The $n n$ Scattering Length From the Photon Spectra of the Reactions $\pi^- d \to \gamma n n$ and $\pi^- p \to \gamma n$

Gabioud, B.; Alder, J.C.; Joseph, C.; Loude, J.F.; Morel, N.; Perrenoud, A.; Perroud, J.P.; Tran, M.T.; Winkelmann, E.; Dahme, W.

doi:10.1103/PhysRevLett.42.1508

The $n n$ Scattering Length From the Photon Spectra of the Reactions $\pi^- d \to \gamma n n$ and $\pi^- p \to \gamma n$

Apr, 1979

13 pages

Published in:

Phys.Rev.Lett. 42 (1979) 1508

DOI:

10.1103/PhysRevLett.42.1508

Report number:

Print-79-0334 (LAUSANNE)

View in:

reference search78 citations

Citations per year

Abstract: (APS)

A high-statistics photon spectrum from the reaction π−d→γnn, measured with a 0.72-meV-resolution pair spectrometer is compared with different theoretical spectra folded with the measured photon line from the reaction π−p→γn. A value of ann=−18.5±0.5 fm (theoretical error included) is deduced assuming a fixed value of rnn=2.8±0.1 fm. The problem of extracting rnn using the present theories is indicated.

References(12)

Figures(0)

- Sov.J.Part.Nucl. 6 139

On the Sign of the rho-omega Mixing Charge Asymmetric n n Potential

- Nucl.Phys.A 287 (1977) 381-389
•
DOI:
- 10.1016/0375-9474(77)90052-5

Nonlocal Contributions to the rho omega Charge-Symmetry-Breaking Force

James Lewis Friar
(
- Los Alamos
)
,
B.F. Gibson
(
- Los Alamos
)

- Phys.Rev.C 17 (1978) 1752
•
DOI:
- 10.1103/PhysRevC.17.1752

- Sov.J.Nucl.Phys. 17 602

Charge symmetry of the nuclear force as off-shell constraint

P.U. Sauer
(
- MIT, LNS and
- MIT
)

- Phys.Rev.C 11 (1975) 1786-1802
•
DOI:
- 10.1103/PhysRevC.11.1786

The n n S-Wave Scattering Length from the Neutron Spectra of the Reaction pi- d --> (2 n) gamma

R.M. Salter
(
- UCLA
)
,
R.P. Haddock
(
- UCLA
)
,
M. Zeller
(
- UCLA
)
,
D.R. Nygren
(
- Washington U., Seattle
)
,
J.B. Czirr
(
- Washington U., Seattle
)

- Nucl.Phys.A 254 (1975) 241-268
•
DOI:
- 10.1016/0375-9474(75)90215-8

LOW-ENERGY NEUTRON NEUTRON SCATTERING PARAMETERS

Myron Bander
(
- SLAC
)

- Phys.Rev. 134 (1964) B1052-B1057
•
DOI:
- 10.1103/PhysRev.134.B1052

Extraction of a(n n) from the Reaction pi- d --> gamma n n

- Phys.Rev.C 11 (1975) 90,
- Phys.Rev.C 12 (1975) 2130-2130 (erratum),
- Phys.Rev.C12 (1975) 2130.(Phys.Rev.C11 (1975) 90.)
•
DOI:
- 10.1103/PhysRevC.12.2130

Extraction of a(n n) from the Reaction pi- d --> gamma n n

- Phys.Rev.C 11 (1975) 90,
- Phys.Rev.C 12 (1975) 2130-2130 (erratum),
- Phys.Rev.C12 (1975) 2130.(Phys.Rev.C11 (1975) 90.)
•
DOI:
- 10.1103/PhysRevC.12.2130

Threshold Charged Pion Photoproduction and Radiative Pion Capture. 2. Pi- d --> gamma n n

- Phys.Rev.C 16 (1977) 327,
- Phys.Rev.C 17 (1978) 856-856 (erratum)
•
DOI:
- 10.1103/PhysRevC.16.327

Final State Interactions and Neutron Neutron Scattering Parameters

G.F. de Teramond
(
- Orsay and
- Costa Rica U.
)

- Phys.Rev.C 16 (1977) 1976-1983,
- Phys.Rev.C16 (1977) 1976-1983 and Orsay Centre Phys - LPTPE-77-11 (77,REC.APR) 28p
•
DOI:
- 10.1103/PhysRevC.16.1976

A HIGH RESOLUTION PAIR SPECTROMETER FOR MEDIUM-ENERGY PHOTONS

et al.

- Nucl.Instrum.Meth. 160 (1979) 93-114
•
DOI:
- 10.1016/0029-554X(79)90170-8

The nnn nnn Scattering Length From the Photon Spectra of the Reactions π−d→γnn\pi^- d \to \gamma n nπ−d→γnn and π−p→γn\pi^- p \to \gamma nπ−p→γn

Citations per year

The $n n$ Scattering Length From the Photon Spectra of the Reactions $\pi^- d \to \gamma n n$ and $\pi^- p \to \gamma n$