[Brahms-l] Fwd: New PHENIX paper on electron-hadron correlations

FYI



Begin forwarded message:

> From: Barbara Jacak <jacak_at_skipper.physics.sunysb.edu>
> Date: October 29, 2010 2:16:34 PM EDT
> To: Nu Xu <NXu_at_lbl.gov>, Wit Busza <busza_at_mit.edu>, "Videbaek,  
> Flemming" <videbaek_at_bnl.gov>, "Vigdor, Steven" <vigdor_at_bnl.gov>
> Subject: New PHENIX paper on electron-hadron correlations
>
> Dear Nu, Wit, Flemming and Steve,
>
> I am happy to announce that in one week's time, the
> PHENIX Collaboration will submit a paper to Phys.Rev.
> C. on the topic indicated in the subject line. Please
> find the title and abstract below.
>
> best regards,
> Barbara
>
> -----------------------------------------------------
> Title:
> Azimuthal Correlations of Electrons from Heavy Flavor Decay with
> Hadrons in $p$+$p$ and Au+Au Collisions at $\sqrt{s_{NN}}=$200 GeV
>
> Abstract:
> Measurements of electrons from the decay of open heavy flavor mesons
> have shown that the yields are suppressed in Au+Au collisions compared
> to expectations from binary scaled $p$+$p$ collisions. These
> measurements indicate that charm and bottom quarks interact with the
> hot dense matter produced in heavy ion collisions much more than
> expected. Here we extend these studies to two particle correlations
> where one particle is an electron from the decay of a heavy flavor
> meson and the other is a charged hadron from either the decay of the
> heavy meson or from jet fragmentation. These measurements provide more
> detailed information about the interactions between heavy quarks and
> the matter, such as whether the modification of the away side jet
> shape seen in hadron-hadron correlations is present when the trigger
> particle is from heavy meson decay and whether the overall level of
> away side jet suppression is consistent. We statistically subtract
> correlations of electrons arising from background sources from the
> inclusive electron-hadron correlations and obtain two-particle
> azimuthal correlations at $\sqrt{s_{NN}}=$200~GeV between  electrons
> from heavy flavor decay with charged hadrons in $p$+$p$ and also first
> results in Au+Au collisions. We find the away side jet shape and yield
> to be modified in Au+Au collisions compared to $p$+$p$ collisions.



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