvey, B. M. Johnson, Junji Tojo, I. Ravinovich, H. Harada, Christine Angela Aidala, J. S. Haggerty, A. Kiss, Y. Nagata, Kyoichiro Ozawa, A. Hadj Henni, E. O'Brien, B. V. Jacak, E. H. Kim, Hideki Hamagaki, K. Aoki, G. David, F. Matathias, R. Armendariz, Henner Buesching, E. P. Hartouni, D. Isenhower, K. Okada, K. N. Barish, A. Isupov, D. Sharma, S. S. Ryu, R. A. Soltz, Kazuyoshi Kurita, A. Romana, B. Sahlmueller, S. Gadrat, T. V. Moukhanova, K. Hasuko, David D'Enterria, A. Drees, A. K. Purwar, H. En'yo, P. Constantin, J. Sziklai, M. J. Leitch, M. Wysocki, Tadaaki Isobe, R. Bennett, B. Azmoun, M. J. Kweon, Ahmed Al-Jamel, S. Sakai, M. Grosse Perdekamp, R. Vértesi, V. N. Tram, Evert Stenlund, K. Boyle, C. R. Cleven, J. S. Chai, J. M. Burward-Hoy, J. E. Frantz, R. S. Towell, Xingguo Li, Y. Le Bornec, Y. Tanaka, Akio Kiyomichi, R. P. Pisani, Joakim Nystrand, Taku Gunji, Y. J. Kwon, P. L. McGaughey, Herve Borel, Eva Haslum, W. C. Smith, F. Kajihara, T. K. Shea, M. Gonin, P. J. Kroon, Kensuke Homma, A. Glenn, S. Sorensen, S. F. Pate, C. A. Ogilvie, T. K. Hemmick, N. N. Ajitanand, V. L. Rykov, T. Dahms, N. Kurihara, H. Delagrange, M. K. Lee, Nikolay Tyurin, A. Dion, W. Xie, S. Chernichenko, Atsushi Taketani, Yasuo Miake, H. Lim, F. Staley, H. Pereira, B. Bassalleck, O. Dietzsch, Takahiro Nakamura, M. L. Brooks, N. Grau, Martin Purschke, L. Kochenda, J. G. Boissevain, K. Shoji, M. G. Hur, C. Y. Chi, M. Konno, F. Gastineau, B. Komkov, T. Shohjoh, D. Winter, D. Yu Peressounko, V. Papavassiliou, O. O. Omiwade, Robert F. Hobbs, Y. S. Kim, T. Kawagishi, Masashi Kaneta, A. Durum, M. Issah, P. W. Stankus, D. Kotchetkov, H. Valle, J. L. Drachenberg, Hans-Åke Gustafsson, D. S. Brown, Norio Saito, V. Peresedov, M. D. Malik, E. Vznuzdaev, Z. Fraenkel, T. E. Miller, Debashish Pal, S. Sawada, A. Enokizono, Saskia Mioduszewski, M. A. L. Leite, X. R. Wang, B. Forestier, M. T. Bjorndal, A. Franz, Julia Velkovska, M. Holmes, M. Rosati, C. Pinkenburg, L. Aphecetche, J. H. Kang, J. Jin, J. G. Lajoie, T. Hachiya, E. M. Takagui, Johannes Peter Wessels, V. Babintsev, Ingvar Otterlund, I. J. Choi, G. S. Kyle, Bruno Espagnon, A. K. Dubey, A. A. Vinogradov, Henrik Tydesjö, N. Willis, James Alexander, M. Stepanov, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Motoi Inaba, Anders Oskarsson, D. M. Lee, Jiangyong Jia, Y. Goto, J. Gosset, J. P. Sullivan, Marie Germain, A. G. Litvinenko, S. Yokkaichi, J. M. Heuser, A. Kozlov, R. Seto, K. Haruna, B. A. Cole, V. Dzhordzhadze, V. Bumazhnov, M. P. Comets, M. N. Hagiwara, S. Butsyk, Vladimir Samsonov, Tamas Ferenc Csorgo, J. L. Nagle, I. Tserruya, Yu. Efremenko, V. Singh, Hirohiko Sato, S. K. Tuli, Christophe Pierre Suire, Alexander Milov, O. Drapier, E. R. Kinney, D. P. Morrison, S. Campbell, V. E. Semenov, J. Zimányi, Tatsuya Chujo, M. Naglis, Jen-Chieh Peng, C. L. Silva, Dong Jo Kim, Osamu Jinnouchi, Masayasu Ishihara, Susumu Sato, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, K. Tanida, V. I. Kochetkov, D. Silvermyr, J. Murata, Gerd Joachim Kunde, I. Shein, Alberto Baldisseri, Anne Marie Sickles, G. R. Young, K. S. Sim, H. Hiejima, K. Imai, Jan Rak, R. Lacey, R. Granier de Cassagnac, S. N. White, W. E. Sondheim, P. A. Rukoyatkin, S. Y. Fung, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, François Fleuret, T. Ichihara, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, and A. Yanovich
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Elliptic flow, Hadron, 01 natural sciences, Charged particle, Color-glass condensate, Nuclear physics, Pseudorapidity, 0103 physical sciences, Quark–gluon plasma, Transverse momentum, Anisotropic flow, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We present inclusive charged hadron elliptic flow (v(2)) measured over the pseudorapidity range vertical bar eta vertical bar 6.5) pseudorapidities and (2) the two-particle cumulant method extracted using correlations between particles detected at midrapidity. The two event-plane results are consistent within systematic uncertainties over the measured p(T) and in centrality 0-40%. There is at most a 20% difference in the v(2) between the two event-plane methods in peripheral (40-60%) collisions. The comparisons between the two-particle cumulant results and the standard event-plane measurements are discussed.
Published: 2009
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30. Photon-hadron jet correlations inp+pandAu+Aucollisions atsNN=200GeV

Author: A. Adare, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander, A. Al-Jamel, K. Aoki, L. Aphecetche, R. Armendariz, S. H. Aronson, J. Asai, E. T. Atomssa, R. Averbeck, T. C. Awes, B. Azmoun, V. Babintsev, M. Bai, G. Baksay, L. Baksay, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, A. T. Basye, S. Bathe, S. Batsouli, V. Baublis, F. Bauer, C. Baumann, A. Bazilevsky, S. Belikov, R. Bennett, A. Berdnikov, Y. Berdnikov, A. A. Bickley, M. T. Bjorndal, J. G. Boissevain, H. Borel, K. Boyle, M. L. Brooks, D. S. Brown, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, C. M. Camacho, S. Campbell, J.-S. Chai, B. S. Chang, W. C. Chang, J.-L. Charvet, C.-H. Chen, S. Chernichenko, J. Chiba, C. Y. Chi, M. Chiu, I. J. Choi, R. K. Choudhury, T. Chujo, P. Chung, A. Churyn, V. Cianciolo, Z. Citron, C. R. Cleven, Y. Cobigo, B. A. Cole, M. P. Comets, M. Connors, P. Constantin, M. Csanád, T. Csörgő, T. Dahms, S. Dairaku, K. Das, G. David, M. B. Deaton, K. Dehmelt, H. Delagrange, A. Denisov, D. d'Enterria, A. Deshpande, E. J. Desmond, O. Dietzsch, A. Dion, M. Donadelli, J. L. Drachenberg, O. Drapier, A. Drees, K. A. Drees, A. K. Dubey, A. Durum, D. Dutta, V. Dzhordzhadze, Y. V. Efremenko, J. Egdemir, F. Ellinghaus, W. S. Emam, T. Engelmore, A. Enokizono, H. En'yo, B. Espagnon, S. Esumi, K. O. Eyser, B. Fadem, D. E. Fields, M. Finger, F. Fleuret, S. L. Fokin, B. Forestier, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, S.-Y. Fung, T. Fusayasu, S. Gadrat, I. Garishvili, F. Gastineau, M. Germain, A. Glenn, H. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H.-Å. Gustafsson, T. Hachiya, A. Hadj Henni, C. Haegemann, J. S. Haggerty, M. N. Hagiwara, H. Hamagaki, R. Han, H. Harada, E. P. Hartouni, K. Haruna, M. Harvey, E. Haslum, K. Hasuko, R. Hayano, M. Heffner, T. K. Hemmick, T. Hester, J. M. Heuser, X. He, H. Hiejima, J. C. Hill, R. Hobbs, M. Hohlmann, M. Holmes, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, D. Hornback, S. Huang, M. G. Hur, T. Ichihara, R. Ichimiya, Y. Ikeda, K. Imai, J. Imrek, M. Inaba, Y. Inoue, D. Isenhower, L. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, D. Ivanischev, B. V. Jacak, J. Jia, J. Jin, O. Jinnouchi, B. M. Johnson, K. S. Joo, D. Jouan, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, M. Kaneta, J. H. Kang, H. Kanou, J. Kapustinsky, T. Kawagishi, D. Kawall, A. V. Kazantsev, S. Kelly, T. Kempel, A. Khanzadeev, K. M. Kijima, J. Kikuchi, B. I. Kim, D. H. Kim, D. J. Kim, E. Kim, S. H. Kim, Y.-S. Kim, E. Kinney, K. Kiriluk, A. Kiss, E. Kistenev, A. Kiyomichi, J. Klay, C. Klein-Boesing, L. Kochenda, V. Kochetkov, B. Komkov, M. Konno, J. Koster, D. Kotchetkov, A. Kozlov, A. Král, A. Kravitz, P. J. Kroon, J. Kubart, G. J. Kunde, N. Kurihara, K. Kurita, M. Kurosawa, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, Y.-S. Lai, Y. S. Lai, J. G. Lajoie, D. Layton, A. Lebedev, Y. Le Bornec, S. Leckey, D. M. Lee, K. B. Lee, M. K. Lee, T. Lee, M. J. Leitch, M. A. L. Leite, B. Lenzi, P. Liebing, H. Lim, T. Liška, A. Litvinenko, H. Liu, M. X. Liu, X. Li, X. H. Li, B. Love, D. Lynch, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, E. Mannel, Y. Mao, L. Mašek, H. Masui, F. Matathias, M. C. McCain, M. McCumber, P. L. McGaughey, N. Means, B. Meredith, Y. Miake, P. Mikeš, K. Miki, T. E. Miller, A. Milov, S. Mioduszewski, G. C. Mishra, M. Mishra, J. T. Mitchell, M. Mitrovski, A. K. Mohanty, Y. Morino, A. Morreale, D. P. Morrison, J. M. Moss, T. V. Moukhanova, D. Mukhopadhyay, J. Murata, S. Nagamiya, Y. Nagata, J. L. Nagle, M. Naglis, M. I. Nagy, I. Nakagawa, Y. Nakamiya, T. Nakamura, K. Nakano, J. Newby, M. Nguyen, T. Niita, B. E. Norman, R. Nouicer, A. S. Nyanin, J. Nystrand, E. O'Brien, S. X. Oda, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, H. Okada, K. Okada, M. Oka, O. O. Omiwade, Y. Onuki, A. Oskarsson, I. Otterlund, M. Ouchida, K. Ozawa, R. Pak, D. Pal, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, W. J. Park, S. F. Pate, H. Pei, J.-C. Peng, H. Pereira, V. Peresedov, D. Yu. Peressounko, C. Pinkenburg, R. P. Pisani, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, S. Rembeczki, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, D. Roach, G. Roche, S. D. Rolnick, A. Romana, M. Rosati, S. S. E. Rosendahl, P. Rosnet, P. Rukoyatkin, P. Ružička, V. L. Rykov, S. S. Ryu, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, K. Sakashita, H. Sakata, V. Samsonov, H. D. Sato, S. Sato, T. Sato, S. Sawada, K. Sedgwick, J. Seele, R. Seidl, A. Yu. Semenov, V. Semenov, R. Seto, D. Sharma, T. K. Shea, I. Shein, A. Shevel, T.-A. Shibata, K. Shigaki, M. Shimomura, T. Shohjoh, K. Shoji, P. Shukla, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, B. K. Singh, C. P. Singh, V. Singh, S. Skutnik, M. Slunečka, W. C. Smith, 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, C. Suire, A. Sukhanov, J. P. Sullivan, J. Sziklai, T. Tabaru, S. Takagi, E. M. Takagui, A. Taketani, R. Tanabe, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, A. Taranenko, P. Tarján, H. Themann, T. L. Thomas, M. Togawa, A. Toia, J. Tojo, L. Tomášek, Y. Tomita, H. Torii, R. S. Towell, V.-N. Tram, I. Tserruya, Y. Tsuchimoto, S. K. Tuli, H. Tydesjö, N. Tyurin, C. Vale, H. Valle, H. W. van Hecke, A. Veicht, J. Velkovska, R. Vertesi, A. A. Vinogradov, M. Virius, V. Vrba, E. Vznuzdaev, M. Wagner, D. Walker, X. R. Wang, Y. Watanabe, F. Wei, J. Wessels, S. N. White, N. Willis, D. Winter, C. L. Woody, M. Wysocki, W. Xie, Y. L. Yamaguchi, K. Yamaura, R. Yang, A. Yanovich, Z. Yasin, J. Ying, S. Yokkaichi, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, C. Zhang, S. Zhou, J. Zimányi, and L. Zolin
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, Parton, Jet (particle physics), 01 natural sciences, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Radioactive decay
Abstract: We report the observation at the Relativistic Heavy Ion Collider of suppression of back-to-back correlations in the direct photon+jet channel in Au+Au relative to p+p collisions. Two-particle correlations of direct photon triggers with associated hadrons are obtained by statistical subtraction of the decay photon-hadron (gamma-h) background. The initial momentum of the away-side parton is tightly constrained, because the parton-photon pair exactly balance in momentum at leading order in perturbative quantum chromodynamics, making such correlations a powerful probe of the in-medium parton energy loss. The away-side nuclear suppression factor, I-AA, in central Au+Au collisions, is 0.32 +/- 0.12(stat)+/- 0.09(syst) for hadrons of 3 < p(T)(h)< 5 in coincidence with photons of 5 < p(T)(gamma)< 15 GeV/c. The suppression is comparable to that observed for high-p(T) single hadrons and dihadrons. The direct photon associated yields in p+p collisions scale approximately with the momentum balance, z(T)equivalent to p(T)(h)/p(T)(gamma), as expected for a measurement of the away-side parton fragmentation function. We compare to Au+Au collisions for which the momentum balance dependence of the nuclear modification should be sensitive to the path-length dependence of parton energy loss.
Published: 2009
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31. Gluon-Spin Contribution to the Proton Spin from the Double-Helicity Asymmetry in Inclusiveπ0Production in Polarizedp+pCollisions ats=200 GeV

Author: Yu. Efremenko, Tadaaki Isobe, H. Pei, V. Singh, K. S. Sim, V. Dzhordzhadze, P. Tarján, P. L. McGaughey, Y. Watanabe, M. Chiu, A. Yu. Semenov, J. Gosset, R. Yang, S. Afanasiev, A. Ster, M. Gonin, S. Taneja, B. Azmoun, A. Král, M. J. Kweon, F. Matathias, J. Newby, G. Roche, L. Aphecetche, T. L. Thomas, Kensuke Homma, K. Imai, Tae-Yeon Lee, Martin Purschke, A. Morreale, Z. Fraenkel, A. Sukhanov, H. Pereira, Y. Morino, Senta Greene, R. K. Choudhury, L. Tomášek, V. S. Pantuev, S. Yokkaichi, R. S. Towell, I. Garishvili, F. Wei, K. A. Drees, A. V. Kazantsev, Y. L. Yamaguchi, A. T. Basye, B. Fadem, E. O'Brien, P. Constantin, B. Komkov, S. Chernichenko, K. Sakashita, Ryugo S. Hayano, M. Oka, A. Dion, Jen-Chieh Peng, S. Bathe, D. Hornback, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Johannes Peter Wessels, C. M. Camacho, Prashant Shukla, B. Bassalleck, N. N. Ajitanand, Agneta Oskarsson, Atsushi Taketani, A. Enokizono, P. Liebing, C. Silvestre, Anne Marie Sickles, K. Okada, Youngil Kwon, K. S. Joo, S. F. Pate, Norio Saito, M. A. L. Leite, A. Deshpande, M. Rosati, Y. Riabov, M. Heffner, M. Konno, Taku Gunji, H. Gong, B. Sahlmueller, R. A. Soltz, H. En'yo, M. J. Leitch, Dong Jo Kim, M. I. Nagy, M. Issah, C. Pinkenburg, Marisilvia Donadelli, V. Bumazhnov, J. Seele, Y. Berdnikov, D. Sharma, T. C. Awes, M. D. Malik, C. Y. Chi, R. Ichimiya, Y. Akiba, Kyoichiro Ozawa, T. Liška, A. Taranenko, Kenta Shigaki, Jun Kikuchi, M. Nguyen, Takahiro Nakamura, M. Grosse Perdekamp, J. Egdemir, E. Vznuzdaev, S. P. Sorensen, Dylan Walker, M. Stepanov, Y. Tanaka, Andry Malala Rakotozafindrabe, Takao Sakaguchi, M. Mishra, S. Nagamiya, S. Dairaku, H. Al-Bataineh, X. R. Wang, A. Veicht, F. Kajihara, G. R. Young, Kazushi Miki, J. S. Kapustinsky, Brajesh K. Singh, Susumu Oda, A. Durum, Y. J. Mao, A. S. Nyanin, Seong H. Kim, T. Horaguchi, C. Klein-Boesing, K. Das, Christophe Pierre Suire, Alexander Milov, Rachid Nouicer, C. Baumann, I. Nakagawa, V. Babintsev, S. Kametani, Y. Nakamiya, Vaclav Vrba, Klaus Johannes Reygers, Minghui Liu, R. Tanabe, D. Layton, A. A. Vinogradov, T. Engelmore, Kenneth Francis Read, Y. Onuki, E. J. Desmond, J. G. Lajoie, Jason Kamin, A. D. Frawley, A. Hadj Henni, J. H. Kang, O. Zaudtke, Jan Rak, J. S. Haggerty, E. P. Hartouni, C. P. Singh, G. S. Kyle, O. Drapier, Frank Ellinghaus, K. Yamaura, F. Staley, L. Baksay, E. R. Kinney, Jiangyong Jia, R. Lacey, B. M. Johnson, Y. Goto, Beomkyu Kim, K. Boyle, S. Huang, R. Granier de Cassagnac, A. Adare, I. J. Choi, Wei Xie, A. Kravitz, S. P. Stoll, D. P. Morrison, S. Campbell, Charles Maguire, James Alexander, C. L. Woody, A. Berdnikov, S. Butsyk, K. B. Lee, V. Papavassiliou, D. E. Fields, D. Winter, D. Yu Peressounko, I. Younus, Y. S. Lai, M. Togawa, A. Kiss, S. Zhou, W. Holzmann, Maya Hachiya Shimomura, H. Liu, R. Averbeck, B. V. Jacak, Byung-Sik Hong, A. Bazilevsky, M. Virius, V. E. Semenov, K. Shoji, S. S.E. Rosendahl, Tatsuya Chujo, E. Kistenev, M. McCumber, A. Isupov, J. Sziklai, Y. I. Makdisi, D. Roach, G. Baksay, K. M. Kijima, Alexandre Lebedev, Hiroyuki Okada, D. M. Lee, I. V. Sourikova, G. Bunce, A. Soldatov, Henner Buesching, S. D. Rolnick, J. L. Charvet, Brian Cole, W. C. Chang, Rushan Han, Eva Haslum, B. Lenzi, A. Churyn, S. Sawada, J. Ying, A. Franz, A. Glenn, M. Kurosawa, Xingguo Li, Vladimir Samsonov, M. J. Tannenbaum, P. W. Stankus, D. Jouan, H. Torii, I. Ravinovich, K. Kiriluk, A. P.T. Palounek, M. Ouchida, M. Naglis, P. Chand, N. Means, J. Asai, R. Pak, D. Mukhopadhyay, S. Rembeczki, C. L. Silva, Marcus Hohlmann, P. Chung, J. T. Mitchell, R. Seidl, E. H. Kim, H. A. Gustafsson, N. Kamihara, J. Imrek, S. E. Williamson, Tamas Ferenc Csorgo, M. Bai, X. He, Shingo Sakai, C. Zhang, Vladislav Manko, M. Slunečka, J. L. Nagle, Kazuyoshi Kurita, P. Ružička, P. Mikeš, V. Peresedov, Masayasu Ishihara, A. Drees, Viktor Riabov, S. Belikov, Ajit Kumar Mohanty, Y. Fukao, T. A. Shibata, S. Esumi, T. Sato, P. Rosnet, K. O. Eyser, A. K. Purwar, O. Dietzsch, W. A. Zajc, V. Baublis, J. Koster, K. Fujiwara, E. T. Atomssa, H. Valle, T. Hester, A. Denisov, V. Cianciolo, Y. Tomita, D. Kawall, K. Tanida, H. Themann, Sergey Fokin, D. Isenhower, C. Vale, B. S. Chang, V. I. Kochetkov, A. Toia, Dipanwita Dutta, J. Jin, R. Bennett, E. M. Takagui, S. Batsouli, L. Mašek, H. Masui, A. K. Dubey, T. Kempel, Dong-Hun Kim, J. Murata, Christine Angela Aidala, J. Klay, T. Niita, Julia Velkovska, Gerd Joachim Kunde, I. Shein, A. A. Bickley, V-N. Tram, H. W. Van Hecke, N. Grau, M. Finger, K. Sedgwick, Motoi Inaba, Alberto Baldisseri, B. Love, Mate Csanad, David D'Enterria, Herve Borel, D. Lynch, A. G. Litvinenko, V. L. Rykov, T. Dahms, A. Kozlov, R. Seto, K. Haruna, K. N. Barish, J. Park, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, T. V. Moukhanova, R. Vértesi, J. E. Frantz, M. L. Brooks, C. A. Ogilvie, T. K. Hemmick, M. Wysocki, Yasuo Miake, L. Kochenda, H. Qu, Hideki Hamagaki, K. Aoki, G. David, S. N. White, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, P. A. Rukoyatkin, B. Meredith, John Hill, Toru Sugitate, François Fleuret, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, and I. Tserruya
Subjects: Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, General Physics and Astronomy, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, Helicity, Nuclear physics, Baryon, Pion, 0103 physical sciences, Proton spin crisis, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The double helicity asymmetry in neutral pion production for p(T) = 1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, Delta G, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of mu 2 = 4 GeV2 a next to leading order QCD analysis gives Delta G([0.02,0.3]) = 0.2, with a constraint of -0.7 < Delta G([0.02,0.3]) < 0.5 at Delta chi(2) = 9 (similar to 3 sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the Delta G constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
Published: 2009
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32. Inclusive cross section and double helicity asymmetry forπ0production inp+pcollisions ats=62.4 GeV

Author: P. Rosnet, V. Singh, P. Liebing, Maya Hachiya Shimomura, K. O. Eyser, A. K. Purwar, K. Fujiwara, Y. I. Makdisi, R. A. Soltz, H. Borel, A. Deshpande, Y. Fukao, K. N. Barish, Anne Marie Sickles, A. Yu. Semenov, B. Azmoun, A. Král, M. J. Kweon, M. Grosse Perdekamp, T. Hester, J. Gosset, J. T. Mitchell, R. Seidl, Vladislav Manko, A. V. Kazantsev, M. Slunečka, S. Belikov, C. Vale, F. Matathias, Kensuke Homma, B. S. Chang, Christine Angela Aidala, J. Klay, Y. Tanaka, P. Constantin, S. Chernichenko, J. L. Charvet, A. P.T. Palounek, B. Bassalleck, S. Sawada, E. H. Kim, M. Konno, H. W. Van Hecke, Y. Nakamiya, J. Ying, A. Franz, A. Berdnikov, G. R. Young, R. S. Towell, I. Garishvili, F. Wei, G. Baksay, Alexei Khanzadeev, E. Stenlund, K. Sakashita, S. Esumi, H. Liu, M. L. Brooks, X. He, W. A. Zajc, S. P. Sorensen, K. A. Drees, Youngil Kwon, L. Baksay, J. Egdemir, Christophe Pierre Suire, Alexander Milov, M. Oka, A. Dion, V-N. Tram, N. Grau, S. Bathe, S. Dairaku, K. Shoji, M. J. Tannenbaum, V. Baublis, Hiroyuki Okada, Dylan Walker, A. Denisov, V. Cianciolo, I. Nakagawa, T. Engelmore, Y. L. Yamaguchi, Y. Tomita, B. Komkov, M. Kurosawa, Charles Maguire, Marisilvia Donadelli, V. Bumazhnov, Jason Kamin, A. Hadj Henni, Sergey Fokin, Agneta Oskarsson, V. Peresedov, T. C. Awes, T. Liška, Norio Saito, Atsushi Taketani, M. A. L. Leite, P. W. Stankus, O. Drapier, Frank Ellinghaus, Y. Berdnikov, H. Torii, E. R. Kinney, T. V. Moukhanova, I. Younus, Jun Kikuchi, Andry Malala Rakotozafindrabe, S. P. Stoll, A. Enokizono, Y. Akiba, J. Koster, D. E. Fields, M. Mishra, Eva Haslum, B. Lenzi, Motoi Inaba, K. S. Sim, Tae-Yeon Lee, D. P. Morrison, E. J. Desmond, S. Campbell, V. Dzhordzhadze, S. Nagamiya, J. S. Kapustinsky, Y. Watanabe, K. Das, M. Togawa, J. Park, B. V. Jacak, D. Winter, D. Yu Peressounko, Seong H. Kim, E. Kistenev, S. S.E. Rosendahl, Martin Purschke, J. G. Lajoie, O. Dietzsch, V. Babintsev, Minghui Liu, S. Batsouli, H. Masui, R. Tanabe, D. Layton, A. Soldatov, S. Afanasiev, Beomkyu Kim, K. Boyle, V. E. Semenov, C. Y. Chi, Tatsuya Chujo, I. V. Sourikova, H. A. Gustafsson, Vaclav Vrba, Klaus Johannes Reygers, E. T. Atomssa, S. N. White, R. Yang, Y. Tsuchimoto, G. Bunce, E. P. Hartouni, Wei Xie, P. Chung, M. McCumber, Mate Csanad, Kenneth Francis Read, A. K. Dubey, H. Valle, A. A. Bickley, A. Ster, J. Imrek, T. L. Thomas, G. S. Kyle, M. Wysocki, C. Zhang, James Alexander, Jen-Chieh Peng, D. Mukhopadhyay, S. Rembeczki, I. E. Yushmanov, O. Zaudtke, R. Vértesi, P. Tarján, P. Ružička, Dipanwita Dutta, Tadaaki Isobe, S. Yokkaichi, R. Averbeck, Byung-Sik Hong, J. Newby, G. Roche, A. Bazilevsky, A. Kiss, K. Imai, W. C. Chang, A. Churyn, P. L. McGaughey, Viktor Riabov, Alexandre Lebedev, D. Jouan, A. Morreale, H. Pei, Julia Velkovska, C. Baumann, S. Kametani, B. Love, M. Chiu, D. M. Lee, Z. Fraenkel, C. M. Camacho, Prashant Shukla, Ryugo S. Hayano, Y. Onuki, J. E. Frantz, I. J. Choi, A. Kravitz, Henner Buesching, C. L. Woody, R. Pak, K. Kiriluk, M. Rosati, David D'Enterria, N. N. Ajitanand, C. P. Singh, Zvi Hirsh Citron, D. Hornback, K. Nakano, Dong Jo Kim, M. Heffner, B. M. Johnson, R. K. Choudhury, S. F. Pate, Jan Rak, Y. Riabov, Rushan Han, Ajit Kumar Mohanty, N. Kamihara, T. A. Shibata, R. Lacey, Takahiro Nakamura, A. G. Litvinenko, A. Taranenko, R. Granier de Cassagnac, Kenta Shigaki, W. E. Sondheim, H. Qu, K. Ozawa, T. Sato, P. Chand, K. S. Joo, A. Adare, Susumu Oda, M. Gonin, M. Virius, Kazushi Miki, Marcus Hohlmann, A. Veicht, A. Isupov, M. Nguyen, Vladimir Samsonov, H. Al-Bataineh, X. R. Wang, Kazuyoshi Kurita, A. A. Vinogradov, D. Ivanischev, A. Durum, Brajesh K. Singh, Hideki Hamagaki, K. Aoki, J. Sziklai, Senta Greene, A. Drees, G. David, P. Mikeš, A. T. Basye, Catherine Micaela Silvestre, Jiangyong Jia, Y. Goto, K. Yamaura, A. Kozlov, R. Seto, P. A. Rukoyatkin, Takao Sakaguchi, T. Ichihara, Brian Cole, M. Naglis, A. S. Nyanin, L. Tomášek, C. L. Silva, V. S. Pantuev, D. Sharma, V. Papavassiliou, C. Klein-Boesing, A. Sukhanov, B. Fadem, D. Isenhower, Matthew G. Reuter, E. O'Brien, Rachid Nouicer, R. Ichimiya, Takahiro Fusayasu, K. Haruna, A. Toia, H. Pereira, A. D. Frawley, Alexander Malakhov, Tamas Ferenc Csorgo, L. Mašek, C. A. Ogilvie, J. L. Nagle, T. K. Hemmick, D. Silvermyr, S. Huang, S. E. Williamson, T. Niita, Masayasu Ishihara, Yasuo Miake, L. S. Zolin, Y. Ikeda, W. J. Park, T. Kempel, Dong-Hun Kim, Taku Gunji, H. Gong, J. Seele, L. Kochenda, M. I. Nagy, Y. Morino, W. Holzmann, P. D. Barnes, A. Yanovich, J. Jin, E. M. Takagui, M. Ouchida, K. Okada, F. Kajihara, B. Sahlmueller, H. En'yo, N. Means, M. J. Leitch, J. Asai, B. Meredith, S. Butsyk, J. G. Boissevain, E. J. Mannel, S. Zhou, A. Baldisseri, S. D. Rolnick, John Hill, Shingo Sakai, Toru Sugitate, M. Issah, M. D. Malik, E. Vznuzdaev, François Fleuret, F. Staley, D. Kawall, A. Glenn, K. Tanida, H. Themann, V. I. Kochetkov, J. Murata, Gerd Joachim Kunde, K. B. Lee, I. Shein, L. Aphecetche, K. Sedgwick, C. Pinkenburg, Johannes Peter Wessels, M. Stepanov, Y. J. Mao, T. Horaguchi, J. H. Kang, J. S. Haggerty, D. Roach, K. M. Kijima, D. Lynch, Y. S. Lai, Xingguo Li, V. L. Rykov, T. Dahms, I. Ravinovich, M. Bai, R. Bennett, M. Finger, I. Tserruya, and Yu. Efremenko
Subjects: Quantum chromodynamics, Physics, Particle physics, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, media_common.quotation_subject, Nuclear Theory, Perturbative QCD, Polarization (waves), 7. Clean energy, 01 natural sciences, Helicity, Asymmetry, Gluon, Nuclear physics, Transverse plane, Proton spin crisis, 0103 physical sciences, Statistical precision, High Energy Physics::Experiment, Relativistic Heavy Ion Collider, Nuclear Experiment, 010306 general physics, media_common
Abstract: The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at sqrt(s)=200 GeV, for inclusive {pi}{sup 0} production at midrapidity. Unpolarized cross section results are given for transverse momenta p{sub T}=0.5 to 20 GeV/c, extending the range of published data to both lower and higher p{sub T}. The cross section is described well for p{sub T} 2 GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a factor of 5 improvement in uncertainties as compared to previously published results, due to both an improved beam polarization of 50%, and to higher integrated luminosity. These measurements are sensitive to the gluon polarization in the proton. Using one representative model of gluon polarization it is demonstrated that the gluon spin contribution to the proton spin is significantly constrained.
Published: 2009
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33. Charged hadron multiplicity fluctuations inAu+AuandCu+Cucollisions fromsNN=22.5to 200 GeV

Author: Yu. Efremenko, Martin Purschke, F. Gastineau, V. Singh, G. B. Kim, D. Kotchetkov, Mate Csanad, J. G. Boissevain, A. Morreale, B. Khachaturov, Z. Fraenkel, Alexei Khanzadeev, Masashi Kaneta, T. Matsumoto, N. Bruner, E. Stenlund, N. N. Ajitanand, David D'Enterria, Hirohiko Sato, H. Sakata, K. Katou, K. Hasuko, S. K. Tuli, R. K. Choudhury, S. S. Adler, G. S. Kyle, C. Pinkenburg, P. Tarján, Sean A. Kelly, N. Willis, R. P. Pisani, James Alexander, Tadaaki Isobe, L. Tomášek, Takahiro Nakamura, V. S. Pantuev, Hiroyuki Okada, A. Hadj Henni, R. Averbeck, J. S. Chai, Susumu Oda, Byung-Sik Hong, A. Bazilevsky, Viktor Veszpremi, Nikolay Tyurin, K. S. Sim, M. Stepanov, G. Roche, Y. J. Mao, S. Kametani, M. Harvey, Pàl Hidas, Saskia Mioduszewski, Joakim Nystrand, Eva Haslum, B. Lenzi, M. N. Wagner, J. H. Kang, Junji Tojo, Y. Watanabe, J. M. Burward-Hoy, J. S. Haggerty, T. Shohjoh, A. Durum, W. C. Smith, L. Sanfratello, K. Boyle, Wei Xie, T. V. Moukhanova, Philippe Rosnet, M. K. Lee, K. Ozawa, K. Okada, S. Belikov, K. S. Joo, P. L. McGaughey, B. Sahlmueller, H. En'yo, P. Constantin, A. Romana, Alexandre Lebedev, M. J. Leitch, Yves Roland Schutz, O. Dietzsch, K. O. Eyser, K. Fujiwara, J. L. Drachenberg, H. Hiejima, D. S. Brown, J. E. Frantz, H. Valle, C. H. Kuberg, C. Silvestre, D. M. Lee, D. Kawall, K. Dehmelt, Xiaopeng Zong, Jen-Chieh Peng, S. Afanasiev, A. Ster, J. Chiba, J. Jin, Dipanwita Dutta, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, E. M. Takagui, K. Tanida, V. I. Kochetkov, R. Pak, R. S. Towell, Y. S. Lai, Herve Borel, D. Lynch, A. Shevel, G. C. Mishra, D. E. Fields, B. D. Fox, Robert F. Hobbs, Ferenc Deák, K. Imai, Julia Velkovska, I. Garishvili, Akio Kiyomichi, Y. L. Yamaguchi, D. Sharma, B. Komkov, R. Vértesi, B. V. Jacak, J. Murata, N. Kamihara, R. Armendariz, T. Hester, Takao Sakaguchi, Kazuyoshi Kurita, Senta Greene, N. Kurihara, J. Gosset, M. Rosati, Charles Maguire, H. W. Van Hecke, J. P. Sullivan, A. Glenn, Dong Jo Kim, S. Leckey, C. Klein-Boesing, Minghui Liu, M. Velkovsky, S. Batsouli, Norio Saito, Anne Marie Sickles, S. P. Sorensen, D. Hornback, F. Matathias, M. McCumber, A. K. Purwar, A. D. Frawley, M. Heffner, C. R. Cleven, C. Haegemann, Y. Inoue, Dylan Walker, A. Drees, Gerd Joachim Kunde, J. Kubart, S. C. Johnson, M. G. Hur, C. Y. Chi, B. Azmoun, A. Král, Youngil Kwon, W. C. Chang, Kensuke Homma, I. Shein, M. A. L. Leite, M. J. Kweon, T. Tabaru, Ch. Finck, V. L. Rykov, T. Dahms, Kenneth Francis Read, Jason Newby, A. Taranenko, R. Kohara, J. Egdemir, P. J. Kroon, B. E. Norman, Y. Le Bornec, Osamu Jinnouchi, Josh Moss, E. O'Brien, Dong-Hun Kim, A. A. Vinogradov, Henrik Tydesjö, Jason Kamin, M. C. McCain, V-N. Tram, S. H. Aronson, A. Kiss, I. Ravinovich, M. Oka, V. Babintsev, J. G. Lajoie, T. Hachiya, R. A. Soltz, L. Aphecetche, Motoi Inaba, Takeo Kawabata, S. P. Stoll, Jiangyong Jia, Y. Goto, Y. Nagata, S. S.E. Rosendahl, Debashish Pal, G. Bunce, S. Sawada, G. R. Young, W. Holzmann, Z. Yasin, Henner Buesching, C. L. Woody, P. Chand, Marcus Hohlmann, Rushan Han, M. N. Hagiwara, S. Butsyk, Vladimir Samsonov, A. P.T. Palounek, C. P. Singh, B. M. Johnson, S. Esumi, A. Churyn, I. Otterlund, M. Grosse Perdekamp, Maya Hachiya Shimomura, Y. I. Makdisi, Kazushi Miki, A. Dion, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, S. N. White, Atsushi Taketani, A. Enokizono, E. H. Kim, I. J. Choi, A. Kravitz, D. Jouan, S. Chernichenko, H. Lim, B. Bassalleck, N. Grau, K. Shoji, J. Park, Johannes Peter Wessels, Florian Bauer, M. A. Volkov, W. A. Zajc, E. Kistenev, S. S. Ryu, M. Konno, P. W. Stankus, K. Das, E. P. Hartouni, J. Ying, A. Franz, Hiroaki Ohnishi, A. Pierson, M. Ouchida, Alberto Baldisseri, A. Isupov, C. Suire, V. Baublis, A. Denisov, V. Cianciolo, H. Kobayashi, S. Bathe, Y. Tsuchimoto, M. Issah, J. M. Qualls, H. Harada, J. Asai, Sergey Fokin, C. A. Ogilvie, M. J. Tannenbaum, R. Bennett, K. Nakano, Agneta Oskarsson, T. K. Hemmick, M. D. Malik, E. Vznuzdaev, Xiao-yan Li, Jan Rak, Yasuo Miake, J. Sziklai, I. E. Yushmanov, H. Pei, T. Horaguchi, A. Hoover, Steven E. Skutnik, V. V. Ikonnikov, Y. Berdnikov, Y. Akiba, R. Lacey, M. Mishra, S. Nagamiya, Brian Cole, J. T. Mitchell, Kazuhiro Tanaka, L. Kochenda, D. Mukhopadhyay, Ahmed Al-Jamel, David Olle Rickard Silvermyr, W. E. Sondheim, M. Finger, S. Rembeczki, R. Granier de Cassagnac, Vaclav Vrba, Klaus Johannes Reygers, B. Espagnon, A. Adare, A. G. Hansen, Shingo Sakai, D. Bucher, M. Naglis, D. Winter, H. A. Gustafsson, D. Yu Peressounko, T. Kawagishi, C. L. Silva, O. Zaudtke, Tamas Ferenc Csorgo, T. L. Thomas, H. Qu, C. Zhang, R. Seidl, Xingguo Li, M. Gonin, Alexander Milov, I. Nakagawa, Vladislav Manko, V.N. Penev, P. A. Rukoyatkin, O. Drapier, Frank Ellinghaus, H. J. Kim, M. Virius, Viktor Riabov, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, H. Pereira, Ryugo S. Hayano, M. Slunečka, S. Y. Fung, J. L. Nagle, Masayasu Ishihara, E. R. Kinney, D. P. Morrison, Y. Riabov, S. Campbell, Kenta Shigaki, Susumu Sato, V. E. Semenov, J. Zimányi, M. Nguyen, Tatsuya Chujo, M. Muniruzzaman, A. S. Nyanin, A. Deshpande, X. Camard, John Hill, K. Oyama, Y. Cobigo, C. Vale, B. S. Chang, Toru Sugitate, M. B. Deaton, L. D. Isenhower, M. Mitrovski, Christine Angela Aidala, J. Klay, I. Younus, Y. Nakamiya, Y. Tanaka, T. K. Shea, M. Wysocki, A. Soldatov, François Fleuret, B. Forestier, G. Baksay, I. V. Sourikova, H. Torii, T. Ichihara, M. T. Bjorndal, S. F. Pate, F. K. Wohn, Matthew G. Reuter, H. Al-Bataineh, X. R. Wang, F. Staley, L. Baksay, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, V. Papavassiliou, Sébastien Gadrat, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, A. V. Kazantsev, P. Mikeš, Yoichiro Fukao, T. C. Awes, T. Liška, Jun Kikuchi, S. Yokkaichi, J. M. Heuser, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, D. Isenhower, A. Toia, L. Mašek, German Martinez, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, Y. S. Kim, J. L. Charvet, T. E. Miller, E. T. Atomssa, R. Santo, P. Chung, M. Holmes, W. S. Emam, X. He, O. O. Omiwade, V. Peresedov, H. Masui, A. K. Dubey, A. A. Bickley, B. Love, Marie Germain, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, V. Dzhordzhadze, S. Takagi, K. N. Barish, T. J. Uam, M. L. Brooks, Tae-Yeon Lee, and I. Tserruya
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Collision, 01 natural sciences, Bin, Ion, Nuclear physics, Superposition principle, Strange matter, 0103 physical sciences, Cluster (physics), Multiplicity (chemistry), Nuclear Experiment, 010306 general physics
Abstract: A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at s(NN) =62.4 and 200 GeV, and Cu+Cu collisions at s(NN) =22.5,62.4, and 200 GeV. Fluctuations are measured as a function of collision centrality, transverse momentum range, and charge sign. After correcting for nondynamical fluctuations due to fluctuations in the collision geometry within a centrality bin, the remaining dynamical fluctuations expressed as the variance normalized by the mean tend to decrease with increasing centrality. The dynamical fluctuations are consistent with or below the expectation from a superposition of participant nucleon-nucleon collisions based upon p+p data, indicating that this dataset does not exhibit evidence of critical behavior in terms of the compressibility of the system. A comparison of the data with a model where hadrons are independently emitted from a number of hadron clusters suggests that the mean number of hadrons per cluster is small in heavy ion collisions.
Published: 2008
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34. J/ψProduction insNN=200 GeVCu+CuCollisions

Author: Martin Purschke, A. Shevel, Robert F. Hobbs, D. Kotchetkov, A. Morreale, G. S. Kyle, A. Kiss, Z. Yasin, Z. Fraenkel, James Alexander, R. Averbeck, Byung-Sik Hong, T. Hester, H. Pei, Henner Buesching, C. L. Woody, A. Bazilevsky, Philippe Rosnet, M. Issah, M. D. Malik, E. Vznuzdaev, Youngil Kwon, Alexandre Lebedev, A. Hadj Henni, D. M. Lee, C. R. Cleven, C. Haegemann, Y. Inoue, V-N. Tram, K. Boyle, Debashish Pal, S. Sawada, Marcus Hohlmann, Saskia Mioduszewski, Wei Xie, E. J. Desmond, J. Chiba, A. Deshpande, Motoi Inaba, M. Togawa, J. Park, Dong-Hun Kim, E. H. Kim, Takao Sakaguchi, K. O. Eyser, A. K. Purwar, K. Fujiwara, J. Ying, A. Franz, J. Jin, E. M. Takagui, L. Tomášek, Y. J. Mao, S. P. Sorensen, K. Das, Dylan Walker, J. Egdemir, O. Dietzsch, Y. Tsuchimoto, S. Kametani, V. S. Pantuev, Jason Kamin, C. Klein-Boesing, Tadaaki Isobe, D. E. Fields, J. G. Lajoie, T. Hachiya, L. Aphecetche, C. P. Singh, B. M. Johnson, E. P. Hartouni, S. P. Stoll, H. Valle, Johannes Peter Wessels, I. E. Yushmanov, B. V. Jacak, A. D. Frawley, T. Tabaru, Junji Tojo, J. H. Kang, J. S. Haggerty, A. Romana, S. S.E. Rosendahl, G. Bunce, N. Grau, Mate Csanad, K. Shoji, I. J. Choi, A. Kravitz, M. Gonin, A. Isupov, C. Suire, Hiroyuki Okada, A. Churyn, D. Lynch, Julia Velkovska, Eva Haslum, B. Lenzi, R. Vértesi, S. H. Aronson, K. Okada, B. Sahlmueller, D. Jouan, I. Younus, J. Sziklai, P. L. McGaughey, M. McCumber, H. En'yo, M. J. Leitch, Charles Maguire, H. W. Van Hecke, P. W. Stankus, H. Pereira, X. He, O. O. Omiwade, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, M. Mitrovski, Andry Malala Rakotozafindrabe, K. S. Joo, V. L. Rykov, T. Dahms, M. Rosati, Y. Nakamiya, W. Holzmann, M. Chiu, Brian Cole, David D'Enterria, V. Peresedov, Y. L. Yamaguchi, A. Soldatov, S. Bathe, B. Komkov, Hiroaki Ohnishi, Agneta Oskarsson, M. Wysocki, S. Afanasiev, Maya Hachiya Shimomura, A. Ster, A. A. Vinogradov, S. Esumi, Y. S. Lai, J. E. Frantz, Alexander Milov, I. Nakagawa, R. S. Towell, E. Kistenev, Jiangyong Jia, I. Garishvili, Akio Kiyomichi, P. Tarján, M. N. Wagner, Norio Saito, Y. Berdnikov, Y. Akiba, M. A. L. Leite, J. Newby, M. Mishra, S. Nagamiya, Alexei Khanzadeev, O. Drapier, Frank Ellinghaus, G. Baksay, I. Ravinovich, Y. Goto, Y. I. Makdisi, Steven E. Skutnik, E. Stenlund, Y. Nagata, E. R. Kinney, N. Kurihara, D. P. Morrison, W. A. Zajc, N. N. Ajitanand, H. Sakata, Vaclav Vrba, Klaus Johannes Reygers, D. Hornback, C. A. Ogilvie, H. Harada, T. K. Hemmick, S. Campbell, Yasuo Miake, Roy A. Lacey, Rushan Han, V. E. Semenov, M. Naglis, M. Heffner, J. G. Boissevain, A. Taranenko, J. Zimányi, Masashi Kaneta, C. Y. Chi, M. K. Lee, Tatsuya Chujo, K. Ozawa, K. Dehmelt, S. Batsouli, V. Baublis, A. Denisov, Takahiro Nakamura, Xingguo Li, H. Masui, A. K. Dubey, V. Babintsev, Jen-Chieh Peng, T. Ichihara, V. Cianciolo, L. Kochenda, C. L. Silva, H. Qu, J. T. Mitchell, S. F. Pate, R. Bennett, M. Finger, M. J. Tannenbaum, Kazushi Miki, H. Al-Bataineh, S. Butsyk, A. A. Bickley, M. B. Deaton, Vladimir Samsonov, C. Pinkenburg, Sergey Fokin, T. V. Moukhanova, O. Zaudtke, Y. Tanaka, Minghui Liu, Dong Jo Kim, Susumu Oda, Hideki Hamagaki, K. Aoki, R. Pak, Osamu Jinnouchi, G. David, N. Kamihara, X. R. Wang, Masayasu Ishihara, R. Armendariz, B. Love, M. Virius, D. Mukhopadhyay, S. Rembeczki, M. Stepanov, G. Roche, T. Horaguchi, Susumu Sato, A. Durum, R. Seidl, Kazuyoshi Kurita, Vladislav Manko, M. Slunečka, I. Tserruya, Yu. Efremenko, S. Belikov, A. Drees, V. Singh, V. Papavassiliou, J. Kubart, Sébastien Gadrat, J. Gosset, Catherine Micaela Silvestre, A. Glenn, Tamas Ferenc Csorgo, Kenneth Francis Read, F. Staley, I. V. Sourikova, A. G. Litvinenko, D. Kawall, J. L. Nagle, K. Tanida, Senta Greene, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, V. I. Kochetkov, S. Yokkaichi, H. A. Gustafsson, B. E. Norman, J. Murata, M. Ouchida, E. O'Brien, A. Kozlov, R. A. Soltz, H. Borel, J. Asai, Matthew G. Reuter, F. Matathias, Kensuke Homma, Gerd Joachim Kunde, A. V. Kazantsev, R. Seto, M. Grosse Perdekamp, Shingo Sakai, I. Shein, L. Baksay, T. L. Thomas, Takahiro Fusayasu, C. Zhang, Ryugo S. Hayano, P. Constantin, S. Chernichenko, K. Haruna, B. Bassalleck, Y. Riabov, M. Konno, Kenta Shigaki, P. Mikeš, M. Nguyen, A. S. Nyanin, Yoichiro Fukao, Viktor Riabov, T. C. Awes, T. Liška, S. Takagi, D. Winter, D. Yu Peressounko, Jun Kikuchi, K. N. Barish, A. P.T. Palounek, M. L. Brooks, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, François Fleuret, S. N. White, D. Sharma, B. Azmoun, A. Král, M. J. Kweon, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, Anne Marie Sickles, G. R. Young, Jan Rak, R. Granier de Cassagnac, A. Adare, K. S. Sim, V. Dzhordzhadze, Y. Watanabe, H. Hiejima, K. Imai, T. A. Shibata, D. Isenhower, A. Toia, L. Mašek, J. L. Charvet, T. E. Miller, E. T. Atomssa, P. Chung, W. S. Emam, H. Kanou, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, A. Baldisseri, K. Nakano, W. E. Sondheim, P. A. Rukoyatkin, and Tae-Yeon Lee
Subjects: Physics, Range (particle radiation), Quantitative Biology::Neurons and Cognition, 010308 nuclear & particles physics, Analytical chemistry, General Physics and Astronomy, chemistry.chemical_element, Plasma, Nuclear matter, 7. Clean energy, 01 natural sciences, Copper, Strange matter, chemistry, 0103 physical sciences, Energy density, High Energy Physics::Experiment, Rapidity, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: Yields for J/psi production in Cu+Cu collisions at root s(NN) = 200 GeV have been measured over the rapidity range |y|< 2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N-part similar to 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).
Published: 2008
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35. Quantitative constraints on the transport properties of hot partonic matter from semi-inclusive single high transverse momentum pion suppression in Au+Au collisions atsNN=200GeV

Author: M. Issah, M. D. Malik, E. Vznuzdaev, A. Hadj Henni, K. Boyle, Wei Xie, L. Aphecetche, Johannes Peter Wessels, P. Tarján, Senta Greene, Youngil Kwon, M. Groose Perdekamp, A. V. Kazantsev, H. Kanou, Taku Gunji, H. Gong, J. Seele, B. E. Norman, E. O'Brien, R. A. Soltz, P. Mikeš, F. Kajihara, H. Delagrange, Yoichiro Fukao, K. Das, J. Chiba, T. C. Awes, T. Liška, Jun Kikuchi, E. P. Hartouni, Y. L. Yamaguchi, H. Pei, G. C. Mishra, Tadaaki Isobe, J. S. Chai, S. Zhou, B. Komkov, Takao Sakaguchi, C. Klein-Boesing, M. Rosati, M. Gonin, P. L. McGaughey, Norio Saito, M. A. L. Leite, A. D. Frawley, T. Tabaru, S. Afanasiev, A. Ster, Y. S. Kim, D. Winter, S. H. Aronson, D. Yu Peressounko, M. Chiu, T. A. Shibata, H. Pereira, A. A. Vinogradov, Henrik Tydesjö, J. M. Burward-Hoy, W. Holzmann, Maya Hachiya Shimomura, Y. I. Makdisi, D. Hornback, Jiangyong Jia, Y. Goto, A. Kiss, Z. Yasin, Henner Buesching, C. L. Woody, R. S. Towell, J. G. Boissevain, M. Naglis, M. Heffner, V. Babintsev, Minghui Liu, C. L. Silva, Masashi Kaneta, I. Garishvili, Akio Kiyomichi, M. J. Tannenbaum, G. S. Kyle, A. Taranenko, D. Isenhower, J. L. Drachenberg, I. Ravinovich, N. Willis, James Alexander, A. Toia, Masayasu Ishihara, N. Kurihara, M. B. Deaton, C. Pinkenburg, W. C. Smith, L. Mašek, D. Mukhopadhyay, Kazushi Miki, S. Rembeczki, Marcus Hohlmann, R. Greiner De Cassagnac, S. P. Sorensen, Susumu Sato, Dylan Walker, H. A. Gustafsson, D. Bucher, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, M. Stepanov, G. Roche, Y. J. Mao, Y. Tanaka, Kenneth Francis Read, J. L. Charvet, Philippe Rosnet, M. G. Hur, C. Y. Chi, S. Kametani, D. Kawall, C. Zhang, T. L. Thomas, T. K. Shea, Anne Marie Sickles, Alexandre Lebedev, K. Tanida, M. K. Lee, K. Ozawa, J. H. Kang, S. Bathe, V. I. Kochetkov, Y. Nagata, J. G. Lajoie, D. M. Lee, K. Hasuko, T. E. Miller, E. T. Atomssa, Agneta Oskarsson, T. Hachiya, J. S. Haggerty, A. Romana, C. P. Singh, J. Murata, Viktor Riabov, B. M. Johnson, L. Tomášek, Y. Berdnikov, Gerd Joachim Kunde, G. R. Young, P. Chung, I. J. Choi, J. Imrek, A. Kravitz, Hiroyuki Okada, Hiroaki Ohnishi, S. Batsouli, Y. Akiba, A. Isupov, C. Suire, V. S. Pantuev, I. Shein, M. Holmes, M. Mishra, S. Nagamiya, Joakim Nystrand, Kazuhiro Tanaka, Ryugo S. Hayano, J. Sziklai, M. Harvey, W. S. Emam, E. H. Kim, F. Staley, L. Baksay, Brian Cole, Eva Haslum, B. Lenzi, S. S. Ryu, Jan Rak, Vaclav Vrba, O. Dietzsch, H. Valle, Klaus Johannes Reygers, Y. S. Lai, T. Ichihara, Alberto Baldisseri, A. Deshpande, M. C. McCain, Junji Tojo, Y. Riabov, Matthew G. Reuter, J. Gosset, Charles Maguire, A. Adare, Saskia Mioduszewski, S. Leckey, A. P.T. Palounek, Takahiro Fusayasu, J. P. Sullivan, K. O. Eyser, K. Fujiwara, I. D. Ojha, Alexander Malakhov, K. Okada, S. Esumi, B. Sahlmueller, Kenta Shigaki, Josh Moss, M. Nguyen, D. Silvermyr, H. En'yo, W. A. Zajc, Xingguo Li, P. Constantin, M. J. Leitch, I. Younus, E. Kistenev, Julia Velkovska, L. S. Zolin, W. J. Park, V. Baublis, A. Denisov, V. Cianciolo, M. Mitrovski, J. Jin, E. M. Takagui, Mate Csanad, A. Soldatov, Sergey Fokin, P. D. Barnes, A. Yanovich, H. W. Van Hecke, R. Bennett, T. Horaguchi, H. Harada, S. N. White, Tae-Yeon Lee, K. S. Sim, Y. Watanabe, Xiao-yan Li, A. S. Nyanin, K. Nakano, S. Yokkaichi, J. M. Heuser, W. E. Sondheim, M. Wysocki, P. A. Rukoyatkin, S. Y. Fung, Martin Purschke, Ahmed Al-Jamel, F. Gastineau, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, E. J. Desmond, F. Matathias, M. Finger, Kensuke Homma, David D'Enterria, François Fleuret, B. Forestier, J. E. Frantz, M. Togawa, H. Hiejima, Robert F. Hobbs, S. Chernichenko, J. Park, H. Lim, Florian Bauer, B. Bassalleck, R. P. Pisani, M. Konno, D. Kotchetkov, Y. Tsuchimoto, Y. Nakamiya, Debashish Pal, G. Baksay, K. Imai, A. Morreale, Nikolay Tyurin, S. Sawada, M. T. Bjorndal, I. E. Yushmanov, Herve Borel, D. Lynch, J. Ying, A. Franz, Z. Fraenkel, M. N. Wagner, R. Vértesi, J. T. Mitchell, A. Glenn, A. Shevel, S. Butsyk, R. Seidl, B. Espagnon, Vladislav Manko, X. He, M. Slunečka, T. Hester, S. F. Pate, Vladimir Samsonov, B. Azmoun, A. Král, M. J. Kweon, I. Otterlund, O. O. Omiwade, V. L. Rykov, T. Dahms, Jason Newby, H. Al-Bataineh, X. R. Wang, Y. Le Bornec, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, V-N. Tram, Tamas Ferenc Csorgo, Alexei Khanzadeev, E. Stenlund, O. Zaudtke, I. V. Sourikova, J. L. Nagle, H. Sakata, Motoi Inaba, V. Papavassiliou, M. Oka, Sébastien Gadrat, V. Peresedov, M. Virius, A. Dion, C. Silvestre, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, T. V. Moukhanova, M. Ouchida, Atsushi Taketani, A. Enokizono, Y. Cobigo, S. Belikov, K. S. Joo, J. Asai, Shingo Sakai, Roy A. Lacey, Rushan Han, M. N. Hagiwara, D. Sharma, H. Masui, A. K. Dubey, A. A. Bickley, S. Takagi, K. N. Barish, D. E. Fields, B. V. Jacak, M. McCumber, A. K. Purwar, M. L. Brooks, S. Kelly, Alexander Milov, N. N. Ajitanand, I. Nakagawa, B. Love, O. Drapier, Frank Ellinghaus, Takahiro Nakamura, Marie Germain, Susumu Oda, E. R. Kinney, T. Shohjoh, A. Durum, D. P. Morrison, S. Campbell, D. S. Brown, V. E. Semenov, A. G. Litvinenko, J. Zimányi, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, Hirohiko Sato, S. K. Tuli, K. Dehmelt, Jen-Chieh Peng, Dong Jo Kim, Osamu Jinnouchi, A. Kozlov, R. Seto, K. Haruna, V. Dzhordzhadze, R. Pak, N. Kamihara, R. Armendariz, Kazuyoshi Kurita, A. Drees, J. Kubart, J. Egdemir, C. R. Cleven, Jason Kamin, C. Haegemann, Y. Inoue, S. P. Stoll, P. J. Kroon, Dong-Hun Kim, S. S.E. Rosendahl, G. Bunce, Steven E. Skutnik, A. Churyn, D. Jouan, H. Qu, Hideki Hamagaki, K. Aoki, G. David, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, N. Grau, K. Shoji, L. Kochenda, P. W. Stankus, and T. Kawagishi
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Opacity, 010308 nuclear & particles physics, Transport coefficient, Charge density, Parton, 01 natural sciences, Standard deviation, Nuclear physics, Pion, 0103 physical sciences, Transverse momentum, Nuclear Experiment, 010306 general physics
Abstract: The PHENIX experiment has measured the suppression of semi-inclusive single high-transverse-momentum pi(0)'s in Au+Au collisions at root s(NN) = 200 GeV. The present understanding of this suppression is in terms of energy loss of the parent (fragmenting) parton in a dense color-charge medium. We have performed a quantitative comparison between various parton energy-loss models and our experimental data. The statistical point-to-point uncorrelated as well as correlated systematic uncertainties are taken into account in the comparison. We detail this methodology and the resulting constraint on the model parameters, such as the initial color-charge density dN(g)/dy, the medium transport coefficient , or the initial energy-loss parameter epsilon(0). We find that high-transverse-momentum pi(0) suppression in Au+Au collisions has sufficient precision to constrain these model-dependent parameters at the +/- 20-25% (one standard deviation) level. These constraints include only the experimental uncertainties, and further studies are needed to compute the corresponding theoretical uncertainties.
Published: 2008
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36. Source Breakup Dynamics inAu+AuCollisions atsNN=200 GeVvia Three-Dimensional Two-Pion Source Imaging

Author: K. Boyle, Wei Xie, I. Ravinovich, M. Rosati, Mate Csanad, Steven E. Skutnik, R. Vértesi, A. Kiss, Robert F. Hobbs, E. H. Kim, Henner Buesching, C. L. Woody, K. S. Sim, I. Tserruya, Marie Germain, Bruno Espagnon, A. A. Vinogradov, Henrik Tydesjö, R. S. Towell, H. Qu, R. A. Soltz, J. Chiba, Martin Purschke, F. Gastineau, Akio Kiyomichi, Y. Nagata, Hideki Hamagaki, K. Aoki, G. David, Jiangyong Jia, Y. Goto, M. Chiu, Y. Tanaka, T. K. Shea, Y. Watanabe, Yu. Efremenko, V. Singh, T. Ichihara, Matthew G. Reuter, K. Hasuko, A. G. Litvinenko, T. A. Shibata, G. C. Mishra, H. A. Gustafsson, N. Kurihara, S. S. Ryu, Youngil Kwon, I. D. Ojha, D. Kotchetkov, Alexander Malakhov, Debashish Pal, M. Grosse Perdekamp, H. Hiejima, David D'Enterria, C. Zhang, Takao Sakaguchi, M. G. Hur, C. Y. Chi, Kensuke Homma, C. R. Cleven, C. Klein-Boesing, S. Sawada, A. Kozlov, D. Silvermyr, M. Naglis, S. Bathe, Agneta Oskarsson, S. Chernichenko, R. Seto, Hiroyuki Okada, C. L. Silva, D. Isenhower, L. S. Zolin, Jason Newby, H. Lim, K. Haruna, R. Bennett, Y. Berdnikov, R. P. Pisani, A. D. Frawley, S. Kelly, P. J. Kroon, T. Tabaru, N. N. Ajitanand, W. J. Park, Y. Akiba, K. Imai, A. Franz, C. P. Singh, V. S. Pantuev, F. Staley, B. Bassalleck, S. Nagamiya, Kazuhiro Tanaka, Joakim Nystrand, B. M. Johnson, Charles Maguire, Ahmed Al-Jamel, V. Dzhordzhadze, Z. Fraenkel, M. Konno, Klaus Johannes Reygers, Nikolay Tyurin, Eva Haslum, M. Harvey, B. Komkov, A. Isupov, S. Leckey, Takahiro Nakamura, O. Dietzsch, Hirohiko Sato, S. K. Tuli, X. He, O. O. Omiwade, K. Das, J. E. Frantz, N. Grau, Jan Rak, M. N. Wagner, P. D. Barnes, A. Yanovich, Junji Tojo, Viktor Riabov, J. Sziklai, K. Shoji, Taku Gunji, J. T. Mitchell, H. Valle, Josh Moss, Masayasu Ishihara, E. P. Hartouni, E. J. Desmond, S. H. Aronson, Brian Cole, Norio Saito, M. A. L. Leite, V. Peresedov, T. Shohjoh, A. Durum, S. N. White, Vladislav Manko, R. Granier de Cassagnac, F. Kajihara, Jen-Chieh Peng, K. Okada, M. Togawa, E. Kistenev, Julia Velkovska, Herve Borel, Susumu Sato, P. W. Stankus, J. Park, S. Afanasiev, B. Sahlmueller, H. En'yo, Saskia Mioduszewski, H. Delagrange, P. Constantin, D. S. Brown, W. Holzmann, S. Batsouli, A. Glenn, M. Gonin, Florian Bauer, A. Ster, M. J. Leitch, D. Winter, D. Yu Peressounko, S. Belikov, K. S. Joo, Maya Hachiya Shimomura, P. Tarján, J. M. Burward-Hoy, H. Masui, A. K. Dubey, V. Babintsev, V. L. Rykov, T. Dahms, D. E. Fields, H. Harada, H. W. Van Hecke, K. Tanida, J. Jin, G. S. Kyle, Y. I. Makdisi, Y. Tsuchimoto, B. V. Jacak, H. Pei, V. I. Kochetkov, Dong Jo Kim, E. M. Takagui, S. Takagi, N. Willis, James Alexander, M. C. McCain, W. E. Sondheim, Osamu Jinnouchi, H. Pereira, N. Kamihara, Y. S. Kim, V-N. Tram, W. C. Smith, K. N. Barish, R. Averbeck, O. Zaudtke, I. E. Yushmanov, A. K. Purwar, F. Matathias, J. Murata, Byung-Sik Hong, R. Armendariz, A. Bazilevsky, M. Wysocki, A. P.T. Palounek, M. K. Lee, K. Ozawa, Kazuyoshi Kurita, P. A. Rukoyatkin, M. Heffner, S. Y. Fung, C. Vale, Gerd Joachim Kunde, Philippe Rosnet, Alexei Khanzadeev, Motoi Inaba, A. Drees, J. L. Drachenberg, Christophe Pierre Suire, Alexander Milov, Senta Greene, T. E. Miller, Christine Angela Aidala, A. Taranenko, A. Enokizono, S. Esumi, S. P. Sorensen, E. Stenlund, M. J. Tannenbaum, Alexandre Lebedev, D. M. Lee, I. Shein, O. Drapier, D. Sharma, B. E. Norman, P. Chung, John Hill, W. A. Zajc, Y. Cobigo, M. Holmes, E. R. Kinney, D. P. Morrison, E. O'Brien, H. A. Torii, Alberto Baldisseri, A. Deshpande, M. L. Brooks, Anne Marie Sickles, S. F. Pate, V. Baublis, S. Campbell, B. Azmoun, Toru Sugitate, D. Mukhopadhyay, L. D. Isenhower, A. Denisov, V. Cianciolo, C. A. Ogilvie, V. E. Semenov, J. Zimányi, D. Bucher, M. J. Kweon, Sergey Fokin, T. K. Hemmick, Tatsuya Chujo, Yasuo Miake, J. G. Lajoie, T. Hachiya, M. T. Bjorndal, Y. Le Bornec, T. V. Moukhanova, François Fleuret, B. Forestier, X. R. Wang, T. Horaguchi, L. Kochenda, I. J. Choi, Hiroaki Ohnishi, T. Kawagishi, J. Egdemir, I. Younus, S. P. Stoll, V. Papavassiliou, Sébastien Gadrat, S. S.E. Rosendahl, G. Bunce, G. R. Young, D. Jouan, A. Soldatov, Xingguo Li, A. Dion, Atsushi Taketani, T. L. Thomas, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, I. V. Sourikova, Shingo Sakai, S. Kametani, J. H. Kang, J. S. Haggerty, A. Romana, M. Issah, M. D. Malik, E. Vznuzdaev, L. Aphecetche, J. G. Boissevain, Masashi Kaneta, Johannes Peter Wessels, C. Pinkenburg, M. Stepanov, G. Roche, J. Gosset, J. P. Sullivan, S. Yokkaichi, J. M. Heuser, Tadaaki Isobe, S. Butsyk, J. S. Chai, Vladimir Samsonov, P. L. McGaughey, I. Otterlund, A. V. Kazantsev, Yoichiro Fukao, T. C. Awes, Tamas Ferenc Csorgo, Minghui Liu, J. L. Nagle, Kenneth Francis Read, V. Bumazhnov, M. P. Comets, Roy A. Lacey, M. N. Hagiwara, and A. Hadj Henni
Subjects: Source function, Physics, Range (particle radiation), 010308 nuclear & particles physics, Dynamics (mechanics), General Physics and Astronomy, Breakup, 01 natural sciences, Nuclear physics, Correlation function (statistical mechanics), Pion, 0103 physical sciences, Transverse momentum, Atomic physics, Nuclear Experiment, 010306 general physics, Beam (structure)
Abstract: A three-dimensional correlation function obtained from midrapidity, low p(T), pion pairs in central Au+Au collisions at root s(NN) = 200 GeV is studied. The extracted model-independent source function indicates a long range tail in the directions of the pion pair transverse momentum (out) and the beam (long). A proper breakup time tau(0) similar to 9 fm/c and a mean proper emission duration Delta tau similar to 2 fm/c, leading to sizable emission time differences ( approximate to 12 fm/c), are required to allow models to be successfully matched to these tails. The model comparisons also suggest an outside-in "burning" of the emission source reminiscent of many hydrodynamical models.
Published: 2008
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37. Cold nuclear matter effects onJ/ψproduction as constrained by deuteron-gold measurements atsNN=200GeV

Author: V. I. Kochetkov, B. Khachaturov, S. C. Johnson, T. Matsumoto, J. Murata, B. Azmoun, A. Král, M. J. Kweon, K. Hasuko, M. Gonin, A. Shevel, Gerd Joachim Kunde, T. L. Thomas, V.N. Penev, T. Hester, Hiroyuki Okada, Y. Le Bornec, S. Esumi, Joakim Nystrand, Eva Haslum, B. Lenzi, M. Oka, I. Shein, R. A. Soltz, H. Borel, J. E. Frantz, C. H. Kuberg, J. Chiba, J. Gosset, J. P. Sullivan, H. Pereira, A. Dion, Ryugo S. Hayano, M. Grosse Perdekamp, J. M. Burward-Hoy, J. L. Charvet, Tae-Yeon Lee, Martin Purschke, W. A. Zajc, D. Kotchetkov, V-N. Tram, G. C. Mishra, A. Morreale, Z. Fraenkel, Atsushi Taketani, A. Enokizono, Y. Riabov, R. K. Choudhury, Kenta Shigaki, D. Lynch, M. Nguyen, A. Pierson, V. Baublis, K. S. Joo, A. Deshpande, L. Sanfratello, M. B. Deaton, A. Denisov, S. Afanasiev, A. Ster, E. H. Kim, A. S. Nyanin, M. K. Lee, K. Ozawa, T. E. Miller, E. T. Atomssa, Hiroaki Ohnishi, V. Cianciolo, Motoi Inaba, A. Glenn, D. Sharma, Takao Sakaguchi, C. Klein-Boesing, Minghui Liu, B. D. Fox, R. Santo, David Olle Rickard Silvermyr, Sergey Fokin, L. Tomášek, Mate Csanad, V. S. Pantuev, J. M. Qualls, P. Chung, A. D. Frawley, S. Butsyk, X. He, M. Harvey, O. O. Omiwade, Kenneth Francis Read, Y. Tanaka, Vladimir Samsonov, T. Horaguchi, I. Otterlund, Junji Tojo, T. Tabaru, A. Hoover, V. L. Rykov, T. Dahms, S. Yokkaichi, Youngil Kwon, I. Younus, J. M. Heuser, D. Winter, K. Okada, V. Peresedov, E. J. Desmond, D. Yu Peressounko, T. K. Shea, W. S. Emam, Jean-Pierre Cussonneau, B. Sahlmueller, H. En'yo, David D'Enterria, S. H. Aronson, S. Batsouli, P. Constantin, M. J. Leitch, R. S. Towell, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, D. Kawall, I. Ravinovich, M. Togawa, L. Aphecetche, Takeo Kawabata, M. C. McCain, J. Park, A. Soldatov, Y. J. Mao, P. Tarján, Sean A. Kelly, R. P. Pisani, F. Kajihara, A. V. Kazantsev, S. Kametani, W. Holzmann, Florian Bauer, D. Hornback, I. Garishvili, Akio Kiyomichi, Nikolay Tyurin, Viktor Veszpremi, Y. Nagata, H. Delagrange, H. Masui, A. K. Dubey, Xingguo Li, D. E. Fields, M. N. Wagner, Pàl Hidas, Anne Marie Sickles, M. Heffner, P. Mikeš, M. Naglis, A. A. Bickley, J. H. Kang, S. Takagi, J. S. Haggerty, C. L. Silva, J. L. Drachenberg, Y. Tsuchimoto, A. Romana, Maya Hachiya Shimomura, A. P.T. Palounek, S. Zhou, S. S. Ryu, N. Kurihara, A. Taranenko, Yoichiro Fukao, Tamas Ferenc Csorgo, K. N. Barish, I. V. Sourikova, H. Torii, B. V. Jacak, A. Baldisseri, I. E. Yushmanov, S. P. Sorensen, Y. I. Makdisi, Dylan Walker, T. C. Awes, T. Liška, Kazushi Miki, Masayasu Ishihara, Susumu Sato, Jun Kikuchi, Senta Greene, Tadaaki Isobe, L. Baksay, M. Muniruzzaman, Alexei Khanzadeev, N. Bruner, E. Stenlund, J. L. Nagle, H. Sakata, H. A. Gustafsson, M. Ouchida, M. Chiu, Ajit Kumar Mohanty, T. J. Uam, C. Y. Chi, F. Staley, T. A. Shibata, G. R. Young, Johannes Peter Wessels, M. J. Tannenbaum, B. E. Norman, R. Bennett, E. O'Brien, C. Zhang, J. Asai, J. G. Lajoie, Charles Maguire, S. Leckey, T. Hachiya, M. L. Brooks, M. McCumber, A. K. Purwar, Xiao-yan Li, V. V. Ikonnikov, Y. S. Lai, Ahmed Al-Jamel, M. Finger, A. G. Hansen, B. Love, Shingo Sakai, I. J. Choi, A. Kravitz, Marie Germain, D. Mukhopadhyay, S. Rembeczki, T. V. Moukhanova, D. Isenhower, Viktor Riabov, Saskia Mioduszewski, O. Zaudtke, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Josh Moss, A. G. Litvinenko, A. Toia, L. Mašek, R. Vértesi, German Martinez, D. Bucher, J. G. Boissevain, Masashi Kaneta, Andry Malala Rakotozafindrabe, M. Virius, A. Kozlov, R. Seto, K. Katou, E. Kistenev, K. Haruna, Yves Roland Schutz, Ch. Finck, Jason Newby, K. S. Sim, C. Pinkenburg, Y. L. Yamaguchi, V. Dzhordzhadze, Y. Watanabe, J. Jin, W. C. Chang, H. Harada, E. M. Takagui, Y. Cobigo, M. Stepanov, G. Roche, H. Pei, Roy A. Lacey, M. Issah, B. Komkov, C. P. Singh, N. N. Ajitanand, Rushan Han, B. M. Johnson, Takahiro Nakamura, A. Isupov, C. Suire, H. J. Kim, J. Sziklai, Susumu Oda, Brian Cole, A. Durum, M. D. Malik, H. Hiejima, E. Vznuzdaev, Catherine Micaela Silvestre, D. S. Brown, K. Imai, Norio Saito, M. A. L. Leite, A. Hadj Henni, K. Boyle, Jan Rak, Wei Xie, R. Granier de Cassagnac, A. Adare, V. Babintsev, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, Xiaopeng Zong, M. Mitrovski, R. Pak, Ferenc Deák, N. Kamihara, M. Wysocki, R. Armendariz, Kazuyoshi Kurita, Robert F. Hobbs, A. Drees, J. Kubart, M. A. Volkov, Debashish Pal, S. Sawada, J. Ying, A. Franz, C. A. Ogilvie, B. Espagnon, T. K. Hemmick, Yasuo Miake, S. F. Pate, L. Kochenda, H. Al-Bataineh, X. R. Wang, C. R. Cleven, C. Haegemann, Y. Inoue, R. Kohara, J. Egdemir, V. Papavassiliou, Jason Kamin, Sébastien Gadrat, S. P. Stoll, P. J. Kroon, A. Kiss, S. S.E. Rosendahl, Dong-Hun Kim, G. Bunce, Z. Yasin, Henner Buesching, C. L. Woody, A. Churyn, D. Jouan, P. Chand, Marcus Hohlmann, Steven E. Skutnik, H. Kobayashi, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, K. O. Eyser, K. Fujiwara, H. W. Van Hecke, H. Qu, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, I. Tserruya, Yu. Efremenko, V. Singh, G. B. Kim, Hirohiko Sato, K. Dehmelt, Jen-Chieh Peng, N. Grau, K. Shoji, Dong Jo Kim, Osamu Jinnouchi, Alexander Milov, I. Nakagawa, P. W. Stankus, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, V. E. Semenov, J. Zimányi, Tatsuya Chujo, O. Dietzsch, H. Valle, K. Das, E. P. Hartouni, Dipanwita Dutta, T. Ichihara, Julia Velkovska, F. K. Wohn, M. Rosati, Y. Nakamiya, M. Velkovsky, Matthew G. Reuter, Takahiro Fusayasu, G. Baksay, I. D. Ojha, M. T. Bjorndal, A. A. Vinogradov, Henrik Tydesjö, Alexander Malakhov, Jiangyong Jia, Y. Goto, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, F. Matathias, Kensuke Homma, K. Nakano, W. E. Sondheim, S. Chernichenko, H. Lim, P. A. Rukoyatkin, S. Y. Fung, B. Bassalleck, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, M. Konno, P. L. McGaughey, François Fleuret, J. T. Mitchell, R. Seidl, Vladislav Manko, M. Slunečka, S. Belikov, X. Camard, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, and K. Tanida
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Quarkonium, Nuclear matter, Breakup, 7. Clean energy, 01 natural sciences, Baryon, Nuclear physics, 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We present a new analysis of J/psi production yields in deuteron-gold collisions at root s(NN) =200 GeV using data taken from the PHENIX experiment in 2003 and previously published in S. S. Adler [Phys. Rev. Lett 96, 012304 (2006)]. The high statistics proton-proton J/psi data taken in 2005 are used to improve the baseline measurement and thus construct updated cold nuclear matter modification factors (R-dAu). A suppression of J/psi in cold nuclear matter is observed as one goes forward in rapidity (in the deuteron-going direction), corresponding to a region more sensitive to initial-state low-x gluons in the gold nucleus. The measured nuclear modification factors are compared to theoretical calculations of nuclear shadowing to which a J/psi (or precursor) breakup cross section is added. Breakup cross sections of sigma(breakup)=2.8(-1.4)(+1.7) (2.2(-1.5)(+1.6)) mb are obtained by fitting these calculations to the data using two different models of nuclear shadowing. These breakup cross-section values are consistent within large uncertainties with the 4.2 +/- 0.5 mb determined at lower collision energies. Projecting this range of cold nuclear matter effects to copper-copper and gold-gold collisions reveals that the current constraints are not sufficient to firmly quantify the additional hot nuclear matter effect.
Published: 2008
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38. Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions atsNN=200GeV

Author: D. E. Fields, T. E. Miller, B. V. Jacak, R. Santo, Jen-Chieh Peng, A. K. Purwar, B. D. Fox, P. Tarján, E. J. Desmond, Dong Jo Kim, Sean A. Kelly, M. Germain, Osamu Jinnouchi, S. C. Johnson, Viktor Veszpremi, S. Butsyk, Vladimir Samsonov, Jean-Pierre Cussonneau, I. Tserruya, M. Togawa, J. Park, Yu. Efremenko, S. Y. Fung, Florian Bauer, M. J. Kweon, G. B. Kim, J. Gosset, B. Khachaturov, J. P. Sullivan, T. Matsumoto, M. Chiu, Ajit Kumar Mohanty, K. Hasuko, Evert Stenlund, T. A. Shibata, J. L. Drachenberg, Senta Greene, Joakim Nystrand, S. F. Pate, K. Das, M. T. Bjorndal, John Hill, K. Oyama, E. P. Hartouni, S. Afanasiev, A. Ster, Y. Tanaka, T. K. Shea, Y. Le Bornec, M. Heffner, A. Taranenko, E. O'Brien, Toru Sugitate, Y. Tsuchimoto, Ferenc Deák, L. D. Isenhower, J. M. Burward-Hoy, M. Rosati, E. H. Kim, Jan Rak, Tamas Ferenc Csorgo, R. Granier de Cassagnac, D. Mukhopadhyay, D. Isenhower, German Martinez, T. L. Thomas, Y. Cobigo, N. Kamihara, N. N. Ajitanand, Hirohiko Sato, Maya Hachiya Shimomura, J. E. Frantz, S. Yokkaichi, I. E. Yushmanov, F. Matathias, R. Armendariz, Takahiro Nakamura, J. M. Heuser, H. Masui, F. Staley, M. Velkovsky, Charles Maguire, S. Leckey, V. Papavassiliou, Sébastien Gadrat, François Fleuret, Y. J. Kwon, Robert F. Hobbs, Y. J. Mao, A. Durum, Herve Borel, Motoi Inaba, A. Glenn, V. L. Rykov, Kensuke Homma, M. Inuzuka, Hideki Hamagaki, K. Aoki, X. He, G. David, S. Chernichenko, Ryugo S. Hayano, L. Sanfratello, Y. I. Makdisi, A. Devismes, F. Kajihara, H. Delagrange, J. L. Nagle, S. Kametani, Pàl Hidas, J. S. Haggerty, A. Romana, A. A. Vinogradov, Henrik Tydesjö, Y. Riabov, S. N. White, Kenta Shigaki, A. Kiss, Josh Moss, E. Kistenev, J. Velkovska, S. S. Adler, G. S. Kyle, Viktor Riabov, N. Willis, M. Grosse Perdekamp, A. Pierson, Henner Buesching, Mate Csanad, Anne Marie Sickles, James Alexander, S. Sawada, Zvi Hirsh Citron, I. Ravinovich, J. H. Kang, J. G. Lajoie, T. Hachiya, H. Lim, B. Bassalleck, A. Franz, S. Zhou, Jiangyong Jia, S. Batsouli, Ingvar Otterlund, A. Drees, Alexei Khanzadeev, Y. Goto, N. Bruner, R. Averbeck, D. S. Brown, A. G. Litvinenko, Byung-Sik Hong, S. S. Ryu, M. A. Volkov, A. Bazilevsky, I. J. Choi, W. Xie, W. E. Sondheim, P. Chand, M. Konno, David D'Enterria, Philippe Rosnet, P. L. McGaughey, B. Espagnon, A. Kozlov, Anders Oskarsson, Hiroaki Ohnishi, R. Seto, R. P. Pisani, Atsushi Taketani, M. J. Tannenbaum, H. Okada, D. M. Lee, C. Zhang, Xiaopeng Zong, H. Pei, V. Bumazhnov, M. P. Comets, V. S. Pantuev, B. A. Cole, T. Ichihara, Nikolay Tyurin, Ahmed Al-Jamel, G. R. Young, J. T. Mitchell, N. Grau, J. G. Boissevain, L. Aphecetche, F. K. Wohn, J. M. Qualls, Matthew G. Reuter, V. Dzhordzhadze, S. Takagi, A. V. Kazantsev, M. Harvey, B. Komkov, V. V. Ikonnikov, K. Katou, A. S. Nyanin, H. Kobayashi, Hans-Åke Gustafsson, S. Belikov, K. S. Joo, K. N. Barish, C. A. Ogilvie, C. Pinkenburg, I. D. Ojha, Junji Tojo, S. Bathe, Alexander Malakhov, H. J. Kim, Norio Saito, M. A. L. Leite, T. K. Hemmick, Vladislav Manko, Takeo Kawabata, M. C. McCain, A. P.T. Palounek, L. S. Zolin, M. Stepanov, W. J. Park, G. Roche, K. Okada, Y. Akiba, Yasuo Miake, V. N. Tram, D. Bucher, H. En'yo, M. Kaneta, O. Dietzsch, T. J. Uam, P. D. Barnes, A. Yanovich, P. Constantin, V. Babintsev, S. Nagamiya, Kazuhiro Tanaka, M. J. Leitch, Yoichiro Fukao, S. Esumi, P. W. Stankus, R. A. Soltz, Klaus Johannes Reygers, M. L. Brooks, Dipanwita Dutta, C. H. Kuberg, T. C. Awes, Kyoichiro Ozawa, J. Chiba, V. Peresedov, Jun Kikuchi, L. Kochenda, T. Chujo, S. Sorensen, W. A. Zajc, V. Baublis, Minghui Liu, G. C. Mishra, Ch. Finck, Jason Newby, X. Camard, Kenneth Francis Read, Xingguo Li, Takao Sakaguchi, Martin Purschke, A. Denisov, V. Cianciolo, W. C. Chang, R. Kohara, C. Klein-Boesing, Sergey Fokin, D. Kotchetkov, M. Gonin, A. D. Frawley, T. Horaguchi, H. W. Vanhecke, Christine Angela Aidala, Z. Fraenkel, S. H. Aronson, S. P. Stoll, R. K. Choudhury, C. L. Woody, V.N. Penev, A. Hoover, W. Holzmann, S. S.E. Rosendahl, G. Bunce, Roy A. Lacey, A. Lebedev, S. Sakai, K. Kurita, D. Jouan, H. Pereira, P. J. Kroon, I. V. Sourikova, H. Torii, A. G. Hansen, M. Issah, E. Vznuzdaev, X. R. Wang, Alexander Milov, O. Drapier, E. R. Kinney, D. P. Morrison, V. E. Semenov, J. Zimányi, A. Deshpande, K. Tanida, V. I. Kochetkov, D. Silvermyr, Gerd Joachim Kunde, I. Shein, Alberto Baldisseri, Y. Watanabe, A. Soldatov, C. L. Silva, Masayasu Ishihara, Susumu Sato, M. Muniruzzaman, Saskia Mioduszewski, Yves Roland Schutz, D. Pal, E. M. Takagui, R. S. Towell, Akio Kiyomichi, C. Y. Chi, B. M. Johnson, A. Isupov, K. S. Sim, H. Hiejima, and K. Imai
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, 01 natural sciences, 7. Clean energy, Spectral line, Charged particle, Nuclear physics, Pion, Deuterium, Yield (chemistry), 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We present transverse momentum (p(T)) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at root s(NN)=200 GeV for four centrality classes. Nucleon-gold collisions were selected by tagging events in which a spectator nucleon was observed in one of two forward rapidity detectors. The spectra and yields were investigated as a function of the number of binary nucleon-nucleon collisions, nu, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that yield per nucleon-nucleon collision saturates with nu for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of p(T).
Published: 2008
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39. Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions atsNN=200GeV: Jet quenching and the response of partonic matter

Author: T. Hester, A. Deshpande, M. Grosse Perdekamp, S. Esumi, D. Winter, M. P. Comets, I. Younus, D. Yu Peressounko, S. Butsyk, V-N. Tram, J. T. Mitchell, R. Seidl, Vladislav Manko, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, A. Soldatov, Vladimir Samsonov, I. Otterlund, J. M. Burward-Hoy, M. Chiu, Motoi Inaba, H. Pei, T. A. Shibata, P. Tarján, M. Slunečka, Sergey Fokin, F. Matathias, Tamas Ferenc Csorgo, Kensuke Homma, W. C. Smith, S. Chernichenko, H. Lim, B. Bassalleck, M. Mitrovski, M. Konno, J. L. Nagle, M. Gonin, R. S. Towell, M. K. Lee, K. Ozawa, A. Kiss, Z. Yasin, Henner Buesching, C. L. Woody, I. Garishvili, Akio Kiyomichi, J. Gosset, R. Vértesi, Senta Greene, D. Kawall, D. Isenhower, A. Toia, Mate Csanad, M. Wysocki, J. P. Sullivan, K. Tanida, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, Y. Nakamiya, T. Horaguchi, Y. L. Yamaguchi, B. Komkov, C. Silvestre, I. Ravinovich, H. Pereira, O. Dietzsch, H. Valle, S. Y. Fung, V. I. Kochetkov, Norio Saito, M. A. L. Leite, Marcus Hohlmann, B. E. Norman, E. O'Brien, L. Mašek, S. Kelly, Marisilvia Donadelli, V. Bumazhnov, L. Tomášek, N. Kurihara, Charles Maguire, S. Leckey, J. Murata, S. F. Pate, J. L. Charvet, Andry Malala Rakotozafindrabe, V. S. Pantuev, G. Baksay, M. T. Bjorndal, Josh Moss, Y. Nagata, Julia Velkovska, M. Rosati, M. Harvey, N. N. Ajitanand, Jason Newby, Takahiro Nakamura, I. Tserruya, Yu. Efremenko, V. Singh, A. V. Kazantsev, Gerd Joachim Kunde, S. Bathe, S. S. Ryu, H. Al-Bataineh, Agneta Oskarsson, X. He, O. O. Omiwade, John Hill, X. R. Wang, David D'Enterria, T. E. Miller, E. T. Atomssa, I. Shein, E. Kistenev, J. L. Drachenberg, Bruno Espagnon, A. A. Vinogradov, Henrik Tydesjö, Susumu Oda, Y. Berdnikov, H. A. Gustafsson, C. Zhang, H. A. Torii, Junji Tojo, V. Peresedov, Y. Akiba, M. G. Hur, C. Y. Chi, P. Chung, R. P. Pisani, Y. Le Bornec, H. Harada, Toru Sugitate, L. D. Isenhower, S. Yokkaichi, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Jiangyong Jia, Y. Goto, S. P. Sorensen, M. Holmes, V. Babintsev, Dylan Walker, J. M. Heuser, T. Shohjoh, A. Durum, M. Issah, Youngil Kwon, V. Papavassiliou, Vaclav Vrba, Klaus Johannes Reygers, P. Mikeš, Sébastien Gadrat, G. S. Kyle, Nikolay Tyurin, M. N. Wagner, K. Okada, M. B. Deaton, B. Sahlmueller, H. En'yo, James Alexander, Anne Marie Sickles, R. Bennett, W. S. Emam, Robert F. Hobbs, E. J. Desmond, Viktor Riabov, K. O. Eyser, M. D. Malik, R. Averbeck, Byung-Sik Hong, K. Fujiwara, Alberto Baldisseri, M. Togawa, Ahmed Al-Jamel, P. Constantin, M. J. Leitch, Roy A. Lacey, Rushan Han, M. N. Hagiwara, François Fleuret, E. Vznuzdaev, B. Forestier, J. G. Lajoie, H. Masui, Y. Tanaka, A. K. Dubey, M. Finger, J. Park, T. Hachiya, A. A. Bickley, D. S. Brown, A. Bazilevsky, Philippe Rosnet, T. K. Shea, S. Batsouli, J. E. Frantz, S. N. White, Florian Bauer, I. J. Choi, A. Kravitz, H. Kanou, J. G. Boissevain, M. Naglis, Taku Gunji, H. Gong, J. Seele, Hiroaki Ohnishi, Masashi Kaneta, F. Kajihara, B. Love, D. E. Fields, Y. Tsuchimoto, Debashish Pal, B. V. Jacak, Alexandre Lebedev, Marie Germain, Herve Borel, D. M. Lee, S. Sawada, C. L. Silva, D. Lynch, F. Staley, L. Baksay, Saskia Mioduszewski, J. Ying, A. Franz, K. Nakano, A. Glenn, Yoichiro Fukao, I. E. Yushmanov, M. Ouchida, Alexei Khanzadeev, H. W. Van Hecke, M. McCumber, A. K. Purwar, N. Willis, K. Das, E. P. Hartouni, W. E. Sondheim, L. Aphecetche, E. Stenlund, Masayasu Ishihara, Hirohiko Sato, S. K. Tuli, M. C. McCain, C. Pinkenburg, H. Sakata, Susumu Sato, H. Delagrange, V. L. Rykov, T. Dahms, A. G. Litvinenko, P. A. Rukoyatkin, E. H. Kim, M. Stepanov, G. Roche, T. Ichihara, A. P.T. Palounek, J. Asai, Y. J. Mao, S. Kametani, G. R. Young, Matthew G. Reuter, Takahiro Fusayasu, Xingguo Li, A. Kozlov, O. Zaudtke, T. V. Moukhanova, I. D. Ojha, Alexander Malakhov, R. Seto, K. Haruna, Christophe Pierre Suire, Alexander Milov, J. H. Kang, J. S. Haggerty, D. Silvermyr, S. Zhou, M. Virius, A. Romana, Y. S. Kim, I. Nakagawa, Xiao-yan Li, L. S. Zolin, W. J. Park, V. Dzhordzhadze, S. Takagi, Johannes Peter Wessels, Shingo Sakai, P. D. Barnes, A. Yanovich, T. L. Thomas, T. C. Awes, T. Liška, K. N. Barish, A. Hadj Henni, Y. Cobigo, K. S. Sim, Y. Watanabe, O. Drapier, Frank Ellinghaus, J. Jin, H. Hiejima, E. R. Kinney, Y. S. Lai, D. P. Morrison, K. Imai, Jun Kikuchi, S. Campbell, Ryugo S. Hayano, K. Boyle, Wei Xie, E. M. Takagui, Jan Rak, R. Granier de Cassagnac, A. Adare, V. E. Semenov, J. Zimányi, Y. Riabov, Kenta Shigaki, C. P. Singh, B. M. Johnson, M. Nguyen, Tatsuya Chujo, A. S. Nyanin, A. Isupov, K. Dehmelt, Jen-Chieh Peng, J. Sziklai, Brian Cole, Dong Jo Kim, Osamu Jinnouchi, Minghui Liu, Kenneth Francis Read, I. V. Sourikova, Tadaaki Isobe, J. S. Chai, P. L. McGaughey, Steven E. Skutnik, H. Qu, Hideki Hamagaki, K. Aoki, G. David, N. Grau, K. Shoji, P. W. Stankus, S. Belikov, K. S. Joo, C. R. Cleven, C. Haegemann, Y. Inoue, P. J. Kroon, Dong-Hun Kim, D. Sharma, B. Azmoun, A. Král, M. J. Kweon, Maya Hachiya Shimomura, Y. I. Makdisi, M. J. Tannenbaum, M. Oka, D. Mukhopadhyay, S. Rembeczki, D. Bucher, J. Chiba, G. C. Mishra, A. Dion, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, T. Tabaru, Atsushi Taketani, A. Enokizono, S. H. Aronson, W. Holzmann, Tae-Yeon Lee, Martin Purschke, F. Gastineau, D. Kotchetkov, A. Morreale, Z. Fraenkel, J. Egdemir, Jason Kamin, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, A. Churyn, D. Jouan, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, L. Kochenda, T. Kawagishi, S. Afanasiev, A. Ster, R. Pak, N. Kamihara, R. Armendariz, Kazuyoshi Kurita, A. Drees, J. Kubart, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, Eva Haslum, B. Lenzi, M. L. Brooks, A. Shevel, and R. A. Soltz
Subjects: Physics, Quenching, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Radiation, 01 natural sciences, Nuclear physics, Distribution (mathematics), Shoulder region, 0103 physical sciences, Transverse momentum, Spectral slope, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Jet quenching
Abstract: Azimuthal angle (Delta phi) correlations are presented for charged hadrons from dijets for 0.4 < p(T)< 10 GeV/c in Au+Au collisions at root s(NN)=200 GeV. With increasing p(T), the away-side distribution evolves from a broad and relatively flat shape to a concave shape, then to a convex shape. Comparisons to p+p data suggest that the away-side can be divided into a partially suppressed "head" region centered at Delta phi similar to pi and an enhanced "shoulder" region centered at Delta phi similar to pi +/- 1.1. The p(T) spectrum for the head region softens toward central collisions, consistent with the onset of jet quenching. The spectral slope for the shoulder region is independent of centrality and trigger p(T), which offers constraints on energy transport mechanisms and suggests that it contains the medium response to energetic jets.
Published: 2008
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40. Measurement of single muons at forward rapidity inp+pcollisions ats=200 GeVand implications for charm production

Author: R. du Rietz, Josh Moss, M. Tamai, B. D. Fox, C. L. Silva, S. Afanasiev, E. Kistenev, A. Ster, J. Chiba, Masayasu Ishihara, Susumu Sato, M. Muniruzzaman, F. Staley, M. Sakai, J. T. Mitchell, Vladislav Manko, M. D. Marx, T. Chujo, X. Camard, A. Parmar, Christine Angela Aidala, J. S. Chai, Norio Saito, F. Messer, D. Hornback, G. C. Mishra, Takao Sakaguchi, C. Klein-Boesing, I. Tserruya, Yu. Efremenko, R. A. Soltz, M. Grosse Perdekamp, K. Tanida, V. I. Kochetkov, M. Heffner, O. Dietzsch, A. D. Frawley, V. Singh, G. B. Kim, D. Koehler, V. S. Pantuev, L. Aphecetche, S. Kametani, P. L. McGaughey, G. Gogiberidze, M. Harvey, S. Bathe, S. H. Aronson, K. A. Drees, Kensuke Homma, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, Hirohiko Sato, E. J. Desmond, V. Bumazhnov, Dipanwita Dutta, Junji Tojo, S. K. Tuli, A. G. Hansen, Shingo Sakai, W. Holzmann, Alberto Baldisseri, Jen-Chieh Peng, M. Hibino, Y. Tanaka, T. K. Shea, J. M. Burward-Hoy, J. Park, J. E. Frantz, J. H. Kang, T. L. Thomas, J. S. Haggerty, Julia Velkovska, A. Romana, R. S. Towell, V. Babintsev, K. Okada, Y. I. Makdisi, Y. Watanabe, Hiroaki Ohnishi, B. Khachaturov, J. B. Choi, M. Chiu, Ajit Kumar Mohanty, T. Matsumoto, Dong Jo Kim, Osamu Jinnouchi, H. En'yo, P. Constantin, M. J. Leitch, David Olle Rickard Silvermyr, N. N. Ajitanand, J. Milan, Herve Borel, Ryugo S. Hayano, T. A. Shibata, A. Soldatov, R. Amirikas, Y. Riabov, M. Rosati, S. Garpman, K. Kiyoyama, M. Velkovsky, H. Tsuruoka, I. E. Yushmanov, Alexander Milov, Kenta Shigaki, A. Glenn, Shih-Chang Lee, E. H. Kim, W. C. Chang, E. P. Hartouni, B. K. Nandi, O. Drapier, H. A. Gustafsson, Joakim Nystrand, M. J. Tannenbaum, D. P. Morrison, David D'Enterria, V. E. Semenov, Minghui Liu, H. J. Kim, V. V. Ikonnikov, A. S. Nyanin, Takahiro Nakamura, M. Issah, A. A. Vinogradov, Henrik Tydesjö, Y. J. Kwon, Roy A. Lacey, D. Isenhower, K. S. Sim, R. P. Pisani, P. Tarján, Sean A. Kelly, D. Bucher, Jiangyong Jia, Y. Goto, R. E. Mischke, C. Zhang, L. Villatte, M. E. Sadler, Jason Newby, L. Sanfratello, Viktor Veszpremi, E. Vznuzdaev, S. Borenstein, German Martinez, Kenneth Francis Read, S. Butsyk, N. Hayashi, J. Murata, Alexei Khanzadeev, Nikolay Tyurin, A. Durum, C. L. Woody, T. Shiina, N. Bruner, A. Devismes, E. Stenlund, J. G. Boissevain, Vladimir Samsonov, I. Otterlund, S. S. Adler, G. S. Kyle, James Alexander, R. Azmoun, Senta Greene, K. Katou, H. Buesching, Y. Liu, Viktor Riabov, C. Y. Chi, M. Nara, H. Delagrange, D. S. Brown, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Wei Xie, Xingguo Li, Philippe Rosnet, N. Kamihara, A. Kiyomichi, Alexandre Lebedev, E. O'Brien, D. Mukhopadhyay, C. Pinkenburg, A. Deshpande, M. Kopytine, S. Batsouli, S. Zhou, J. L. Nagle, T. C. Awes, Y. Cobigo, Kyoichiro Ozawa, Jun Kikuchi, I. V. Sourikova, H. Torii, D. M. Lee, M. Stepanov, I. Ravinovich, D. E. Fields, S. P. Sorensen, B. V. Jacak, F. Plasil, G. Roche, T. Kohama, F. Matathias, Peter M. Nilsson, K. Imai, A. K. Purwar, S. S. Ryu, Y. Yang, J. Gosset, C. P. Singh, J. P. Sullivan, J. G. Lajoie, T. Hachiya, A. P.T. Palounek, T. E. Miller, R. Santo, I. J. Choi, A. Enokizono, S. Esumi, V. Ladygin, M. Gonin, Jan Rak, B. M. Johnson, K. Kurita, S. Yokkaichi, M. Sivertz, J. M. Heuser, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, W. Guryn, Sergey Fokin, S. F. Pate, R. Granier de Cassagnac, A. Hoover, A. Isupov, A. Drees, X. R. Wang, Brian Cole, T. Peitzmann, V. Papavassiliou, Saskia Mioduszewski, S. Sawada, J. D. Tepe, A. Franz, Yves Roland Schutz, S. S. Kapoor, Hideki Hamagaki, G. David, D. Pal, G. R. Young, E. M. Takagui, C. H. Kuberg, S. P. Stoll, G. Bunce, D. Jouan, M. A. Volkov, C. A. Ogilvie, N. Grau, T. K. Hemmick, Yasuo Miake, L. Kochenda, Y. Kuroki, W. Y. Jang, P. W. Stankus, K. N. Barish, Do-Won Kim, P. J. Kroon, Dong-Hun Kim, M. Ono, M. L. Brooks, X. He, V. Peresedov, H. Masui, A. G. Litvinenko, A. Kozlov, R. Seto, Martin Purschke, D. Kotchetkov, S. Bhagavatula, Z. Fraenkel, R. K. Choudhury, S. C. Johnson, Y. J. Mao, M. J. Kweon, Atsushi Taketani, V.A. Onuchin, S. Belikov, K. S. Joo, K. El Chenawi, M. R. Shaw, P. Chand, H. Kobayashi, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, S. Y. Fung, H. W. Van Hecke, John Hill, K. Oyama, Toru Sugitate, François Fleuret, T. Ichihara, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, L. S. Zolin, P. D. Barnes, A. Yanovich, S. N. White, W. E. Sondheim, Charles Maguire, and S. Leckey
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Perturbative QCD, 7. Clean energy, 01 natural sciences, Particle identification, Charm quark, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Muon production at forward rapidity (1.5
Published: 2007
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41. Detailed study of high-pTneutral pion suppression and azimuthal anisotropy inAu+Aucollisions atsNN=200GeV

Author: Shih-Chang Lee, S. Afanasiev, K. S. Sim, A. Ster, V. S. Pantuev, M. Harvey, J. S. Chai, E. H. Kim, Junji Tojo, E. J. Desmond, T. Ichihara, F. Messer, M. Heffner, S. S. Adler, G. S. Kyle, P. L. McGaughey, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, M. Rosati, T. L. Thomas, K. Imai, James Alexander, M. Hibino, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, K. Okada, J. Park, Alexandre Lebedev, J. M. Burward-Hoy, S. C. Johnson, K. Tanida, I. D. Ojha, Alexander Malakhov, D. M. Lee, S. Esumi, M. Velkovsky, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, N. Kamihara, R. A. Soltz, H. Borel, Y. J. Mao, M. J. Kweon, H. En'yo, P. Constantin, Norio Saito, M. J. Leitch, F. Matathias, N. Grau, Jen-Chieh Peng, J. Chiba, H. Tsuruoka, M. Sakai, M. Grosse Perdekamp, L. S. Zolin, J. G. Boissevain, A. Drees, A. A. Vinogradov, Henrik Tydesjö, P. D. Barnes, Y. Berndnikov, Ryugo S. Hayano, G. C. Mishra, P. W. Stankus, K. Katou, Jiangyong Jia, A. Yanovich, Y. Yang, C. P. Singh, R. Azmoun, V. I. Kochetkov, M. A. Volkov, K. Kiyoyama, V. Babinstev, B. K. Nandi, Y. Goto, W. A. Zajc, Takao Sakaguchi, C. Klein-Boesing, S. Y. Fung, Y. J. Kwon, A. Kiyomichi, C. Pinkenburg, Dong Jo Kim, Osamu Jinnouchi, Jan Rak, G. Gogiberidze, C. A. Ogilvie, Y. Tanaka, T. K. Shea, L. Sanfratello, D. E. Fields, B. V. Jacak, T. K. Hemmick, B. D. Fox, B. M. Johnson, A. D. Frawley, V. Baublis, A. Denisov, V. Cianciolo, D. Isenhower, Y. Riabov, S. Borenstein, P. Chand, A. Isupov, W. Guryn, David Olle Rickard Silvermyr, D. Mukhopadhyay, John Hill, K. Oyama, R. Granier de Cassagnac, M. Stepanov, G. Roche, I. Tserruya, R. Amirikas, I. E. Yushmanov, Yasuo Miake, J. T. Mitchell, Yu. Efremenko, L. Kochenda, B. Khachaturov, A. K. Purwar, Sergey Fokin, S. H. Aronson, Toru Sugitate, Do-Won Kim, P. J. Kroon, Y. Cobigo, J. Gosset, J. P. Sullivan, German Martinez, V. Singh, Y. Kuroki, W. Y. Jang, Vladislav Manko, J. E. Frantz, T. Matsumoto, Dong-Hun Kim, Brian Cole, R. S. Towell, Kenta Shigaki, François Fleuret, G. B. Kim, D. Koehler, W. Holzmann, M. D. Marx, A. Hoover, Y. I. Makdisi, S. Garpman, P. Tarján, Sean A. Kelly, Viktor Veszpremi, S. N. White, S. P. Stoll, O. Dietzsch, Atsushi Taketani, Joakim Nystrand, T. Chujo, V.A. Onuchin, S. Belikov, K. S. Joo, K. A. Drees, Hirohiko Sato, G. Bunce, S. F. Pate, N. N. Ajitanand, H. A. Gustafsson, C. L. Silva, A. S. Nyanin, A. Glenn, N. Hayashi, S. Yokkaichi, J. M. Heuser, S. K. Tuli, X. Camard, Takahiro Nakamura, T. E. Miller, Dipanwita Dutta, D. Jouan, R. E. Mischke, C. Zhang, X. R. Wang, Hideki Hamagaki, G. David, W. E. Sondheim, G. R. Young, C. Y. Chi, S. Kametani, Alexei Khanzadeev, A. Parmar, Alexander Milov, I. Ravinovich, H. Kobayashi, Masayasu Ishihara, H. J. Kim, C. H. Kuberg, M. E. Sadler, N. Bruner, E. Stenlund, Agneta Oskarsson, Julia Velkovska, A. Durum, V. Papavassiliou, F. Plasil, J. H. Kang, J. S. Haggerty, A. Romana, R. Santo, Senta Greene, O. Drapier, Christine Angela Aidala, Susumu Sato, L. Villatte, A. Enokizono, M. Muniruzzaman, Y. Akiba, D. S. Brown, M. Nara, T. Peitzmann, M. J. Tannenbaum, Viktor Riabov, Saskia Mioduszewski, S. Bathe, S. S. Ryu, D. P. Morrison, J. B. Choi, S. Nagamiya, Kazuhiro Tanaka, Charles Maguire, F. Staley, S. Leckey, Klaus Johannes Reygers, Yves Roland Schutz, Kensuke Homma, V. E. Semenov, S. Batsouli, S. Sawada, J. D. Tepe, R. du Rietz, Josh Moss, A. Franz, E. O'Brien, S. Zhou, S. S. Kapoor, E. Melnikov, V. V. Ikonnikov, D. Pal, E. P. Hartouni, M. Tamai, E. Kistenev, S. Chernichenko, K. El Chenawi, M. R. Shaw, E. M. Takagui, H. Lim, David D'Enterria, A. Devismes, B. Bassalleck, F. Mühlbacher, Y. Watanabe, L. Ewell, Martin Purschke, D. Bucher, R. P. Pisani, A. P.T. Palounek, H. W. Van Hecke, H. Delagrange, Jason Newby, A. G. Hansen, Shingo Sakai, D. Kotchetkov, S. Bhagavatula, Nikolay Tyurin, Z. Fraenkel, M. Kopytine, J. Murata, C. L. Woody, A. Baldisseri, A. Soldatov, R. K. Choudhury, I. V. Sourikova, H. Torii, Hiroaki Ohnishi, J. Milan, X. He, S. Butsyk, V. Peresedov, Vladimir Samsonov, I. Otterlund, H. Buesching, Xingguo Li, V. Ladygin, M. Gonin, J. L. Nagle, T. Kohama, V. Bumazhnov, K. Kurita, H. Masui, M. Sivertz, W. C. Chang, Roy A. Lacey, S. P. Sorensen, Peter M. Nilsson, A. G. Litvinenko, J. G. Lajoie, T. Hachiya, I. J. Choi, A. Kozlov, R. Seto, K. N. Barish, M. Ono, Wei Xie, M. L. Brooks, A. Deshpande, M. Issah, E. Vznuzdaev, T. C. Awes, Kyoichiro Ozawa, T. Shiina, Jun Kikuchi, Yi Liu, L. Aphecetche, Minghui Liu, and Kenneth Francis Read
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Plane (geometry), media_common.quotation_subject, Parton, 01 natural sciences, Asymmetry, Delta baryon, Nuclear physics, Pion, Yield (chemistry), 0103 physical sciences, Nuclear Experiment, 010306 general physics, Anisotropy, Scaling, media_common
Abstract: Measurements of neutral pion (pi(0)) production at midrapidity in root s(NN)=200 GeV Au+Au collisions as a function of transverse momentum, p(T), collision centrality, and angle with respect to reaction plane are presented. The data represent the final pi(0) results from the PHENIX experiment for the first RHIC Au+Au run at design center-of-mass energy. They include additional data obtained using the PHENIX Level-2 trigger with more than a factor of 3 increase in statistics over previously published results for p(T)>6 GeV/c. We evaluate the suppression in the yield of high-p(T) pi(0)'s relative to pointlike scaling expectations using the nuclear modification factor R-AA. We present the p(T) dependence of R-AA for nine bins in collision centrality. We separately integrate R-AA over larger p(T) bins to show more precisely the centrality dependence of the high-p(T) suppression. We then evaluate the dependence of the high-p(T) suppression on the emission angle Delta phi of the pions with respect to event reaction plane for seven bins in collision centrality. We show that the yields of high-p(T) pi(0)'s vary strongly with Delta phi, consistent with prior measurements 1,2. We show that this variation persists in the most peripheral bin accessible in this analysis. For the peripheral bins we observe no suppression for neutral pions produced aligned with the reaction plane, whereas the yield of pi(0)'s produced perpendicular to the reaction plane is suppressed by a factor of similar to 2. We analyze the combined centrality and Delta phi dependence of the pi(0) suppression in different p(T) bins using different possible descriptions of parton energy loss dependence on jet path-length averages to determine whether a single geometric picture can explain the observed suppression pattern.
Published: 2007
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42. Measurement of density correlations in pseudorapidity via charged particle multiplicity fluctuations in Au+Au collisions atsNN=200GeV

Author: M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, Y. Yang, C. P. Singh, Hiroaki Ohnishi, N. N. Ajitanand, B. K. Nandi, Jen-Chieh Peng, S. Kametani, Takahiro Nakamura, B. M. Johnson, J. Milan, V.A. Onuchin, M. E. Sadler, D. Isenhower, A. Toia, H. J. Kim, I. V. Sourikova, H. Torii, A. Durum, J. T. Mitchell, D. E. Fields, B. V. Jacak, S. Butsyk, Vladimir Samsonov, Yi Liu, A. K. Purwar, A. Isupov, D. S. Brown, I. Otterlund, German Martinez, R. Azmoun, J. H. Kang, J. S. Haggerty, A. Romana, Norio Saito, R. A. Soltz, H. Borel, David D'Enterria, Brian Cole, L. Villatte, Do-Won Kim, P. J. Kroon, Vladislav Manko, Dong Jo Kim, Alexei Khanzadeev, S. Belikov, K. S. Joo, Osamu Jinnouchi, Dong-Hun Kim, S. Batsouli, L. Aphecetche, M. D. Marx, M. Grosse Perdekamp, N. Bruner, E. Stenlund, D. Mukhopadhyay, S. P. Stoll, Charles Maguire, S. Leckey, A. Devismes, R. P. Pisani, O. Dietzsch, B. D. Fox, V. Babintsev, J. L. Nagle, A. G. Hansen, H. Buesching, K. N. Barish, K. Tanida, T. Chujo, T. Peitzmann, Saskia Mioduszewski, Y. Cobigo, V. I. Kochetkov, G. Bunce, I. Ravinovich, I. Tserruya, Yu. Efremenko, X. Camard, Shingo Sakai, R. du Rietz, Josh Moss, J. Gosset, E. H. Kim, M. Ono, M. Tamai, Nikolay Tyurin, H. Kobayashi, A. Parmar, J. Chiba, F. Plasil, V. Singh, Dipanwita Dutta, M. Sakai, H. Delagrange, D. Jouan, J. P. Sullivan, A. P.T. Palounek, T. Kohama, E. Kistenev, Xingguo Li, T. L. Thomas, Christine Angela Aidala, Yves Roland Schutz, David Olle Rickard Silvermyr, G. B. Kim, D. Koehler, K. A. Drees, Youngil Kwon, G. R. Young, S. S. Ryu, S. Bathe, Julia Velkovska, S. Esumi, Agneta Oskarsson, M. Kopytine, D. Pal, S. Zhou, B. Khachaturov, G. C. Mishra, Ryugo S. Hayano, M. L. Brooks, Y. Riabov, Hideki Hamagaki, G. David, C. H. Kuberg, Kenta Shigaki, E. M. Takagui, Kensuke Homma, A. Baldisseri, N. Kamihara, V. S. Pantuev, S. Yokkaichi, Y. Berdnikov, J. M. Heuser, W. A. Zajc, X. He, R. S. Towell, E. Melnikov, S. S. Adler, G. S. Kyle, V. Bumazhnov, V. Baublis, M. Rosati, T. Matsumoto, A. S. Nyanin, A. Denisov, V. Cianciolo, S. Chernichenko, Y. Akiba, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, Sergey Fokin, S. P. Sorensen, P. Tarján, Sean A. Kelly, N. Grau, Peter M. Nilsson, F. Matathias, M. Harvey, A. Drees, J. E. Frantz, V. Peresedov, N. Hayashi, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, A. Hoover, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, Hirohiko Sato, M. Velkovsky, Viktor Veszpremi, S. Nagamiya, S. Garpman, Philippe Rosnet, Kazuhiro Tanaka, Klaus Johannes Reygers, J. B. Choi, A. A. Vinogradov, Henrik Tydesjö, C. Y. Chi, Y. Tanaka, Alexandre Lebedev, T. E. Miller, W. C. Chang, Shih-Chang Lee, K. S. Sim, H. Masui, T. K. Shea, P. W. Stankus, Junji Tojo, H. A. Gustafsson, S. K. Tuli, Y. Watanabe, D. M. Lee, M. A. Volkov, Joakim Nystrand, R. Santo, Roy A. Lacey, A. Enokizono, R. E. Mischke, Jiangyong Jia, Y. Goto, S. H. Aronson, J. G. Lajoie, T. Hachiya, C. Zhang, A. Glenn, Jason Newby, Wei Xie, K. Okada, H. En'yo, P. Constantin, A. Deshpande, Senta Greene, J. Murata, M. Nara, I. J. Choi, V. Ladygin, M. Gonin, C. A. Ogilvie, T. K. Hemmick, K. El Chenawi, M. R. Shaw, S. F. Pate, W. Holzmann, C. L. Silva, E. P. Hartouni, A. G. Litvinenko, Yasuo Miake, Y. I. Makdisi, M. J. Leitch, E. O'Brien, J. G. Boissevain, H. Tsuruoka, K. Kurita, S. Afanasiev, M. Sivertz, L. Kochenda, X. R. Wang, Masayasu Ishihara, K. Katou, A. Kozlov, K. Imai, E. J. Desmond, C. L. Woody, Alexander Milov, A. Ster, Y. Kuroki, W. Y. Jang, R. Seto, M. Hibino, J. Park, A. Kiyomichi, C. Pinkenburg, Susumu Sato, M. Muniruzzaman, P. Chand, M. J. Tannenbaum, F. Staley, Jan Rak, W. Guryn, V. Papavassiliou, M. Stepanov, G. Roche, Martin Purschke, V. V. Ikonnikov, O. Drapier, R. Amirikas, Minghui Liu, R. Granier de Cassagnac, I. E. Yushmanov, D. Bucher, L. Sanfratello, S. Borenstein, M. Issah, K. Ozawa, D. P. Morrison, E. Vznuzdaev, A. Soldatov, T. Shiina, H. W. Van Hecke, V. E. Semenov, S. Sawada, J. D. Tepe, A. Franz, F. Messer, S. S. Kapoor, M. Heffner, D. Kotchetkov, Kenneth Francis Read, G. Gogiberidze, S. Bhagavatula, Z. Fraenkel, R. K. Choudhury, S. C. Johnson, J. S. Chai, Y. J. Mao, M. J. Kweon, P. L. McGaughey, J. M. Burward-Hoy, Atsushi Taketani, S. Y. Fung, T. C. Awes, Jun Kikuchi, John Hill, K. Oyama, Toru Sugitate, François Fleuret, S. N. White, W. E. Sondheim, T. Ichihara, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, Viktor Riabov, I. D. Ojha, Alexander Malakhov, L. S. Zolin, P. D. Barnes, and A. Yanovich
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Multiplicity (mathematics), Nuclear matter, 01 natural sciences, Charged particle, Nuclear physics, Strange matter, Critical point (thermodynamics), Pseudorapidity, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: Longitudinal density correlations of produced matter in Au+Au collisions at sqrt(s{sub NN})=200 GeV have been measured from the inclusive charged particle distributions as a function of pseudorapidity window sizes. The extracted {alpha}{xi} parameter, related to the susceptibility of the density fluctuations in the long-wavelength limit, exhibits a nonmonotonic behavior as a function of the number of participant nucleons, N{sub part}. A local maximum is seen at N{sub part}{approx}90, with corresponding energy density based on the Bjorken picture of {epsilon}{sub Bj}{tau}{approx}2.4 GeV/(fm{sup 2}c) with a transverse area size of 60 fm2. This behavior may suggest a critical phase boundary based on the Ginzburg-Landau framework.
Published: 2007
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43. Elliptic Flow forϕMesons and (Anti)deuterons inAu+AuCollisions atsNN=200 GeV

Author: S. Takagi, K. Tanida, C. P. Singh, S. Bathe, K. N. Barish, H. Pei, Agneta Oskarsson, J. Chiba, V. I. Kochetkov, B. M. Johnson, Hiroaki Ohnishi, M. Rosati, Y. Berdnikov, Y. Akiba, G. C. Mishra, N. Kamihara, A. Isupov, C. Suire, Takao Sakaguchi, N. Grau, T. Ichihara, F. Matathias, M. Chiu, S. F. Pate, R. Armendariz, S. Nagamiya, Kazuhiro Tanaka, K. Shoji, C. Klein-Boesing, J. Murata, X. R. Wang, Kazuyoshi Kurita, T. A. Shibata, J. Sziklai, M. Wysocki, G. S. Kyle, Brian Cole, Klaus Johannes Reygers, Matthew G. Reuter, N. Willis, James Alexander, V. Papavassiliou, A. Drees, Sébastien Gadrat, Gerd Joachim Kunde, A. D. Frawley, T. Tabaru, V. Bumazhnov, M. P. Comets, J. M. Burward-Hoy, P. W. Stankus, P. Tarján, S. H. Aronson, Robert F. Hobbs, A. A. Vinogradov, Henrik Tydesjö, R. Averbeck, Byung-Sik Hong, I. D. Ojha, Alexander Malakhov, M. L. Brooks, I. Shein, D. E. Fields, D. Isenhower, B. V. Jacak, S. Esumi, Debashish Pal, S. Sawada, D. Silvermyr, A. Franz, A. Bazilevsky, W. Holzmann, Jiangyong Jia, Y. Goto, B. Espagnon, Philippe Rosnet, Steven E. Skutnik, M. T. Bjorndal, S. Kametani, Saskia Mioduszewski, L. S. Zolin, W. C. Smith, W. J. Park, Alexandre Lebedev, X. He, Maya Hachiya Shimomura, A. Kiss, D. M. Lee, Y. I. Makdisi, W. A. Zajc, O. O. Omiwade, Tadaaki Isobe, A. K. Purwar, J. S. Chai, J. Egdemir, J. H. Kang, J. S. Haggerty, A. Romana, P. D. Barnes, A. Yanovich, H. Qu, V. Baublis, I. Tserruya, V. Peresedov, Henner Buesching, Xingguo Li, Yu. Efremenko, S. Y. Fung, A. Denisov, V. Cianciolo, E. H. Kim, S. P. Stoll, J. T. Mitchell, P. L. McGaughey, S. S.E. Rosendahl, Hideki Hamagaki, K. Aoki, Taku Gunji, M. K. Lee, K. Ozawa, C. L. Woody, Y. Tanaka, Senta Greene, G. Bunce, J. Jin, Youngil Kwon, F. Kajihara, E. M. Takagui, G. David, M. J. Tannenbaum, Sergey Fokin, T. K. Shea, Shingo Sakai, Vladislav Manko, V-N. Tram, Roy A. Lacey, R. S. Towell, Akio Kiyomichi, B. E. Norman, John Hill, V. Singh, T. Horaguchi, H. Masui, A. K. Dubey, D. Jouan, M. N. Hagiwara, E. O'Brien, H. Delagrange, D. Mukhopadhyay, S. Kelly, Anne Marie Sickles, H. A. Torii, O. Dietzsch, N. Kurihara, Toru Sugitate, L. D. Isenhower, D. Bucher, R. A. Soltz, H. Borel, C. R. Cleven, H. Valle, P. J. Kroon, M. Grosse Perdekamp, N. N. Ajitanand, S. Butsyk, C. A. Ogilvie, Minghui Liu, Motoi Inaba, Charles Maguire, S. Leckey, Marie Germain, Mate Csanad, T. K. Hemmick, V. S. Pantuev, Yasuo Miake, M. G. Hur, C. Y. Chi, Kenneth Francis Read, H. A. Gustafsson, M. Harvey, A. Baldisseri, Vladimir Samsonov, J. G. Boissevain, I. Otterlund, C. Vale, Julia Velkovska, B. Komkov, Takahiro Nakamura, K. Das, Y. S. Kim, H. W. Vanhecke, Christine Angela Aidala, A. G. Litvinenko, M. Naglis, Josh Moss, Masashi Kaneta, A. V. Kazantsev, François Fleuret, B. Forestier, L. Kochenda, C. L. Silva, Junji Tojo, C. Zhang, I. V. Sourikova, Norio Saito, E. P. Hartouni, T. L. Thomas, Hirohiko Sato, M. A. L. Leite, T. Shohjoh, E. Kistenev, T. Kawagishi, S. N. White, A. Kozlov, S. K. Tuli, A. Durum, C. Pinkenburg, K. Okada, B. Sahlmueller, David D'Enterria, R. Seto, Tamas Ferenc Csorgo, Kensuke Homma, Ryugo S. Hayano, D. Winter, K. Haruna, D. Yu Peressounko, Viktor Riabov, J. L. Nagle, Yoichiro Fukao, Y. Riabov, D. S. Brown, G. R. Young, H. Harada, H. En'yo, T. C. Awes, P. Constantin, M. J. Leitch, Jen-Chieh Peng, Kenta Shigaki, T. E. Miller, S. Chernichenko, H. Lim, M. Nguyen, Masayasu Ishihara, V. Dzhordzhadze, M. Stepanov, G. Roche, S. Batsouli, B. Bassalleck, A. S. Nyanin, W. E. Sondheim, A. Enokizono, R. P. Pisani, Nikolay Tyurin, M. Konno, V. Babintsev, P. A. Rukoyatkin, Jan Rak, Dong Jo Kim, M. N. Wagner, Osamu Jinnouchi, M. C. McCain, R. Granier de Cassagnac, J. Gosset, J. P. Sullivan, A. P.T. Palounek, Susumu Sato, M. Holmes, Alexander Milov, O. Drapier, K. S. Sim, F. Staley, Y. Watanabe, E. R. Kinney, D. P. Morrison, S. Campbell, V. E. Semenov, H. Hiejima, J. Zimányi, Tatsuya Chujo, K. Imai, A. Deshpande, S. Yokkaichi, J. M. Heuser, I. Younus, A. Soldatov, B. Azmoun, M. J. Kweon, Y. Le Bornec, A. Dion, Atsushi Taketani, K. Hasuko, Martin Purschke, F. Gastineau, Hiroyuki Okada, Joakim Nystrand, Eva Haslum, D. Kotchetkov, S. Afanasiev, A. Ster, L. Aphecetche, Z. Fraenkel, M. Heffner, A. Taranenko, Johannes Peter Wessels, M. Issah, M. D. Malik, E. Vznuzdaev, S. Belikov, K. S. Joo, E. J. Desmond, A. Hadj Henni, M. Togawa, J. Park, Florian Bauer, K. Boyle, Wei Xie, Y. Tsuchimoto, D. Sharma, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, T. V. Moukhanova, R. Vértesi, Jason Newby, M. Gonin, H. Pereira, J. L. Drachenberg, S. P. Sorensen, J. G. Lajoie, T. Hachiya, I. J. Choi, J. E. Frantz, A. Glenn, V. L. Rykov, T. Dahms, I. Ravinovich, Y. Nagata, S. S. Ryu, R. Bennett, Ahmed Al-Jamel, O. Zaudtke, and Y. Cobigo
Subjects: Physics, Quark, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, High Energy Physics::Phenomenology, Elliptic flow, Hadron, General Physics and Astronomy, Constituent quark, 01 natural sciences, Nuclear physics, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Scaling, Bar (unit)
Abstract: Differential elliptic flow (v(2)) for phi mesons and (anti)deuterons ((d) over bar )d is measured for Au + Au collisions at root s(NN) = 200 GeV. The v(2) for phi mesons follows the trend of lighter pi(+/-) and K-+/- mesons, suggesting that ordinary hadrons interacting with standard hadronic cross sections are not the primary driver for elliptic flow development. The v(2) values for ((d) over bar )d suggest that elliptic flow is additive for composite particles. This further validation of the universal scaling of v(2) per constituent quark for baryons and mesons suggests that partonic collectivity dominates the transverse expansion dynamics.
Published: 2007
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44. System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes inCu+CuandAu+AuCollisions atsNN=200and 62.4 GeV

Author: A. Shevel, H. Pei, Robert F. Hobbs, S. Belikov, K. S. Joo, I. V. Sourikova, H. Torii, Debashish Pal, P. Tarján, Sean A. Kelly, M. A. Volkov, S. Takagi, H. J. Kim, S. Sawada, J. Ying, A. Franz, M. Ouchida, L. Tomášek, J. Asai, K. O. Eyser, V. S. Pantuev, Viktor Veszpremi, I. Ravinovich, A. G. Hansen, Shingo Sakai, B. Espagnon, S. Y. Fung, M. Harvey, K. Fujiwara, K. N. Barish, R. S. Towell, I. Tserruya, T. L. Thomas, C. A. Ogilvie, Y. Nagata, Ryugo S. Hayano, Y. Riabov, T. K. Hemmick, D. Sharma, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Yu. Efremenko, Maya Hachiya Shimomura, V. Singh, Yasuo Miake, I. Garishvili, Akio Kiyomichi, Junji Tojo, S. F. Pate, Tae-Yeon Lee, Martin Purschke, F. Gastineau, N. N. Ajitanand, Hiroaki Ohnishi, B. D. Fox, Mate Csanad, J. L. Charvet, S. S. Ryu, Y. I. Makdisi, Anne Marie Sickles, G. B. Kim, T. J. Uam, Senta Greene, K. Okada, H. Al-Bataineh, X. R. Wang, J. G. Boissevain, S. Esumi, M. B. Deaton, N. Kurihara, E. J. Desmond, L. Kochenda, Jean-Pierre Cussonneau, Masashi Kaneta, John Hill, K. Oyama, Steven E. Skutnik, D. Kotchetkov, M. L. Brooks, F. Matathias, M. Togawa, B. Sahlmueller, H. En'yo, J. M. Qualls, P. Constantin, M. J. Leitch, B. E. Norman, Takahiro Nakamura, E. H. Kim, K. Katou, Toru Sugitate, A. Morreale, M. J. Tannenbaum, B. Love, Kensuke Homma, T. Kawagishi, Marie Germain, E. O'Brien, Z. Fraenkel, M. Naglis, V. V. Ikonnikov, G. R. Young, V. Papavassiliou, C. L. Silva, T. E. Miller, D. Mukhopadhyay, Sébastien Gadrat, S. Rembeczki, David D'Enterria, R. K. Choudhury, A. G. Litvinenko, C. Silvestre, Hirohiko Sato, D. Bucher, J. Park, Florian Bauer, R. A. Soltz, Susumu Oda, O. Dietzsch, H. Valle, M. G. Hur, C. Y. Chi, Y. Tanaka, T. K. Shea, E. T. Atomssa, C. Pinkenburg, D. Y.-U. Peressounko, R. Pak, S. K. Tuli, T. Shohjoh, R. Santo, A. Durum, S. C. Johnson, S. Chernichenko, Masayasu Ishihara, B. Azmoun, A. Král, Dipanwita Dutta, M. J. Kweon, H. Lim, B. Bassalleck, Ferenc Deák, M. Grosse Perdekamp, N. Kamihara, Jan Rak, J. M. Burward-Hoy, M. Stepanov, G. Roche, R. Armendariz, A. Kozlov, R. Seto, K. Haruna, C. H. Kuberg, J. Chiba, G. C. Mishra, W. A. Zajc, Takao Sakaguchi, V. Baublis, A. Denisov, V. Cianciolo, Xiao-yan Li, R. Bennett, Xingguo Li, Ahmed Al-Jamel, M. Finger, Susumu Sato, C. Klein-Boesing, H. Qu, J. E. Frantz, M. Gonin, P. Chung, R. P. Pisani, Y. Tsuchimoto, L. Baksay, K. Das, M. Mitrovski, R. Granier de Cassagnac, A. Adare, V.N. Penev, M. Muniruzzaman, A. D. Frawley, F. Staley, T. Tabaru, Sergey Fokin, Y. L. Yamaguchi, B. Komkov, Herve Borel, D. Lynch, Y. Le Bornec, A. Deshpande, D. S. Brown, Julia Velkovska, M. Rosati, M. Konno, M. Oka, A. Pierson, Kazuyoshi Kurita, A. Drees, V. Dzhordzhadze, X. He, O. O. Omiwade, M. Velkovsky, E. P. Hartouni, J. Kubart, J. Gosset, J. P. Sullivan, W. C. Smith, L. Sanfratello, I. E. Yushmanov, Nikolay Tyurin, Alexander Milov, S. H. Aronson, I. Nakagawa, M. Wysocki, Norio Saito, M. A. L. Leite, H. Pereira, M. Inuzuka, Hideki Hamagaki, K. Aoki, A. Glenn, M. Holmes, W. S. Emam, G. David, C. P. Singh, T. Horaguchi, A. Hoover, M. K. Lee, K. Ozawa, J. T. Mitchell, B. M. Johnson, A. Dion, V. Peresedov, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, David Olle Rickard Silvermyr, Charles Maguire, S. Leckey, R. Kohara, W. Holzmann, O. Drapier, Frank Ellinghaus, M. N. Wagner, Atsushi Taketani, R. Seidl, A. Enokizono, D. E. Fields, Vladislav Manko, A. Kiss, V. Babintsev, J. Egdemir, A. A. Vinogradov, Henrik Tydesjö, D. Winter, Josh Moss, R. Vértesi, Jason Kamin, K. S. Sim, S. S. Adler, E. R. Kinney, D. P. Morrison, B. V. Jacak, V. L. Rykov, T. Dahms, J. L. Drachenberg, S. Campbell, G. S. Kyle, M. Chiu, Ajit Kumar Mohanty, N. Willis, A. Isupov, C. Suire, M. Slunečka, Z. Yasin, Henner Buesching, James Alexander, Y. Watanabe, R. Averbeck, S. P. Sorensen, Jiangyong Jia, Y. Goto, S. P. Stoll, S. Batsouli, T. A. Shibata, Y. Kwon, Byung-Sik Hong, A. Bazilevsky, I. Younus, H. Masui, A. K. Dubey, C. L. Woody, W. C. Chang, T. Hester, J. Sziklai, V. E. Semenov, H. Hiejima, J. Zimányi, Dylan Walker, Philippe Rosnet, Alexandre Lebedev, M. McCumber, A. K. Purwar, E. Kistenev, Tatsuya Chujo, C. R. Cleven, C. Haegemann, Y. Inoue, D. M. Lee, Xiaopeng Zong, K. Dehmelt, A. A. Bickley, A. Soldatov, D. Kawall, S. S.E. Rosendahl, G. Bunce, K. Tanida, Roy A. Lacey, Brian Cole, S. Yokkaichi, Rushan Han, M. N. Hagiwara, Jen-Chieh Peng, J. G. Lajoie, J. M. Heuser, T. Hachiya, K. Imai, V. I. Kochetkov, O. Zaudtke, X. Camard, P. Chand, Marcus Hohlmann, S. Butsyk, A. Churyn, P. J. Kroon, Dong-Hun Kim, I. J. Choi, A. Kravitz, M. Virius, J. Murata, Vladimir Samsonov, C. Vale, D. Jouan, Y. J. Mao, I. Otterlund, S. Kametani, Gerd Joachim Kunde, B. S. Chang, L. Aphecetche, H. Harada, Takeo Kawabata, I. Shein, H. W. Vanhecke, Christine Angela Aidala, Ch. Finck, Jason Newby, J. Klay, Pàl Hidas, Saskia Mioduszewski, V-N. Tram, D. Isenhower, J. H. Kang, A. Toia, Dong Jo Kim, L. Mašek, Osamu Jinnouchi, H. Kobayashi, J. S. Haggerty, Y. Nakamiya, M. C. McCain, N. Grau, Alberto Baldisseri, A. Romana, K. Shoji, S. Bathe, Agneta Oskarsson, Tamas Ferenc Csorgo, P. W. Stankus, Motoi Inaba, German Martinez, Johannes Peter Wessels, Y. Berdnikov, J. L. Nagle, Y. Akiba, G. Baksay, A. P.T. Palounek, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, Y. Cobigo, Alexei Khanzadeev, Yves Roland Schutz, M. T. Bjorndal, Y. S. Lai, M. Issah, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, M. D. Malik, N. Bruner, E. Stenlund, E. Vznuzdaev, F. Kajihara, J. Jin, E. M. Takagui, H. Sakata, H. A. Gustafsson, H. Delagrange, A. Hadj Henni, C. Zhang, K. Boyle, Wei Xie, S. Zhou, Y. S. Kim, Viktor Riabov, T. V. Moukhanova, S. Afanasiev, A. Ster, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, B. Khachaturov, T. Matsumoto, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, Eva Haslum, B. Lenzi, Minghui Liu, Kenneth Francis Read, A. V. Kazantsev, P. Mikeš, Yoichiro Fukao, T. C. Awes, T. Liška, Jun Kikuchi, Tadaaki Isobe, J. S. Chai, P. L. McGaughey, L. D. Isenhower, François Fleuret, B. Forestier, T. Ichihara, F. K. Wohn, Matthew G. Reuter, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, K. Nakano, W. E. Sondheim, and P. A. Rukoyatkin
Subjects: Shock wave, Physics, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Jet (particle physics), Radiation, 01 natural sciences, Gluon, Azimuth, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Cherenkov radiation, Beam (structure)
Abstract: We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at root s(NN)=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.
Published: 2007
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45. Production of ω mesons at large transverse momenta inp+pandd+Au collisions atsNN=200GeV

Author: T. E. Miller, M. Rosati, R. Santo, B. Khachaturov, M. Velkovsky, Jan Rak, P. Tarján, Sean A. Kelly, D. Mukhopadhyay, Y. Cobigo, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, S. N. White, J. E. Frantz, T. Matsumoto, I. Ravinovich, S. S. Ryu, B. D. Fox, Viktor Veszpremi, Ahmed Al-Jamel, A. Glenn, V. L. Rykov, R. Granier de Cassagnac, Bruno Espagnon, Kensuke Homma, K. Hasuko, V-N. Tram, S. C. Johnson, M. J. Kweon, A. A. Vinogradov, Henrik Tydesjö, C. H. Kuberg, S. Chernichenko, Jiangyong Jia, W. E. Sondheim, Saskia Mioduszewski, H. Lim, B. Bassalleck, V. Bumazhnov, S. S. Adler, Motoi Inaba, J. M. Burward-Hoy, D. E. Fields, B. V. Jacak, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Hiroyuki Okada, Y. Watanabe, M. Konno, J. Chiba, Mate Csanad, Y. J. Kwon, D. Isenhower, G. S. Kyle, Joakim Nystrand, Senta Greene, Y. Goto, T. Ichihara, F. K. Wohn, Matthew G. Reuter, C. L. Woody, K. Das, E. P. Hartouni, L. Sanfratello, J. G. Boissevain, Masashi Kaneta, I. D. Ojha, S. F. Pate, W. C. Chang, James Alexander, G. C. Mishra, J. T. Mitchell, Yves Roland Schutz, A. K. Purwar, Atsushi Taketani, Alexander Malakhov, German Martinez, David D'Enterria, A. Devismes, E. O'Brien, Alexander Milov, Marie Germain, K. Katou, Takao Sakaguchi, P. J. Kroon, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Afanasiev, A. Ster, M. Gross Perdekamp, Roy A. Lacey, S. Belikov, K. S. Joo, F. Kajihara, D. Pal, H. Delagrange, A. Soldatov, R. A. Soltz, H. Borel, K. Tanida, J. L. Drachenberg, C. Klein-Boesing, S. Butsyk, L. S. Zolin, Vladislav Manko, Vladimir Samsonov, X. R. Wang, C. Pinkenburg, Alexandre Lebedev, G. Roche, R. P. Pisani, S. Esumi, W. J. Park, E. M. Takagui, Nikolay Tyurin, V. I. Kochetkov, A. G. Litvinenko, M. Issah, Anne Marie Sickles, H. Kobayashi, S. Bathe, D. M. Lee, O. Drapier, P. D. Barnes, A. Yanovich, M. Stepanov, S. Zhou, A. Baldisseri, Xiaopeng Zong, A. Pierson, A. D. Frawley, T. Chujo, V. Papavassiliou, Tamas Ferenc Csorgo, Y. J. Mao, V. S. Pantuev, S. Kametani, B. M. Johnson, E. Vznuzdaev, S. Y. Fung, N. Grau, S. P. Sorensen, A. Kozlov, R. Seto, Pàl Hidas, J. L. Nagle, X. Camard, E. R. Kinney, M. Heffner, M. Harvey, N. N. Ajitanand, Gerd Joachim Kunde, J. H. Kang, David Olle Rickard Silvermyr, S. H. Aronson, A. Isupov, E. H. Kim, J. S. Haggerty, D. P. Morrison, A. Taranenko, Robert F. Hobbs, Martin Purschke, A. Romana, Ferenc Deák, N. Kamihara, Junji Tojo, John Hill, K. Oyama, O. Dietzsch, I. Shein, W. A. Zajc, M. P. Comets, H. W. Vanhecke, G. R. Young, Christine Angela Aidala, L. Aphecetche, S. Gadrat, Takeo Kawabata, M. C. McCain, V. Dzhordzhadze, S. Takagi, W. Holzmann, Brian Cole, Toru Sugitate, L. D. Isenhower, R. S. Towell, D. Kotchetkov, P. W. Stankus, K. Okada, Takahiro Nakamura, Dipanwita Dutta, Y. Tanaka, V. Baublis, A. Denisov, K. N. Barish, V. Cianciolo, Maya Hachiya Shimomura, F. Matathias, R. Armendariz, Akio Kiyomichi, V. E. Semenov, Anders Nils Erik Oskarsson, S. Sawada, Z. Fraenkel, H. En'yo, P. Constantin, M. J. Leitch, Y. Akiba, Y. I. Makdisi, T. K. Shea, R. K. Choudhury, J. Zimányi, A. Franz, François Fleuret, I. V. Sourikova, Sergey Fokin, M. T. Bjorndal, J. Gosset, Wei Xie, A. Durum, J. P. Sullivan, A. Deshpande, T. J. Uam, H. Torii, B. Komkov, A. Drees, K. S. Sim, C. Y. Chi, Hans-Åke Gustafsson, C. L. Silva, T. Horaguchi, A. Hoover, M. J. Tannenbaum, S. Nagamiya, Kazuhiro Tanaka, D. S. Brown, Norio Saito, M. L. Brooks, M. A. L. Leite, H. Hiejima, X. He, J. G. Lajoie, V. V. Ikonnikov, Jen-Chieh Peng, R. Kohara, Masayasu Ishihara, S. Yokkaichi, J. M. Heuser, Susumu Sato, T. Hachiya, V. Peresedov, Y. Le Bornec, Klaus Johannes Reygers, D. Bucher, V. Babintsev, K. Imai, M. Muniruzzaman, C. Zhang, H. Masui, Ingvar Otterlund, S. P. Stoll, Evert Anders Stenlund, F. Staley, Viktor Riabov, I. J. Choi, S. S.E. Rosendahl, G. Bunce, A. G. Hansen, Shingo Sakai, A. Kiss, S. Batsouli, H. Pei, Henner Buesching, T. L. Thomas, D. Jouan, M. Gonin, M. A. Volkov, Ryugo S. Hayano, P. Chand, Y. Riabov, V.N. Penev, A. P.T. Palounek, Kenta Shigaki, Dong Jo Kim, C. A. Ogilvie, T. K. Hemmick, A. S. Nyanin, Yasuo Miake, P. Rosnet, Osamu Jinnouchi, L. Kochenda, K. Kurita, H. J. Kim, H. Pereira, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, Charles Maguire, S. Leckey, Hiroaki Ohnishi, Josh Moss, J. M. Qualls, E. Kistenev, N. Willis, Xingguo Li, Alexei Khanzadeev, N. Bruner, Minghui Liu, Kenneth Francis Read, P. L. McGaughey, Ch. Finck, Jason Newby, A. V. Kazantsev, E. J. Desmond, Jean-Pierre Cussonneau, Yoichiro Fukao, M. Togawa, J. Park, Florian Bauer, T. C. Awes, Kyoichiro Ozawa, Jun Kikuchi, Y. Tsuchimoto, and I. E. Yushmanov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Energy loss, Meson, 010308 nuclear & particles physics, Modification factor, Omega baryon, 01 natural sciences, Omega, Nuclear physics, Transverse plane, Minimum bias, 0103 physical sciences, Transverse momentum, 010306 general physics
Abstract: The PHENIX experiment at RHIC has measured the invariant cross section for omega-meson production at mid-rapidity in the transverse momentum range 2.5 pi^0 pi^+ pi^- and omega --> pi^0 gamma) yield consistent results, and the reconstructed omega mass agrees with the accepted value within the p_T range of the measurements. The omega/pi^0 ratio is found to be 0.85 +/- 0.05(stat) +/- 0.09(sys) and 0.94 +/- 0.08(stat) +/- 0.12(sys) in p+p and d+Au collisions respectively, independent of p_T . The nuclear modification factor R_dA is 1.03 +/- 0.12(stat) +/- 0.21(sys) and 0.83 +/- 0.21(stat) +/- 0.17(sys) in minimum bias and central (0-20%) d+Au collisions, respectively.
Published: 2007
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46. Energy Loss and Flow of Heavy Quarks inAu+AuCollisions atsNN=200 GeV

Author: J. G. Boissevain, Masashi Kaneta, M. Mitrovski, S. Esumi, B. Azmoun, A. Král, M. J. Kweon, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, M. Rosati, R. A. Soltz, J. L. Drachenberg, S. P. Sorensen, Dylan Walker, R. Vértesi, Jason Newby, O. Drapier, Frank Ellinghaus, E. R. Kinney, M. Grosse Perdekamp, J. E. Frantz, B. Love, D. P. Morrison, S. Campbell, Bruno Espagnon, A. A. Vinogradov, Henrik Tydesjö, J. G. Lajoie, Herve Borel, D. Lynch, V. E. Semenov, J. Zimányi, C. Pinkenburg, Steven E. Skutnik, Tae-Yeon Lee, Martin Purschke, Marie Germain, F. Gastineau, D. Kotchetkov, A. Morreale, Z. Fraenkel, S. Belikov, K. S. Joo, Tatsuya Chujo, Y. Goto, D. Sharma, T. Hachiya, A. Glenn, Mate Csanad, K. Hasuko, L. Tomášek, V. S. Pantuev, A. Deshpande, A. G. Litvinenko, I. J. Choi, A. Kravitz, V. L. Rykov, T. Dahms, H. Qu, M. Stepanov, G. Roche, Hiroyuki Okada, A. Kozlov, Hideki Hamagaki, K. Aoki, G. David, R. Seto, M. Wysocki, E. H. Kim, Joakim Nystrand, W. A. Zajc, I. Ravinovich, V. Baublis, S. Kelly, K. Haruna, N. N. Ajitanand, M. Issah, M. Harvey, D. Winter, M. P. Comets, D. Yu Peressounko, Eva Haslum, B. Lenzi, Y. Nagata, S. Bathe, Agneta Oskarsson, H. Pei, V. Dzhordzhadze, S. Takagi, A. V. Kazantsev, Takahiro Nakamura, S. S. Ryu, Y. Berdnikov, Y. Akiba, J. Gosset, K. N. Barish, S. F. Pate, A. Denisov, V. Cianciolo, David D'Enterria, M. D. Malik, E. Vznuzdaev, Junji Tojo, P. Tarján, M. Chiu, T. A. Shibata, Susumu Oda, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Xiao-yan Li, J. P. Sullivan, R. P. Pisani, T. Shohjoh, Sergey Fokin, Vaclav Vrba, Klaus Johannes Reygers, A. Durum, H. Al-Bataineh, X. R. Wang, Nikolay Tyurin, M. N. Wagner, J. T. Mitchell, P. Mikeš, K. Nakano, T. Horaguchi, I. Younus, D. Isenhower, A. Toia, L. Mašek, W. E. Sondheim, Charles Maguire, S. Leckey, D. S. Brown, R. Bennett, Ahmed Al-Jamel, M. Finger, Jan Rak, K. Okada, Yoichiro Fukao, A. Soldatov, R. Seidl, Vladislav Manko, M. Slunečka, R. Pak, N. Kamihara, S. Yokkaichi, M. L. Brooks, Josh Moss, J. Chiba, B. Sahlmueller, V. Papavassiliou, Sébastien Gadrat, R. Granier de Cassagnac, T. Hester, T. C. Awes, A. Adare, J. M. Heuser, P. A. Rukoyatkin, H. En'yo, R. Armendariz, D. E. Fields, E. Kistenev, P. Constantin, M. J. Leitch, T. Liška, Jun Kikuchi, C. P. Singh, C. R. Cleven, Kazuyoshi Kurita, Y. L. Yamaguchi, B. Komkov, Senta Greene, B. V. Jacak, G. C. Mishra, C. Haegemann, Y. Inoue, A. Drees, I. Tserruya, M. McCumber, A. K. Purwar, Norio Saito, B. E. Norman, E. O'Brien, Takao Sakaguchi, C. Klein-Boesing, M. A. L. Leite, B. M. Johnson, Yu. Efremenko, A. Hadj Henni, P. J. Kroon, Dong-Hun Kim, M. Gonin, A. D. Frawley, K. Boyle, V-N. Tram, T. Tabaru, C. Vale, B. S. Chang, V. Singh, Christine Angela Aidala, J. Klay, H. Harada, J. L. Charvet, V. Babintsev, G. S. Kyle, M. B. Deaton, A. Isupov, J. Kubart, J. M. Burward-Hoy, Wei Xie, J. Sziklai, H. Pereira, W. C. Smith, T. E. Miller, James Alexander, O. Zaudtke, Y. Tanaka, E. T. Atomssa, T. K. Shea, J. Jia, S. H. Aronson, R. Averbeck, Byung-Sik Hong, M. K. Lee, K. Ozawa, Motoi Inaba, Brian Cole, A. Bazilevsky, Hirohiko Sato, S. K. Tuli, Youngil Kwon, W. Holzmann, P. Chung, Philippe Rosnet, Y. J. Mao, S. Kametani, Maya Hachiya Shimomura, M. Virius, M. Holmes, K. Dehmelt, Alexandre Lebedev, L. Baksay, Jen-Chieh Peng, Y. I. Makdisi, D. M. Lee, J. S. Haggerty, A. Romana, S. Y. Fung, W. S. Emam, M. Ouchida, J. Asai, S. Afanasiev, A. Ster, H. Kanou, K. Das, Taku Gunji, H. Gong, J. Seele, Y. Cobigo, E. P. Hartouni, Shingo Sakai, Hiroaki Ohnishi, F. Kajihara, M. Naglis, Anne Marie Sickles, Y. S. Lai, C. L. Silva, Dong Jo Kim, H. Delagrange, K. O. Eyser, K. Fujiwara, D. Hornback, H. A. Torii, Osamu Jinnouchi, M. Heffner, R. S. Towell, Toru Sugitate, Masayasu Ishihara, L. D. Isenhower, I. Garishvili, Akio Kiyomichi, M. J. Tannenbaum, Susumu Sato, N. Grau, S. Zhou, A. Taranenko, F. Staley, N. Kurihara, K. Shoji, Kazushi Miki, Minghui Liu, Y. S. Kim, François Fleuret, M. G. Hur, C. Y. Chi, B. Forestier, Kenneth Francis Read, G. R. Young, P. W. Stankus, T. Ichihara, N. Willis, D. Mukhopadhyay, H. A. Gustafsson, L. Aphecetche, S. Rembeczki, J. Egdemir, F. Matathias, H. W. Van Hecke, D. Bucher, Matthew G. Reuter, Saskia Mioduszewski, D. Kawall, Kensuke Homma, Takahiro Fusayasu, K. Tanida, C. Zhang, V. I. Kochetkov, C. Silvestre, I. D. Ojha, Alexander Malakhov, Jason Kamin, J. Murata, J. Jin, E. M. Takagui, S. Chernichenko, S. P. Stoll, Marisilvia Donadelli, V. Bumazhnov, Johannes Peter Wessels, Gerd Joachim Kunde, D. Silvermyr, H. Lim, I. Shein, Andry Malala Rakotozafindrabe, A. Kiss, Viktor Riabov, B. Bassalleck, L. S. Zolin, W. J. Park, S. S.E. Rosendahl, Alberto Baldisseri, Z. Yasin, Henner Buesching, G. Bunce, M. Konno, C. L. Woody, S. Batsouli, P. D. Barnes, A. Yanovich, Xingguo Li, H. Kano, Tadaaki Isobe, J. S. Chai, A. Churyn, O. Dietzsch, H. Valle, Y. Nakamiya, Marcus Hohlmann, D. Jouan, A. Shevel, Roy A. Lacey, K. S. Sim, Julia Velkovska, Rushan Han, M. N. Hagiwara, P. L. McGaughey, Y. Watanabe, S. N. White, M. C. McCain, S. Butsyk, Vladimir Samsonov, C. A. Ogilvie, J. C. Hill, I. Otterlund, X. He, J. Kang, T. K. Hemmick, Yasuo Miake, G. Baksay, L. Kochenda, O. O. Omiwade, H. Hiejima, A. P.T. Palounek, Tamas Ferenc Csorgo, I. V. Sourikova, J. L. Nagle, M. T. Bjorndal, K. Imai, V. Peresedov, Y. Le Bornec, T. L. Thomas, Ryugo S. Hayano, Robert F. Hobbs, Debashish Pal, Y. Riabov, S. Sawada, J. Ying, A. Franz, Kenta Shigaki, M. Nguyen, A. S. Nyanin, E. J. Desmond, H. Masui, A. K. Dubey, M. Togawa, J. Park, Florian Bauer, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, A. A. Bickley, E. Stenlund, H. Sakata, T. V. Moukhanova, and T. Kawagishi
Subjects: Quark, Physics, 010308 nuclear & particles physics, Elliptic flow, General Physics and Astronomy, Electron, 01 natural sciences, 7. Clean energy, Nuclear physics, Particle decay, Pion, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy
Abstract: The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured electrons with 0.3 < p(T) < 9 GeV/c at midrapidity (y < 0.35) from heavy-flavor (charm and bottom) decays in Au + Au collisions at root s(NN) = 200 GeV. The nuclear modification factor R-AA relative to p + p collisions shows a strong suppression in central Au + Au collisions, indicating substantial energy loss of heavy quarks in the medium produced at RHIC energies. A large azimuthal anisotropy v(2) with respect to the reaction plane is observed for 0.5 < p(T) < 5 GeV/c indicating substantial heavy-flavor elliptic flow. Both R-AA and v(2) show a p(T) dependence different from those of neutral pions. A comparison to transport models which simultaneously describe R-AA(p(T)) and v(2)(p(T)) suggests that the viscosity to entropy density ratio is close to the conjectured quantum lower bound, i.e., near a perfect fluid.
Published: 2007
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47. Evidence for a Long-Range Component in the Pion Emission Source inAu+AuCollisions atsNN=200 GeV

Author: S. C. Johnson, Y. J. Mao, M. J. Kweon, S. Kametani, Youngil Kwon, T. E. Miller, J. H. Kang, H. Tsuruoka, S. S. Adler, C. L. Silva, J. S. Haggerty, A. Romana, G. S. Kyle, Mate Csanad, R. Santo, James Alexander, J. B. Choi, A. Enokizono, S. Afanasiev, A. Ster, L. Sanfratello, Y. Jeong, R. Averbeck, Byung-Sik Hong, P. Chung, Masayasu Ishihara, F. Messer, A. Bazilevsky, M. Heffner, A. Taranenko, S. Borenstein, G. Gogiberidze, David D'Enterria, V. Bumazhnov, Susumu Sato, K. Ozawa, B. Khachaturov, I. Ravinovich, E. P. Hartouni, Philippe Rosnet, M. Muniruzzaman, S. P. Stoll, T. Matsumoto, Sean A. Kelly, T. L. Thomas, Alexandre Lebedev, Viktor Veszpremi, Joakim Nystrand, Charles Maguire, F. Plasil, T. Peitzmann, Saskia Mioduszewski, G. Bunce, R. P. Pisani, F. Staley, S. Sawada, D. M. Lee, S. Leckey, J. D. Tepe, A. Franz, Atsushi Taketani, Nikolay Tyurin, A. Isupov, Ryugo S. Hayano, S. S. Ryu, V. S. Pantuev, R. du Rietz, Josh Moss, S. S. Kapoor, N. N. Ajitanand, P. Tarján, K. Tanida, J. Gosset, J. P. Sullivan, Y. Riabov, V.A. Onuchin, A. Devismes, S. Belikov, K. S. Joo, M. Harvey, Kenta Shigaki, Senta Greene, M. Nara, W. C. Chang, V. I. Kochetkov, D. Jouan, Hideki Hamagaki, Takahiro Nakamura, G. David, Junji Tojo, I. Tserruya, S. F. Pate, M. Tamai, S. Zhou, Jan Rak, Roy A. Lacey, W. Guryn, K. Okada, C. H. Kuberg, M. A. Volkov, E. Kistenev, O. Dietzsch, H. Delagrange, S. N. White, A. S. Nyanin, E. O'Brien, M. E. Sadler, R. A. Soltz, H. Borel, S. Bathe, R. Granier de Cassagnac, M. Grosse Perdekamp, H. En'yo, P. Constantin, M. J. Leitch, Yves Roland Schutz, C. A. Ogilvie, Dipanwita Dutta, X. R. Wang, Yu. Efremenko, S. P. Sorensen, Yanwen Liu, M. Kopytine, Kensuke Homma, E. Melnikov, S. Yokkaichi, J. M. Heuser, V. Singh, K. El Chenawi, M. R. Shaw, S. Butsyk, T. K. Hemmick, A. Baldisseri, Yasuo Miake, Julia Velkovska, Peter M. Nilsson, Norio Saito, Vladimir Samsonov, A. Durum, M. Rosati, I. Otterlund, V. Papavassiliou, S. Chernichenko, H. Lim, H. Kobayashi, Martin Purschke, M. Velkovsky, Agneta Oskarsson, Shih-Chang Lee, D. Pal, R. Azmoun, G. B. Kim, E. M. Takagui, D. Koehler, D. S. Brown, David Olle Rickard Silvermyr, B. Bassalleck, F. Mühlbacher, L. Ewell, J. G. Boissevain, K. S. Sim, Y. Watanabe, M. Chiu, Ajit Kumar Mohanty, L. Kochenda, Y. Kuroki, Do-Won Kim, P. J. Kroon, A. A. Vinogradov, Henrik Tydesjö, Tamas Ferenc Csorgo, T. A. Shibata, J. G. Lajoie, Jiangyong Jia, T. Hachiya, J. L. Nagle, D. Kotchetkov, S. Bhagavatula, K. Katou, J. T. Mitchell, D. Mukhopadhyay, V. Babintsev, R. S. Towell, Y. Berdnikov, K. Kiyoyama, Dong-Hun Kim, W. Y. Jang, Y. Akiba, Y. Goto, Y. Cobigo, E. H. Kim, D. E. Fields, B. V. Jacak, W. E. Sondheim, A. Kiyomichi, A. G. Hansen, Shingo Sakai, T. Kohama, Z. Fraenkel, C. Pinkenburg, Vladislav Manko, J. E. Frantz, B. K. Nandi, M. D. Marx, K. Imai, I. J. Choi, S. Nagamiya, Kazuhiro Tanaka, Y. Tanaka, M. Stepanov, G. Roche, R. K. Choudhury, V. Ladygin, M. Gonin, D. Isenhower, Klaus Johannes Reygers, N. Grau, N. Kamihara, T. Chujo, A. K. Purwar, T. Ichihara, N. Hayashi, F. K. Wohn, A. Soldatov, X. Camard, A. Glenn, K. Kurita, German Martinez, T. K. Shea, F. Matathias, M. Sivertz, C. Y. Chi, T. K. Ghosh, A. Parmar, Matthew G. Reuter, P. W. Stankus, A. Drees, Hirohiko Sato, S. K. Tuli, I. D. Ojha, Alexander Malakhov, K. N. Barish, G. R. Young, Christine Angela Aidala, I. V. Sourikova, H. Torii, M. Ono, Y. Yang, L. S. Zolin, C. P. Singh, B. M. Johnson, P. D. Barnes, A. Yanovich, Jen-Chieh Peng, Hiroaki Ohnishi, S. Y. Fung, J. Milan, Brian Cole, H. W. Van Hecke, John Hill, K. Oyama, Toru Sugitate, François Fleuret, C. L. Woody, Dong Jo Kim, Osamu Jinnouchi, P. Chand, M. L. Brooks, Alexander Milov, O. Drapier, D. P. Morrison, V. E. Semenov, H. J. Kim, A. G. Litvinenko, H. Buesching, A. Kozlov, R. Seto, L. Villatte, Xingguo Li, X. He, V. Peresedov, H. Masui, J. S. Chai, P. L. McGaughey, J. M. Burward-Hoy, J. Chiba, M. Sakai, Minghui Liu, Kenneth Francis Read, G. C. Mishra, Takao Sakaguchi, C. Klein-Boesing, T. C. Awes, A. D. Frawley, Jun Kikuchi, S. H. Aronson, W. Holzmann, S. Batsouli, Y. I. Makdisi, L. Aphecetche, M. J. Tannenbaum, V. V. Ikonnikov, D. Bucher, A. P.T. Palounek, Wei Xie, A. Deshpande, E. J. Desmond, M. Hibino, S. Garpman, J. Park, R. Amirikas, H. A. Gustafsson, M. I. Nagy, I. E. Yushmanov, M. Issah, Alexei Khanzadeev, E. Vznuzdaev, N. Bruner, E. Stenlund, T. Shiina, R. E. Mischke, C. Zhang, Viktor Riabov, S. Esumi, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, Jason Newby, A. Hoover, J. Murata, and B. D. Fox
Subjects: Physics, Range (particle radiation), Particle physics, SIMPLE (dark matter experiment), 010308 nuclear & particles physics, Component (thermodynamics), Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Resonance (particle physics), Nuclear physics, Pion, 0103 physical sciences, Halo, Nuclear Experiment, 010306 general physics, Astrophysics::Galaxy Astrophysics
Abstract: Emission source functions are extracted from correlation functions constructed from charged pions produced at midrapidity in Au+Au collisions at s(NN)=200 GeV. The source parameters extracted from these functions at low k(T) give first indications of a long tail for the pion emission source. The source extension cannot be explained solely by simple kinematic considerations. The possible role of a halo of secondary pions from resonance emissions is explored.
Published: 2007
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48. High transverse momentum η meson production inp+p,d+Au, and Au+Au collisions atsNN=200GeV

Author: D. E. Fields, B. V. Jacak, A. K. Purwar, N. N. Ajitanand, Takahiro Nakamura, M. E. Sadler, A. Durum, D. S. Brown, M. Rosati, Alexander Milov, S. S. Adler, G. S. Kyle, H. Tsuruoka, Y. Yang, C. P. Singh, Mate Csanad, J. Gosset, B. D. Fox, J. P. Sullivan, N. Willis, James Alexander, T. L. Thomas, M. Velkovsky, R. A. Soltz, H. Borel, R. Kohara, Jan Rak, W. Guryn, Y. Jeong, R. Averbeck, Byung-Sik Hong, B. M. Johnson, T. E. Miller, Alexei Khanzadeev, A. Bazilevsky, O. Drapier, S. Butsyk, Philippe Rosnet, C. H. Kuberg, M. Grosse Perdekamp, J. Chiba, R. Santo, David D'Enterria, C. L. Silva, S. P. Stoll, Hiroaki Ohnishi, J. Milan, N. Bruner, E. Stenlund, Vladimir Samsonov, L. Sanfratello, A. A. Vinogradov, Henrik Tydesjö, N. Grau, Alexandre Lebedev, D. M. Lee, A. Isupov, Xiaopeng Zong, R. P. Pisani, S. Afanasiev, M. Sakai, Ryugo S. Hayano, Robert F. Hobbs, A. Enokizono, E. R. Kinney, D. P. Morrison, V. E. Semenov, S. Borenstein, J. Zimányi, A. Pierson, Masayasu Ishihara, J. S. Chai, K. Ozawa, Nikolay Tyurin, S. Yokkaichi, I. Otterlund, B. Komkov, P. L. McGaughey, K. A. Drees, Youngil Kwon, Yuri Efremenko, J. M. Burward-Hoy, J. M. Heuser, Y. Riabov, Susumu Sato, M. Issah, Jiangyong Jia, Y. Goto, J. M. Qualls, M. Muniruzzaman, S. S.E. Rosendahl, G. Bunce, A. Ster, Kenta Shigaki, Norio Saito, Shih-Chang Lee, M. Kaufman, A. Devismes, M. A. L. Leite, Brian Cole, F. Staley, E. Vznuzdaev, Y. J. Mao, S. Kametani, S. Batsouli, S. Sawada, Paul Stankus, J. D. Tepe, K. Tanida, Y. Tanaka, Jen-Chieh Peng, K. S. Sim, T. K. Shea, Y. Watanabe, A. Franz, F. Kajihara, V. S. Pantuev, Tamas Ferenc Csorgo, G. C. Mishra, V-N. Tram, V. I. Kochetkov, A. S. Nyanin, Pàl Hidas, J. H. Kang, M. Harvey, S. S. Kapoor, J. S. Haggerty, David Olle Rickard Silvermyr, H. Delagrange, T. Shiina, D. Jouan, A. Romana, Yi Liu, B. Espagnon, Junji Tojo, M. A. Volkov, A. V. Kazantsev, R. Durietz, Motoi Inaba, J. L. Nagle, F. Messer, Gerd Joachim Kunde, V. Babintsev, H. Hiejima, S. F. Pate, L. Aphecetche, M. Kopytine, S. Zhou, Takeo Kawabata, I. Shein, M. C. McCain, K. Okada, M. Heffner, A. Taranenko, E. H. Kim, B. Sahlmueller, H. En'yo, T. Peitzmann, P. Constantin, A. Baldisseri, C. A. Ogilvie, J. B. Choi, M. Inuzuka, Soren Pontoppidan Sorensen, Hideki Hamagaki, K. Aoki, X. R. Wang, M. J. Leitch, Takao Sakaguchi, G. Gogiberidze, Saskia Mioduszewski, K. Imai, P. Tarján, Sean A. Kelly, T. K. Hemmick, Viktor Veszpremi, G. David, T. Kohama, H. Pei, Yasuo Miake, V. Papavassiliou, O. Dietzsch, Yoichiro Fukao, K. Das, M. Chiu, Ajit Kumar Mohanty, C. Klein-Boesing, Dong Jo Kim, T. A. Shibata, Sébastien Gadrat, J. G. Boissevain, Masashi Kaneta, B. Khachaturov, T. Matsumoto, K. Katou, K. Hasuko, L. Kochenda, K. Kiyoyama, E. P. Hartouni, Dipanwita Dutta, B. K. Nandi, Osamu Jinnouchi, C. Zhang, Jun Kikuchi, A. Kiyomichi, Xingguo Li, C. Pinkenburg, Hiroyuki Okada, Y. Kuroki, A. D. Frawley, W. Y. Jang, Anne Marie Sickles, Julia Velkovska, E. J. Desmond, I. V. Sourikova, H. Torii, Joakim Nystrand, M. Stepanov, G. Roche, V. Ladygin, M. Gonin, H. J. Kim, D. Isenhower, Senta Greene, M. Nara, Do-Won Kim, P. J. Kroon, V.N. Penev, Dong-Hun Kim, Jean-Pierre Cussonneau, I. Tserruya, German Martinez, V. Bumazhnov, M. P. Comets, M. Togawa, Ferenc Deák, R. G. De Cassagnac, Minghui Liu, N. Kamihara, Wei Xie, M. Hibino, E. O'Brien, V. Singh, A. Deshpande, J. Park, Florian Bauer, F. Matathias, R. Armendariz, Kenneth Francis Read, K. Kurita, L. Villatte, S. H. Aronson, G. B. Kim, A. P.T. Palounek, Yves Roland Schutz, A. Drees, D. Koehler, H. Pereira, M. Sivertz, Y. Tsuchimoto, Charles Maguire, S. Leckey, S. Garpman, R. Amirikas, D. Pal, W. Holzmann, Josh Moss, W. C. Chang, J. L. Drachenberg, I. E. Yushmanov, Maya Hachiya Shimomura, Hirohiko Sato, S. K. Tuli, Roy A. Lacey, H. A. Gustafsson, M. Tamai, E. M. Takagui, R. S. Towell, E. Kistenev, Y. I. Makdisi, Peter M. Nilsson, R. E. Mischke, A. G. Hansen, Shingo Sakai, Ch. Finck, Jason Newby, J. G. Lajoie, T. Hachiya, J. Murata, I. J. Choi, N. Hayashi, Viktor Riabov, C. Y. Chi, M. J. Tannenbaum, S. Esumi, V. V. Ikonnikov, W. A. Zajc, D. Bucher, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, T. Horaguchi, A. Hoover, V.A. Onuchin, S. Belikov, K. S. Joo, K. El Chenawi, M. R. Shaw, Marie Germain, H. W. Van Hecke, S. C. Johnson, M. J. Kweon, A. G. Litvinenko, Y. Le Bornec, Kensuke Homma, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, A. Kiss, T. Ichihara, M. Konno, A. Kozlov, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, G. R. Young, R. Seto, Atsushi Taketani, Henner Buesching, C. L. Woody, M. T. Bjorndal, I. D. Ojha, Alexander Malakhov, J. T. Mitchell, V. Dzhordzhadze, Martin Purschke, P. Chand, Vladislav Manko, X. He, M. D. Marx, L. S. Zolin, W. J. Park, T. Chujo, V. Peresedov, X. Camard, A. Parmar, D. Kotchetkov, S. Bhagavatula, Christine Angela Aidala, P. D. Barnes, A. Yanovich, Z. Fraenkel, H. Masui, R. K. Choudhury, S. N. White, H. Kobayashi, S. Takagi, S. Bathe, Terry C Awes, K. N. Barish, Agneta Oskarsson, Y. Berdnikov, M. Ono, A. Soldatov, W. E. Sondheim, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, T. J. Uam, S. Y. Fung, M. L. Brooks, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, R. Azmoun, D. Mukhopadhyay, Y. Cobigo, I. Ravinovich, François Fleuret, F. Plasil, S. S. Ryu, Ahmed Al-Jamel, J. E. Frantz, A. Glenn, and V. L. Rykov
Subjects: Physics, Nuclear and High Energy Physics, Annihilation, Meson, 010308 nuclear & particles physics, Nuclear Theory, Parton, Electron, 7. Clean energy, 01 natural sciences, Nuclear physics, Momentum, Deuterium, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Inclusive transverse momentum spectra of eta mesons in the range p(T)approximate to 2-12 GeV/c have been measured at midrapidity (vertical bar eta vertical bar gamma gamma channel for the three colliding systems as well as through the eta ->pi(0)pi(+)pi(-) decay mode in p+p and d+Au collisions. The nuclear modification factor in d+Au collisions, R-dAu(p(T))approximate to 1.0-1.1, suggests at most only modest p(T) broadening ("Cronin enhancement"). In central Au+Au reactions, the eta yields are significantly suppressed, with R-AuAu(p(T))approximate to 0.2. The ratio of eta to pi(0) yields is approximately constant as a function of p(T) for the three colliding systems in agreement with the high-p(T) world average of R-eta/pi(0)approximate to 0.5 in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions for a wide range of center-of-mass energies (root sNN approximate to 3-1800 GeV) as well as, for high scaled momentum x(p), in e(+)e(-) annihilations at root s=91.2 GeV. These results are consistent with a scenario where high-p(T) eta production in nuclear collisions at the Relativistic Heavy Ion Collider is largely unaffected by initial-state effects but where light-quark mesons (pi(0),eta) are equally suppressed due to final-state interactions of the parent partons in the dense medium produced in Au+Au reactions.
Published: 2007
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49. Measurement of Direct Photon Production inp+pCollisions ats=200 GeV

Author: J. E. Frantz, Herve Borel, A. Glenn, Alexei Khanzadeev, S. Afanasiev, A. Ster, V. L. Rykov, N. Bruner, M. Heffner, Robert F. Hobbs, A. Taranenko, B. Khachaturov, T. Matsumoto, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, J. M. Burward-Hoy, R. A. Soltz, M. Grosse Perdekamp, O. Zaudtke, A. Pierson, J. L. Drachenberg, David Olle Rickard Silvermyr, S. Sawada, J. G. Boissevain, A. Franz, D. Mukhopadhyay, Y. Cobigo, Masashi Kaneta, I. Ravinovich, K. Katou, P. Tarján, Sean A. Kelly, S. S. Ryu, Viktor Veszpremi, Ahmed Al-Jamel, Anne Marie Sickles, C. Pinkenburg, S. Y. Fung, M. Stepanov, L. Sanfratello, T. L. Thomas, G. Roche, T. E. Miller, J. Gosset, Senta Greene, K. Ozawa, E. J. Desmond, V. Bumazhnov, M. P. Comets, J. P. Sullivan, C. H. Kuberg, J. Chiba, R. Santo, D. E. Fields, E. O'Brien, Jean-Pierre Cussonneau, O. Dietzsch, M. Togawa, S. P. Sorensen, B. V. Jacak, J. Park, Wei Xie, G. R. Young, Florian Bauer, Dipanwita Dutta, B. D. Fox, S. Yokkaichi, J. M. Heuser, Ryugo S. Hayano, A. Deshpande, X. He, A. K. Purwar, John Hill, K. Oyama, Y. Tsuchimoto, W. C. Chang, M. Rosati, M. Velkovsky, Ferenc Deák, N. Kamihara, I. E. Yushmanov, Roy A. Lacey, Y. J. Mao, J. T. Mitchell, Bruno Espagnon, A. A. Vinogradov, S. Kametani, S. S. Adler, G. S. Kyle, Y. Tanaka, Toru Sugitate, Henrik Tydesjö, L. D. Isenhower, V. Peresedov, Pàl Hidas, T. K. Shea, V-N. Tram, J. H. Kang, G. C. Mishra, M. Chiu, Ajit Kumar Mohanty, Youngil Kwon, T. A. Shibata, Takao Sakaguchi, J. G. Lajoie, Y. Riabov, T. Hachiya, Kenta Shigaki, S. Butsyk, P. L. McGaughey, Jiangyong Jia, Y. Goto, V. S. Pantuev, Vladimir Samsonov, C. Klein-Boesing, N. N. Ajitanand, J. S. Haggerty, S. F. Pate, A. Romana, M. Harvey, Ch. Finck, Jason Newby, Junji Tojo, A. S. Nyanin, K. S. Sim, D. Isenhower, X. R. Wang, A. D. Frawley, François Fleuret, Ingvar Otterlund, I. J. Choi, M. Gonin, V.N. Penev, Takahiro Nakamura, F. Matathias, R. Armendariz, German Martinez, K. Okada, Tamas Ferenc Csorgo, Charles Maguire, A. Kiss, Motoi Inaba, S. Leckey, Y. Watanabe, K. Kurita, H. Pereira, Anders Nils Erik Oskarsson, J. L. Nagle, T. Ichihara, F. K. Wohn, Matthew G. Reuter, Vladislav Manko, Henner Buesching, S. H. Aronson, M. Issah, H. En'yo, P. Constantin, W. Holzmann, H. Masui, V. Papavassiliou, A. Durum, Sébastien Gadrat, A. Drees, A. V. Kazantsev, I. D. Ojha, A. Devismes, M. J. Leitch, Alexander Malakhov, Hiroaki Ohnishi, F. Kajihara, Josh Moss, D. S. Brown, C. L. Woody, H. Hiejima, Mate Csanad, E. Vznuzdaev, N. Willis, L. S. Zolin, James Alexander, J. M. Qualls, T. Chujo, H. Delagrange, Maya Hachiya Shimomura, Y. I. Makdisi, Marie Germain, W. J. Park, K. Das, X. Camard, N. Grau, C. Zhang, P. D. Barnes, A. G. Litvinenko, A. Yanovich, E. Kistenev, S. Zhou, Xingguo Li, P. Chand, R. Averbeck, Byung-Sik Hong, E. P. Hartouni, K. Imai, David D'Enterria, Martin Purschke, Evert Anders Stenlund, A. G. Hansen, M. A. Volkov, S. N. White, Shingo Sakai, A. Kozlov, R. Seto, H. W. Vanhecke, Christine Angela Aidala, A. Bazilevsky, Jan Rak, R. P. Pisani, M. J. Tannenbaum, Nikolay Tyurin, D. Kotchetkov, V. Dzhordzhadze, H. Pei, Viktor Riabov, S. Takagi, W. E. Sondheim, V. V. Ikonnikov, R. Granier de Cassagnac, Yoichiro Fukao, K. N. Barish, T. C. Awes, L. Aphecetche, Takeo Kawabata, M. C. McCain, C. A. Ogilvie, Jun Kikuchi, M. T. Bjorndal, D. Bucher, T. K. Hemmick, Yasuo Miake, S. Batsouli, I. V. Sourikova, H. Torii, Z. Fraenkel, P. W. Stankus, Philippe Rosnet, T. J. Uam, Minghui Liu, H. J. Kim, L. Kochenda, Kenneth Francis Read, M. L. Brooks, Alexandre Lebedev, R. Kohara, A. P.T. Palounek, Kensuke Homma, A. Soldatov, S. P. Stoll, K. Tanida, S. Esumi, S. S.E. Rosendahl, G. Bunce, D. M. Lee, V. I. Kochetkov, S. Chernichenko, R. K. Choudhury, W. A. Zajc, H. Lim, Xiaopeng Zong, D. Jouan, B. Bassalleck, V. Baublis, A. Denisov, V. Cianciolo, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, S. C. Johnson, M. Konno, Sergey Fokin, Gerd Joachim Kunde, H. Kobayashi, S. Bathe, I. Shein, Saskia Mioduszewski, T. Horaguchi, A. Hoover, E. H. Kim, M. J. Kweon, Y. Le Bornec, Y. Akiba, P. J. Kroon, S. Nagamiya, Yves Roland Schutz, Kazuhiro Tanaka, Alberto Baldisseri, Klaus Johannes Reygers, C. L. Silva, D. Pal, Masayasu Ishihara, Susumu Sato, E. M. Takagui, M. Muniruzzaman, Atsushi Taketani, F. Staley, S. Belikov, K. S. Joo, B. Komkov, Hans-Åke Gustafsson, B. M. Johnson, Norio Saito, M. A. L. Leite, A. Isupov, V. Babintsev, Brian Cole, R. S. Towell, Akio Kiyomichi, C. Y. Chi, Jen-Chieh Peng, Dong Jo Kim, Osamu Jinnouchi, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, Alexander Milov, O. Drapier, E. R. Kinney, D. P. Morrison, V. E. Semenov, and J. Zimányi
Subjects: Quantum chromodynamics, Physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, General Physics and Astronomy, Parton, Jet (particle physics), 01 natural sciences, 7. Clean energy, Nuclear physics, Transverse plane, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for p(T)> 7 GeV/c.
Published: 2007
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50. Jet properties from dihadron correlations inp+pcollisions ats=200 GeV

Author: N. Grau, K. Tanida, B. D. Fox, V. I. Kochetkov, P. W. Stankus, S. Takagi, K. N. Barish, H. Kobayashi, S. Bathe, Kensuke Homma, Gerd Joachim Kunde, B. M. Johnson, R. A. Soltz, I. Shein, S. S. Adler, G. S. Kyle, T. J. Uam, M. Grosse Perdekamp, N. Willis, James Alexander, S. Chernichenko, H. Lim, M. L. Brooks, Y. Akiba, C. H. Kuberg, K. Das, Alberto Baldisseri, R. Averbeck, B. Bassalleck, Byung-Sik Hong, S. Nagamiya, Brian Cole, Alexei Khanzadeev, A. Bazilevsky, Kazuhiro Tanaka, M. Konno, J. Chiba, A. Pierson, Philippe Rosnet, Klaus Johannes Reygers, N. Bruner, X. He, Alexandre Lebedev, E. P. Hartouni, V. Peresedov, H. Masui, D. M. Lee, G. C. Mishra, Takao Sakaguchi, David Olle Rickard Silvermyr, J. Gosset, J. P. Sullivan, X. Zong, Saskia Mioduszewski, Marie Germain, C. L. Silva, Hiroaki Ohnishi, A. G. Litvinenko, A. Kozlov, R. Seto, J. M. Qualls, E. H. Kim, V. Bumazhnov, M. P. Comets, V. Dzhordzhadze, C. Klein-Boesing, Yves Roland Schutz, A. D. Frawley, J. T. Mitchell, O. Dietzsch, S. C. Johnson, P. L. McGaughey, M. J. Kweon, Masayasu Ishihara, Susumu Sato, D. Pal, Y. Le Bornec, T. Ichihara, F. K. Wohn, R. Kohara, D. E. Fields, S. H. Aronson, Sean A. Kelly, Vladislav Manko, E. M. Takagui, R. S. Towell, B. V. Jacak, Viktor Veszpremi, M. Inuzuka, Hideki Hamagaki, Dipanwita Dutta, Matthew G. Reuter, G. David, Akio Kiyomichi, S. Yokkaichi, J. M. Heuser, I. D. Ojha, Alexander Malakhov, M. Muniruzzaman, F. Staley, A. K. Purwar, W. Holzmann, Maya Hachiya Shimomura, T. Chujo, H. W. Van Hecke, J. E. Frantz, X. Camard, T. L. Thomas, M. Rosati, P. Tarján, W. C. Chang, Xingguo Li, L. S. Zolin, Y. I. Makdisi, E. J. Desmond, M. Velkovsky, J. G. Boissevain, Masashi Kaneta, B. Komkov, A. Kiss, C. Y. Chi, Herve Borel, Christine Angela Aidala, Senta Greene, Jean-Pierre Cussonneau, W. J. Park, A. Glenn, K. Katou, Alexander Milov, S. P. Stoll, M. Togawa, Hans-Åke Gustafsson, Atsushi Taketani, J. M. Burward-Hoy, Roy A. Lacey, Y. Tanaka, T. K. Shea, Norio Saito, P. D. Barnes, A. Yanovich, Henner Buesching, C. L. Woody, J. Park, M. J. Tannenbaum, M. Gonin, B. Khachaturov, A. A. Vinogradov, Henrik Tydesjö, T. Matsumoto, C. Pinkenburg, M. A. L. Leite, V.N. Penev, Florian Bauer, E. O'Brien, V. L. Rykov, Jiangyong Jia, Y. Goto, P. Chand, Ryugo S. Hayano, M. T. Bjorndal, Martin Purschke, N. N. Ajitanand, Anne Marie Sickles, S. Butsyk, Vladimir Samsonov, S. N. White, S. S.E. Rosendahl, G. Bunce, V. V. Ikonnikov, Takahiro Nakamura, Y. Tsuchimoto, D. Bucher, M. Stepanov, G. Roche, Y. J. Mao, K. Hasuko, K. Kurita, S. Kametani, Y. J. Kwon, D. Kotchetkov, I. E. Yushmanov, Z. Fraenkel, L. Sanfratello, Tamas Ferenc Csorgo, W. E. Sondheim, Minghui Liu, Y. Riabov, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, P. J. Kroon, Kenta Shigaki, V. Babintsev, Hiroyuki Okada, Joakim Nystrand, A. Durum, J. L. Nagle, G. R. Young, R. K. Choudhury, S. Belikov, K. S. Joo, H. Pereira, S. Y. Fung, D. S. Brown, J. L. Drachenberg, Y. Watanabe, D. Jouan, Charles Maguire, S. Leckey, D. Mukhopadhyay, K. Ozawa, S. Esumi, Y. Cobigo, A. S. Nyanin, O. Drapier, E. R. Kinney, D. P. Morrison, I. Ravinovich, Anders Nils Erik Oskarsson, Kenneth Francis Read, S. P. Sorensen, John Hill, K. Oyama, A. V. Kazantsev, Ferenc Deák, N. Kamihara, Ch. Finck, S. Afanasiev, Jason Newby, A. Ster, Josh Moss, Toru Sugitate, L. D. Isenhower, A. Isupov, A. Soldatov, F. Matathias, R. Armendariz, V. E. Semenov, S. S. Ryu, V. S. Pantuev, E. Kistenev, François Fleuret, M. Harvey, J. G. Lajoie, T. Hachiya, K. S. Sim, Junji Tojo, Ahmed Al-Jamel, J. Zimányi, A. Drees, L. Aphecetche, W. A. Zajc, Ingvar Otterlund, K. Okada, I. J. Choi, H. Pei, H. En'yo, P. Constantin, M. A. Volkov, Takeo Kawabata, M. C. McCain, M. J. Leitch, V. Baublis, K. Aoki, M. Heffner, C. A. Ogilvie, T. K. Hemmick, H. Hiejima, Yoichiro Fukao, H. J. Kim, Yasuo Miake, A. Taranenko, A. Denisov, L. Kochenda, V. Cianciolo, K. Imai, T. C. Awes, Jun Kikuchi, Jen-Chieh Peng, Evert Anders Stenlund, Jan Rak, A. G. Hansen, Shingo Sakai, Sergey Fokin, R. Granier de Cassagnac, T. Horaguchi, A. Hoover, I. V. Sourikova, H. Torii, M. Issah, E. Vznuzdaev, C. Zhang, Wei Xie, A. Deshpande, Viktor Riabov, Dong Jo Kim, Osamu Jinnouchi, S. Batsouli, A. P.T. Palounek, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, D. Isenhower, German Martinez, A. Devismes, F. Kajihara, H. Delagrange, S. Zhou, T. E. Miller, R. Santo, Robert F. Hobbs, S. Sawada, A. Franz, B. Espagnon, S. F. Pate, X. R. Wang, V. Papavassiliou, Sébastien Gadrat, Mate Csanad, David D'Enterria, R. P. Pisani, Nikolay Tyurin, V-N. Tram, and Motoi Inaba
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, 01 natural sciences, Spectral line
Abstract: The properties of jets produced in p+p collisions at root s=200 GeV are measured using the method of two-particle correlations. The trigger particle is a leading particle from a large transverse momentum jet while the associated particle comes from either the same jet or the away-side jet. Analysis of the angular width of the near-side peak in the correlation function determines the jet-fragmentation transverse momentum j(T). The extracted value, root =585 +/- 6(stat)+/- 15(sys) MeV/c, is constant with respect to the trigger particle transverse momentum, and comparable to the previous lower root s measurements. The width of the away-side peak is shown to be a convolution of j(T) with the fragmentation variable, z, and the partonic transverse momentum, k(T). The is determined through a combined analysis of the measured pi(0) inclusive and associated spectra using jet-fragmentation functions measured in e(+)e(-) collisions. The final extracted values of k(T) are then determined to also be independent of the trigger particle transverse momentum, over the range measured, with value of root =2.68 +/- 0.07(stat)+/- 0.34(sys) GeV/c.
Published: 2006
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