Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/7690
Title: The Muonic Hydrogen Lamb Shift Experiment at PSI
Authors: Kottmann, F. 
Amir, W. 
Biraben, F. 
Conde, C. 
Dhawan, S. 
Hänsch, T. 
Hartmann, F. 
Hughes, V. 
Huot, O. 
Indelicato, P. 
Julien, L. 
Knowles, P. 
Kazamias, S. 
Liu, Y.-W. 
Mulhauser, F. 
Nez, F. 
Pohl, R. 
Rabinowitz, P. 
Santos, J. dos 
Schaller, L. 
Schneuwly, H. 
Schott, W. 
Taqqu, D. 
Veloso, J. 
Issue Date: 2001
Citation: Hyperfine Interactions. 138:1 (2001) 55-60
Abstract: Abstract A measurement of the 2S Lamb shift in muonic hydrogen (µ-p) is being prepared at the Paul Scherrer Institute (PSI). The goal of the experiment is to measure the energy difference ?E(25 P 3/2-23 S 1/2) by laser spectroscopy (?˜6µm) to a precision of 30 ppm and to deduce the root mean square (rms) proton charge radius with 10-3 relative accuracy, 20 times more precise than presently known. An important prerequisite to this experiment is the availability of long-lived µp2S -atoms. A 2S-lifetime of ~1 µs – sufficiently long to perform the laser experiment – at H2 gas pressures of 1–2 hPa was deduced from recent measurements of the collisional 2S-quenching rate. A new low-energy negative muon beam yields an order of magnitude more muon stops in a small low-density gas volume than a conventional cloud muon beam. A stack of ultra-thin carbon foils is the key element of a fast detector for keV-muons. The development of a 2 keV X-ray detector and a 3-stage laser system providing 0.5 mJ laser pulses at 6 µm is on the way.
URI: http://hdl.handle.net/10316/7690
DOI: 10.1023/A:1020886314237
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
obra.pdf77.43 kBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

39
checked on Nov 8, 2019

WEB OF SCIENCETM
Citations

37
checked on Nov 7, 2019

Page view(s)

66
checked on Dec 11, 2019

Download(s)

44
checked on Dec 11, 2019

Google ScholarTM

Check

Altmetric

Dimensions


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.