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Journal Articles

Measurement of time-dependent $$CP$$ asymmetries in $$B^{0}to K_S^0 eta gamma$$ decays

Nakano, Hiroshi*; Tanida, Kiyoshi; Belle Collaboration*; 188 of others*

Physical Review D, 97(9), p.092003_1 - 092003_10, 2018/05

AA2018-0584.pdf:0.54MB

https://doi.org/10.1103/PhysRevD.97.092003
 Times Cited Count：7 Percentile：37.62(Astronomy & Astrophysics)

Journal Articles

Pressure studies on the antiferromagnetic Kondo semiconductor Ce(Ru$$_{1-x}$$Rh$$_x$$)$$_2$$Al$$_{10}$$ (x = 0,0.1)

Tanida, Hiroshi*; Kitagawa, Kentaro*; Tateiwa, Naoyuki; Sera, Masafumi*; Nishioka, Takashi*

Physical Review B, 96(23), p.235131_1 - 235131_7, 2017/12

https://doi.org/10.1103/PhysRevB.96.235131
 Times Cited Count：1 Percentile：5.94(Materials Science, Multidisciplinary)

We have done high pressure experiments on Ce(Ru$$_{1-x}$$Rh$$_x$$)$$_2$$Al$$_{10}$$ (x = 0 and 0.1) to study pressure-induced phase transitions from the antiferromagnetic to paramagnetic state at $$P_c$$. Experimental data of the electrical resistivity suggest that the $$c$$-$$f$$ hybridization gap could be not necessary to form the unusual AFM order. The pressure effects on the magnetic susceptibility is also studied. We discuss a difference in the pressure response of the magnetic susceptibility based the electronic state between x = 0 and 0.1.

Journal Articles

Studies of high density baryon matter with high intensity heavy-ion beams at J-PARC

Sako, Hiroyuki; Harada, Hiroyuki; Sakaguchi, Takao*; Chujo, Tatsuya*; Esumi, Shinichi*; Gunji, Taku*; Hasegawa, Shoichi; Hwang, S.; Ichikawa, Yudai; Imai, Kenichi; et al.

Nuclear Physics A, 956, p.850 - 853, 2016/12

https://doi.org/10.1016/j.nuclphysa.2016.03.030
 Times Cited Count：12 Percentile：65.66(Physics, Nuclear)

Journal Articles

Influence of electron doping on magnetic order in CeRu$$_2$$Al$$_{10}$$

Kobayashi, Riki*; Kaneko, Koji; Saito, Kotaro*; Mignot, J.-M.*; Andr$'e$, G.*; Robert, J.*; Wakimoto, Shuichi; Matsuda, Masaaki*; Chi, S.*; Haga, Yoshinori; et al.

Journal of the Physical Society of Japan, 83(10), p.104707_1 - 104707_5, 2014/10

https://doi.org/10.7566/JPSJ.83.104707
 Times Cited Count：17 Percentile：68.53(Physics, Multidisciplinary)

Journal Articles

Multipole order and fluctuation in Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$ studied by resonant X-ray diffraction

Matsumura, Takeshi*; Michimura, Shinji*; Inami, Toshiya; Otsubo, Toru*; Tanida, Hiroshi*; Iga, Fumitoshi*; Sera, Masafumi*

JPS Conference Proceedings (Internet), 3, p.014008_1 - 014008_6, 2014/06

https://doi.org/10.7566/JPSCP.3.014008

We study the $$T_{beta}$$-type antiferro-octupole (AFO) ordered state of Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$ below 1.5 K by resonant X-ray diffraction in magnetic fields. Multipole moments induced by the field in the AFO phase are identified. In a mean-field model for the $$T_{beta}$$ AFO order within the $$Gamma_8$$ quartet crystal-field ground state, the $$O_{22}$$ and $$O_{20}$$ antiferroquadrupoles (AFQ) are expected as mostly induced AFQ. However, in contrast to this expectation, the main induced moment is found to be the $$O_{xy}$$-type AFQ.

Journal Articles

Evidence for hidden quadrupolar fluctuations behind the octupole order in Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$ from resonant X-ray diffraction in magnetic fields

Matsumura, Takeshi*; Michimura, Shinji*; Inami, Toshiya; Otsubo, Toru*; Tanida, Hiroshi*; Iga, Fumitoshi*; Sera, Masafumi*

Physical Review B, 89(1), p.014422_1 - 014422_13, 2014/01

https://doi.org/10.1103/PhysRevB.89.014422
 Times Cited Count：14 Percentile：52.23(Materials Science, Multidisciplinary)

The multipole ordered phase in Ce$$_{0.7}$$La$$_{0.3}$$B$$_6$$ (phase IV) has been studied by resonant X-ray diffraction in magnetic fields. By utilizing diamond X-ray phase plates to rotate the incident linear polarization and a conventional crystal analyzer system, full linear polarization analysis has been performed to identify the order parameters. The analysis shows that the $$Gamma_{rm 5g}$$ quadrupoles are more induced by the field than the $$Gamma_{rm 3g}$$ quadrupoles in phase IV, in disagreement with mean-field calculations, in which the $$Gamma_{rm 3g}$$ quadrupole is the main induced moment. Hence, we consider that large fluctuations of the $$Gamma_{rm 5g}$$ quadrupole is hidden behind the primary ordering of the octupole.

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

https://doi.org/10.1103/PhysRevC.83.064903
 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

https://doi.org/10.1103/PhysRevC.83.044912
 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

$$mu^+$$ diffusion in cubic $$f$$-electron compounds observed by high transverse field $$mu^+$$SR

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki*; Nishida, Nobuhiko*; Heffner, R. H.; Aoki, Yuji*; Suzuki, Hiroyuki*; Onimaru, Takahiro*; Tanida, Hiroshi*; Takagi, Shigeru*

Journal of Physics; Conference Series, 225, p.012021_1 - 012021_6, 2010/06

https://doi.org/10.1088/1742-6596/225/1/012021
 Times Cited Count：2 Percentile：66.93(Physics, Applied)

The diffusion of positive muon $$mu^+$$ in condensed matter has been investigated for many years by using $$mu^+$$ spin rotation/relaxation ($$mu^+$$SR) technique. The $$mu^+$$SR studies have provided deep insight into quantum diffusion at low temperatures as well as hopping process at high temperatures, which are closely related to hydrogen dynamics in the dilute limit. We here report transverse field (TF) $$mu^+$$SR studies of the $$mu^+$$ diffusion in cubic $$f$$-electron compounds PrPb$$_3$$ and SmAg$$_2$$In. The $$mu^+$$ site splits into two magnetically labeled sites when high TF is applied to single-crystalline specimens along the [001] direction. The $$mu^+$$SR lines show drastic variation according to the $$mu^+$$ motion between the magnetically labeled sites. From detailed analysis of the $$mu^+$$SR lines, we deduced $$mu^+$$ hopping parameters for both compounds.

Oral presentation

$$mu$$SR study in $$Gamma_8$$ ground state system SmAg$$_2$$In

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki*; Takagi, Shigeru*; Tanida, Hiroshi*; Suzuki, Hiroyuki*

no journal, , 

no abstracts in English

Oral presentation

Resonant X-ray diffraction study of multipole ordering in DyPd$$_3$$S$$_4$$

Michimura, Shinji; Inami, Toshiya; Otsubo, Toru*; Matsumura, Takeshi*; Tanida, Hiroshi*; Sera, Masafumi*; Matsuoka, Eiichi*; Watahiki, Masanori*; Tanigaki, Katsumi*; Onodera, Hideya*

no journal, , 

Oral presentation

Resonant X-ray diffraction study of Ce$$_{0.7}$$La$$_{0.3}$$B$$_{6}$$ in magnetic field

Michimura, Shinji; Inami, Toshiya; Otsubo, Toru*; Matsumura, Takeshi*; Tanida, Hiroshi*; Sera, Masafumi*; Iga, Fumitoshi*

no journal, , 

no abstracts in English

Oral presentation

Study of a multipole ordering in DyPd$$_3$$S$$_4$$ by a resonant X-ray diffraction

Michimura, Shinji; Inami, Toshiya; Otsubo, Toru*; Matsumura, Takeshi*; Tanida, Hiroshi*; Sera, Masafumi*; Matsuoka, Eiichi*; Watahiki, Masanori*; Tanigaki, Katsumi*; Onodera, Hideya*

no journal, , 

no abstracts in English

Oral presentation

Effect of the Ru-site substitution on CeRu$$_2$$Al$$_{10}$$, 3

Kobayashi, Riki; Kaneko, Koji; Wakimoto, Shuichi; Haga, Yoshinori; Matsuda, Tatsuma; Yamamoto, Etsuji; Robert, J.*; Mignot, J.-M.*; Andr$'e$, G.*; Matsuda, Masaaki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Elucidation of high ordering temperature in CeRu$$_{2}$$Al$$_{10}$$ using Rh substitution

Kobayashi, Riki; Kaneko, Koji; Wakimoto, Shuichi; Haga, Yoshinori; Matsuda, Tatsuma; Yamamoto, Etsuji; Robert, J.*; Mignot, J.-M.*; Andr$'e$, G.*; Matsuda, Masaaki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Hard X-ray photoelectron spectroscopy study of radiation effects of Pt/Y$$_{3}$$Fe$$_{5}$$O$$_{12}$$

Kobata, Masaaki; Yoshii, Kenji; Fukuda, Tatsuo; Kawasaki, Ikuto; Satou, Yukihiko; Tanida, Hajime; Okane, Tetsuo; Yamagami, Hiroshi; Yaita, Tsuyoshi; Harii, Kazuya; et al.

no journal, , 

We have investigated the electronic structures of Pt/Y$$_{3}$$Fe$$_{5}$$O$$_{12}$$ thin films irradiated by gamma ray and heavy particles. Investigating details of this system is interesting from a possible application of waste heat recovery using the spin Seebeck effect (SSE) due to a tolerance against a presence of atomic defect. Irradiation of $$^{60}$$Co gamma ray does not affect the spectral profiles such as Fe 2$it{p}$, a fact being consistent with the gamma-ray tolerance of SSE as reported previously. On the other hand, the irradiation of Au particles was found to lead to a chemical shift of some photoelectron peaks, suggesting a possible defect of some ions such as Fe$$^{3+}$$.

16 (Records 1-16 displayed on this page)
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