Beyond Standard Model Higgs

Recent LHC highlights of searches for Higgs bosons beyond the Standard Model are presented. The results by the ATLAS and CMS collaborations are based on 2011 and 2012 proton-proton collision data at centre-of-mass energies of 7 and 8 TeV, respectively. They test a wide range of theoretical models.Comment: Presented at the XXXIV Physics in Collision Symposium, Bloomington, Indiana, September 16-20, 2014. 9 pages, 9 figure

High-pTp_T multi-jet final states at ATLAS and CMS

The increase of the centre-of-mass energy of the Large Hadron Collider (LHC) to 13 TeV has opened up a new energy regime. Final states including high-momentum multi-jet signatures often dominate beyond standard model phenomena, in particular decay products of new heavy particles. While the potential di-photon resonance currently receives a lot of attention, multi-jet final states pose strong constraints on what physics model an observation could actually be described with. In this presentation, the latest results of the ATLAS and CMS collaborations in high transverse momentum multi-jet final states are summarised. This includes searches for heavy resonances and new phenomena in the di-jet mass spectrum, di-jet angular distributions, and the sum of transverse momenta in different event topologies. Furthermore, results on leptoquark pair production will be shown. A particular focus is laid on the different background estimation methods.Comment: 8 pages, Presented at Moriond/EW2016 51st Rencontres de Moriond on Electroweak Interactions and Unified Theorie

Active suspension design for a Large Space Structure ground test facility

The expected future high performance requirements for Large Space Structures (LSS) enforce technology innovations such as active vibration damping techniques e.g., by means of structure sensors and actuators. The implementation of new technologies like that requires an interactive and integrated structural and control design with an increased effort in hardware validation by ground testing. During the technology development phase generic system tests will be most important covering verification and validation aspects up to the preparation and definition of relevant space experiments. For many applications using advanced designs it is deemed necessary to improve existing testing technology by further reducing disturbances and gravity coupling effects while maintaining high performance reliability. A key issue in this context is the improvement of suspension techniques. The ideal ground test facility satisfying these requirements completely will never be found. The highest degree of reliability will always be obtained by passive suspension methods taking into account severe performance limitations such as non-zero rigid body modes, restriction of degrees of freedom of motion and frequency response limitations. Passive compensation mechanisms, e.g., zero-spring-rate mechanisms, either require large moving masses or they are limited with respect to low-frequency performance by friction, stiction or other non-linear effects. With active suspensions these limitations can be removed to a large extent thereby increasing the range of applications. Despite an additional complexity which is associated with a potential risk in reliability their development is considered promising due to the amazing improvement of real-time control technology which is still continuing

Lorentz meets Lipschitz

We show that maximal causal curves for a Lipschitz continuous Lorentzian metric admit a $\mathcal{C}^{1,1}$-parametrization and that they solve the geodesic equation in the sense of Filippov in this parametrization. Our proof shows that maximal causal curves are either everywhere lightlike or everywhere timelike. Furthermore, the proof demonstrates that maximal causal curves for an $\alpha$-H\"older continuous Lorentzian metric admit a $\mathcal{C}^{1,\frac{\alpha}{4}}$-parametrization.Comment: 25 pages; v2: minor improvements of the presentatio

Midrapidity phi production in Au+Au collisions at sqrt[sNN]=130 GeV

We present the first measurement of midrapidity vector meson phi production in Au+Au collisions at RHIC (sqrt[sNN]=130 GeV) from the STAR detector. For the 11% highest multiplicity collisions, the slope parameter from an exponential fit to the transverse mass distribution is T=379±50(stat)±45(syst) MeV, the yield dN/dy=5.73±0.37(stat)±0.69(syst) per event, and the ratio N phi /Nh- is found to be 0.021±0.001(stat)±0.004(syst). The measured ratio N phi /Nh- and T for the phi meson at midrapidity do not change for the selected multiplicity bins.alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwied30, J. Berger11, H. Bichsel29, L. C. Bland12, C. O. Blyth3, B. E. Bonner24, A. Boucham26, A. Brandin18, R. V. Cadman1, H. Caines20, M. Calderón de la Barca Sánchez31, A. Cardenas23, J. Carroll15, J. Castillo26, M. Castro30, D. Cebra5, S. Chattopadhyay30, M. L. Chen2, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian31, B. Choi27, W. Christie2, J. P. Coffin13, T. M. Cormier30, J. G. Cramer29, H. J. Crawford4, M. DeMello24, W. S. Deng14, A. A. Derevschikov22, L. Didenko2, J. E. Draper5, V. B. Dunin9, J. C. Dunlop31, V. Eckardt16, L. G. Efimov9, V. Emelianov18, J. Engelage4, G. Eppley24, B. Erazmus26, P. Fachini25, V. Faine2, E. Finch31, Y. Fisyak2, D. Flierl11, K. J. Foley2, J. Fu15, N. Gagunashvili9, J. Gans31, L. Gaudichet26, M. Germain13, F. Geurts24, V. Ghazikhanian6, J. Grabski28, O. Grachov30, D. Greiner15, V. Grigoriev18, M. Guedon13, E. Gushin18, T. J. Hallman2, D. Hardtke15, J. W. Harris31, M. Heffner5, S. Heppelmann21, T. Herston23, B. Hippolyte13, A. Hirsch23, E. Hjort15, G. W. Hoffmann27, M. Horsley31, H. Z. Huang6, T. J. Humanic20, H. Hümmler16, G. Igo6, A. Ishihara27, Yu. I. Ivanshin10, P. Jacobs15, W. W. Jacobs12, M. Janik28, I. Johnson15, P. G. Jones3, E. Judd4, M. Kaneta15, M. Kaplan7, D. Keane14, A. Kisiel28, J. Klay5, S. R. Klein15, A. Klyachko12, A. S. Konstantinov22, L. Kotchenda18, A. D. Kovalenko9, M. Kramer19, P. Kravtsov18, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde31, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, L. Lakehal-Ayat26, J. Lamas-Valverde24, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell27, B. Lasiuk31, F. Laue2, A. Lebedev2, T. LeCompte1, R. Lednický9, V. M. Leontiev22, M. J. LeVine2, Q. Li30, Q. Li15, S. J. Lindenbaum19, M. A. Lisa20, T. Ljubicic2, W. J. Llope24, G. LoCurto16, H. Long6, R. S. Longacre2, M. Lopez-Noriega20, W. A. Love2, D. Lynn2, R. Majka31, S. Margetis14, L. Martin26, J. Marx15, H. S. Matis15, Yu. A. Matulenko22, T. S. McShane8, F. Meissner15, Yu. Melnick22, A. Meschanin22, M. Messer2, M. L. Miller31, Z. Milosevich7, N. G. Minaev22, J. Mitchell24, V. A. Moiseenko10, D. Moltz15, C. F. Moore27, V. Morozov15, M. M. de Moura30, M. G. Munhoz25, G. S. Mutchler24, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach22, B. Norman14, S. B. Nurushev22, G. Odyniec15, A. Ogawa21, V. Okorokov18, M. Oldenburg16, D. Olson15, G. Paic20, S. U. Pandey30, Y. Panebratsev9, S. Y. Panitkin2, A. I. Pavlinov30, T. Pawlak28, V. Perevoztchikov2, W. Peryt28, V. A. Petrov10, E. Platner24, J. Pluta28, N. Porile23, J. Porter2, A. M. Poskanzer15, E. Potrebenikova9, D. Prindle29, C. Pruneau30, S. Radomski28, G. Rai15, O. Ravel26, R. L. Ray27, S. V. Razin9,12, D. Reichhold8, J. G. Reid29, F. Retiere15, A. Ridiger18, H. G. Ritter15, J. B. Roberts24, O. V. Rogachevski9, J. L. Romero5, C. Roy26, D. Russ7, V. Rykov30, I. Sakrejda15, J. Sandweiss31, A. C. Saulys2, I. Savin10, J. Schambach27, R. P. Scharenberg23, N. Schmitz16, L. S. Schroeder15, A. Schüttauf16, K. Schweda15, J. Seger8, D. Seliverstov18, P. Seyboth16, E. Shahaliev9, K. E. Shestermanov22, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov31, R. Snellings15, J. Sowinski12, H. M. Spinka1, B. Srivastava23, E. J. Stephenson12, R. Stock11, A. Stolpovsky30, M. Strikhanov18, B. Stringfellow23, C. Struck11, A. A. P. Suaide30, E. Sugarbaker20, C. Suire13, M. Sumbera9, T. J. M. Symons15, A. Szanto de Toledo25, P. Szarwas28, J. Takahashi25, A. H. Tang14, J. H. Thomas15, V. Tikhomirov18, T. A. Trainor29, S. Trentalange6, M. Tokarev9, M. B. Tonjes17, V. Trofimov18, O. Tsai6, K. Turner2, T. Ullrich2, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen17, A. Vanyashin15, I. M. Vasilevski10, A. N. Vasiliev22, S. E. Vigdor12, S. A. Voloshin30, F. Wang23, H. Ward27, J. W. Watson14, R. Wells20, T. Wenaus2, G. D. Westfall17, C. Whitten, Jr.6, H. Wieman15, R. Willson20, S. W. Wissink12, R. Witt14, N. Xu15, Z. Xu31, A. E. Yakutin22, E. Yamamoto6, J. Yang6, P. Yepes24, A. Yokosawa1, V. I. Yurevich9, Y. V. Zanevski9, I. Zborovský9, H. Zhang31, W. M. Zhang14, R. Zoulkarneev10, and A. N. Zubarev

Measurement of inclusive antiprotons from Au+Au collisions at sqrt[sNN] = 130 GeVd-bar and 3He-bar production in sqrt[sNN] = 130 GeV Au+Au collisions

We report the first measurement of inclusive antiproton production at midrapidity in Au+Au collisions at sqrt[sNN] = 130 GeV by the STAR experiment at RHIC. The antiproton transverse mass distributions in the measured transverse momentum range of 0.25<pperp<0.95 GeV/c are found to fall less steeply for more central collisions. The extrapolated antiproton rapidity density is found to scale approximately with the negative hadron multiplicity density.alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwied31, J. Berger11, H. Bichsel30, L. C. Bland12, C. O. Blyth3, B. E. Bonner24, A. Boucham26, A. Brandin18, R. V. Cadman1, H. Caines20, M. Calderón de la Barca Sánchez33, A. Cardenas23, J. Carroll15, J. Castillo26, M. Castro31, D. Cebra5, S. Chattopadhyay31, M. L. Chen2, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian33, B. Choi28, W. Christie2, J. P. Coffin13, T. M. Cormier31, J. G. Cramer30, H. J. Crawford4, M. DeMello24, W. S. Deng14, A. A. Derevschikov22, L. Didenko2, J. E. Draper5, V. B. Dunin9, J. C. Dunlop33, V. Eckardt16, L. G. Efimov9, V. Emelianov18, J. Engelage4, G. Eppley24, B. Erazmus26, P. Fachini25, V. Faine2, K. Filimonov15, E. Finch33, Y. Fisyak2, D. Flierl11, K. J. Foley2, J. Fu15, C. A. Gagliardi27, N. Gagunashvili9, J. Gans33, L. Gaudichet26, M. Germain13, F. Geurts24, V. Ghazikhanian6, J. Grabski29, O. Grachov31, V. Grigoriev18, M. Guedon13, E. Gushin18, T. J. Hallman2, D. Hardtke15, J. W. Harris33, M. Heffner5, S. Heppelmann21, T. Herston23, B. Hippolyte13, A. Hirsch23, E. Hjort15, G. W. Hoffmann28, M. Horsley33, H. Z. Huang6, T. J. Humanic20, H. Hümmler16, G. Igo6, A. Ishihara28, Yu. I. Ivanshin10, P. Jacobs15, W. W. Jacobs12, M. Janik29, I. Johnson15, P. G. Jones3, E. Judd4, M. Kaneta15, M. Kaplan7, D. Keane14, A. Kisiel29, J. Klay15, S. R. Klein15, A. Klyachko12, A. S. Konstantinov22, L. Kotchenda18, A. D. Kovalenko9, M. Kramer19, P. Kravtsov18, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde33, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, L. Lakehal-Ayat26, J. Lamas-Valverde24, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell28, B. Lasiuk33, F. Laue2, A. Lebedev2, R. Lednický9, V. M. Leontiev22, M. J. LeVine2, Q. Li31, S. J. Lindenbaum19, M. A. Lisa20, F. Liu32, L. Liu32, Z. Liu32, Q. J. Liu30, T. Ljubicic2, W. J. Llope24, G. LoCurto16, H. Long6, R. S. Longacre2, M. Lopez-Noriega20, W. A. Love2, D. Lynn2, R. Majka33, S. Margetis14, L. Martin26, J. Marx15, H. S. Matis15, Yu. A. Matulenko22, T. S. McShane8, F. Meissner15, Yu. Melnick22, A. Meschanin22, M. Messer2, M. L. Miller33, Z. Milosevich7, N. G. Minaev22, J. Mitchell24, V. A. Moiseenko10, C. F. Moore28, V. Morozov15, M. M. de Moura31, M. G. Munhoz25, G. S. Mutchler24, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach22, B. Norman14, S. B. Nurushev22, G. Odyniec15, A. Ogawa21, V. Okorokov18, M. Oldenburg16, D. Olson15, G. Paic20, S. U. Pandey31, Y. Panebratsev9, S. Y. Panitkin2, A. I. Pavlinov31, T. Pawlak29, V. Perevoztchikov2, W. Peryt29, V. A. Petrov10, E. Platner24, J. Pluta29, N. Porile23, J. Porter2, A. M. Poskanzer15, E. Potrebenikova9, D. Prindle30, C. Pruneau31, S. Radomski29, G. Rai15, O. Ravel26, R. L. Ray28, S. V. Razin9,12, D. Reichhold8, J. G. Reid30, F. Retiere15, A. Ridiger18, H. G. Ritter15, J. B. Roberts24, O. V. Rogachevski9, J. L. Romero5, C. Roy26, V. Rykov31, I. Sakrejda15, J. Sandweiss33, A. C. Saulys2, I. Savin10, J. Schambach28, R. P. Scharenberg23, N. Schmitz16, L. S. Schroeder15, A. Schüttauf16, K. Schweda15, J. Seger8, D. Seliverstov18, P. Seyboth16, E. Shahaliev9, K. E. Shestermanov22, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov33, R. Snellings15, J. Sowinski12, H. M. Spinka1, B. Srivastava23, E. J. Stephenson12, R. Stock11, A. Stolpovsky31, M. Strikhanov18, B. Stringfellow23, C. Struck11, A. A. P. Suaide31, E. Sugarbaker20, C. Suire13, M. Sumbera9, T. J. M. Symons15, A. Szanto de Toledo25, P. Szarwas29, J. Takahashi25, A. H. Tang14, J. H. Thomas15, M. Thompson3, V. Tikhomirov18, T. A. Trainor30, S. Trentalange6, R. E. Tribble27, M. Tokarev9, M. B. Tonjes17, V. Trofimov18, O. Tsai6, K. Turner2, T. Ullrich2, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen17, A. Vanyashin15, I. M. Vasilevski10, A. N. Vasiliev22, S. E. Vigdor12, S. A. Voloshin31, F. Wang23, H. Ward28, J. W. Watson14, R. Wells20, T. Wenaus2, G. D. Westfall17, C. Whitten, Jr.6, H. Wieman15, R. Willson20, S. W. Wissink12, R. Witt14, N. Xu15, Z. Xu2, A. E. Yakutin22, E. Yamamoto15, J. Yang6, P. Yepes24, V. I. Yurevich9, Y. V. Zanevski9, I. Zborovský9, H. Zhang33, W. M. Zhang14, R. Zoulkarneev10, and A. N. Zubarev

Pion interferometry of sqrt[sNN] = 130 GeV Au+Au collisions at RHIC

Two-pion correlation functions in Au+Au collisions at sqrt[sNN] = 130 GeV have been measured by the STAR (solenoidal tracker at RHIC) detector. The source size extracted by fitting the correlations grows with event multiplicity and decreases with transverse momentum. Anomalously large sizes or emission durations, which have been suggested as signals of quark-gluon plasma formation and rehadronization, are not observed. The Hanbury Brown-Twiss parameters display a weak energy dependence over a broad range in sqrt[sNN].alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwied30, J. Berger11, H. Bichsel29, L. C. Bland12, C. O. Blyth3, B. E. Bonner24, R. Bossingham15, A. Boucham26, A. Brandin18, R. V. Cadman1, H. Caines20, M. Calderón de la Barca Sánchez31, A. Cardenas23, J. Carroll15, J. Castillo26, M. Castro30, D. Cebra5, S. Chattopadhyay30, M. L. Chen2, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian31, B. Choi27, W. Christie2, J. P. Coffin13, L. Conin26, T. M. Cormier30, J. G. Cramer29, H. J. Crawford4, M. DeMello24, W. S. Deng14, A. A. Derevschikov22, L. Didenko2, J. E. Draper5, V. B. Dunin9, J. C. Dunlop31, V. Eckardt16, L. G. Efimov9, V. Emelianov18, J. Engelage4, G. Eppley24, B. Erazmus26, P. Fachini25, V. Faine2, E. Finch31, Y. Fisyak2, D. Flierl11, K. J. Foley2, J. Fu15, N. Gagunashvili9, J. Gans31, L. Gaudichet26, M. Germain13, F. Geurts24, V. Ghazikhanian6, J. Grabski28, O. Grachov30, D. Greiner15, V. Grigoriev18, M. Guedon13, E. Gushin18, T. J. Hallman2, D. Hardtke15, J. W. Harris31, M. Heffner5, S. Heppelmann21, T. Herston23, B. Hippolyte13, A. Hirsch23, E. Hjort15, G. W. Hoffmann27, M. Horsley31, H. Z. Huang6, T. J. Humanic20, H. Hümmler16, G. Igo6, A. Ishihara27, Yu. I. Ivanshin10, P. Jacobs15, W. W. Jacobs12, M. Janik28, I. Johnson15, P. G. Jones3, E. Judd4, M. Kaneta15, M. Kaplan7, D. Keane14, A. Kisiel28, J. Klay5, S. R. Klein15, A. Klyachko12, A. S. Konstantinov22, L. Kotchenda18, A. D. Kovalenko9, M. Kramer19, P. Kravtsov18, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde31, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, L. Lakehal-Ayat26, J. Lamas-Valverde24, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell27, B. Lasiuk31, F. Laue2, A. Lebedev2, T. LeCompte1, R. Lednický9, V. M. Leontiev22, M. J. LeVine2, Q. Li30, Q. Li15, S. J. Lindenbaum19, M. A. Lisa20, T. Ljubicic2, W. J. Llope24, G. LoCurto16, H. Long6, R. S. Longacre2, M. Lopez-Noriega20, W. A. Love2, D. Lynn2, R. Majka31, S. Margetis14, L. Martin26, J. Marx15, H. S. Matis15, Yu. A. Matulenko22, T. S. McShane8, F. Meissner15, Yu. Melnick22, A. Meschanin22, M. Messer2, M. L. Miller31, Z. Milosevich7, N. G. Minaev22, J. Mitchell24, V. A. Moiseenko10, D. Moltz15, C. F. Moore27, V. Morozov15, M. M. de Moura30, M. G. Munhoz25, G. S. Mutchler24, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach22, B. Norman14, S. B. Nurushev22, G. Odyniec15, A. Ogawa21, V. Okorokov18, M. Oldenburg16, D. Olson15, G. Paic20, S. U. Pandey30, Y. Panebratsev9, S. Y. Panitkin2, A. I. Pavlinov30, T. Pawlak28, V. Perevoztchikov2, W. Peryt28, V. A. Petrov10, W. Pinganaud26, E. Platner24, J. Pluta28, N. Porile23, J. Porter2, A. M. Poskanzer15, E. Potrebenikova9, D. Prindle29, C. Pruneau30, S. Radomski28, G. Rai15, O. Ravel26, R. L. Ray27, S. V. Razin9,12, D. Reichhold8, J. G. Reid29, F. Retiere15, A. Ridiger18, H. G. Ritter15, J. B. Roberts24, O. V. Rogachevski9, J. L. Romero5, C. Roy26, D. Russ7, V. Rykov30, I. Sakrejda15, J. Sandweiss31, A. C. Saulys2, I. Savin10, J. Schambach27, R. P. Scharenberg23, K. Schweda15, N. Schmitz16, L. S. Schroeder15, A. Schüttauf16, J. Seger8, D. Seliverstov18, P. Seyboth16, E. Shahaliev9, K. E. Shestermanov22, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov31, R. Snellings15, J. Sowinski12, H. M. Spinka1, B. Srivastava23, E. J. Stephenson12, R. Stock11, A. Stolpovsky30, M. Strikhanov18, B. Stringfellow23, H. Stroebele11, C. Struck11, A. A. P. Suaide30, E. Sugarbaker20, C. Suire13, M. Sumbera9, T. J. M. Symons15, A. Szanto de Toledo25, P. Szarwas28, J. Takahashi25, A. H. Tang14, J. H. Thomas15, V. Tikhomirov18, T. A. Trainor29, S. Trentalange6, M. Tokarev9, M. B. Tonjes17, V. Trofimov18, O. Tsai6, K. Turner2, T. Ullrich2, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen17, A. Vanyashin15, I. M. Vasilevski10, A. N. Vasiliev22, S. E. Vigdor12, S. A. Voloshin30, F. Wang23, H. Ward27, J. W. Watson14, R. Wells20, T. Wenaus2, G. D. Westfall17, C. Whitten, Jr.6, H. Wieman15, R. Willson20, S. W. Wissink12, R. Witt14, N. Xu15, Z. Xu31, A. E. Yakutin22, E. Yamamoto6, J. Yang6, P. Yepes24, A. Yokosawa1, V. I. Yurevich9, Y. V. Zanevski9, I. Zborovský9, W. M. Zhang14, R. Zoulkarneev10, and A. N. Zubarev

Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions at sqrt[sNN] = 130 GeV

The minimum-bias multiplicity distribution and the transverse momentum and pseudorapidity distributions for central collisions have been measured for negative hadrons ( h-) in Au+Au interactions at sqrt[sNN] = 130 GeV. The multiplicity density at midrapidity for the 5% most central interactions is dNh-/d eta | eta = 0 = 280±1(stat)±20(syst), an increase per participant of 38% relative to pp-bar collisions at the same energy. The mean transverse momentum is 0.508±0.012 GeV/c and is larger than in central Pb+Pb collisions at lower energies. The scaling of the h- yield per participant is a strong function of pperp. The pseudorapidity distribution is almost constant within | eta |<1.alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwied30, J. Berger11, H. Bichsel29, L. C. Bland12, C. O. Blyth3, B. E. Bonner24, R. Bossingham15, A. Boucham26, A. Brandin18, H. Caines20, M. Calderón de la Barca Sánchez31, A. Cardenas23, J. Carroll15, J. Castillo26, M. Castro30, D. Cebra5, S. Chattopadhyay30, M. L. Chen2, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian31, B. Choi27, W. Christie2, J. P. Coffin13, L. Conin26, T. M. Cormier30, J. G. Cramer29, H. J. Crawford4, M. DeMello24, W. S. Deng14, A. A. Derevschikov22, L. Didenko2, J. E. Draper5, V. B. Dunin9, J. C. Dunlop31, V. Eckardt16, L. G. Efimov9, V. Emelianov18, J. Engelage4, G. Eppley24, B. Erazmus26, P. Fachini25, E. Finch31, Y. Fisyak2, D. Flierl11, K. J. Foley2, J. Fu15, N. Gagunashvili9, J. Gans31, L. Gaudichet26, M. Germain13, F. Geurts24, V. Ghazikhanian6, J. Grabski28, O. Grachov30, D. Greiner15, V. Grigoriev18, M. Guedon13, E. Gushin18, T. J. Hallman2, D. Hardtke15, J. W. Harris31, M. Heffner5, S. Heppelmann21, T. Herston23, B. Hippolyte13, A. Hirsch23, E. Hjort15, G. W. Hoffmann27, M. Horsley31, H. Z. Huang6, T. J. Humanic20, H. Hümmler16, G. Igo6, A. Ishihara27, Yu. I. Ivanshin10, P. Jacobs15, W. W. Jacobs12, M. Janik28, I. Johnson15, P. G. Jones3, E. Judd4, M. Kaneta15, M. Kaplan7, D. Keane14, A. Kisiel28, J. Klay5, S. R. Klein15, A. Klyachko12, A. S. Konstantinov22, L. Kotchenda18, A. D. Kovalenko9, M. Kramer19, P. Kravtsov18, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde31, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, L. Lakehal-Ayat26, J. Lamas-Valverde24, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell27, B. Lasiuk31, F. Laue2, A. Lebedev2, T. LeCompte1, R. Lednický9, V. M. Leontiev22, P. Leszczynski28, M. J. LeVine2, Q. Li30, Q. Li15, S. J. Lindenbaum19, M. A. Lisa20, T. Ljubicic2, W. J. Llope24, G. LoCurto16, H. Long6, R. S. Longacre2, M. Lopez-Noriega20, W. A. Love2, D. Lynn2, R. Majka31, A. Maliszewski28, S. Margetis14, L. Martin26, J. Marx15, H. S. Matis15, Yu. A. Matulenko22, T. S. McShane8, F. Meissner15, Yu. Melnick22, A. Meschanin22, M. Messer2, M. L. Miller31, Z. Milosevich7, N. G. Minaev22, J. Mitchell24, V. A. Moiseenko10, D. Moltz15, C. F. Moore27, V. Morozov15, M. M. de Moura30, M. G. Munhoz25, G. S. Mutchler24, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach22, B. Norman14, S. B. Nurushev22, G. Odyniec15, A. Ogawa21, V. Okorokov18, M. Oldenburg16, D. Olson15, G. Paic20, S. U. Pandey30, Y. Panebratsev9, S. Y. Panitkin2, A. I. Pavlinov30, T. Pawlak28, V. Perevoztchikov2, W. Peryt28, V.A. Petrov10, W. Pinganaud26, E. Platner24, J. Pluta28, N. Porile23, J. Porter2, A. M. Poskanzer15, E. Potrebenikova9, D. Prindle29, C. Pruneau30, S. Radomski28, G. Rai15, O. Ravel26, R. L. Ray27, S. V. Razin9,12, D. Reichhold8, J. G. Reid29, F. Retiere15, A. Ridiger18, H. G. Ritter15, J. B. Roberts24, O. V. Rogachevski9, J. L. Romero5, C. Roy26, D. Russ7, V. Rykov30, I. Sakrejda15, J. Sandweiss31, A. C. Saulys2, I. Savin10, J. Schambach27, R. P. Scharenberg23, K. Schweda15, N. Schmitz16, L. S. Schroeder15, A. Schüttauf16, J. Seger8, D. Seliverstov18, P. Seyboth16, E. Shahaliev9, K. E. Shestermanov22, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov31, R. Snellings15, J. Sowinski12, H. M. Spinka1, B. Srivastava23, E. J. Stephenson12, R. Stock11, A. Stolpovsky30, M. Strikhanov18, B. Stringfellow23, H. Stroebele11, C. Struck11, A. A. P. Suaide30, E. Sugarbaker20, C. Suire13, M. Sumbera9, T. J. M. Symons15, A. Szanto de Toledo25, P. Szarwas28, J. Takahashi25, A. H. Tang14, J. H. Thomas15, V. Tikhomirov18, T. A. Trainor29, S. Trentalange6, M. Tokarev9, M. B. Tonjes17, V. Trofimov18, O. Tsai6, K. Turner2, T. Ullrich2, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen17, A. Vanyashin15, I. M. Vasilevski10, A. N. Vasiliev22, S. E. Vigdor12, S. A. Voloshin30, F. Wang23, H. Ward27, J. W. Watson14, R. Wells20, T. Wenaus2, G. D. Westfall17, C. Whitten, Jr.6, H. Wieman15, R. Willson20, S. W. Wissink12, R. Witt14, N. Xu15, Z. Xu31, A. E. Yakutin22, E. Yamamoto6, J. Yang6, P. Yepes24, A. Yokosawa1, V. I. Yurevich9, Y. V. Zanevski9, I. Zborovský9, W. M. Zhang14, R. Zoulkarneev10, and A. N. Zubarev

Midrapidity antiproton-to-proton ratio from Au+Au collisions at sqrt[sNN] = 130 GeV

We report results on the ratio of midrapidity antiproton-to-proton yields in Au+Au collisions at sqrt[sNN] = 130 GeV per nucleon pair as measured by the STAR experiment at RHIC. Within the rapidity and transverse momentum range of | y|<0.5 and 0.4<pt<1.0 GeV/c, the ratio is essentially independent of either transverse momentum or rapidity, with an average of 0.65±0.01(stat)±0.07(syst) for minimum bias collisions. Within errors, no strong centrality dependence is observed. The results indicate that at this RHIC energy, although the p-p-bar pair production becomes important at midrapidity, a significant excess of baryons over antibaryons is still present.alle Autoren: C. Adler11, Z. Ahammed25, C. Allgower12, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,25, L. S. Barnby15, J. Baudot13, S. Bekele22, V. V. Belaga9, R. Bellwied32, J. Berger11, H. Bichsel31, L. C. Bland12, C. O. Blyth3, B. E. Bonner26, R. Bossingham16, A. Boucham28, A. Brandin20, H. Caines22, M. Calderón de la Barca Sánchez33, A. Cardenas25, J. Carroll16, J. Castillo28, M. Castro32, D. Cebra5, S. Chattopadhyay32, M. L. Chen2, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian33, B. Choi29, W. Christie2, J. P. Coffin13, L. Conin28, T. M. Cormier32, J. G. Cramer31, H. J. Crawford4, M. DeMello26, W. S. Deng15, A. A. Derevschikov24, L. Didenko2, J. E. Draper5, V. B. Dunin9, J. C. Dunlop33, V. Eckardt18, L. G. Efimov9, V. Emelianov20, J. Engelage4, G. Eppley26, B. Erazmus28, P. Fachini27, M. I. Ferguson6, E. Finch33, Y. Fisyak2, D. Flierl11, K. J. Foley2, N. Gagunashvili9, J. Gans33, M. Germain13, F. Geurts26, V. Ghazikhanian6, J. Grabski30, O. Grachov32, D. Greiner16, V. Grigoriev20, E. Gushin20, T. J. Hallman2, D. Hardtke16, J. W. Harris33, M. Heffner5, S. Heppelmann23, T. Herston25, B. Hippolyte13, A. Hirsch25, E. Hjort25, G. W. Hoffmann29, M. Horsley33, H. Z. Huang6, T. J. Humanic22, H. Hümmler18, G. J. Igo6, A. Ishihara29, Yu. I. Ivanshin10, P. Jacobs16, W. W. Jacobs12, M. Janik30, I. Johnson16, P. G. Jones3, E. Judd4, M. Kaneta16, M. Kaplan7, D. Keane15, A. Khodinov20, A. Kisiel30, J. Klay5, S. R. Klein16, A. Klyachko12, A. S. Konstantinov24, L. Kotchenda20, A. D. Kovalenko9, M. Kramer21, P. Kravtsov20, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde33, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, J. Lamas-Valverde26, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell29, B. Lasiuk33, F. Laue22, A. Lebedev2, T. LeCompte1, V. M. Leontiev24, P. Leszczynski30, M. J. LeVine2, Q. Li32, Q. Li16, S. J. Lindenbaum21, M. A. Lisa22, T. Ljubicic2, W. J. Llope26, G. LoCurto18, H. Long6, R. S. Longacre2, M. Lopez-Noriega22, W. A. Love2, D. Lynn2, L. Madansky14*, R. Majka33, A. Maliszewski30, S. Margetis15, L. Martin28, J. Marx16, H. S. Matis16, Yu. A. Matulenko24, T. S. McShane8, Yu. Melnick24, A. Meschanin24, Z. Milosevich7, N. G. Minaev24, J. Mitchell14, V. A. Moiseenko10, D. Moltz16, C. F. Moore29, V. Morozov16, M. M. de Moura27, M. G. Munhoz27, G. S. Mutchler26, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach24, B. Norman15, S. B. Nurushev24, J. Nystrand16, G. Odyniec16, A. Ogawa23, C. A. Ogilvie17, M. Oldenburg18, D. Olson16, G. Paic22, S. U. Pandey32, Y. Panebratsev9, S. Y. Panitkin15, A. I. Pavlinov32, T. Pawlak30, V. Perevoztchikov2, W. Peryt30, V. A. Petrov10, W. Pinganaud28, E. Platner26, J. Pluta30, N. Porile25, J. Porter2, A. M. Poskanzer16, E. Potrebenikova9, D. Prindle31, C. Pruneau32, S. Radomski30, G. Rai16, O. Ravel28, R. L. Ray29, S. V. Razin9,12, D. Reichhold8, J. Reid31, F. Retiere16, A. Ridiger20, H. G. Ritter16, J. B. Roberts26, O. V. Rogachevski9, C. Roy28, D. Russ7, V. Rykov32, I. Sakrejda16, J. Sandweiss33, A. C. Saulys2, I. Savin10, J. Schambach29, R. P. Scharenberg25, N. Schmitz18, L. S. Schroeder16, A. Schüttauf18, J. Seger8, D. Seliverstov20, P. Seyboth18, K. E. Shestermanov24, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov33, R. Snellings16, J. Sowinski12, H. M. Spinka1, B. Srivastava25, E. J. Stephenson12, R. Stock11, A. Stolpovsky32, M. Strikhanov20, B. Stringfellow25, H. Stroebele11, C. Struck11, A. A. P. Suaide2,7, E. Sugarbaker22, C. Suire13, T. J. M. Symons1,6, A. Szanto de Toledo27, P. Szarwas30, J. Takahashi27, A. H. Tang15, J. H. Thomas16, V. Tikhomirov20, T. Trainor31, S. Trentalange6, M. Tokarev9, M. B. Tonjes19, V. Trofimov20, O. Tsai6, K. Turner2, T. Ullrich33, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen19, A. Vanyashin16, I. M. Vasilevski10, A. N. Vasiliev24, S. E. Vigdor12, S. A. Voloshin32, F. Wang25, H. Ward29, R. Wells22, T. Wenaus2, G. D. Westfall19, C. Whitten, Jr.6, H. Wieman16, R. Willson22, S. W. Wissink12, R. Witt15, N. Xu16, Z. Xu33, A. E. Yakutin24, E. Yamamoto6, J. Yang6, P. Yepes26, A. Yokosawa1, V. I. Yurevich9, Y. V. Zanevski9, J. Zhang16, W. M. Zhang15, R. Zoulkarneev10, and A. N. Zubarev

The role of osteopontin in microglia biology: current concepts and future perspectives

The innate immune landscape of the central nervous system (CNS), including the brain and the retina, consists of different myeloid cell populations with distinct tasks to fulfill. Whereas the CNS borders harbor extraparenchymal CNS-associated macrophages whose main duty is to build up a defense against invading pathogens and other damaging factors from the periphery, the resident immune cells of the CNS parenchyma and the retina, microglia, are highly dynamic cells with a plethora of functions during homeostasis and disease. Therefore, microglia are constantly sensing their environment and closely interacting with surrounding cells, which is in part mediated by soluble factors. One of these factors is Osteopontin (OPN), a multifunctional protein that is produced by different cell types in the CNS, including microglia, and is upregulated in neurodegenerative and neuroinflammatory conditions. In this review, we discuss the current literature about the interaction between microglia and OPN in homeostasis and several disease entities, including multiple sclerosis (MS), Alzheimer’s and cerebrovascular diseases (AD, CVD), amyotrophic lateral sclerosis (ALS), age-related macular degeneration (AMD) and diabetic retinopathy (DR), in the context of the molecular pathways involved in OPN signaling shaping the function of microglia. As nearly all CNS diseases are characterized by pathological alterations in microglial cells, accompanied by the disturbance of the homeostatic microglia phenotype, the emergence of disease-associated microglia (DAM) states and their interplay with factors shaping the DAM-signature, such as OPN, is of great interest for therapeutical interventions in the future