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1. Experiments towards resolving the proton charge radius puzzle

Author

Antognini A., Schuhmann K., Amaro F. D., Amaro P., Abdou-Ahmed M., Biraben F., Chen T.-L., Covita D. S., Dax A. J., Diepold M., Fernandes L. M. P., Franke B., Galtier S., Gouvea A. L., Götzfried J., Graf T., Hänsch T. W., Hildebrandt M., Indelicato P., Julien L., Kirch K., Knecht A., Kottmann F., Krauth J. J., Liu Y.-W., Machado J., Monteiro C. M. B., Mulhauser F., Nez F., Santos J. P., dos Santos J. M. F., Szabo C. I., Taqqu D., Veloso J. F. C. A., Voss A., Weichelt B., and Pohl R.

Subjects
Physics, QC1-999
Abstract

We review the status of the proton charge radius puzzle. Emphasis is given to the various experiments initiated to resolve the conflict between the muonic hydrogen results and the results from scattering and regular hydrogen spectroscopy.

Published
2016
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2. The next generation of laser spectroscopy experiments using light muonic atoms

Author

Schmidt, S., Willig, M., Haack, J., Horn, R., Adamczak, A., Ahmed, M. Abdou, Amaro, F. D., Amaro, P., Biraben, F., Carvalho, P., Chen, T. -L., Fernandes, L. M. P., Graf, T., Guerra, M., Hänsch, T. W., Hildebrandt, M., Huang, Y. -C., Indelicato, P., Julien, L., Kirch, K., Knecht, A., Kottmann, F., Krauth, J. J., Liu, Y. -W., Machado, J., Marszalek, M., Monteiro, C. M. B., Nez, F., Nuber, J., Patel, D. N., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Schulthess, I., Taqqu, D., Veloso, J. F. C. A., Wang, L. -B., Zeyen, M., Antognini, A., and Pohl, R.

Subjects
Physics - Atomic Physics
Abstract

Precision spectroscopy of light muonic atoms provides unique information about the atomic and nuclear structure of these systems and thus represents a way to access fundamental interactions, properties and constants. One application comprises the determination of absolute nuclear charge radii with unprecedented accuracy from measurements of the 2S$\,$-$\,$2P Lamb shift. Here, we review recent results of nuclear charge radii extracted from muonic hydrogen and helium spectroscopy and present experiment proposals to access light muonic atoms with $Z \geq 3$. In addition, our approaches towards a precise measurement of the Zemach radii in muonic hydrogen ($\mu$p) and helium ($\mu$$^{3}$He$^{+}$) are discussed. These results will provide new tests of bound-state quantum-electrodynamics in hydrogen-like systems and can be used as benchmarks for nuclear structure theories., Comment: 17 pages, 8 figures

Published
2018
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3. The proton radius puzzle

Author

Krauth, J. J., Schuhmann, K., Ahmed, M. Abdou, Amaro, F. D., Amaro, P., Biraben, F., Cardoso, J. M. R., Carvalho, M. L., Covita, D. S., Dax, A., Dhawan, S., Diepold, M., Fernandes, L. M. P., Franke, B., Galtier, S., Giesen, A., Gouvea, A. L., Götzfried, J., Graf, T., Guerra, M., Haack, J., Hänsch, T. W., Hildebrandt, M., Indelicato, P., Julien, L., Kirch, K., Knecht, A., Knowles, P., Kottmann, F., Bigot, E. -O. Le, Liu, Y. -W., Lopes, J. A. M., Ludhova, L., Machado, J., Monteiro, C. M. B., Mulhauser, F., Nebel, T., Nez, F., Rabinowitz, P., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Schaller, L. A., Schwob, C., Szabo, C. I., Taqqu, D., Veloso, J. F. C. A., Voss, A., Weichelt, B., Willig, M., Pohl, R., and Antognini, A.

Subjects
Physics - Atomic Physics
Abstract

High-precision measurements of the proton radius from laser spectroscopy of muonic hydrogen demonstrated up to six standard deviations smaller values than obtained from electron-proton scattering and hydrogen spectroscopy. The status of this discrepancy, which is known as the proton radius puzzle will be discussed in this paper, complemented with the new insights obtained from spectroscopy of muonic deuterium., Comment: Moriond 2017 conference, 8 pages, 4 figures

Published
2017

4. Experiments towards resolving the proton charge radius puzzle

Author

Antognini, A., Schuhmann, K., Amaro, F. D., Amaro, P., Abdou-Ahmed, M., Biraben, F., Chen, T. -L., Covita, D. S., Dax, A. J., Diepold, M., Fernandes, L. M. P., Franke, B., Galtier, S., Gouvea, A. L., Götzfried, J., Graf, T., Hänsch, T. W., Hildebrandt, M., Indelicato, P., Julien, L., Kirch, K., Knecht, A., Kottmann, F., Krauth, J. J., Liu, Y. -W., Machado, J., Monteiro, C. M. B., Mulhauser, F., Nez, F., Santos, J. P., Santos, J. M. F. dos, Szabo, C. I., Taqqu, D., Veloso, J. F. C. A., Voss, A., Weichelt, B., and Pohl, R.

Subjects
Physics - Atomic Physics
Abstract

We review the status of the proton charge radius puzzle. Emphasis is given to the various experiments initiated to resolve the conflict between the muonic hydrogen results and the results from scattering and regular hydrogen spectroscopy., Comment: 9 pages, Few Body Systems FB21 conference

Published
2015
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5. Muonic hydrogen cascade time and lifetime of the short-lived $2S$ state

Author

Ludhova, L., Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., Dax, A., Dhawan, S., Fernandes, L. M. P., Haensch, T. W., Hughes, V. W., Indelicato, P., Julien, L., Knowles, P. E., Kottmann, F., Liu, Y. -W., Lopes, J. A. M., Monteiro, C. M. B., Mulhauser, F., Nez, F., Pohl, R., Rabinowitz, P., Santos, J. M. F. dos, Schaller, L. A., Schwob, C., Taqqu, D., and Veloso, J. F. C. A.

Subjects
Physics - Atomic Physics
Abstract

Metastable ${2S}$ muonic-hydrogen atoms undergo collisional ${2S}$-quenching, with rates which depend strongly on whether the $\mu p$ kinetic energy is above or below the ${2S}\to {2P}$ energy threshold. Above threshold, collisional ${2S} \to {2P}$ excitation followed by fast radiative ${2P} \to {1S}$ deexcitation is allowed. The corresponding short-lived $\mu p ({2S})$ component was measured at 0.6 hPa $\mathrm{H}_2$ room temperature gas pressure, with lifetime $\tau_{2S}^\mathrm{short} = 165 ^{+38}_{-29}$ ns (i.e., $\lambda_{2S}^\mathrm{quench} = 7.9 ^{+1.8}_{-1.6} \times 10^{12} \mathrm{s}^{-1}$ at liquid-hydrogen density) and population $\epsilon_{2S}^\mathrm{short} = 1.70^{+0.80}_{-0.56}$ % (per $\mu p$ atom). In addition, a value of the $\mu p$ cascade time, $T_\mathrm{cas}^{\mu p} = (37\pm5)$ ns, was found., Comment: 4 pages, 3 figures

Published
2006
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6. Proposal for new experimental schemes to realize the Avogadro constant

Author

Biraben, F., Cadoret, M., Clad, P., Genevs, G., Gournay, P., Guellati-Khlifa, S., Julien, L., Juncar, P., De Mirandes, E., and Nez, F.

Subjects
Physics - Atomic Physics
Abstract

We propose two experimental schemes to determine and so to realize the Avogadro constant $N\_{A}$ at the level of 10$^{-7}$ or better with a watt balance experiment and a cold atom experiment measuring $h/m(X)$ (where $h$ is the Planck constant and $m(X)$ the mass of the atom $X$). We give some prospects about achievable uncertainties and we discuss the opportunity to test the existence of possible unknown correction factors for the Josephson effect and quantum Hall effect.

Published
2006
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7. Planar LAAPDs: Temperature Dependence, Performance, and Application in Low Energy X-ray Spectroscopy

Author

Ludhova, L., Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., Covita, D. S., Dax, A., Dhawan, S., Fernandes, L. M. P., Hansch, T. W., Hughes, V. W., Huot, O., Indelicato, P., Julien, L., Knowles, P. E., Kottmann, F., Lopes, J. A. M., Liu, Y. -W., Monteiro, C. M. B., Mulhauser, F., Nez, F., Pohl, R., Rabinowitz, P., Santos, J. M. F. dos, Schaller, L. A., Taqqu, D., and Veloso, J. F. C. A.

Subjects
Physics - Instrumentation and Detectors
Abstract

An experiment measuring the 2S Lamb shift in muonic hydrogen mup is being performed at the Paul Scherrer Institute, Switzerland. It requires small and compact detectors for 1.9 keV x rays (2P-1S transition) with an energy resolution around 25% at 2 keV, a time resolution better than 100 ns, a large solid angle coverage, and insensitivity to a 5 T magnetic field. We have chosen Large Area Avalanche Photodiodes (LAAPDs) from Radiation Monitoring Devices as x-ray detectors, and they were used during the last data taking period in 2003. For x-ray spectroscopy applications, these LAAPDs have to be cooled in order to suppress the dark current noise, hence, a series of tests were performed to choose the optimal operation temperature. Specifically, the temperature dependence of gain, energy resolution, dark current, excess noise factor, and detector response linearity was studied. Finally, details of the LAAPDs application in the muonic hydrogen experiment as well as their response to alpha particles are presented., Comment: 20 pages, 19 figures, submitted to Nucl. Instr. and Methods A

Published
2004
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8. Towards a Measurement of the Lamb Shift in Muonic Hydrogen

Author

Pohl, R., Biraben, F., Conde, C.A.N., Donche-Gay, C., Hänsch, T. W., Hartmann, F. J., Hauser, P., Hughes, V. W., Huot, O., Indelicato, P., Knowles, P., Kottmann, F., Liu, Y. -W., Markushin, V. E., Mulhauser, F., Nez, F., Petitjean, C., Rabinowitz, P., Santos, J. M. F. dos, Schaller, L. A., Schneuwly, H., Schott, W., Taqqu, D., Veloso, J. F. C. A., Beig, R., editor, Ehlers, J., editor, Frisch, U., editor, Hepp, K., editor, Hillebrandt, W., editor, Imboden, D., editor, Jaffe, R. L., editor, Kippenhahn, R., editor, Lipowsky, R., editor, Löhneysen, H. v., editor, Ojima, I., editor, Weidenmüller, H. A., editor, Wess, J., editor, Zittartz, J., editor, Karshenboim, Savely G., editor, Bassani, F., editor, Pavone, F.S., editor, Inguscio, M., editor, and Hänsch, T.W., editor

Published
2001
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9. Precision Spectroscopy of Atomic Hydrogen

Author

Biraben, F., Hänsch, T. W., Fischer, M., Niering, M., Holzwarth, R., Reichert, J., Udem, Th., Weitz, M., de Beauvoir, B., Schwob, C., Jozefowski, L., Hilico, L., Nez, F., Julien, L., Acef, O., Zondy, J. -J., Clairon, A., Beig, R., editor, Ehlers, J., editor, Frisch, U., editor, Hepp, K., editor, Hillebrandt, W., editor, Imboden, D., editor, Jaffe, R. L., editor, Kippenhahn, R., editor, Lipowsky, R., editor, Löhneysen, H. v., editor, Ojima, I., editor, Weidenmüller, H. A., editor, Wess, J., editor, Zittartz, J., editor, Karshenboim, Savely G., editor, Bassani, F., editor, Pavone, F.S., editor, Inguscio, M., editor, and Hänsch, T.W., editor

Published
2001
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10. The GBAR antimatter gravity experiment

Author

Pérez, P., Banerjee, D., Biraben, F., Brook-Roberge, D., Charlton, M., Cladé, P., Comini, P., Crivelli, P., Dalkarov, O., Debu, P., Douillet, A., Dufour, G., Dupré, P., Eriksson, S., Froelich, P., Grandemange, P., Guellati, S., Guérout, R., Heinrich, J. M., Hervieux, P.-A., Hilico, L., Husson, A., Indelicato, P., Jonsell, S., Karr, J.-P., Khabarova, K., Kolachevsky, N., Kuroda, N., Lambrecht, A., Leite, A. M. M., Liszkay, L., Lunney, D., Madsen, N., Manfredi, G., Mansoulié, B., Matsuda, Y., Mohri, A., Mortensen, T., Nagashima, Y., Nesvizhevsky, V., Nez, F., Regenfus, C., Rey, J.-M., Reymond, J.-M., Reynaud, S., Rubbia, A., Sacquin, Y., Schmidt-Kaler, F., Sillitoe, N., Staszczak, M., Szabo-Foster, C. I., Torii, H., Vallage, B., Valdes, M., Van der Werf, D. P., Voronin, A., Walz, J., Wolf, S., Wronka, S., and Yamazaki, Y.

Published
2015
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11. Is the proton radius a player in the redefinition of the International System of Units?

Author

Nez, F., Antognini, A., Amaro, F. D., Biraben, F., Cardoso, J. M. R., Covita, D., Dax, A., Dhawan, S., Fernandes, L., Giesen, A., Graf, T., Hänsch, T. W., Indelicato, P., Julien, L., Kao, C.-Y., Knowles, P. E., Le Bigot, E., Liu, Y.-W., Lopes, J. A. M., Ludhova, L., Monteiro, C. M. B., Mulhauser, F., Nebel, T., Rabinowitz, P., dos Santos, J. M. F., Schaller, L., Schuhmann, K., Schwob, C., Taqqu, D., Veloso, J. F. C. A., Kottmann, F., and Pohl, R.

Published
2011

12. The Gbar project, or how does antimatter fall?

Author

Indelicato, Paul, Chardin, G., Grandemange, P., Lunney, D., Manea, V., Badertscher, A., Crivelli, P., Curioni, A., Marchionni, A., Rossi, B., Rubbia, A., Nesvizhevsky, V., Brook-Roberge, D., Comini, P., Debu, P., Dupré, P., Liszkay, L., Mansoulié, B., Pérez, P., Rey, J.-M., Reymond, B., Ruiz, N., Sacquin, Y., Vallage, B., Biraben, F., Cladé, P., Douillet, A., Dufour, G., Guellati, S., Hilico, L., Lambrecht, A., Guérout, R., Karr, J.-P., Nez, F., Reynaud, S., Szabo, C. I., Tran, V.-Q., Trapateau, J., Mohri, A., Yamazaki, Y., Charlton, M., Eriksson, S., Madsen, N., van der Werf, D.P., Kuroda, N., Torii, H., Nagashima, Y., Schmidt-Kaler, F., Walz, J., Wolf, S., Hervieux, P.-A., Manfredi, G., Voronin, A., Froelich, P., Wronka, S., and Staszczak, M.

Published
2014
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13. The GBAR antimatter gravity experiment

Author

Pérez, P., primary, Banerjee, D., additional, Biraben, F., additional, Brook-Roberge, D., additional, Charlton, M., additional, Cladé, P., additional, Comini, P., additional, Crivelli, P., additional, Dalkarov, O., additional, Debu, P., additional, Douillet, A., additional, Dufour, G., additional, Dupré, P., additional, Eriksson, S., additional, Froelich, P., additional, Grandemange, P., additional, Guellati, S., additional, Guérout, R., additional, Heinrich, J. M., additional, Hervieux, P.-A., additional, Hilico, L., additional, Husson, A., additional, Indelicato, P., additional, Jonsell, S., additional, Karr, J.-P., additional, Khabarova, K., additional, Kolachevsky, N., additional, Kuroda, N., additional, Lambrecht, A., additional, Leite, A. M. M., additional, Liszkay, L., additional, Lunney, D., additional, Madsen, N., additional, Manfredi, G., additional, Mansoulié, B., additional, Matsuda, Y., additional, Mohri, A., additional, Mortensen, T., additional, Nagashima, Y., additional, Nesvizhevsky, V., additional, Nez, F., additional, Regenfus, C., additional, Rey, J.-M., additional, Reymond, J.-M., additional, Reynaud, S., additional, Rubbia, A., additional, Sacquin, Y., additional, Schmidt-Kaler, F., additional, Sillitoe, N., additional, Staszczak, M., additional, Szabo-Foster, C. I., additional, Torii, H., additional, Vallage, B., additional, Valdes, M., additional, Van der Werf, D. P., additional, Voronin, A., additional, Walz, J., additional, Wolf, S., additional, Wronka, S., additional, and Yamazaki, Y., additional

Published
2015
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14. Emulsion detectors for the antihydrogen detection in AEgIS

Author

Pérez, P., primary, Banerjee, D., additional, Biraben, F., additional, Brook-Roberge, D., additional, Charlton, M., additional, Cladé, P., additional, Comini, P., additional, Crivelli, P., additional, Dalkarov, O., additional, Debu, P., additional, Douillet, A., additional, Dufour, G., additional, Dupré, P., additional, Eriksson, S., additional, Froelich, P., additional, Grandemange, P., additional, Guellati, S., additional, Guérout, R., additional, Heinrich, J. M., additional, Hervieux, P.-A., additional, Hilico, L., additional, Husson, A., additional, Indelicato, P., additional, Jonsell, S., additional, Karr, J.-P., additional, Khabarova, K., additional, Kolachevsky, N., additional, Kuroda, N., additional, Lambrecht, A., additional, Leite, A. M. M., additional, Liszkay, L., additional, Lunney, D., additional, Madsen, N., additional, Manfredi, G., additional, Mansoulié, B., additional, Matsuda, Y., additional, Mohri, A., additional, Mortensen, T., additional, Nagashima, Y., additional, Nesvizhevsky, V., additional, Nez, F., additional, Regenfus, C., additional, Rey, J.-M., additional, Reymond, J.-M., additional, Reynaud, S., additional, Rubbia, A., additional, Sacquin, Y., additional, Schmidt-Kaler, F., additional, Sillitoe, N., additional, Staszczak, M., additional, Szabo-Foster, C. I., additional, Torii, H., additional, Vallage, B., additional, Valdes, M., additional, Van der Werf, D. P., additional, Voronin, A., additional, Walz, J., additional, Wolf, S., additional, Wronka, S., additional, and Yamazaki, Y., additional

Published
2015
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16. The size of the proton: From the Lamb-shift in muonic hydrogen

Author

Nebel, T., Antognini, A., Amaro, F. D., Biraben, F., Cardoso, J. M. R., Covita, D. S., Dax, A., Dhawan, S., Fernandes, L. M. P., Giesen, A., Graf, T., Hänsch, T. W., Indelicato, P., Julien, L., Kao, C.-Y., Knowles, P., Kottmann, F., Le Bigot, E., Liu, Y.-W., Lopes, J. A. M., Ludhova, L., Monteiro, C. M. B., Mulhauser, F., Nez, F., Rabinowitz, P., dos Santos, J. M. F., Schaller, L. A., Schuhmann, K., Schwob, C., Taqqu, D., Veloso, J. F. C. A., and Pohl, R.

Published
2012
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17. The Lamb-shift experiment in Muonic helium

Author

Nebel, T., Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Covita, D. S., Dax, A., Fernandes, L. M. P., Gouvea, A. L., Graf, T., Hänsch, T. W., Hildebrandt, M., Indelicato, P., Julien, L., Kirch, K., Kottmann, F., Liu, Y. -W., Monteiro, C. M. B., Nez, F., Santos, J. M. F. dos, Schuhmann, K., Taqqu, D., Veloso, J. F. C. A., Voss, A., and Pohl, R.

Published
2012
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18. Illuminating the proton radius conundrum: the μ[He.sup.+] lamb shift

Author

Antognini, A., Biraben, F., Cardoso, J.M.R., Covita, D.S., Dax, A., Fernandes, L.M.P., Gouvea, A.L., Graf, T., Hansch, T.W., Hildebrandt, M., Indelicato, P., Julien, L., Kirch, K., Kottmann, F., Liu, Y.-W., Monteiro, C.M.B., Mulhauser, F., Nebel, T., Nez, F., dos Santos, J.M.F., Schuhmann, K., Taqqu, D., Veloso, J.F.C.A., Voss, A., and Pohl, R.

Subjects
Quantum electrodynamics -- Research, Laser spectroscopy -- Methods, Protons -- Properties, Nuclear physics -- Research, Physics
Abstract

We plan to measure several 2S-2P transition frequencies in μ[sup.4][He.sup.+] and μ³[He.sup.+] by means of laser spectroscopy with an accuracy of 50 ppm. This will lead to a determination of the corresponding nuclear rms charge radii with a relative accuracy of 3 x [10.sup.-4], limited by the uncertainty of the nuclear polarization contribution. First, these measurements will help to solve the proton radius puzzle. Second, these very precise nuclear radii are benchmarks for ab initio few- nucleon theories and potentials. Finally when combined with an ongoing measurement of the 1S-2S transition in [He.sup.+], these measurements will lead to an enhanced bound-state QED test of the 1S Lamb shift in [He.sup.+]. PACS Nos: 36.10.Ee, 31.30.J, 31.15.ag, 21.10.Ft, 21.45.V, 21.60.De, 14.20.Dh Nous prevoyons mesurer les frequences de plusieurs transitions 2S-2P dans μ[sup.4][He.sup.+] et μ³[He.sup.+] par spectroscopie laser visant une precision de 50 ppm. Ceci aidera a determiner le rayon rms correspondant des charges nucleeaires avec une precision relative de 3 x [10.sup.-4], limitee par l'incertitude sur la contribution de la polarisation nucleeaire. Dans un premier temps, ces mesures aideront a solutionner le casse-tete du rayon du proton. Ensuite, ces valeurs tres precises des rayons nucleaires sont des criteres pour tester les potentiels et les theories ab initio de probleme a quelques nucleeons. Finalement, lorsque combineees avec les mesures courantes de la transition 1S-2S dans [He.sup.+], ces mesures meneront a des tests ameliores de calculs QED en etats lieis pour le decalage de Lamb dans [He.sup.+]. [Traduit par la Redaction], 1. Hydrogen and muonic hydrogen Historically, the simple spectral structure of hydrogen (H) and 'hydrogen-like' atoms has inspired path-breaking discoveries like quantum mechanics, discovery of the electron spin, and quantum [...]

Published
2011
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24. Status of the muonic hydrogen Lamb-shift experiment (1)

Author

Nebel, T., Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., Dax, A., Dhawan, S., Fernandes, L.M.P., Giesen, A., Hansch, T.W., Indelicato, P., Julien, L., Knowles, P.E., Kottmann, F., Le Bigot, E., Liu, Y.-W., Lopes, J.A.M., Ludhova, L., Monteiro, C.M.B., Mulhauser, F., Nez, F., Pohl, R., Rabinowitz, P., dos Santos, J.M.F., Schaller, L.A., Schuhmann, K., Schwob, C., Taqqu, D., and Veloso, J.F.C.A.

Subjects
Muons -- Properties -- Measurement, Hydrogen -- Composition -- Measurement, Physics, Composition, Measurement, Properties
Abstract

Abstract: The Lamb-shift experiment in muonic hydrogen ([μ.sup.-]p) aims to measure the energy difference between the [2S.sup.F=1.sub.1/2] [-2P.sup.F=2.sub.3/2] atomic levels to a precision of 30 ppm. This would allow the [...]

Published
2007

26. The Lamb-shift experiment in Muonic helium

Author

Nebel, T., primary, Amaro, F. D., additional, Antognini, A., additional, Biraben, F., additional, Cardoso, J. M. R., additional, Covita, D. S., additional, Dax, A., additional, Fernandes, L. M. P., additional, Gouvea, A. L., additional, Graf, T., additional, Hänsch, T. W., additional, Hildebrandt, M., additional, Indelicato, P., additional, Julien, L., additional, Kirch, K., additional, Kottmann, F., additional, Liu, Y. -W., additional, Monteiro, C. M. B., additional, Nez, F., additional, Santos, J. M. F. dos, additional, Schuhmann, K., additional, Taqqu, D., additional, Veloso, J. F. C. A., additional, Voss, A., additional, and Pohl, R., additional

Published
2012
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27. The size of the proton

Author

Nebel, T., primary, Antognini, A., additional, Amaro, F. D., additional, Biraben, F., additional, Cardoso, J. M. R., additional, Covita, D. S., additional, Dax, A., additional, Dhawan, S., additional, Fernandes, L. M. P., additional, Giesen, A., additional, Graf, T., additional, Hänsch, T. W., additional, Indelicato, P., additional, Julien, L., additional, Kao, C.-Y., additional, Knowles, P., additional, Kottmann, F., additional, Le Bigot, E., additional, Liu, Y.-W., additional, Lopes, J. A. M., additional, Ludhova, L., additional, Monteiro, C. M. B., additional, Mulhauser, F., additional, Nez, F., additional, Rabinowitz, P., additional, dos Santos, J. M. F., additional, Schaller, L. A., additional, Schuhmann, K., additional, Schwob, C., additional, Taqqu, D., additional, Veloso, J. F. C. A., additional, and Pohl, R., additional

Published
2011
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28. The Muonic Hydrogen Lamb Shift Experiment at PSI

Author

Kottmann, F., Amir, W., Biraben, F., Conde, C. A. N., Dhawan, S., Hänsch, T. W., Hartmann, F. J., Hughes, V. W., Huot, O., Indelicato, P., Julien, L., Knowles, P., Kazamias, S., Liu, Y.-W., Mulhauser, F., Nez, F., Pohl, R., Rabinowitz, P., dos Santos, J. M. F., Schaller, L. A., Schneuwly, H., Schott, W., Taqqu, D., and Veloso, J. F. C. A.

Published
2001
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30. Experiment to measure the Lamb shift in muonic hydrogen

Author

Pohl, R., Biraben, F., Conde, C.A.N., Donche Gay, C., Hänsch, T.W., Hartmann, F.J., Hauser, P., Hughes, V.W., Huot, O., Indelicato, P., Knowles, P., Kottmann, F., Liu, Y. W., Mulhauser, F., Nez, F., Petitjean, C., Rabinowitz, P., dos Santos, J.M.F., Schaller, L.A., Schneuwly, H., Schott, W., Simons, L.M., Taqqu, D., Trehin, F., and Veloso, J.F.C.A.

Published
2000
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31. Laser spectroscopy of the Lamb shift in muonic hydrogen

Author

Taqqu, D., Biraben, F., Conde, C.A.N., Hänsch, T.W., Hartmann, F.J., Hauser, P., Indelicato, P., Knowles, P., Kottmann, F., Mulhauser, F., Petitjean, C., Pohl, R., Rabinowitz, P., Rosenfelder, R., Santos, J.M.F., Schott, W., Simons, L.M., and Veloso, J.F.C.A.

Published
1999
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34. Planar LAAPDs: temperature dependence, performance, and application in low-energy X-ray spectroscopy

Author

Ludhova, L., Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., Covita, D.S., Dax, A., Dhawan, S., Fernandes, L.M.P., Hänsch, T.W., Hughes, V.-W., Huot, O., Indelicato, P., Julien, L., Knowles, P.E., Kottmann, F., Lopes, J.A.M., Liu, Y.-W., Monteiro, C.M.B., Mulhauser, F., Nez, F., Pohl, R., Rabinowitz, P., dos Santos, J.M.F., Schaller, L.A., Taqqu, D., and Veloso, J.F.C.A.

Published
2005
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35. Precision Spectroscopy of Atomic Hydrogen

Author

Biraben, F., primary, Hänsch, T. W., additional, Fischer, M., additional, Niering, M., additional, Holzwarth, R., additional, Reichert, J., additional, Udem, Th., additional, Weitz, M., additional, de Beauvoir, B., additional, Schwob, C., additional, Jozefowski, L., additional, Hilico, L., additional, Nez, F., additional, Julien, L., additional, Acef, O., additional, Zondy, J. -J., additional, and Clairon, A., additional

Published
2001
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36. Towards a Measurement of the Lamb Shift in Muonic Hydrogen

Author

Pohl, R., primary, Biraben, F., additional, Conde, C.A.N., additional, Donche-Gay, C., additional, Hänsch, T. W., additional, Hartmann, F. J., additional, Hauser, P., additional, Hughes, V. W., additional, Huot, O., additional, Indelicato, P., additional, Knowles, P., additional, Kottmann, F., additional, Liu, Y. -W., additional, Markushin, V. E., additional, Mulhauser, F., additional, Nez, F., additional, Petitjean, C., additional, Rabinowitz, P., additional, Santos, J. M. F. dos, additional, Schaller, L. A., additional, Schneuwly, H., additional, Schott, W., additional, Taqqu, D., additional, and Veloso, J. F. C. A., additional

Published
2001
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37. The muonic hydrogen Lamb-shift experiment

Author

Pohl, R, Antognini, A, Amaro, F D, Biraben, F, Cardoso, J MR, Conde, C AN, Dax, A, Dhawan, S, Fernandes, L MP, Hänsch, T W, Hartmann, F J, Hughes, V W, Huot, O, Indelicato, P, Julien, L, Knowles, P E, Kottmann, F, Liu, Y-W, Ludhova, L, Monteiro, C MB, Mulhauser, F, Nez, F, Rabinowitz, P, dos Santos, J MF, Schaller, L A, Schwob, C, Taqqu, D, and Veloso, J FCA

Published
2005

42. The next generation of laser spectroscopy experiments using light muonic atoms

Author

Schmidt, S, primary, Willig, M, additional, Haack, J, additional, Horn, R, additional, Adamczak, A, additional, Ahmed, M Abdou, additional, Amaro, F D, additional, Amaro, P, additional, Biraben, F, additional, Carvalho, P, additional, Chen, T-L, additional, Fernandes, L M P, additional, Graf, T, additional, Guerra, M, additional, Hänsch, T W, additional, Hildebrandt, M, additional, Huang, Y-C, additional, Indelicato, P, additional, Julien, L, additional, Kirch, K, additional, Knecht, A, additional, Kottmann, F, additional, Krauth, J J, additional, Liu, Y-W, additional, Machado, J, additional, Marszalek, M, additional, Monteiro, C M B, additional, Nez, F, additional, Nuber, J, additional, Patel, D N, additional, Rapisarda, E, additional, dos Santos, J M F, additional, Santos, J P, additional, Silva, P A O C, additional, Sinkunaite, L, additional, Shy, J-T, additional, Schuhmann, K, additional, Schulthess, I, additional, Taqqu, D, additional, Veloso, J F C A, additional, Wang, L-B, additional, Zeyen, M, additional, Antognini, A, additional, and Pohl, R, additional

Published
2018
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43. On the double peak structure of avalanche photodiode response to monoenergetic x-rays at various temperatures and bias voltages

Author

Monteiro, C.M.B., primary, Amaro, F.D., additional, Sousa, M.S., additional, Abdou-Ahmed, M., additional, Amaro, P., additional, Biraben, F., additional, Chen, T., additional, Covita, D.S., additional, Dax, A.J., additional, Diepold, M., additional, Fernandes, L.M.P., additional, Franke, B., additional, Galtier, S., additional, Gouvea, A.L., additional, Götzfried, J., additional, Graf, T., additional, Hänsch, T.W., additional, Hildebrandt, M., additional, Indelicato, P., additional, Julien, L., additional, Kirch, K., additional, Knecht, A., additional, Kottmann, F., additional, Krauth, J.J., additional, Liu, Y., additional, Machado, J., additional, Mulhauser, F., additional, Naar, B., additional, Nebel, T., additional, Nez, F., additional, Pohl, R., additional, Santos, J.P., additional, Santos, J.M.F. dos, additional, Schuhmann, K., additional, Szabo, C.I., additional, Taqqu, D., additional, Veloso, J.F.C.A., additional, and Antognini, A., additional

Published
2018
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44. LPTF frequency synthesis chain: results and improvement for the near future

Author

Touahri, D., Nez, F., Abed, M., Zondy, J.J., Acef, O., Hilico, L., Clairon, A., Millerioux, Y., Biraben, F., Julien, L., and Felder, R.

Subjects
Spectrum analysis -- Equipment and supplies, Diodes, Laser -- Usage, Frequency standards -- Measurement, Crystal optics -- Usage
Published
1995

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