| 1. |
- Abt, I, et al.
(författare)
-
Inclusive V-0 production cross sections from 920 GeV fixed target proton-nucleus collisions
- 2003
-
Ingår i: European Physical Journal C. Particles and Fields. - : Springer Science and Business Media LLC. - 1434-6044. ; 29:2, s. 181-190
-
Tidskriftsartikel (refereegranskat)abstract
- Inclusive differential cross sections dsigma(pA)/dx(F) and dsigma(pA)/dp(t)(2) for the production of K-S(0), Lambda, and (&ULambda;) over bar particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The incident beam energy is 920 GeV, corresponding to roots = 41.6 GeV in the proton-nucleon system. The ratios of differential cross sections dsigma(pA)(K-S(0))/dsigma(pA)(Lambda) and dsigma(pA)((&ULambda;) over bar)/dsigma(pA) (Lambda) are measured to be 6.2 +/- 0.5 and 0.66 +/- 0.07, respectively, for x(F) approximate to -0.06. No significant dependence upon the target material is observed. Within errors, the slopes of the transverse momentum distributions da,Ald t also show no significant dependence upon the target material. The dependence of the extrapolated total cross sections sigma(pA) on the atomic mass A of the target material is discussed, and the deduced cross sections per nucleon sigma(pN) are compared with results obtained at other energies.
|
|
| 2. |
- Abt, I, et al.
(författare)
-
Measurement of the b(b)over-bar production cross section in 920 GeV fixed-target proton-nucleus collisions
- 2003
-
Ingår i: European Physical Journal C. Particles and Fields. - : Springer Science and Business Media LLC. - 1434-6044. ; 26:3, s. 345-355
-
Tidskriftsartikel (refereegranskat)abstract
- Using the HERA-B detector, the b (b) over bar production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The b (b) over bar production was tagged via inclusive bottom quark decays into J/psi by exploiting the longitudinal separation of J/psi --> l(+)l(-) decay vertices from the primary proton-nucleus interaction. Both e(+)e(-) and mu(+)mu(-) channels have been reconstructed and the combined analysis yields the cross section sigma(b (b) over bar) = 32(-12)(+14)(stat) (+6)(-7)(sys) nb/nucleon.
|
|
| 3. |
|
|
| 4. |
- Dangtip, S, et al.
(författare)
-
The Be-9(n,p)Li-9 reaction and the Gamow-Teller unit cross section
- 2000
-
Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 677, s. 3-24
-
Tidskriftsartikel (refereegranskat)abstract
- Double differential cross sections of the Be-9(n,p)Li-9 reaction have been measured at 96 MeV in the angular range 0 degrees-27 degrees up to about 20 MeV excitation energy. In addition, the C-12(n,p)B-12 reaction has been measured in the same angular and
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Olsson, N, et al.
(författare)
-
Uppsala neutron-proton scattering measurements and the pi NN coupling constant
- 2000
-
Ingår i: PHYSICA SCRIPTA. - : ROYAL SWEDISH ACAD SCIENCES. - 0281-1847. ; T87, s. 7-13
-
Tidskriftsartikel (refereegranskat)abstract
- The differential np scattering cross section has been measured at 96 MeV and 162 MeV at backward angles at the neutron beam facility of the The Svedberg Laboratory in Uppsala. The angular distributions have been normalized to the experimental total np cro
|
|
| 8. |
|
|
| 9. |
- Rahm, J, et al.
(författare)
-
np scattering measurements at 96 MeV - art. no. 044001
- 2001
-
Ingår i: PHYSICAL REVIEW C. - : AMERICAN PHYSICAL SOC. - 0556-2813. ; 6304:4, s. 4001-
-
Tidskriftsartikel (refereegranskat)abstract
- The differential np scattering cross section has been measured at 96 MeV in the angular range theta (c.m.) =74-180 degrees at the neutron beam facility of the The Svedberg Laboratory in Uppsala. A subset of the data, covering 116-180 degrees, has previous
|
|
| 10. |
- Ringbom, A, et al.
(författare)
-
The B-10,B-11(n, p)Be-10,Be-11 reactions at E-n=96 MeV
- 2001
-
Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 679:3-4, s. 231-250
-
Tidskriftsartikel (refereegranskat)abstract
- Double-differential cross sections of the B-10,B-11(n,p)Be-10,Be-11 reactions have been measured at 96 MeV in the angular range 0 degrees -30 degrees for excitation energies up to 35 MeV. The spectra have been decomposed into different multipolarities usi
|
|
