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CERN Document Server Pronađeno je 2,046 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.25 sekundi 
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Microwave spectroscopic study of the hyperfine structure of antiprotonic $^3$He / The ASACUSA AD-3 Collaboration
In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic $^3$He. Two out of four measurable super-super-hyperfine {SSHF} transition lines of the $(n,L)=(36,34)$ state of antiprotonic $^3$He were observed. [...]
CERN-PH-EP-2013-112.- Geneva : CERN, 2013 - 12 p. - Published in : J. Phys. B 46 (2013) 125003 Draft (restricted): PDF; Fulltext: PDF; IOP Open Access article: PDF;
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2.
(91)
First observation of two hyperfine transitions in antiprotonic $^3$He / Friedreich, S. (Stefan Meyer Inst. Subatomare Phys.) ; Barna, D. (Tokyo U. ; Budapest, RMKI) ; Caspers, F. (CERN) ; Dax, A. (Tokyo U.) ; Hayano, R.S. (Tokyo U.) ; Hori, M. (Tokyo U. ; Munich, Max Planck Inst. Quantenopt.) ; Horvath, D. (Budapest, RMKI ; Debrecen, Inst. Nucl. Res.) ; Juhasz, B. (Stefan Meyer Inst. Subatomare Phys.) ; Kobayashi, T. (Tokyo U.) ; Massiczek, O. (Stefan Meyer Inst. Subatomare Phys.) et al.
We report on the first experimental results for microwave spectroscopy of the hyperfine structure of antiprotonic He-3. Due to the helium nuclear spin, antiprotonic He-3 has a more complex hyperfine structure than antiprotonic He-4 which has already been studied before. [...]
arXiv:1102.5286.- 2011 - 8 p. - Published in : Phys. Lett. B 700 (2011) 1-6 Fulltext: PDF; External link: Preprint
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3.
(55)
Microwave spectroscopic study of the hyperfine structure of antiprotonic helium-3 / Friedreich, Susanne (Stefan Meyer Inst. Subatomare Phys.) ; Barna, Daniel (Tokyo U. ; Budapest, RMKI) ; Caspers, Fritz (CERN) ; Dax, Andreas (Tokyo U.) ; Hayano, Ryugo S (Tokyo U.) ; Hori, Masaki (Tokyo U. ; Garching, Max Planck Inst.) ; Horváth, Dezső (Budapest, RMKI ; Debrecen, Inst. Nucl. Res.) ; Juhász, Bertalan (Stefan Meyer Inst. Subatomare Phys.) ; Kobayashi, Takumi (Tokyo U.) ; Massiczek, Oswald (Stefan Meyer Inst. Subatomare Phys.) et al.
In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic helium-3. [...]
arXiv:1303.2831. - 2013. - 15 p.
Preprint
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4.
(47)
ASACUSA Status Report / ASACUSA Collaboration
ASACUSA progress during 2009 and plans for 2010
CERN-SPSC-2010-005 ; SPSC-SR-056. - 2010.
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5.
(46)
Two-photon laser spectroscopy of antiprotonic helium and the antiproton-to-electron mass ratio / Hori, Masaki (Garching, Max Planck Inst. ; Tokyo U.) ; Soter, Anna (Munich, Max Planck Inst. Quantenopt.) ; Barna, Daniel (Tokyo U. ; Budapest, RMKI) ; Andreas Dax, (Tokyo U.) ; Hayano, Ryugo (Tokyo U.) ; Friedreich, Susanne (Stefan Meyer Inst. Subatomare Phys.) ; Juhász, Bertalan (Stefan Meyer Inst. Subatomare Phys.) ; Pask, Thomas (Stefan Meyer Inst. Subatomare Phys.) ; Widmann, Eberhard (Stefan Meyer Inst. Subatomare Phys.) ; Horváth, Dezső (Budapest, RMKI ; Debrecen, Inst. Nucl. Res.) et al.
Physical laws are believed to be invariant under the combined transformations of charge, parity and time reversal (CPT symmetry). This implies that an antimatter particle has exactly the same mass and absolute value of charge as its particle counterpart. [...]
arXiv:1304.4330.- 2013 - 5 p. - Published in : Nature 475 (2011) 484-488
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6.
(45)
Method for laser spectroscopy of metastable pionic helium atoms / Hori, M (Munich, Max Planck Inst. Quantenopt.) ; Sótér, A (Munich, Max Planck Inst. Quantenopt.) ; Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt.) ; Barna, D (CERN) ; Dax, A (PSI, Villigen) ; Hayano, R S (Tokyo U.) ; Murakami, Y (Tokyo U.) ; Yamada, H (Tokyo U.)
The PiHe collaboration is currently attempting to carry out laser spectroscopy of metastable pionic helium atoms using the high-intensity π$^{−}$ beam of the ring cyclotron facility of the Paul Scherrer Institute. These atoms are heretofore hypothetical three-body Coulomb systems each composed of a helium nucleus, a π$^{−}$ occupying a Rydberg state, and an electron occupying the 1s ground state. [...]
2015 - 5 p. - Published in : Hyperfine Interact. 233 (2015) 83-87
In : 5th International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 15 - 19 Sep 2014, pp.83-87
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7.
(43)
Analysis of heavy ion fusion targets / Meyer-Ter-Vehn, J (Munich, Max Planck Inst. Quantenopt.) ; Murakami, M (Munich, Max Planck Inst. Quantenopt.)
1992 - Published in : Part. Accel.: 37-38 (1992) , pp. 519-530 Fulltext: PDF;
In : International Symposium on Heavy Ion Inertial Fusion, Monterey, CA, USA, 3 - 6 Dec 1990, pp.519-530
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8.
(42)
Segmented scintillators with SiPM readout for measuring antiproton annihilations / Soter, Anna (Munich, Max Planck Inst. Quantenopt.) ; Todoroki, Koichi (Tokyo U.) ; Kobayashi, Takumi (Tokyo U.) ; Barna, D (Wigner RCP, Budapest ; CERN) ; Horváth, Dezsõ (Wigner RCP, Budapest) ; Hori, Masaki (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.)
SISSA, 2015 - Published in : PoS TIPP2014 (2015) 286 Fulltext: PDF; External link: Published version from PoS
In : International Conference on Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014, pp.286
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9.
(41)
Calculation of transition probabilities and ac Stark shifts in two-photon laser transitions of antiprotonic helium / Hori, Masaki (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Korobov, Vladimir I (Dubna, JINR)
Numerical ab initio variational calculations of the transition probabilities and ac Stark shifts in two-photon transitions of antiprotonic helium atoms driven by two counter-propagating laser beams are presented. We found that sub-Doppler spectroscopy is in principle possible by exciting transitions of the type (n,L)->(n-2,L-2) between antiprotonic states of principal and angular momentum quantum numbers n~L-1~35, first by using highly monochromatic, nanosecond laser beams of intensities 10^4-10^5 W/cm^2, and then by tuning the virtual intermediate state close (e.g., within 10-20 GHz) to the real state (n-1,L-1) to enhance the nonlinear transition probability. [...]
arXiv:1002.2355.- 2010 - Published in : Phys. Rev. A 81 (2010) 062508 External link: Preprint
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10.
(38)
Hyperfine Structure Measurements of Antiprotonic $^3$He using Microwave Spectroscopy / Friedreich, Susanne
The goal of this project was to measure the hyperfine structure of $\overline{\text{p}}^3$He$^+$ using the technique of laser-microwave-laser spectroscopy [...]
CERN-THESIS-2012-317 - 178 p.

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