scholarly journals Effects of in-medium vector meson masses on low-mass dileptons from SPS heavy-ion collisions

1996 ◽  
Vol 606 (3-4) ◽  
pp. 568-606 ◽  
Author(s):  
G.Q. Li ◽  
C.M. Ko ◽  
G.E. Brown
Keyword(s):  
Vector Meson ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Low Mass

Bremsstrahlung production of low mass dielectrons in relativistic heavy ion collisions

1996 ◽  
Vol 54 (3) ◽  
pp. 1366-1374 ◽  
Author(s):  
Dipali Pal ◽  
Kevin Haglin ◽  
Dinesh Kumar Srivastava
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Low Mass

SEARCH FOR NEUTRAL BOSONS IN RELATIVISTIC HEAVY-ION COLLISIONS

2008 ◽  
Vol 17 (05) ◽  
pp. 759-770 ◽  
Author(s):  
P. L. JAIN
Keyword(s):  
Invariant Mass ◽  
Heavy Ion Collisions ◽  
Life Time ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Electron Pairs ◽  
Ion Collisions ◽  
Low Mass

In this talk, I will describe results on 1,220 electron pairs produced from a 207 Pb beam at 160A GeV in a nuclear experiment EMU 11 conducted at the CERN SPS. These electron pairs were produced at a distance of more than 50 μm from the primary interactions, which eliminates contamination due to Dalitz pairs. Results on electron pairs with invariant mass Q ranging between 1 and 100 MeV and life-time τ between 10−15 s and 10−12 s were analyzed. After subtracting background pairs from the materialization of photons and from the decays of π0 to photons from the data, they exhibit an enhancement at low mass Q = 6 – 20 MeV with narrow peaks at 7 ± 1 MeV , 19 ± 1 MeV and τ ≤ 10−13 s .

scholarly journals Rescattering of vector meson daughters in high energy heavy ion collisions

2001 ◽  
Vol 18 (4) ◽  
pp. 645-649 ◽  
Author(s):  
S.C. Johnson ◽  
B.V. Jacak ◽  
A. Drees
Keyword(s):  
Vector Meson ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Ion Collisions
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