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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:28 Percentile:72.42(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:176 Percentile:99.41(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

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:169 Percentile:98.47(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

Dependence of volume phase transition temperature of poly(acryloyl-L-proline methyl ester) gel on hydrophobic tail length of anionic surfactants

Yoshida, Masaru; Asano, Masaharu; Omichi, Hideki; Kamimura, Wataru*; Kumakura, Minoru*; Katakai, Ryoichi*

Macromolecules, 30(9), p.2795 - 2796, 1997/05

 Times Cited Count:16 Percentile:58.08(Polymer Science)

no abstracts in English

Journal Articles

Reversible on-off switch function of ion-track pores for thermo-responsive films based on copolymers consisting of diethyleneglycol-bis-allylcarbonate and acryloyl-L-proline methyl ester

Yoshida, Masaru; Nagaoka, Noiyasu*; Asano, Masaharu; Omichi, Hideki; Kubota, Hitoshi*; Ogura, K.*; Vetter, J.*; Spohr, R.*; Katakai, Ryoichi*

Journal of Nuclear Materials, 122(1), p.39 - 44, 1997/00

no abstracts in English

Journal Articles

Application of ion beams to synthesis of environmentally responsive track membranes

Omichi, Hideki; Yoshida, Masaru; Asano, Masaharu; Nagaoka, Noiyasu*; Kubota, Hitoshi*; Katakai, Ryoichi*; Spohr, R.*; Reber, N.*; Wolf, A.*; G.M.Alder*; et al.

Nuclear Instruments and Methods in Physics Research B, 131(1-4), p.350 - 356, 1997/00

 Times Cited Count:20 Percentile:81.06(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Radiation-induced polymerization of unsaturated phospholipid mixtures for the synthesis of artificial red cells

Hosoi, Fumio; Omichi, Hideki; Akama, Kazuhiko*; *; *; *

Nuclear Instruments and Methods in Physics Research B, 131(1-4), p.329 - 334, 1997/00

 Times Cited Count:9 Percentile:59.8(Instruments & Instrumentation)

no abstracts in English

Journal Articles

A New ceramic fuel for almost complete burning of plutonium in light water reactor

Muromura, Tadasumi; Yamashita, Toshiyuki; Omichi, Toshihiko; Akie, Hiroshi; Takano, Hideki

Proc. of 14th Int. Japan-Korea Seminar on Ceramics, p.127 - 131, 1997/00

no abstracts in English

Journal Articles

Substrate-specific functional membranes based on etched ion tracks

Yoshida, Masaru; Asano, Masaharu; Omichi, Hideki; Spohr, R.*; Katakai, Ryoichi*

Radiat. Meas., 28(1-6), p.799 - 810, 1997/00

 Times Cited Count:12 Percentile:67.96(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Real-time in-situ observation of PVD of N-vinylcarbazole with FTIR-RAS

Tamada, Masao; ; Omichi, Hideki

Thin Solid Films, 293(1-2), p.113 - 116, 1997/00

 Times Cited Count:4 Percentile:33.07(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Real-time in situ observation of photo-induced vapor deposition polymerization of N-vinylcarbazole with Fourier transform IR reflection absorption spectroscopy

Tamada, Masao; ; Omichi, Hideki

Thin Solid Films, 292(1-2), p.164 - 168, 1997/00

 Times Cited Count:7 Percentile:46.48(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Synthesis of environmentally responsive porous membranes by ion beam irradiation

Omichi, Hideki; Yoshida, Masaru; Asano, Masaharu; Katakai, Ryoichi*; Spohr, R.*; Vetter, J.*

Ionics, 22(SUPPL.1), p.27 - 32, 1996/06

no abstracts in English

Journal Articles

Polymerization, self-bridging, and degradation of acryloyl- and methacryloyl-L-proline methyl esters induced by radiation and characteristics of gel swelling

Yoshida, Masaru; Safranj, A.; Omichi, Hideki; Katakai, Ryoichi*

Macromolecules, 29(6), p.2321 - 2323, 1996/00

 Times Cited Count:41 Percentile:82.16(Polymer Science)

no abstracts in English

Journal Articles

Novel thin film with cylindrical nanopores that open and close depending on temperature: First successful synthesis

Yoshida, Masaru; Asano, Masaharu; Safranj, A.; Omichi, Hideki; Spohr, R.*; Vetter, J.*; Katakai, Ryoichi*

Macromolecules, 29(27), p.8987 - 8989, 1996/00

 Times Cited Count:53 Percentile:87.43(Polymer Science)

no abstracts in English

Journal Articles

Change of molecular orientation with post-polymerization of a thin film of N-methylolacrylamide prepared with VDP

Tamada, Masao; Omichi, Hideki; *

Thin Solid Films, 274, p.66 - 69, 1996/00

 Times Cited Count:4 Percentile:29.13(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Radiation-induced polymerization of a phospholipid for developing artificial red blood cells

Hosoi, Fumio; Omichi, Hideki; Akama, Kazuhiko*; Awai, K.*; Tokuyama, S.*; Sato, T.*

Nuclear Instruments and Methods in Physics Research B, 105(1-4), p.318 - 321, 1995/11

 Times Cited Count:1 Percentile:23.89(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Thermal switching of grafted single ion tracks

Reber, N.*; Omichi, Hideki; Spohr, R.*; Tamada, Masao; Wolf, A.*; Yoshida, Masaru

Nuclear Instruments and Methods in Physics Research B, 105(1-4), p.275 - 277, 1995/11

 Times Cited Count:23 Percentile:88.73(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Production of porous membranes

Omichi, Hideki

Radioisotopes, 44(10), p.744 - 758, 1995/10

no abstracts in English

Journal Articles

Pulsed NMR study of radiation polymerization and crosslinking of n-isopropylacrylamide

Safranj, A.; Yoshida, Masaru; Omichi, Hideki; Katakai, Ryoichi*

Radiation Physics and Chemistry, 46(4-6), p.987 - 990, 1995/09

 Times Cited Count:11 Percentile:71.91(Chemistry, Physical)

no abstracts in English

Journal Articles

Release control of 9-$$beta$$-D-arabinofuranosyladenine from thermo-responsive gels

Miyajima, Masaharu*; Yoshida, Masaru; Sato, Hiroshi*; Omichi, Hideki; Katakai, Ryoichi*; Higuchi, W. I.*

Radiation Physics and Chemistry, 46(2), p.199 - 201, 1995/08

 Times Cited Count:6 Percentile:54.95(Chemistry, Physical)

no abstracts in English

68 (Records 1-20 displayed on this page)