Date: Mon, 29 Nov 10 01:07:01 GMT Subject: nucl-ex daily 1 new + 5 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: nucl-ex@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Wed 24 Nov 10 21:00:00 GMT to Fri 26 Nov 10 21:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1011.5543 Date: Thu, 25 Nov 2010 02:56:10 GMT (1516kb) Title: Non-photonic electron-hadron correlations and non-photonic electron $v_2$ at STAR/RHIC Authors: Gang Wang (for the STAR Collaboration) Categories: nucl-ex Comments: 4 pages, 5 figures, proceedings for Hard Probe 2010 \\ Non-photonic electrons (when $p_T >$ 3 GeV/$c$) represent the directions of the parent heavy quarks, and their angular correlations with charged hadrons provide a unique tool to study the relative contributions from $D$ and $B$ meson decays in p+p collisions, as well as the flavor-dependence of the energy loss mechanism in A+A collisions. We review the disentanglement of charm and bottom contributions to non-photonic electrons in p+p collisions at $\sqrt{s} = 200$ GeV at RHIC. $B$ decay contribution is approximately $50%$ at the electron transverse momentum of $p_{T} > 5$ GeV/$c$ from STAR results. Incorporating the energy loss information of non-photonic electrons, the result indicates a $B$ meson suppression at high $p_T$ in heavy ion collisions. We also present non-photonic electron-hadron correlations in d+Au collisions as a baseline reference for the investigation of the heavy quark energy loss in A+A collisions. Heavy quark energy loss and heavy quark evolution in the QCD medium can lead to a finite ``elliptic flow" parameter ($v_2$) of $D$ and $B$ mesons which can be studied through $v_2$ of non-photonic electrons. Preliminary $v_2$ measurements for non-photonic electrons are shown to be lower than $v_2$ of charged hadrons (or $K_S^0$, $\Lambda$) for 200 GeV Au+Au collisions. \\ ( http://arxiv.org/abs/1011.5543 , 1516kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1007.5343 (*cross-listing*) Date: Thu, 29 Jul 2010 22:07:33 GMT (144kb) Date (revised v2): Thu, 25 Nov 2010 00:02:06 GMT (144kb) Title: Comparative tests of isospin-symmetry-breaking corrections to superallowed 0+-to-0+ nuclear beta decay Authors: I.S. Towner and J.C. Hardy Categories: nucl-th nucl-ex \\ We present a test with which to evaluate the calculated isospin-symmetry-breaking corrections to superallowed 0+-to-0+ nuclear beta decay. The test is based on the corrected experimental Ft values being required to satisfy conservation of the vector current (CVC). When applied to six sets of published calculations, the test demonstrates quantitatively that only one set -- the one based on the shell model with Saxon-Woods radial wave functions -- provides satisfactory agreement with CVC. This test can easily be applied to any sets of calculated correction terms that are produced in future. \\ ( http://arxiv.org/abs/1007.5343 , 144kb) ------------------------------------------------------------------------------ \\ arXiv:1011.5588 (*cross-listing*) Date: Thu, 25 Nov 2010 10:47:14 GMT (238kb) Title: Heavy mesons in dense matter Authors: Laura Tolos, Daniel Gamermann, Carmen Garcia-Recio, Raquel Molina, Juan Nieves, Eulogio Oset, Angels Ramos Categories: nucl-th hep-ex hep-ph nucl-ex Comments: 3 pages, 2 figures, invited parallel talk in "Quark Confinement and the Hadron Spectrum IX" Conference, Madrid, Spain, August 30- September 3, 2010 \\ Charmed mesons in dense matter are studied within a unitary coupled-channel approach which takes into account Pauli-blocking effects and meson self-energies in a self-consistent manner. We obtain the open-charm meson spectral functions in this dense medium, and discuss their implications on hidden charm and charm scalar resonances and on the formation of D-mesic nuclei. \\ ( http://arxiv.org/abs/1011.5588 , 238kb) ------------------------------------------------------------------------------ \\ arXiv:1011.5589 (*cross-listing*) Date: Thu, 25 Nov 2010 10:48:42 GMT (351kb) Title: Energy and system-size dependence of the Chiral Magnetic Effect Authors: V.Toneev and V.Voronyuk Categories: nucl-th hep-ph nucl-ex Comments: 8 pages, 8 figures; Talk given at the workshop "Hot and Cold Baryonic Matter", Budapest, August 15-19, 2010 \\ The energy dependence of the local ${\cal P}$ and ${\cal CP}$ violation in Au+Au and Cu+Cu collisions in a large energy range is estimated within a simple phenomenological model. It is expected that at LHC the chiral magnetic effect will be about 20 times weaker than at RHIC. At lower energy range, covered by the low-energy scan at RHIC and future NICA/FAIR facilities, the created magnetic field strength and energy density of deconfined matter are rather high providing necessary conditions for the chiral magnetic effect. However, the particular model for the chiral magnetic effect predicts that this effect should vanish sharply at energy somewhere above the top SPS one. To elucidate CME background effects the Hadron-String-Dynamics (HSD) transport model including electromagnetic fields is put forward. Importance of new planning experiments at LHC and for the low-energy RHIC scan program is emphasized. \\ ( http://arxiv.org/abs/1011.5589 , 351kb) ------------------------------------------------------------------------------ \\ arXiv:1011.5773 (*cross-listing*) Date: Fri, 26 Nov 2010 12:40:22 GMT (26kb) Title: Collective flow and long-range correlations in relativistic heavy ion collisions Authors: Matthew Luzum Categories: nucl-th hep-ph nucl-ex Comments: 6 pages, 2 figures \\ Making use of recently released data on dihadron correlations by the STAR collaboration, I analyze the long-range ("ridge-like") part of these data and show that the dependence on both transverse momentum as well as orientation with respect to the event plane are consistent with correlations expected from only collective flow. In combination with previously analyzed centrality-dependent data, they provide strong evidence that only collective flow effects are present at large relative pseudorapidy. In contrast, by analyzing a "background subtracted" signal, the authors presenting the new data concluded that the ridge-like part of the measured correlation could not in fact be entirely generated from collective flow of the medium. I explain the discrepancy and illustrate some pitfalls of using the ZYAM prescription to remove flow background. \\ ( http://arxiv.org/abs/1011.5773 , 26kb) ------------------------------------------------------------------------------ \\ arXiv:1011.5821 (*cross-listing*) Date: Fri, 26 Nov 2010 15:26:52 GMT (134kb,D) Title: Jet quenching measurements with ATLAS at LHC Authors: W. K. Brooks Categories: hep-ex nucl-ex Comments: 5 pages, 3 figures Report-no: ATL-PHYS-PROC-2010-021 Journal-ref: AIP Conf. Proc. 1265, 276 (2010) DOI: 10.1063/1.3480184 \\ A broad program of measurements is planned for heavy ion collisions in ATLAS. With up to a factor of 30 increase in collision energy compared to existing data, significant new insights are anticipated to be obtained with the first data measured. Global features of the LHC collisions will be accessible with the early data and will set the stage for the precision measurements to follow. ATLAS is particularly well suited for exploration of "jet quenching," the extinction of energetic jets in the hot dense medium. Observations of heavy quark jet suppression will be possible with unprecedented energy reach and statistical precision, potentially yielding new insights into the basic mechanisms involved. \\ ( http://arxiv.org/abs/1011.5821 , 134kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1003.4726 replaced with revised version Wed, 24 Nov 2010 22:17:25 GMT (33kb,D) Title: Measuring (n,f) cross-sections of short-lived states Authors: J. I. Katz Categories: nucl-ex Comments: 28 pp., 4 figs, revised in response to referees' comments, additional details re sources and volatile Am organometallic compounds \\ ( http://arxiv.org/abs/1003.4726 , 33kb) ------------------------------------------------------------------------------ \\ arXiv:1007.1200 replaced with revised version Thu, 25 Nov 2010 11:32:37 GMT (46kb) Title: Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV Authors: STAR Collaboration, M. M. Aggarwal, et al. Categories: nucl-ex Comments: 6 pages, 4 figures, accepted by PRL Journal-ref: Phys. Rev. Lett. 105, 202301 (2010) DOI: 10.1103/PhysRevLett.105.202301 \\ ( http://arxiv.org/abs/1007.1200 , 46kb) ------------------------------------------------------------------------------ \\ arXiv:1008.4875 replaced with revised version Wed, 24 Nov 2010 22:23:44 GMT (30kb) Title: Jets in 200 GeV p+p and d+Au collisions from the STAR experiment at RHIC Authors: Jan Kapitan, for the STAR Collaboration Categories: nucl-ex Comments: 4 pages, 5 figures. To appear in Hot Quarks 2010 conference proceedings \\ ( http://arxiv.org/abs/1008.4875 , 30kb) ------------------------------------------------------------------------------ \\ arXiv:1010.2613 replaced with revised version Thu, 25 Nov 2010 09:49:13 GMT (226kb,D) Title: Coulomb excitation of 73Ga Authors: J. Diriken, I. Stefanescu, D. Balabanski, N. Blasi, A. Blazhev, N. Bree, J. Cederk\"all, T.E. Cocolios, T. Davinson, J. Eberth, A. Ekstr\"om, D.V. Fedorov, V.N. Fedosseev, L.M. Fraile, S. Franchoo, G. Georgiev, K. Gladnishki, M. Huyse, O.V. Ivanov, V.S. Ivanov, J. Iwanicki, J. Jolie, T. Konstantinopoulos, Th. Kr\"oll, R. Kr\"ucken, U. K\"oster, A. Lagoyannis, G. Lo Bianco, P. Maierbeck, B.A. Marsh, P. Napiorkowski, N. Patronis, D. Pauwels, P. Reiter, M. Seliverstov, G. Sletten, J. Van de Walle, P. Van Duppen, D. Voulot, W.B. Walters, N. Warr, F. Wenander, and K. Wrzosek Categories: nucl-ex \\ ( http://arxiv.org/abs/1010.2613 , 226kb) ------------------------------------------------------------------------------ \\ arXiv:1011.5424 replaced with revised version Fri, 26 Nov 2010 10:52:26 GMT (112kb,D) Title: Probing resonance matter with virtual photons Authors: Tetyana Galatyuk, for the HADES collaboration Categories: nucl-ex Comments: 10 pages, 3 figures, proceedings of the International Nuclear Physics Conference - INPC 2010, Vancouver, Canada, July 4 - 9 2010 \\ ( http://arxiv.org/abs/1011.5424 , 112kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. 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