[Brahms-l] Fwd: STAR new paper on three-particle correlations

Flemming Videbaek
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell     :  631-681-1596





Begin forwarded message:

> From: Nu Xu <NXu_at_lbl.gov>
> Date: December 15, 2009 2:29:24 AM EST
> To: Barbara Jacak <jacak_at_skipper.physics.sunysb.edu>, Wit Busza <busza_at_MIT.EDU 
> >, Steven Vigdor <vigdor_at_bnl.gov>, Flemming Videbaek  
> <videbaek_at_bnl.gov>
> Cc: Nu Xu <NXu_at_lbl.gov>
> Subject: STAR new paper on three-particle correlations
>
> Dear Barbara, Wit, Flemming and Steve,
>
> I am pleased to announce that the STAR collaboration will submit to  
> Physical Review Letters,  in one week's time,  a new paper on three- 
> particle eta correlations in d+Au and Au+Au collisions at RHIC. The  
> title and abstract are included below.
>
> Best regards,
>
> Nu Xu
>
> -----------------------------------------------------------------------
> Nu Xu
>
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> -----------------------------------------------------------------------
>
> Title: "Identifying the physics of the ridge via three-particle $ 
> \Delta\eta$-$\Delta\eta$ correlations in high energy nucleus-nucleus  
> collisions"
>
> Abstract: "We report the first three-particle correlation results in  
> pseudorapidity ($\Delta\eta$) between a high transverse momentum ($ 
> \p_\perp$) trigger particle and two lower $\p_\perp$ associated  
> particles within azimuth $|\Delta\phi|<0.7$ in $ 
> \sqrt{s_{_{NN}}}=200$~GeV d+Au and Au+Au collisions. Charge ordering  
> properties are exploited to separate the jet-like component and the  
> ridge (long-range $\Delta\eta$ correlation). The results indicate  
> that particles from the ridge are uncorrelated in $\Delta\eta$ not  
> only with the trigger particle but also among themselves event-by- 
> event. In addition, the ridge appears to be unrelated to the  
> presence of the narrow jet-like component."



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