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Journal Articles

Event structure and double helicity asymmetry in jet production from polarized $$p + p$$ collisions at $$sqrt{s}$$ = 200 GeV

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Y.*; Al-Bataineh, H.*; Alexander, J.*; Aoki, K.*; Aphecetche, L.*; Armendariz, R.*; et al.

Physical Review D, 84(1), p.012006_1 - 012006_18, 2011/07

 Times Cited Count:29 Percentile:72.31(Astronomy & Astrophysics)

We report on the event structure and double helicity asymmetry ($$A_{LL}$$) of jet production in longitudinally polarized $$p + p$$ collisions at $$sqrt{s}$$ = 200 GeV. Photons and charged particles were measured by the PHENIX experiment. Event structure was compared with the results from PYTHIA event generator. The production rate of reconstructed jets is satisfactorily reproduced with the next-to-leading-order perturbative QCD calculation. We measured $$A_{LL}$$ = -0.0014 $$pm$$ 0.0037 at the lowest $$P_T$$ bin and -0.0181 $$pm$$ 0.0282 at the highest $$P_T$$ bin. The measured $$A_{LL}$$ is compared with the predictions that assume various $$Delta G(x)$$ distributions.

Journal Articles

Identified charged hadron production in $$p + p$$ collisions at $$sqrt{s}$$ = 200 and 62.4 GeV

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Armendariz, R.*; et al.

Physical Review C, 83(6), p.064903_1 - 064903_29, 2011/06

 Times Cited Count:184 Percentile:99.44(Physics, Nuclear)

Transverse momentum distributions and yields for $$pi^{pm}, K^{pm}, p$$, and $$bar{p}$$ in $$p + p$$ collisions at $$sqrt{s}$$ = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the RHIC. We present the inverse slope parameter, mean transverse momentum, and yield per unit rapidity at each energy, and compare them to other measurements at different $$sqrt{s}$$ collisions. We also present the scaling properties such as $$m_T$$ and $$x_T$$ scaling and discuss the mechanism of the particle production in $$p + p$$ collisions. The measured spectra are compared to next-to-leading order perturbative QCD calculations.

Journal Articles

Azimuthal correlations of electrons from heavy-flavor decay with hadrons in $$p+p$$ and Au+Au collisions at $$sqrt{s_{NN}}$$ = 200 GeV

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Aramaki, Y.*; et al.

Physical Review C, 83(4), p.044912_1 - 044912_16, 2011/04

 Times Cited Count:8 Percentile:49.7(Physics, Nuclear)

Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled $$p+p$$ collisions. Here we extend these studies to two particle correlations where one particle is an electron from the decay of a heavy flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interaction between heavy quarks and the quark-gluon matter. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to $$p+p$$ collisions.

Journal Articles

Measurement of neutral mesons in $$p$$ + $$p$$ collisions at $$sqrt{s}$$ = 200 GeV and scaling properties of hadron production

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Y.*; Al-Bataineh, H.*; Alexander, J.*; Aoki, K.*; Aphecetche, L.*; Armendariz, R.*; et al.

Physical Review D, 83(5), p.052004_1 - 052004_26, 2011/03

 Times Cited Count:175 Percentile:98.48(Astronomy & Astrophysics)

The PHENIX experiment at RHIC has measured the invariant differential cross section for production of $$K^0_s$$, $$omega$$, $$eta'$$ and $$phi$$ mesons in $$p + p$$ collisions at $$sqrt{s}$$ = 200 GeV. The spectral shapes of all hadron transverse momentum distributions are well described by a Tsallis distribution functional form with only two parameters, $$n$$ and $$T$$, determining the high $$p_T$$ and characterizing the low $$p_T$$ regions for the spectra, respectively. The integrated invariant cross sections calculated from the fitted distributions are found to be consistent with existing measurements and with statistical model predictions.

Journal Articles

Neutron activation for ITER

Barnes, C. W.*; Loughlin, M. J.*; Nishitani, Takeo

Review of Scientific Instruments, 68(1), p.577 - 580, 1997/01

 Times Cited Count:26 Percentile:82.92(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Operation of a simulated non-steady tokamak fuel loop using the tritium systems test assembly

Konishi, Satoshi; Yamanishi, Toshihiko; Enoeda, Mikio; Hayashi, Takumi; Ohira, Shigeru; Yamada, Masayuki; Suzuki, Takumi; Okuno, Kenji; Sherman, R. H.*; Willms, R. S.*; et al.

Fusion Engineering and Design, 28, p.258 - 264, 1995/00

 Times Cited Count:4 Percentile:43.46(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Separation characteristics of cryogenic distillation column having feedback stream; Separation experiment with H-D system

Yamanishi, Toshihiko; Hayashi, Takumi; Nakamura, Hirofumi; Okuno, Kenji; Sherman, R. H.*; Taylor, D.*; Barnes, J. W.*; Bartlit, J. R.*

JAERI-M 93-188, 31 Pages, 1993/10

JAERI-M-93-188.pdf:0.8MB

no abstracts in English

JAEA Reports

Test of the scroll pump in the JAERI fuel cleanup system in the Tritium Systems Test Assembly; JFCU scroll pump test and result, JFCU stand alone tritium test 2

Hayashi, Takumi; Konishi, Satoshi; Ohira, Shigeru; Nakamura, Hirofumi; Inoue, Masahiko*; Watanabe, Tetsuo*; Hirata, Kazuhiro*; Naruse, Yuji; Okuno, Kenji; Barnes, J. W.*; et al.

JAERI-M 93-094, 54 Pages, 1993/03

JAERI-M-93-094.pdf:1.32MB

no abstracts in English

JAEA Reports

Tests of the JAERI fuel cleanup system with deuterium at the Tritium Systems Test Assembly; JFCU stand alone deuterium test, JFCU stand alone deuterium test 2

Konishi, Satoshi; Ohira, Shigeru; Hayashi, Takumi; Inoue, Masahiko*; Watanabe, Tetsuo*; Naruse, Yuji; Okuno, Kenji; Barnes, J. W.*; W.Harbin*; Bartlit, J. R.*; et al.

JAERI-M 93-089, 46 Pages, 1993/03

JAERI-M-93-089.pdf:1.26MB

no abstracts in English

JAEA Reports

Test of the palladium diffuser in the JAERI fuel cleanup system in the Tritium Systems Test Assembly

Konishi, Satoshi; Ohira, Shigeru; Hayashi, Takumi; Watanabe, Tetsuo*; Inoue, Masahiko*; Naruse, Yuji; Okuno, Kenji; Barnes, J. W.*; W.Harbin*; Bartlit, J. R.*; et al.

JAERI-M 93-088, 18 Pages, 1993/03

JAERI-M-93-088.pdf:0.47MB

no abstracts in English

JAEA Reports

Test of the cold traps in the JAERI fuel cleanup system in the Tritium Systems Test Assembly

Ohira, Shigeru; Konishi, Satoshi; Naruse, Yuji; Okuno, Kenji; Barnes, J. W.*; W.Harbin*; Bartlit, J. R.*; Anderson, J. L.*

JAERI-M 93-087, 29 Pages, 1993/03

JAERI-M-93-087.pdf:0.62MB

no abstracts in English

JAEA Reports

Joint operation of TSTA under the collaboration between JAERI and DOE; TSTA loop run October 1990, from October 1990 tritium run test plan and result, TTA-TP-100-19

Konishi, Satoshi; Ohira, Shigeru; Inoue, Masahiko*; Watanabe, Tetsuo*; Naruse, Yuji; Okuno, Kenji; Barnes, J. W.*; Sherman, R. H.*; Bartlit, J. R.*; Anderson, J. L.*

JAERI-M 93-085, 40 Pages, 1993/03

JAERI-M-93-085.pdf:0.8MB

no abstracts in English

JAEA Reports

Joint operation of the TSTA under the collaboration between JAERI and U.S.-DOE; Detail performance of the J-FCU, 25 days extended TSTA loop operation on April-May 1992

Hayashi, Takumi; Konishi, Satoshi; Nakamura, Hirofumi; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Barnes, J. W.*; W.Harbin*; Anderson, J. L.*; et al.

JAERI-M 93-084, 32 Pages, 1993/03

JAERI-M-93-084.pdf:1.14MB

no abstracts in English

JAEA Reports

Joint operation of the TSTA under the collaboration between JAERI and U.S.-DOE; TSTA extended loop operation with 100 grams of tritium on April-May, 1992

Hayashi, Takumi; Nakamura, Hirofumi; Konishi, Satoshi; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Anderson, J. L.*; Sherman, R. H.*; Willms, R. S.*; et al.

JAERI-M 93-083, 54 Pages, 1993/03

JAERI-M-93-083.pdf:1.64MB

no abstracts in English

JAEA Reports

JAERI fuel cleanup system (J-FCU) stand-alone tritium test at the TSTA; J-FCU tritium test with full impurities on February, 1992

Hayashi, Takumi; Nakamura, Hirofumi; Konishi, Satoshi; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Barnes, J. W.*; W.Harbin*; Bartlit, J. R.*; et al.

JAERI-M 93-082, 32 Pages, 1993/03

JAERI-M-93-082.pdf:1.03MB

no abstracts in English

JAEA Reports

Joint operation of the TSTA with the J-FCU under the collaboration between JAERI and U.S.-DOE; A First integrated tritium test between J-FCU and ISS on October, 1991

Hayashi, Takumi; Nakamura, Hirofumi; Konishi, Satoshi; Yamanishi, Toshihiko; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Anderson, J. L.*; Barnes, J. W.*; et al.

JAERI-M 93-081, 35 Pages, 1993/03

JAERI-M-93-081.pdf:1.19MB

no abstracts in English

JAEA Reports

JAERI fuel cleanup system (J-FCU) stand-alone tritium test at the TSTA; First J-FCU test with one gram of tritium on June 1991

Konishi, Satoshi; Hayashi, Takumi; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Barnes, J. W.*; W.Harbin*; Bartlit, J. R.*; Anderson, J. L.*

JAERI-M 93-080, 29 Pages, 1993/03

JAERI-M-93-080.pdf:0.86MB

no abstracts in English

Journal Articles

Extended operation of reactor-scale fusion fuel loop under US-Japan collaboration

Konishi, Satoshi; Hayashi, Takumi; Yamanishi, Toshihiko; Nakamura, Hirofumi; Naruse, Yuji; Okuno, Kenji; Sherman, R. H.*; Willms, R. S.*; Barnes, J. W.*; Bartlit, J. R.*; et al.

Proceedings of 15th IEEE/NPSS Symposium on Fusion Engineering, p.204 - 207, 1993/00

no abstracts in English

Journal Articles

Application of sidestream recycle to the separation of hydrogen isotopes by cryogenic distillation

Sherman, R. H.*; Taylor, D. J.*; Barnes, J. W.*; Yamanishi, Toshihiko; Enoeda, Mikio; Konishi, Satoshi; Okuno, Kenji

Proceedings of 15th IEEE/NPSS Symposium on Fusion Engineering, p.77 - 79, 1993/00

no abstracts in English

Journal Articles

Isotope separation system experiments at the TSTA

Inoue, Masahiko; Konishi, Satoshi; Yamanishi, Toshihiko; Ohira, Shigeru; Watanabe, Tetsuo*; Okuno, Kenji; Naruse, Yuji; Sherman, R. H.*; Barnes, J. W.*; Bartlit, J. R.*; et al.

Fusion Technology, 21(2P2), p.293 - 298, 1992/03

 Times Cited Count:3 Percentile:35.32(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Early experiments of JAERI fuel cleanup system at the tritium systems test assembly

Konishi, Hiroyuki; Inoue, Masahiko*; Hayashi, Takumi; Ohira, Shigeru; Watanabe, Tetsuo*; Okuno, Kenji; Naruse, Yuji; Barnes, J. W.*; Bartlit, J. R.*; Anderson, J. L.*

Fusion Engineering and Design, 18, p.33 - 37, 1991/00

 Times Cited Count:4 Percentile:47.84(Nuclear Science & Technology)

no abstracts in English

21 (Records 1-20 displayed on this page)