Baglin, C.
DSIG/DU
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Large angle pi+ p elastic scattering at 10 gev/c

Baglin, C. ; Briandet, P. ; Carlson, P.J. ; et al.
Phys.Lett.B 47 (1973) 85-88, 1973.
Inspire Record 95213 DOI 10.17182/hepdata.28033

The angular distribution of π + p elastic scattering has been measured at an incident momentum of 10 GeV/ c . Nearly the whole angular range was covered in one experimental set-up. The pronounced dip at − t = 2.8 (GeV/ c ) 2 , observed at lower momenta, has diminished and is essentially a shoulder at 10 GeV/ c . The other structure at larger momentum transfers are also different in detail from what we observed at 5 GeV/ c . In the 90° c.m. region the differential cross-section is approximately one nb/(GeV/ c ) 2 , which is more than two orders of magnitude lower than at 5 GeV/ c .

1 data table match query
Table 1

THESE DATA ARE REPORTED MORE FULLY IN C. BAGLIN ET AL., NP B98, 365 (1975).


Large angle k+ p elastic scattering at 10 gev/c

Baglin, C. ; Briandet, P. ; Carlson, P.J. ; et al.
Phys.Lett.B 47 (1973) 89-92, 1973.
Inspire Record 95211 DOI 10.17182/hepdata.28014

K + p elastic scattering has been measured over nearly the whole angular range at an incident momentum of 10 GeV/ c . The differential cross-section is found to decrease smoothly in the forward direction to - t ≈ 2 (GeV/ c ) 2 , where there is a change in slope, followed by a further decrease to - t ≈ 6 (GeV/ c ) 2 . Around 90° c.m. the cross-section is approximately 1 nb/(GeV/ c ) 2 , which is more than two orders of magnitude lower than at 5 GeV/ c . The backward peak has no structure.

1 data table match query
Table 1

THESE DATA ARE REPORTED MORE FULLY IN C. BAGLIN ET AL., NP B98, 365 (1975).


Backward pi- p elastic scattering at 3 and 4 gev/c

Brabson, A. ; Calvelli, G. ; Cittolin, S. ; et al.
Phys.Lett.B 42 (1972) 283-286, 1972.
Inspire Record 85009 DOI 10.17182/hepdata.28198

We have measured dσ du for π − p elastic scattering at 3 and 4 GeV c in the ranges −0.119⩽ u ⩽0.113 and −0.233⩽ u ⩽0.088, respectively. A fit of the form d σ /d u = A exp ( Bu + Cu 2 ) gives B = 4.34±0.42 and C = 7.0±3.5 at 4 GeV c with χ 2 = 5.7 for 9 degrees of freedom; the simpler form d σ /d u = A exp( Bu ) gives B = 3.7 ± 0.3 with χ 2 = 9.6. At 3 GeV c we confirm with high statistics the structures already observed.

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


Backward π p elastic scattering at 2.85 and 3.30 GeV/c

Baker, W.F. ; Carlson, P.J. ; Chabaud, V. ; et al.
Phys.Lett.B 25 (1967) 361-364, 1967.
Inspire Record 1389663 DOI 10.17182/hepdata.29442

Backward elastic scattering has been measured for π + p at 2.85 and 3.30 GeV/ c and for π − p at 3.30 GeV/ c . The π + p angular distributions show steep backward peaks, whereas the π − p distribution is flatter. At 2.85 GeV/ c the π + p differential cross section close to 180° is more than twice that at 3.30 GeV/ c , supporting the assignment J P = 11 2 + for Δ δ (2420) resonance. The π + p data at 2.85 GeV/ c indicate the onset of a dip at cos θ c.m. ≈ −0.97.

3 data tables match query
Table 1

The data for cos(theta) = 1 is the extrapolation.

Table 2

The data for cos(theta) = 1 and U = 0 are the extrapolations.

Table 3

The data for cos(theta) = 1 and U = 0 are the extrapolations.


Measurement of the Reactions K- p --> Sigma+ pi- and pi- p --> p pi- Near the Backward Direction at 3.0-GeV/c and 5.1-GeV/c

Hoffman, E.W. ; Dixon, Roger L. ; Fletcher, J.M. ; et al.
Phys.Rev.Lett. 35 (1975) 138-141, 1975.
Inspire Record 2233 DOI 10.17182/hepdata.21176

We have measured differential cross sections for K−p→Σ+π− and π−p→pπ− at 3.0 and 5.1 GeV/c near the backward direction. At 3.0 GeV/c both have a dip near −u∼0.1 (GeV/c)2. At 5.1 GeV/c, dσdu for π−p→pπ− falls exponentially with slope 3.8±0.1 (GeV/c)−2 whereas dudσ for K−p→Σ+π− exhibits a decreasing slope for larger |u|. These data are discussed in terms of SU(3), and the relative importance of the helicity-flip and -non-flip amplitudes is investigated.

1 data table match query
Table 1

No description provided.