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5. Cardiovascular Outcomes in GRADE (Glycemia Reduction Approaches in Type 2 Diabetes: A Comparative Effectiveness Study)

Author

Green, Jennifer B., Everett, Brendan M., Ghosh, Alokananda, Younes, Naji, Krause-Steinrauf, Heidi, Barzilay, Joshua, Desouza, Cyrus, Inzucchi, Silvio E., Pokharel, Yashashwi, Schade, David, Scrymgeour, Alexandra, Tan, Meng H., Utzschneider, Kristina M., Mudaliar, Sunder, Crandall, J.P., McKee, M.D., Behringer-Massera, S., Brown-Friday, J., Xhori, E., Ballentine-Cargill, K., Duran, S., Estrella, H., Gonzalez de la Torre, S., Lukin, J., Phillips, L.S., Burgess, E., Olson, D., Rhee, M., Wilson, P., Raines, T.S., Boers, J., Costello, J., Maher-Albertelli, M., Mungara, R., Savoye, L., White, C.A., Gullett, C., Holloway, L., Morehead, F., Person, S., Sibymon, M., Tanukonda, S., Adams, C., Ross, A., Balasubramanyam, A., Gaba, R., Gonzalez Hattery, E., Ideozu, A., Jimenez, J., Montes, G., Wright, C., Hollander, P., Roe, E., Jackson, A., Smiley, A., Burt, P., Estrada, L., Chionh, K., Ismail-Beigi, F., Falck-Ytter, C., Sayyed Kassem, L., Sood, A., Tiktin, M., Kulow, T., Newman, C., Stancil, K.A., Cramer, B., Iacoboni, J., Kononets, M.V., Sanders, C., Tucker, L., Werner, A., Maxwell, A., McPhee, G., Patel, C., Colosimo, L., Krol, A., Goland, R., Pring, J., Alfano, L., Kringas, P., Hausheer, C., Tejada, J., Gumpel, K., Kirpitch, A., Schneier, H., AbouAssi, H., Chatterjee, R., Feinglos, M.N., English Jones, J., Khan, S.A., Kimpel, J.B., Zimmer, R.P., Furst, M., Satterwhite, B.M., Thacker, C.R., Evans Kreider, K., Mariash, C.N., Mather, K.J., Ismail, H.M., Lteif, A., Mullen, M., Hamilton, T., Patel, N., Riera, G., Jackson, M., Pirics, V., Aguillar, D., Howard, D., Hurt, S., Bergenstal, R., Carlson, A., Martens, T., Johnson, M., Hill, R., Hyatt, J., Jensen, C., Madden, M., Martin, D., Willis, H., Konerza, W., Yang, S., Kleeberger, K., Passi, R., Fortmann, S., Herson, M., Mularski, K., Glauber, H., Prihoda, J., Ash, B., Carlson, C., Ramey, P.A., Schield, E., Torgrimson-Ojerio, B., Arnold, K., Kauffman, B., Panos, E., Sahnow, S., Bays, K., Berame, K., Cook, J., Ghioni, D., Gluth, J., Schell, K., Criscola, J., Friason, C., Jones, S., Nazarov, S., Rassouli, N., Puttnam, R., Ojoawo, B., Nelson, R., Curtis, M., Hollis, B., Sanders-Jones, C., Stokes, K., El-Haqq, Z., Kolli, A., Tran, T., Wexler, D., Larkin, M.E., Meigs, J., Chambers, B., Dushkin, A., Rocchio, G., Yepes, M., Steiner, B., Dulin, H., Cayford, M., Chu, K., DeManbey, A., Hillard, M., Martin, K., Thangthaeng, N., Gurry, L., Kochis, R., Raymond, E., Ripley, V., Stevens, C., Park, J., Aroda, V., Ghazi, A., Magee, M., Ressing, A., Loveland, A., Hamm, M., Hurtado, M., Kuhn, A., Leger, J., Manandhar, L., Mwicigi, F., Sanchez, O., Young, T., Garg, R., Lagari-Libhaber, V., Florez, H.J., Valencia, W.M., Marks, J., Casula, S., Oropesa-Gonzalez, L., Hue, L., Cuadot, A., Nieto-Martinez, R., Riccio Veliz, A.K., Gutt, M., Kendal, Y.J., Veciana, B., Ahmann, A., Aby-Daniel, D., Joarder, F., Morimoto, V., Sprague, C., Yamashita, D., Cady, N., Rivera-Eschright, N., Kirchhoff, P., Morales Gomez, B., Adducci, J., Goncharova, A., Hox, S.H., Petrovitch, H., Matwichyna, M., Jenkins, V., Broadwater, L., Ishii, R.R., Bermudez, N.O., Hsia, D.S., Cefalu, W.T., Greenway, F.L., Waguespack, C., King, E., Fry, G., Dragg, A., Gildersleeve, B., Arceneaux, J., Haynes, N., Thomassie, A., Pavlionis, M., Bourgeois, B., Hazlett, C., Henry, R., Boeder, S., Pettus, J., Diaz, E., Garcia-Acosta, D., Maggs, S., DeLue, C., Stallings, A., Castro, E., Hernandez, S., Krakoff, J., Curtis, J.M., Killean, T., Khalid, M., Joshevama, E., Diaz, E., Martin, D., Tsingine, K., Karshner, T., Albu, J., Pi-Sunyer, F.X., Frances, S., Maggio, C., Ellis, E., Bastawrose, J., Gong, X., Banerji, M.A., August, P., Lee, M., Lorber, D., Brown, N.M., Josephson, D.H., Thomas, L.L., Tsovian, M., Cherian, A., Jacobson, M.H., Mishko, M.M., Kirkman, M.S., Buse, J.B., Diner, J., Dostou, J., Machineni, S., Young, L., Bergamo, K., Goley, A., Kerr, J., Largay, J.F., Guarda, S., Cuffee, J., Culmer, D., Fraser, R., Almeida, H., Coffer, S., Debnam, E., Kiker, L., Morton, S., Josey, K., Fuller, G., Garvey, W.T., Cherrington, A.L., Dyer, D., Lawson, M.C.R., Griffith, O., Agne, A., McCullars, S., Cohen, R.M., Craig, J., Rogge, M.C., Burton, K., Kersey, K., Wilson, C., Lipp, S., Vonder Meulen, M.B., Adkins, C., Onadeko, T., Rasouli, N., Baker, C., Schroeder, E., Razzaghi, M., Lyon, C., Penaloza, R., Underkofler, C., Lorch, R., Douglass, S., Steiner, S., Sivitz, W.I., Cline, E., Knosp, L.K., McConnell, J., Lowe, T., Herman, W.H., Pop-Busui, R., Martin, C., Waltje, A., Katona, A., Goodhall, L., Eggleston, R., Kuo, S., Bojescu, S., Bule, S., Kessler, N., LaSalle, E., Whitley, K., Seaquist, E.R., Bantle, A., Harindhanavudhi, T., Kumar, A., Redmon, B., Bantle, J., Coe, M., Mech, M., Taddese, A., Lesne, L., Smith, S., Kuechenmeister, L., Shivaswamy, V., Burbach, S., Rodriguez, M.G., Seipel, K., Alfred, A., Morales, A.L., Eggert, J., Lord, G., Taylor, W., Tillson, R., Adolphe, A., Burge, M., Duran-Valdez, E., Martinez, J., Bancroft, A., Kunkel, S., Ali Jamaleddin Ahmad, F., Hernandez McGinnis, D., Pucchetti, B., Scripsick, E., Zamorano, A., DeFronzo, R.A., Cersosimo, E., Abdul-Ghani, M., Triplitt, C., Juarez, D., Mullen, M., Garza, R.I., Verastiqui, H., Wright, K., Puckett, C., Raskin, P., Rhee, C., Abraham, S., Jordan, L.F., Sao, S., Morton, L., Smith, O., Osornio Walker, L., Schnurr-Breen, L., Ayala, R., Kreymer, R.B., Sturgess, D., Kahn, S.E., Alarcon-Casas Wright, L., Boyko, E.J., Tsai, E.C., Trence, D.L., Trikudanathan, S., Fattaleh, B.N., Montgomery, B.K., Atkinson, K.M., Kozedub, A., Concepcion, T., Moak, C., Prikhodko, N., Rhothisen, S., Elasy, T.A., Martin, S., Shackelford, L., Goidel, R., Hinkle, N., Lovell, C., Myers, J., Lipps Hogan, J., McGill, J.B., Salam, M., Schweiger, T., Kissel, S., Recklein, C., Clifton, M.J., Tamborlane, W., Camp, A., Gulanski, B., Pham, K., Alguard, M., Gatcomb, P., Lessard, K., Perez, M., Iannone, L., Magenheimer, E., Montosa, A., Cefalu, W.T., Fradkin, J., Burch, H.B., Bremer, A.A., Nathan, D.M., Lachin, J.M., Buse, J.B., Kahn, S.E., Larkin, M.E., Tiktin, M., Wexler, D., Burch, H.B., Bremer, A.A., Lachin, J.M., Bebu, I., Butera, N., Buys, C.J., Fagan, A., Gao, Y., Gramzinski, M.R., Hall, S.D., Kazemi, E., Legowski, E., Liu, H., Suratt, C., Tripputi, M., Arey, A., Backman, M., Bethepu, J., Lund, C., Mangat Dhaliwal, P., McGee, P., Mesimer, E., Ngo, L., Steffes, M., Seegmiller, J., Saenger, A., Arends, V., Gabrielson, D., Conner, T., Warren, S., Day, J., Huminik, J., Soliman, E.Z., Zhang, Z.M., Campbell, C., Hu, J., Keasler, L., Hensley, S., Li, Y., Herman, W.H., Kuo, S., Martin, C., Waltje, A., Mihalcea, R., Min, D.J., Perez-Rosas, V., Prosser, L., Resnicow, K., Ye, W., Shao, H., Zhang, P., Luchsinger, J., Sanchez, D., Assuras, S., Groessl, E., Sakha, F., Chong, H., Hillery, N., Abdouch, I., Bahtiyar, G., Brantley, P., Broyles, F.E., Canaris, G., Copeland, P., Craine, J.J., Fein, W.L., Gliwa, A., Hope, L., Lee, M.S., Meiners, R., Meiners, V., O’Neal, H., Park, J.E., Sacerdote, A., Sledge Jr, E., Soni, L., Steppel-Reznik, J., and Turchin, A.

Published
2024
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6. Heat Diffusion Imaging: In-Plane Thermal Conductivity Measurement of Thin Films in a Broad Temperature Range

Author

Zhu, T., Olson, D. H., Hopkins, P. E., and Zebarjadi, M.

Subjects
Physics - Applied Physics
Abstract

This work combines the principles of the heat spreader method and imaging capability of the thermoreflectance measurements to measure the in-plane thermal conductivity of thin-films without the requirement of film suspension or multiple thermometer deposition. We refer to this hybrid technique as heat diffusion imaging. The thermoreflectance imaging system provides a temperature distribution map across the film surface. The in-plane thermal conductivity can be extracted from the temperature decay profile. By coupling the system with a cryostat, we were able to conduct measurements from 40 K to 400 K. Silicon thin film samples with and without periodic holes were measured and compared with in-plane time-domain thermoreflectance (TDTR) measurement and literature data as validation for heat diffusion imaging., Comment: 7 pages, 5 figures

Published
2020
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7. Intracranial pressure monitoring in patients with acute brain injury in the intensive care unit (SYNAPSE-ICU): an international, prospective observational cohort study

Author

Abdelaty, M., Abed Maillard, S., Ahmed, H., Albrecht, L., Alsudani, A., Amundarain, E.D., Anand, S., Andersen, J.B., Anglada, M., Arabi, Y, Aragao, I., Arias Verdu, M.D., Asehnoune, K., Assunção, F., Audibert, G., Badenes, R., Bajracharya, T., Banco, P., Batista, D., Bertellini, E., Berty Gutiérrez, H., Besch, G., Biston, P., Blandino Ortiz, A., Blazquez, V., Bloria, S., Bonetti, C., Bresil, P., Brunetti, I., Buldini, V., Caillard, A., Calamai, I., Carbonara, M., Caricato, A., Casadio, M.C., Casanova, M., Cavaleiro, P., Celaya Lopez, M., Chan, C.Y., Chauhan, R., Cinotti, R., Corral, L., Cortegiani, A., Cotoia, A., Crippa, I.A., Davidovich, V., Del Bianco, S., Diakaki, C., Dibu, J., Dimoula, A., Domeniconi, G., Dominguez, L.J.Y., Dovbysh, N., Duque, P., Eddelien, H.S., Efthymiou, A., Egmose Larsen, T., Elhadi, M., Favre Eva, E., Fencl, M., Forjan, P., Freitas, R., Fuest, K., Fumale, M., Gakuba, C., Galarza, L., García, M.F., Gasca López, G.A., Gelormini, C., Gempeler, A., Giannopoulos, A., Giménez, M.E., Giugni, A., Glorieux, D., Gonzalez Perez, M.I., Gradisek, P., Grandis, M., Griesdale, D., Gritsan, A., Grotheer, S., Gupta, D., Hallt, E.D., Hawthorne, C., Helbok, R., Holm, M.O., Iasonidou, C., Idowu, O., Ioannoni, E., Izzi, A., Jibaja, M., Kafle, P., Kandamby, D.H., Khan, M.M., Khomiakov, S., Kilapong, B., Kletecka, J., Kojder, K., Kolias, A., Kontoudaki, E., Koukoulitsios, G., Kovac, N., Kozar, S., Krieg, S.M., Kurtz, P., Kyriazopoulos, G., Lamperti, M., Lavicka, P., Lencastre, L., Levin, M., Lightfoot, R., Lindner, A., López Ojeda, P., Lores, A., Lucca, M., Luthra, A., Magni, F., Majholm, B., Makris, D., Maldonado, F., Marudi, A., Maskey, S., Mebis, L., Mejia-Mantilla, J.H., Mendoza, R., Milivojevic, N., Miroz, J.P., Monleon, B., Montes, J.M., Morelli, P., Motta, A., Mouloudi, E., Muehlschlegel, S., Ñamendys Silva, S.A., Nardai, G., Nilam, K., Olson, D., Ozair, A., Pacheco, C., Padilla Juan, J., Palli, E., Panda, N., Pantelas, N., Pariente, L., Pearson, D., Pérez-Araos, R., Picetti, E., Pinedo Portilla, J.L., Pons, B., Pozzi, F., Provaznikova, E., Quartarone, M.C., Quintard, H., Rajbanshi, L., Reade, M., Ribaric, S.F., Rigamonti, A., Rivera, L.L., Roberts, J., Roka, Y.B., Sabelnikovs, O., Sapra, H., Schaller, S.J., Sekhon, M., Sellami, W., Seppelt, I., Serrano, A., Sharma, K., Shrestha, G.S., Shum, H.P., Silva, S., Simoes, M., Sivakumar, S., Siviter, R., Skola, J., Škoti, M., Smitt, M., Soley, R., Sonneville, R., Soragni, A., Soyer, B., Spatenkova, V., Stamou, E.E., Stival, E., Olson, Z., Tánczos, K., Thompson, C., Thomsen, J., Tsikriki, S., Van De Velde, S., Videtta, W., Villa, F., Vrbica, K., Vrettou, C., Westy Hoffmeyer, H., Wolf, S., Yasin Wayhs, S., Zerbi, S.M., Robba, Chiara, Graziano, Francesca, Rebora, Paola, Elli, Francesca, Giussani, Carlo, Oddo, Mauro, Meyfroidt, Geert, Helbok, Raimund, Taccone, Fabio S, Prisco, Lara, Vincent, Jean-Louis, Suarez, Jose I, Stocchetti, Nino, and Citerio, Giuseppe

Published
2021
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8. Research considerations for prospective studies of patients with coma and disorders of consciousness

Author

Tinti, L, Lawson, T, Molteni, E, Kondziella, D, Rass, V, Sharshar, T, Bodien, Y, Giacino, J, Mayer, S, Amiri, M, Muehlschlegel, S, Venkatasubba Rao, C, Vespa, P, Menon, D, Citerio, G, Helbok, R, Mcnett, M, Agarwal, S, Aiyagari, V, Akbari, Y, Albertson, A, Alexander, S, Alexandrov, A, Alkhachroum, A, Al-Mufti, F, Appavu, B, Gebrewold, M, Ayounb, M, Badenes, R, Bader, M, Badjiata, N, Balu, R, Barlow, B, Barra, M, Beekman, R, Beghi, E, Beqiri, E, Berlin, T, Bilotta, F, Bleck, T, Boerwinkle, V, Boly, M, Bonnel, A, Brazzi, L, Brown, E, Bulic, S, Caceres, E, Caceres, A, Cafiero, T, Carroll, E, Cediel, E, Chou, S, Claassen, J, Condie, C, Conti, A, Cosmas, K, Costa, P, Creutzfeldt, C, Dangayach, N, Dauri, M, Debicki, D, Degeorgia, M, Der-Nigoghossian, C, Desai, M, Dhar, R, Diringer, M, Durr, E, Edlow, B, Ercole, A, Estraneo, A, Falcone, G, Farrokh, S, Ferguson, A, Fernandez-Espejo, D, Fink, E, Fins, J, Foreman, B, Franchi, F, Frontera, J, Ganesan, R, Gaspard, N, Ghavam, A, Gibbons, C, Gilmore, E, Glustein, C, Gosseries, O, Green, T, Greer, D, Guanci, M, Gupta, D, Hahn, C, Hakimi, R, Hammond, F, Hanley, D, Hartings, J, Hassan, A, Hemphill, C, Da Cunha, A, Hinson, H, Hirsch, K, Hocker, S, Hu, P, Hu, X, Human, T, Hwang, D, Illes, J, Jaffa, M, James, M, Janas, A, Johnson, S, Jones, M, Jox, R, Kalanuria, A, Keller, E, Kennedy, L, Kennelly, M, Keogh, M, Kim, J, Kim, K, Kirsch, H, Kirschen, M, Ko, N, Kreitzer, N, Kromm, J, Kumar, A, Kurtz, P, Laureys, S, Lejeune, N, Lewis, A, Liang, J, Ling, G, Livesay, S, Luppi, A, Macdonald, J, Maddux, C, Mahanes, D, Mainali, S, Maldonado, N, Ribeiro, R, Mascia, L, Massimini, M, Mathur, R, Mccredie, V, Mejia-Mantilla, J, Mendoza, M, Meyfroidt, G, Mijangos, J, Moberg, D, Moheet, A, Montalenti, E, Monti, M, Morrison, C, Munar, M, Murtaugh, B, Naccache, L, Nagayama, M, Nairon, E, Nakagawa, T, Naldi, A, Narenthiran, G, Natarajan, G, Nemetsky, E, Newcombe, V, Nielsen, N, Niznick, N, Noronha-Falcão, F, Nyquist, P, Olson, D, Othman, M, Owen, A, Padayachy, L, Pajoumand, M, Park, S, Pergakis, M, Perry, H, Polizzotto, L, Pouratian, N, Spivack, M, Prisco, L, Provencio, J, Puglises, F, Puybasset, L, Rao, C, Rasmussen, L, Rasulo, F, Ray, B, Ricci, Z, Richardson, R, Shinotsuka, C, Robba, C, Robertson, C, Rohaut, B, Rolston, J, Romagnoli, S, Rosanova, M, Rosenthal, E, Rowe, S, Rubin, M, Russell, M, Silva, G, Sanz, L, Sarasso, S, Sarwal, A, Schiff, N, Schnakers, C, Seder, D, Shah, V, Shapiro-Rosenbaubm, A, Shapshak, A, Sharma, K, Shutter, L, Sitt, J, Slomine, B, Smetana, K, Smielewski, P, Smith, W, Stamatakis, E, Steinberg, A, Stevens, R, Suarez, J, Sung, G, Sussman, B, Taran, S, Mazzeo, A, Thibaut, A, Thompson, D, Threlkeld, Z, Toker, D, Torbey, M, Tosto, J, Trevick, S, Tsaousi, G, Turgeon, A, Udy, A, Varelas, P, Videtta, W, Voss, H, Vox, F, Wagner, A, Wahlster, S, Wainwright, M, Whyte, J, Witherspoon, B, Yakhkind, A, Yeager, S, Young, M, Zafar, S, Zafonte, R, Zahuranec, D, Zammit, C, Zhang, B, Ziai, W, Zimmerman, L, Zink, E, Tinti, Lorenzo, Lawson, Thomas, Molteni, Erika, Kondziella, Daniel, Rass, Verena, Sharshar, Tarek, Bodien, Yelena G, Giacino, Joseph T, Mayer, Stephan A, Amiri, Moshgan, Muehlschlegel, Susanne, Venkatasubba Rao, Chethan P, Vespa, Paul M, Menon, David K, Citerio, Giuseppe, Helbok, Raimund, McNett, Molly, Agarwal, Sachin, Aiyagari, Venkatesh, Akbari, Yama, Albertson, Asher, Alexander, Sheila, Alexandrov, Anne, Alkhachroum, Ayham, Al-Mufti, Fawaz, Amiri, Moshagan, Appavu, Brian, Gebrewold, Meron Awraris, Ayounb, Marc, Badenes, Rafael, Bader, Mary Kay, Badjiata, Neeraj, Balu, Ram, Barlow, Brooke, Barra, Megan, Beekman, Rachel, Beghi, Ettore, Beqiri, Erta, Berlin, Tracey, Bilotta, Federico, Bleck, Thomas, Bodien, Yelena, Boerwinkle, Varina, Boly, Melanie, Bonnel, Alexandra, Brazzi, Luca, Brown, Emery, Bulic, Sebina, Caceres, Eder, Caceres, Adrian, Cafiero, Tullio, Carroll, Elizabeth, Cediel, Emilio G, Chou, Sherry, Claassen, Jan, Condie, Chad, Conti, Alfredo, Cosmas, Katie, Costa, Paolo, Creutzfeldt, Claire, Dangayach, Neha, Dauri, Mario, Debicki, Derek, DeGeorgia, Michael, Der-Nigoghossian, Caroline, Desai, Masoom, Dhar, Rajat, Diringer, Michael, Durr, Emily, Edlow, Brian, Ercole, Ari, Estraneo, Anna, Falcone, Guido, Farrokh, Salia, Ferguson, Adam, Fernandez-Espejo, Davinia, Fink, Ericka, Fins, Joseph, Foreman, Brandon, Franchi, Federico, Frontera, Jennifer, Ganesan, Rishi, Gaspard, Nicolas, Ghavam, Ahmeneh, Giacino, Joseph, Gibbons, Christie, Gilmore, Emily, Glustein, Chavie, Gosseries, Olivia, Green, Theresa, Greer, David, Guanci, Mary, Gupta, Deepak, Hahn, Cecil, Hakimi, Ryan, Hammond, Flora, Hanley, Daniel F, Hartings, Jed, Hassan, Ahmed, Hemphill, Claude, Da Cunha, Arthur Henrique Galvão Bruno, Hinson, Holly, Hirsch, Karen, Hocker, Sarah, Hu, Peter, Hu, Xiao, Human, Theresa, Hwang, David, Illes, Judy, Jaffa, Matthew, James, Michael L, Janas, Anna, Johnson, Susan, Jones, Morgan, Jox, Ralf J, Kalanuria, Atul, Keller, Emanuela, Kennedy, Lori, Kennelly, Megan, Keogh, Maggie, Kim, Jenn, Kim, Keri, Kirsch, Hannah, Kirschen, Matthew, Ko, Nerissa, Kreitzer, Natalie, Kromm, Julie, Kumar, Abhay, Kurtz, Pedro, Laureys, Steven, Lejeune, Nicolas, Lewis, Ariane, Liang, John, Ling, Geoffrey, Livesay, Sarah, Luppi, Andrea, MacDonald, Jennifer, Maddux, Craig, Mahanes, Dea, Mainali, Shraddha, Maldonado, Nelson, Ribeiro, Rennan Martins, Mascia, Luciana, Massimini, Marcello, Mathur, Rohan, Mayer, Stephan, McCredie, Victoria, Mejia-Mantilla, Jorge, Mendoza, Michael, Menon, David, Meyfroidt, Geert, Mijangos, Julio, Moberg, Dick, Moheet, Asma, Montalenti, Elisa, Monti, Martin, Morrison, Chris, Munar, Marina, Murtaugh, Brooke, Naccache, Lionel, Nagayama, Masao, Nairon, Emerson, Nakagawa, Thomas, Naldi, Andrea, Narenthiran, Ganesalingam, Natarajan, Girija, Nemetsky, Esther, Newcombe, Virginia, Nielsen, Niklas, Niznick, Naomi, Noronha-Falcão, Filipa, Nyquist, Paul, Olson, DaiWai, Othman, Marwan, Owen, Adrian, Padayachy, Llewellyn, Pajoumand, Mehrnaz, Park, Soojin, Pergakis, Melissa, Perry, Heidi, Polizzotto, Len, Pouratian, Nader, Spivack, Marilyn Price, Prisco, Lara, Provencio, Javier, Puglises, Francesco, Puybasset, Louis, Rao, Chethan, Rasmussen, Lindsay, Rasulo, Frank, Ray, Bappaditya, Ricci, Zaccaria, Richardson, Risa, Shinotsuka, Cassia Righy, Robba, Chiara, Robertson, Courtney, Rohaut, Benjamin, Rolston, John, Romagnoli, Stefano, Rosanova, Mario, Rosenthal, Eric, Rowe, Shaun, Rubin, Michael, Russell, Mary Beth, Silva, Gisele Sampaio, Sanz, Leandro, Sarasso, Simone, Sarwal, Aarti, Schiff, Nicolas, Schnakers, Caroline, Seder, David, Shah, Vishank Arun, Shapiro-Rosenbaubm, Amy, Shapshak, Angela, Sharma, Kartavya, Sharma, Kumar Ajay, Shutter, Lori, Sitt, Jacobo, Slomine, Beth, Smetana, Keaton, Smielewski, Peter, Smith, Wade, Stamatakis, Emmanuel, Steinberg, Alexis, Stevens, Robert, Suarez, Jose, Sung, Gene, Sussman, Bethany, Taran, Shaurya, Mazzeo, Anna Teresa, Thibaut, Aurore, Thompson, David, Threlkeld, Zachary, Toker, Daniel, Torbey, Michel, Tosto, Jenna, Trevick, Stephen, Tsaousi, Georgia, Turgeon, Alexis, Udy, Andrew, Varelas, Panos, Vespa, Paul, Videtta, Walter, Voss, Henning, Vox, Ford, Wagner, Amy, Wahlster, Sarah, Wainwright, Mark, Whyte, John, Witherspoon, Briana, Yakhkind, Aleksandra (Sasha), Yeager, Susan, Young, Michael, Zafar, Sahar, Zafonte, Ross, Zahuranec, Darin, Zammit, Chris, Zhang, Bei, Ziai, Wendy, Zimmerman, Lara, Zink, Elizabeth, Tinti, L, Lawson, T, Molteni, E, Kondziella, D, Rass, V, Sharshar, T, Bodien, Y, Giacino, J, Mayer, S, Amiri, M, Muehlschlegel, S, Venkatasubba Rao, C, Vespa, P, Menon, D, Citerio, G, Helbok, R, Mcnett, M, Agarwal, S, Aiyagari, V, Akbari, Y, Albertson, A, Alexander, S, Alexandrov, A, Alkhachroum, A, Al-Mufti, F, Appavu, B, Gebrewold, M, Ayounb, M, Badenes, R, Bader, M, Badjiata, N, Balu, R, Barlow, B, Barra, M, Beekman, R, Beghi, E, Beqiri, E, Berlin, T, Bilotta, F, Bleck, T, Boerwinkle, V, Boly, M, Bonnel, A, Brazzi, L, Brown, E, Bulic, S, Caceres, E, Caceres, A, Cafiero, T, Carroll, E, Cediel, E, Chou, S, Claassen, J, Condie, C, Conti, A, Cosmas, K, Costa, P, Creutzfeldt, C, Dangayach, N, Dauri, M, Debicki, D, Degeorgia, M, Der-Nigoghossian, C, Desai, M, Dhar, R, Diringer, M, Durr, E, Edlow, B, Ercole, A, Estraneo, A, Falcone, G, Farrokh, S, Ferguson, A, Fernandez-Espejo, D, Fink, E, Fins, J, Foreman, B, Franchi, F, Frontera, J, Ganesan, R, Gaspard, N, Ghavam, A, Gibbons, C, Gilmore, E, Glustein, C, Gosseries, O, Green, T, Greer, D, Guanci, M, Gupta, D, Hahn, C, Hakimi, R, Hammond, F, Hanley, D, Hartings, J, Hassan, A, Hemphill, C, Da Cunha, A, Hinson, H, Hirsch, K, Hocker, S, Hu, P, Hu, X, Human, T, Hwang, D, Illes, J, Jaffa, M, James, M, Janas, A, Johnson, S, Jones, M, Jox, R, Kalanuria, A, Keller, E, Kennedy, L, Kennelly, M, Keogh, M, Kim, J, Kim, K, Kirsch, H, Kirschen, M, Ko, N, Kreitzer, N, Kromm, J, Kumar, A, Kurtz, P, Laureys, S, Lejeune, N, Lewis, A, Liang, J, Ling, G, Livesay, S, Luppi, A, Macdonald, J, Maddux, C, Mahanes, D, Mainali, S, Maldonado, N, Ribeiro, R, Mascia, L, Massimini, M, Mathur, R, Mccredie, V, Mejia-Mantilla, J, Mendoza, M, Meyfroidt, G, Mijangos, J, Moberg, D, Moheet, A, Montalenti, E, Monti, M, Morrison, C, Munar, M, Murtaugh, B, Naccache, L, Nagayama, M, Nairon, E, Nakagawa, T, Naldi, A, Narenthiran, G, Natarajan, G, Nemetsky, E, Newcombe, V, Nielsen, N, Niznick, N, Noronha-Falcão, F, Nyquist, P, Olson, D, Othman, M, Owen, A, Padayachy, L, Pajoumand, M, Park, S, Pergakis, M, Perry, H, Polizzotto, L, Pouratian, N, Spivack, M, Prisco, L, Provencio, J, Puglises, F, Puybasset, L, Rao, C, Rasmussen, L, Rasulo, F, Ray, B, Ricci, Z, Richardson, R, Shinotsuka, C, Robba, C, Robertson, C, Rohaut, B, Rolston, J, Romagnoli, S, Rosanova, M, Rosenthal, E, Rowe, S, Rubin, M, Russell, M, Silva, G, Sanz, L, Sarasso, S, Sarwal, A, Schiff, N, Schnakers, C, Seder, D, Shah, V, Shapiro-Rosenbaubm, A, Shapshak, A, Sharma, K, Shutter, L, Sitt, J, Slomine, B, Smetana, K, Smielewski, P, Smith, W, Stamatakis, E, Steinberg, A, Stevens, R, Suarez, J, Sung, G, Sussman, B, Taran, S, Mazzeo, A, Thibaut, A, Thompson, D, Threlkeld, Z, Toker, D, Torbey, M, Tosto, J, Trevick, S, Tsaousi, G, Turgeon, A, Udy, A, Varelas, P, Videtta, W, Voss, H, Vox, F, Wagner, A, Wahlster, S, Wainwright, M, Whyte, J, Witherspoon, B, Yakhkind, A, Yeager, S, Young, M, Zafar, S, Zafonte, R, Zahuranec, D, Zammit, C, Zhang, B, Ziai, W, Zimmerman, L, Zink, E, Tinti, Lorenzo, Lawson, Thomas, Molteni, Erika, Kondziella, Daniel, Rass, Verena, Sharshar, Tarek, Bodien, Yelena G, Giacino, Joseph T, Mayer, Stephan A, Amiri, Moshgan, Muehlschlegel, Susanne, Venkatasubba Rao, Chethan P, Vespa, Paul M, Menon, David K, Citerio, Giuseppe, Helbok, Raimund, McNett, Molly, Agarwal, Sachin, Aiyagari, Venkatesh, Akbari, Yama, Albertson, Asher, Alexander, Sheila, Alexandrov, Anne, Alkhachroum, Ayham, Al-Mufti, Fawaz, Amiri, Moshagan, Appavu, Brian, Gebrewold, Meron Awraris, Ayounb, Marc, Badenes, Rafael, Bader, Mary Kay, Badjiata, Neeraj, Balu, Ram, Barlow, Brooke, Barra, Megan, Beekman, Rachel, Beghi, Ettore, Beqiri, Erta, Berlin, Tracey, Bilotta, Federico, Bleck, Thomas, Bodien, Yelena, Boerwinkle, Varina, Boly, Melanie, Bonnel, Alexandra, Brazzi, Luca, Brown, Emery, Bulic, Sebina, Caceres, Eder, Caceres, Adrian, Cafiero, Tullio, Carroll, Elizabeth, Cediel, Emilio G, Chou, Sherry, Claassen, Jan, Condie, Chad, Conti, Alfredo, Cosmas, Katie, Costa, Paolo, Creutzfeldt, Claire, Dangayach, Neha, Dauri, Mario, Debicki, Derek, DeGeorgia, Michael, Der-Nigoghossian, Caroline, Desai, Masoom, Dhar, Rajat, Diringer, Michael, Durr, Emily, Edlow, Brian, Ercole, Ari, Estraneo, Anna, Falcone, Guido, Farrokh, Salia, Ferguson, Adam, Fernandez-Espejo, Davinia, Fink, Ericka, Fins, Joseph, Foreman, Brandon, Franchi, Federico, Frontera, Jennifer, Ganesan, Rishi, Gaspard, Nicolas, Ghavam, Ahmeneh, Giacino, Joseph, Gibbons, Christie, Gilmore, Emily, Glustein, Chavie, Gosseries, Olivia, Green, Theresa, Greer, David, Guanci, Mary, Gupta, Deepak, Hahn, Cecil, Hakimi, Ryan, Hammond, Flora, Hanley, Daniel F, Hartings, Jed, Hassan, Ahmed, Hemphill, Claude, Da Cunha, Arthur Henrique Galvão Bruno, Hinson, Holly, Hirsch, Karen, Hocker, Sarah, Hu, Peter, Hu, Xiao, Human, Theresa, Hwang, David, Illes, Judy, Jaffa, Matthew, James, Michael L, Janas, Anna, Johnson, Susan, Jones, Morgan, Jox, Ralf J, Kalanuria, Atul, Keller, Emanuela, Kennedy, Lori, Kennelly, Megan, Keogh, Maggie, Kim, Jenn, Kim, Keri, Kirsch, Hannah, Kirschen, Matthew, Ko, Nerissa, Kreitzer, Natalie, Kromm, Julie, Kumar, Abhay, Kurtz, Pedro, Laureys, Steven, Lejeune, Nicolas, Lewis, Ariane, Liang, John, Ling, Geoffrey, Livesay, Sarah, Luppi, Andrea, MacDonald, Jennifer, Maddux, Craig, Mahanes, Dea, Mainali, Shraddha, Maldonado, Nelson, Ribeiro, Rennan Martins, Mascia, Luciana, Massimini, Marcello, Mathur, Rohan, Mayer, Stephan, McCredie, Victoria, Mejia-Mantilla, Jorge, Mendoza, Michael, Menon, David, Meyfroidt, Geert, Mijangos, Julio, Moberg, Dick, Moheet, Asma, Montalenti, Elisa, Monti, Martin, Morrison, Chris, Munar, Marina, Murtaugh, Brooke, Naccache, Lionel, Nagayama, Masao, Nairon, Emerson, Nakagawa, Thomas, Naldi, Andrea, Narenthiran, Ganesalingam, Natarajan, Girija, Nemetsky, Esther, Newcombe, Virginia, Nielsen, Niklas, Niznick, Naomi, Noronha-Falcão, Filipa, Nyquist, Paul, Olson, DaiWai, Othman, Marwan, Owen, Adrian, Padayachy, Llewellyn, Pajoumand, Mehrnaz, Park, Soojin, Pergakis, Melissa, Perry, Heidi, Polizzotto, Len, Pouratian, Nader, Spivack, Marilyn Price, Prisco, Lara, Provencio, Javier, Puglises, Francesco, Puybasset, Louis, Rao, Chethan, Rasmussen, Lindsay, Rasulo, Frank, Ray, Bappaditya, Ricci, Zaccaria, Richardson, Risa, Shinotsuka, Cassia Righy, Robba, Chiara, Robertson, Courtney, Rohaut, Benjamin, Rolston, John, Romagnoli, Stefano, Rosanova, Mario, Rosenthal, Eric, Rowe, Shaun, Rubin, Michael, Russell, Mary Beth, Silva, Gisele Sampaio, Sanz, Leandro, Sarasso, Simone, Sarwal, Aarti, Schiff, Nicolas, Schnakers, Caroline, Seder, David, Shah, Vishank Arun, Shapiro-Rosenbaubm, Amy, Shapshak, Angela, Sharma, Kartavya, Sharma, Kumar Ajay, Shutter, Lori, Sitt, Jacobo, Slomine, Beth, Smetana, Keaton, Smielewski, Peter, Smith, Wade, Stamatakis, Emmanuel, Steinberg, Alexis, Stevens, Robert, Suarez, Jose, Sung, Gene, Sussman, Bethany, Taran, Shaurya, Mazzeo, Anna Teresa, Thibaut, Aurore, Thompson, David, Threlkeld, Zachary, Toker, Daniel, Torbey, Michel, Tosto, Jenna, Trevick, Stephen, Tsaousi, Georgia, Turgeon, Alexis, Udy, Andrew, Varelas, Panos, Vespa, Paul, Videtta, Walter, Voss, Henning, Vox, Ford, Wagner, Amy, Wahlster, Sarah, Wainwright, Mark, Whyte, John, Witherspoon, Briana, Yakhkind, Aleksandra (Sasha), Yeager, Susan, Young, Michael, Zafar, Sahar, Zafonte, Ross, Zahuranec, Darin, Zammit, Chris, Zhang, Bei, Ziai, Wendy, Zimmerman, Lara, and Zink, Elizabeth

Abstract

Disorders of consciousness are neurological conditions characterized by impaired arousal and awareness of self and environment. Behavioural responses are absent or are present but fluctuate. Disorders of consciousness are commonly encountered as a consequence of both acute and chronic brain injuries, yet reliable epidemiological estimates would require inclusive, operational definitions of the concept, as well as wider knowledge dissemination among involved professionals. Whereas several manifestations have been described, including coma, vegetative state/unresponsive wakefulness syndrome and minimally conscious state, a comprehensive neurobiological definition for disorders of consciousness is still lacking. The scientific literature is primarily observational, and studies-specific aetiologies lead to disorders of consciousness. Despite advances in these disease-related forms, there remains uncertainty about whether disorders of consciousness are a disease-agnostic unitary entity with a common mechanism, prognosis or treatment response paradigm. Our knowledge of disorders of consciousness has also been hampered by heterogeneity of study designs, variables, and outcomes, leading to results that are not comparable for evidence synthesis. The different backgrounds of professionals caring for patients with disorders of consciousness and the different goals at different stages of care could partly explain this variability. The Prospective Studies working group of the Neurocritical Care Society Curing Coma Campaign was established to create a platform for observational studies and future clinical trials on disorders of consciousness and coma across the continuum of care. In this narrative review, the author panel presents limitations of prior observational clinical research and outlines practical considerations for future investigations. A narrative review format was selected to ensure that the full breadth of study design considerations could be addressed and to facilit

Published
2024

11. Measurement of Charge Multiplicity Asymmetry Correlations in High Energy Nucleus-Nucleus Collisions at 200 GeV

Author

STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Poljak, N., Porter, J., Powell, C. B., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Vossen, A., Wada, M., Wang, F., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

A study is reported of the same- and opposite-sign charge-dependent azimuthal correlations with respect to the event plane in Au+Au collisions at 200 GeV. The charge multiplicity asymmetries between the up/down and left/right hemispheres relative to the event plane are utilized. The contributions from statistical fluctuations and detector effects were subtracted from the (co-)variance of the observed charge multiplicity asymmetries. In the mid- to most-central collisions, the same- (opposite-) sign pairs are preferentially emitted in back-to-back (aligned on the same-side) directions. The charge separation across the event plane, measured by the difference, $\Delta$, between the like- and unlike-sign up/down $-$ left/right correlations, is largest near the event plane. The difference is found to be proportional to the event-by-event final-state particle ellipticity (via the observed second-order harmonic $v^{\rm obs}_{2}$), where $\Delta=(1.3\pm1.4({\rm stat})^{+4.0}_{-1.0}({\rm syst}))\times10^{-5}+(3.2\pm0.2({\rm stat})^{+0.4}_{-0.3}({\rm syst}))\times10^{-3}v^{\rm obs}_{2}$ for 20-40% Au+Au collisions. The implications for the proposed chiral magnetic effect are discussed., Comment: 27 pages, 25 figures, 2 tables

Published
2013
Full Text
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12. Fluctuations of charge separation perpendicular to the event plane and local parity violation in sqrt(sNN)=200 GeV Au+Au collisions at RHIC

Author

STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

Previous experimental results based on data (15 million events) collected by the STAR detector at RHIC suggest event-by-event charge separation fluctuations perpendicular to the event plane in non-central heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high statistics 200 GeV Au+Au collisions data set (57 million events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same and opposite charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion., Comment: 10 pages, 9 figures

Published
2013

13. Freeze-out Dynamics via Charged Kaon Femtoscopy in sqrt(sNN)=200 GeV Central Au+Au Collisions

Author

STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

We present measurements of three-dimensional correlation functions of like-sign low transverse momentum kaon pairs from sqrt(sNN)=200 GeV Au+Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass m_T over the interval of 0.55<=m_T<=1.15 GeV/c^2. While the kaon radii are adequately described by the m_T-scaling in the outward and sideward directions, in the longitudinal direction the lowest m_T value exceeds the expectations from a pure hydrodynamical model prediction., Comment: 8 pages, 4 figures

Published
2013
Full Text
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14. System size dependence of transverse momentum correlations at $\sqrt{s_{NN}}=$ 62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider

Author

STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

We present a study of the average transverse momentum ($p_t$) fluctuations and $p_t$ correlations for charged particles produced in Cu+Cu collisions at midrapidity for $\sqrt{s_{NN}} =$ 62.4 and 200 GeV. These results are compared with those published for Au+Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the $p_t$ correlation results have been studied as functions of the collision centralities, the ranges in $p_t$, the pseudorapidity $\eta$, and the azimuthal angle $\phi$. The square root of the measured $p_t$ correlations when scaled by mean $p_t$ is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations., Comment: 12 pages and 9 figures. Published in Physical Review C

Published
2013
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15. Observation of an energy-dependent difference in elliptic flow between particles and anti-particles in relativistic heavy ion collisions

Author

Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

Elliptic flow ($v_{2}$) values for identified particles at mid-rapidity in Au+Au collisions, measured by the STAR experiment in the Beam Energy Scan at RHIC at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV, are presented. A beam-energy dependent difference of the values of $v_{2}$ between particles and corresponding anti-particles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and anti-particles are not consistent with the universal number-of-constituent-quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV.

Published
2013
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16. Elliptic flow of identified hadrons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV

Author

Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

Measurements of the elliptic flow, $v_{2}$, of identified hadrons ($\pi^{\pm}$, $K^{\pm}$, $K_{s}^{0}$, $p$, $\bar{p}$, $\phi$, $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$) in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR experiment during the Beam Energy Scan program at RHIC. A significant difference in the $v_{2}$ values for particles and the corresponding anti-particles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, $\sqrt{s_{NN}}$ (or increasing baryon chemical potential, $\mu_{B}$) and is larger for the baryons as compared to the mesons. This implies that particles and anti-particles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV. However, for the group of particles NCQ scaling at $(m_{T}-m_{0})/n_{q}>$ 0.4 GeV/$c^{2}$ is not violated within $\pm$10%. The $v_{2}$ values for $\phi$ mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured $p_{T}$ values.

Published
2013
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17. Third Harmonic Flow of Charged Particles in Au+Au Collisions at sqrtsNN = 200 GeV

Author

STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L. -X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I. -K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v_3, known as triangular flow. The analysis is for charged particles in Au+Au collisions at sqrtsNN = 200 GeV, based on data from the STAR experiment at the Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations., Comment: 12 pages, 12 figures

Published
2013
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19. Single Spin Asymmetry $A_N$ in Polarized Proton-Proton Elastic Scattering at $\sqrt{s}=200$ GeV

Author

STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the four-momentum transfer squared $t$ range $0.003 \leqslant |t| \leqslant 0.035$ $\GeVcSq$, the region of a significant interference between the electromagnetic and hadronic scattering amplitudes. The measured values of $A_N$ and its $t$-dependence are consistent with a vanishing hadronic spin-flip amplitude, thus providing strong constraints on the ratio of the single spin-flip to the non-flip amplitudes. Since the hadronic amplitude is dominated by the Pomeron amplitude at this $\sqrt{s}$, we conclude that this measurement addresses the question about the presence of a hadronic spin flip due to the Pomeron exchange in polarized proton-proton elastic scattering., Comment: 12 pages, 6 figures

Published
2012
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20. Transverse Single-Spin Asymmetry and Cross-Section for pi0 and eta Mesons at Large Feynman-x in Polarized p+p Collisions at sqrt(s)=200 GeV

Author

The STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Bannerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr, C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Measurements of the differential cross-section and the transverse single-spin asymmetry, A_N, vs. x_F for pi0 and eta mesons are reported for 0.4 < x_F < 0.75 at an average pseudorapidity of 3.68. A data sample of approximately 6.3 pb^{-1} was analyzed, which was recorded during p+p collisions at sqrt{s} = 200 GeV by the STAR experiment at RHIC. The average transverse beam polarization was 56%. The cross-section for pi0 is consistent with a perturbative QCD prediction, and the eta/pi0 cross-section ratio agrees with previous mid-rapidity measurements. For 0.55 < x_F < 0.75, A_N for eta (0.210 +- 0.056) is 2.2 standard deviations larger than A_N for pi0 (0.081 +- 0.016)., Comment: 7 pages, 5 figures, Submitted to Phys. Rev. D R.C

Published
2012
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21. Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at sqrt{s}=200 GeV

Author

The STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kowalik, K., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Millane, J., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Sakuma, T., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Sarsour, M., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV. The data represent integrated luminosities of 7.6 /pb with longitudinal polarization and 1.8 /pb with transverse polarization, with 50-55% beam polarization, and were recorded in 2005 and 2006. No evidence is found for the existence of statistically significant jet A_N, A_Sigma, or A_TT at mid-rapidity. Recent model calculations indicate the A_N results may provide new limits on the gluon Sivers distribution in the proton. The asymmetry A_LL significantly improves the knowledge of gluon polarization in the nucleon., Comment: 18 pages, 16 figures, 8 tables

Published
2012

22. Measurements of $D^{0}$ and $D^{*}$ Production in $p$ + $p$ Collisions at $\sqrt{s}$ = 200 GeV

Author

STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

We report measurements of charmed-hadron ($D^{0}$, $D^{*}$) production cross sections at mid-rapidity in $p$ + $p$ collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays $D^{0}\rightarrow K^{-}\pi^{+}$, $D^{*+}\rightarrow D^{0}\pi^{+}\rightarrow K^{-}\pi^{+}\pi^{+}$ and their charge conjugates, covering the $p_T$ range of 0.6$-$2.0 GeV/$c$ and 2.0$-$6.0 GeV/$c$ for $D^{0}$ and $D^{*+}$, respectively. From this analysis, the charm-pair production cross section at mid-rapidity is $d\sigma/dy|_{y=0}^{c\bar{c}}$ = 170 $\pm$ 45 (stat.) $^{+38}_{-59}$ (sys.) $\mu$b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a Fixed-Order Next-to-Leading Logarithm calculation., Comment: 15 pages, 16 figures. Revised version submitted to Phys. Rev. D

Published
2012
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23. Di-electron spectrum at mid-rapidity in $p+p$ collisions at $\sqrt{s} = 200$ GeV

Author

Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.

Subjects
Nuclear Experiment
Abstract

We report on mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via $e^{+}e^{-}$ decays, from $\sqrt{s} = 200$ GeV $p+p$ collisions, measured by the large acceptance experiment STAR at RHIC. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted $\omega\rightarrow e^{+}e^{-}$ invariant yields are consistent with previous measurements. The mid-rapidity yields ($dN/dy$) of $\phi$ and $J/\psi$ are extracted through their di-electron decay channels and are consistent with the previous measurements of $\phi\rightarrow K^{+}K^{-}$ and $J/\psi\rightarrow e^{+}e^{-}$. Our results suggest a new upper limit of the branching ratio of the $\eta \rightarrow e^{+}e^{-}$ of $1.7\times10^{-5}$ at 90% confidence level., Comment: 15 pages, 17 figures, 4 tables. Published

Published
2012
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24. Measurement of the $W \to e \nu$ and $Z/\gamma^* \to e^+e^-$ Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at $\sqrt{s}$ = 500 GeV

Author

STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Banerjee, Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

We report measurements of the charge-separated $W^{+(-)} \to e^{+(-)} + \nu_e(\bar{\nu}_e)$ and $Z/\gamma^* \to e^+e^-$ production cross sections at mid-rapidity in proton-proton collisions at $\sqrt{s}$ = 500 GeV. These results are based on 13.2 pb$^{-1}$ of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the $e \nu$ channel were measured to be $\sigma(pp \to W^+ X) \cdot BR(W^+ \to e^+ \nu_e)$ = 117.3 \pm 5.9(stat) \pm 6.2(syst) \pm 15.2(lumi) pb, and $\sigma(pp \to W^- X) \cdot BR(W^- \to e^- \bar{\nu}_e)$ = 43.3 \pm 4.6(stat) \pm 3.4(syst) \pm 5.6(lumi) pb. For $Z/\gamma^*$ production, $\sigma(pp \to Z/\gamma^* X) \cdot BR(Z/\gamma^* \to e^+ e^-)$ = 7.7 \pm 2.1(stat) $^{+0.5}_{-0.9}$(syst) \pm 1.0(lumi) pb for di-lepton invariant masses $m_{e^+e^-}$ between 70 and 110 GeV/$c^2$. First measurements of the W cross section ratio, $\sigma(pp \to W^+ X) / \sigma(pp \to W^- X)$, at $\sqrt{s}$ = 500 GeV are also reported. Theoretical predictions, calculated using recent parton distribution functions, are found to agree with the measured cross sections., Comment: 14 pages, 12 figures, submitted to Physical Review D

Published
2011
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25. Energy and system-size dependence of two- and four-particle $v_2$ measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow

Author

The STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Ghosh, P., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., de Souza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants $v_2$ ($v_2\{2\}$ and $v_2\{4\}$) for Au+Au and Cu+Cu collisions at center of mass energies $\sqrt{s_{_{\mathrm{NN}}}} = 62.4$ and 200 GeV. The difference between $v_2\{2\}^2$ and $v_2\{4\}^2$ is related to $v_{2}$ fluctuations ($\sigma_{v_2}$) and nonflow $(\delta_{2})$. We present an upper limit to $\sigma_{v_2}/v_{2}$. Following the assumption that eccentricity fluctuations $\sigma_{\epsilon}$ dominate $v_2$ fluctuations $\frac{\sigma_{v_2}}{v_2} \approx \frac{\sigma_{\epsilon}}{\epsilon}$ we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with $v_2\{2\}$ and $v_2\{4\}$. We also present results on the ratio of $v_2$ to eccentricity., Comment: 15 pages, 12 Figures

Published
2011
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26. System size and energy dependence of near-side di-hadron correlations

Author

STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bombara, M., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Dhamija, S., Didenko, L., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gaillard, L., Gangadharan, D. R., Geurts, F., Ghosh, P., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nattrass, C., Nasim, Md., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæ, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

Two-particle azimuthal ($\Delta\phi$) and pseudorapidity ($\Delta\eta$) correlations using a trigger particle with large transverse momentum ($p_T$) in $d$+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV and 200~GeV from the STAR experiment at RHIC are presented. The \ns correlation is separated into a jet-like component, narrow in both $\Delta\phi$ and $\Delta\eta$, and the ridge, narrow in $\Delta\phi$ but broad in $\Delta\eta$. Both components are studied as a function of collision centrality, and the jet-like correlation is studied as a function of the trigger and associated $p_T$. The behavior of the jet-like component is remarkably consistent for different collision systems, suggesting it is produced by fragmentation. The width of the jet-like correlation is found to increase with the system size. The ridge, previously observed in Au+Au collisions at $\sqrt{s_{{NN}}}$ = 200 GeV, is also found in Cu+Cu collisions and in collisions at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV, but is found to be substantially smaller at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV than at $\sqrt{s_{{NN}}}$ = 200 GeV for the same average number of participants ($ \langle N_{\mathrm{part}}\rangle$). Measurements of the ridge are compared to models., Comment: 17 pages, 14 figures, submitted to Phys. Rev. C

Published
2011
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27. Directed and elliptic flow of charged particles in Cu+Cu collisions at $\sqrt{\bm {s_{NN}}} =$ 22.4 GeV

Author

Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lima, 1 L. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schaub, J., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

This paper reports results for directed flow $v_{1}$ and elliptic flow $v_{2}$ of charged particles in Cu+Cu collisions at $\sqrt{s_{NN}}=$ 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4 GeV Cu+Cu collisions the prior observation that $v_1$ is independent of the system size at 62.4 and 200 GeV, and also extend the scaling of $v_1$ with $\eta/y_{\rm beam}$ to this system. The measured $v_2(p_T)$ in Cu+Cu collisions is similar for $\sqrt{s_{NN}} = 22.4-200$ GeV. We also report a comparison with results from transport model (UrQMD and AMPT) calculations. The model results do not agree quantitatively with the measured $v_1(\eta), v_2(p_T)$ and $v_2(\eta)$., Comment: 10 pages,9 figures: Introduction part of the paper is expanded, Fig 9 is changed slightly, more discussion on summary

Published
2011
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28. Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at $\sqrt{s_{\rm NN}}$ = 62 and 200 GeV

Author

STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schaub, J., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., de Souza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity $\eta$ and azimuth $\phi$ for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}} = 62$ and 200 GeV with transverse momentum $p_t \geq 0.15$ GeV/$c$, $|\eta| \leq 1$ and $2\pi$ azimuth. Observed correlations include a {same-side} (relative azimuth $< \pi/2$) 2D peak, a closely-related away-side azimuth dipole, and an azimuth quadrupole conventionally associated with elliptic flow. The same-side 2D peak and away-side dipole are explained by semihard parton scattering and fragmentation (minijets) in proton-proton and peripheral nucleus-nucleus collisions. Those structures follow N-N binary-collision scaling in Au-Au collisions until mid-centrality where a transition to a qualitatively different centrality trend occurs within a small centrality interval. Above the transition point the number of same-side and away-side correlated pairs increases rapidly {relative to} binary-collision scaling, the $\eta$ width of the same-side 2D peak also increases rapidly ($\eta$ elongation) and the $\phi$ width actually decreases significantly. Those centrality trends are more remarkable when contrasted with expectations of jet quenching in a dense medium. Observed centrality trends are compared to {\sc hijing} predictions and to the expected trends for semihard parton scattering and fragmentation in a thermalized opaque medium. We are unable to reconcile a semihard parton scattering and fragmentation origin for the observed correlation structure and centrality trends with heavy ion collision scenarios which invoke rapid parton thermalization. On the other hand, if the collision system is effectively opaque to few-GeV partons the observations reported here would be inconsistent with a minijet picture., Comment: 26 pages, 8 figures, 2 tables

Published
2011
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29. Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV

Author

STAR Collaboration, Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jones, P. G., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nelson, J. M., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, P., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæk, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

We report new STAR measurements of mid-rapidity yields for the $\Lambda$, $\bar{\Lambda}$, $K^{0}_{S}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$ particles in Cu+Cu collisions at \sNN{200}, and mid-rapidity yields for the $\Lambda$, $\bar{\Lambda}$, $K^{0}_{S}$ particles in Au+Au at \sNN{200}. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parameterization based on the fraction of participants that undergo multiple collisions.

Published
2011
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30. Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons

Author

Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, P., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudo-rapidity or relative azimuthal angle from d+Au to central Au+Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties., Comment: By the STAR Collaboration. 6 pages, 2 figures

Published
2011
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31. Measurements of Dihadron Correlations Relative to the Event Plane in Au+Au Collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV

Author

Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sanchez, M. Calderon de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Feng, A., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hofmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, Ohlson, Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Dihadron azimuthal correlations containing a high transverse momentum ($p_T$) trigger particle are sensitive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium, i.e. jet-quenching. Previous measurements revealed a strong modification to dihadron azimuthal correlations in Au+Au collisions with respect to p+p and d+Au collisions. The modification increases with the collision centrality, suggesting a path-length or energy density dependence to the jet-quenching effect. This paper reports STAR measurements of dihadron azimuthal correlations in mid-central (20-60%) Au+Au collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV as a function of the trigger particle's azimuthal angle relative to the event plane, $\phi_s=|\phi_t-\psi_{\rm EP}|$. The azimuthal correlation is studied as a function of both the trigger and associated particle $p_T$. The subtractions of the combinatorial background and anisotropic flow, assuming Zero Yield At Minimum (ZYAM), are described. The correlation results are first discussed with subtraction of the even harmonic (elliptic and quadrangular) flow backgrounds. The away-side correlation is strongly modified, and the modification varies with $\phi_s$, with a double-peak structure for out-of-plane trigger particles. The near-side ridge (long range pseudo-rapidity $\Delta\eta$ correlation) appears to drop with increasing $\phi_s$ while the jet-like component remains approximately constant. The correlation functions are further studied with subtraction of odd harmonic triangular flow background arising from fluctuations. It is found that the triangular flow, while responsible for the majority of the amplitudes, is not sufficient to explain the $\phi_s$-dependence of the ridge or the away-side double-peak structure. ..., Comment: 54 pages, 40 figures, 6 tables. As published

Published
2010
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32. An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement

Author

STAR Collaboration, Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., CalderóndelaBarcaSánchez, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., DavilaLeyva, A., DeSilva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., DerradideSouza, R., Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., DuttaMazumdar, M. R., Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia, E. J., Solis, Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, LX., Harris, J. W., HaysWehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., SzantodeToledo, A., Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., VanBuren, G., vanLeeuwen, M., vanNieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., WhittenJr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, IK., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

The QCD phase diagram lies at the heart of what the RHIC Physics Program is all about. While RHIC has been operating very successfully at or close to its maximum energy for almost a decade, it has become clear that this collider can also be operated at lower energies down to 5 GeV without extensive upgrades. An exploration of the full region of beam energies available at the RHIC facility is imperative. The STAR detector, due to its large uniform acceptance and excellent particle identification capabilities, is uniquely positioned to carry out this program in depth and detail. The first exploratory beam energy scan (BES) run at RHIC took place in 2010 (Run 10), since several STAR upgrades, most importantly a full barrel Time of Flight detector, are now completed which add new capabilities important for the interesting physics at BES energies. In this document we discuss current proposed measurements, with estimations of the accuracy of the measurements given an assumed event count at each beam energy., Comment: 59 pages, 78 figures

Published
2010

33. K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV

Author

Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, Daniel, Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Nuclear Theory
Abstract

We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c to 5 GeV/c. The center of mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, , are presented. The measured N(K*0)/N(K) and N(\phi)/N(K*0) ratios favor the dominance of re-scattering of decay daughters of K*0 over the hadronic regeneration for the K*0 production. In the intermediate pT region (2.0 < pT < 4.0 GeV/c), the elliptic flow parameter, v2, and the nuclear modification factor, RCP, agree with the expectations from the quark coalescence model of particle production., Comment: 14 pages and 13 figures

Published
2010
Full Text
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34. Higher Moments of Net-proton Multiplicity Distributions at RHIC

Author

Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, 3 B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Morozov, M. M. Mondal. B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevsky, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Lattice, High Energy Physics - Phenomenology, Nuclear Theory
Abstract

We report the first measurements of the kurtosis (\kappa), skewness (S) and variance (\sigma^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions at \sqrt(s_NN) = 19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (\mu_B) between 200 - 20 MeV. Our measurements of the products \kappa \sigma^2 and S \sigma, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the \sqrt(s_NN) dependence of \kappa \sigma^2. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for \mu_B below 200 MeV., Comment: 6 pages and 4 figures. Version accepted for publication in Physical Review Letters

Published
2010
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35. Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR

Author

STAR Collaboration, Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, Daniel, Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

Yields, correlation shapes, and mean transverse momenta \pt{} of charged particles associated with intermediate to high-\pt{} trigger particles ($2.5 < \pt < 10$ \GeVc) in d+Au and Au+Au collisions at $\snn=200$ GeV are presented. For associated particles at higher $\pt \gtrsim 2.5$ \GeVc, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle $\pt < 2$ \GeVc, a large enhancement of the near- ($\dphi \sim 0$) and away-side ($\dphi \sim \pi$) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at $\dphi \sim \pi$ in central Au+Au collisions., Comment: 16 pages, 11 figures, updated after journal review

Published
2010
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36. Pion femtoscopy in p+p collisions at sqrt(s)=200 GeV

Author

Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, 3 B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Morozov, M. M. Mondal. B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevsky, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

The STAR Collaboration at RHIC has measured two-pion correlation functions from p+p collisions at sqrt(s)=200 GeV. Spatial scales are extracted via a femtoscopic analysis of the correlations, though this analysis is complicated by the presence of strong non-femtoscopic effects. Our results are put into the context of the world dataset of femtoscopy in hadron-hadron collisions. We present the first direct comparison of femtoscopy in p+p and heavy ion collisions, under identical analysis and detector conditions., Comment: 16 pages, 15 figures, as published in Phys. Rev. C

Published
2010
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37. Upsilon cross section in p+p collisions at sqrt(s) = 200 GeV

Author

STAR Collaboration, Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., DePhillips, M., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hallman, T. J., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Hollis, R. S., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W. W., Jakl, P., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Kopytine, M., Koralt, I., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Rehberg, J. M., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wingfield, E., Wissink, S. W., Witt, R., Wu, Y., Xie, W., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., and Zoulkarneeva, Y.

Subjects
Nuclear Experiment
Abstract

We report on a measurement of the Upsilon(1S+2S+3S) -> e+e- cross section at midrapidity in p+p collisions at sqrt(s)=200 GeV. We find the cross section to be 114 +/- 38 (stat.) +23,-24 (syst.) pb. Perturbative QCD calculations at next-to-leading order in the Color Evaporation Model are in agreement with our measurement, while calculations in the Color Singlet Model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of Upsilon data to RHIC energies. The dielectron continuum in the invariant mass range near the Upsilon is also studied to obtain a combined cross section of Drell-Yan plus (b b-bar) -> e+e-., Comment: 17 pages, 14 figures, STAR Collaboration

Published
2010
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39. Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations

Author

Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Baumgart, S., Beavis, D. R., Bellwied, R., Benedosso, F., Betts, R. R., Bhardwaj, S., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bombara, M., Bonner, B. E., Botje, M., Bouchet, J., Braidot, E., Brandin, A. V., Bueltmann, S., Burton, T. P., Bystersky, M., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Callner, J., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, S. U., Clarke, R. F., Codrington, M. J. M., Coffin, J. P., Cormier, T. M., Cosentino, M. R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Daugherity, M., Dedovich, T. G., DePhillips, M., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Du, F., Dunlop, J. C., Mazumdar, M. R. Dutta, Edwards, W. R., Efimov, L. G., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gaillard, L., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S. M., Guimaraes, K. S. F. F., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hallman, T. J., Hamed, A., Harris, J. W., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Hollis, R. S., Huang, H. Z., Humanic, T. J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W. W., Jakl, P., Jin, F., Jones, P. G., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V. Yu., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., LeVine, M. J., Li, C., Li, Y., Lin, G., Lin, X., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, J., Liu, L., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Ludlam, T., Lynn, D., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Matis, H. S., Matulenko, Yu. A., McShane, T. S., Meschanin, A., Millane, J., Miller, M. L., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Nepali, C., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Pal, S. K., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Pruthi, N. K., Putschke, J., Qattan, I. A., Raniwala, R., Raniwala, S., Ray, R. L., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Russcher, M. J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R. P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shi, X-H., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Staszak, D., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tokarev, M., Trainor, T. A., Tram, V. N., Trattner, A. L., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van der Kolk, N., van Leeuwen, M., Molen, A. M. Vander, Varma, R., Vasconcelos, G. M. S., Vasilevski, I. M., Vasiliev, A. N., Videbaek, F., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Waggoner, W. T., Wang, F., Wang, G., Wang, J. S., Wang, Q., Wang, X., Wang, X. L., Wang, Y., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q. H., Xu, Y., Xu, Z., Yepes, P., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W. M., Zhang, Y., Zhang, Z. P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., and Zuo, J. X.

Subjects
Nuclear Experiment
Abstract

We present measurements of net charge fluctuations in $Au + Au$ collisions at $\sqrt{s_{NN}} = $ 19.6, 62.4, 130, and 200 GeV, $Cu + Cu$ collisions at $\sqrt{s_{NN}} = $ 62.4, 200 GeV, and $p + p$ collisions at $\sqrt{s} = $ 200 GeV using the dynamical net charge fluctuations measure $\nu_{+-{\rm,dyn}}$. We observe that the dynamical fluctuations are non-zero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate $1/N_{ch}$ scaling, but display approximate $1/N_{part}$ scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation., Comment: 15 pages, 6 figures, STAR Collaboration

Published
2008
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42. Strange baryon resonance production in $\sqrt{s_{NN}} = 200$ GeV $p+p$ and $Au+Au$ collisions

Author

The STAR collaboration, Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Anderson, M., Arkhipkin, D., Averichev, G. S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Bhardwaj, S., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Blyth, S-L., Bonner, B. E., Botje, M., Bouchet, J., Brandin, A. V., Bravar, A., Burton, T. P., Bystersky, M., Cadman, R. V., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cosentino, M. R., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Dash, S., Daugherity, M., de Moura, M. M., Dedovich, T. G., DePhillips, M., Derevschikov, A. A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S. M., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dunin, V. B., Dunlop, J. C., Mazumdar, M. R. Dutta, Eckardt, V., Edwards, W. R., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C. A., Gaillard, L., Ganti, M. S., Gaudichet, L., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Gorbunov, Y. G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S. M., Guimaraes, K. S. F. F., Gupta, N., Gutierrez, T. D., Haag, B., Hallman, T. J., Hamed, A., Harris, J. W., He, W., Heinz, M., Henry, T. W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Horner, M. J., Huang, H. Z., Huang, S. L., Hughes, E. W., Humanic, T. J., Igo, G., Jacobs, P., Jacobs, W. W., Jakl, P., Jia, F., Jiang, H., Jones, P. G., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Khodyrev, V. Yu., Kim, B. C., Kiryluk, J., Kisiel, A., Kislov, E. M., Klein, S. R., Kocoloski, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K. L., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., LaPointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lehocka, S., LeVine, M. J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Love, W. A., Lu, Y., Ludlam, T., Lynn, D., Ma, G. L., Ma, J. G., Ma, Y. G., Magestro, D., Mahapatra, D. P., Majka, R., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Matis, H. S., Matulenko, Yu. A., McClain, C. J., McShane, T. S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M. L., Minaev, N. G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D. K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ray, R. L., Razin, S. V., Reinnarth, J., Relyea, D., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Russcher, M. J., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P. S., Schambach, J., Scharenberg, R. P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shen, W. Q., Shimanskiy, S. S., Sichtermann, E, Simon, F., Singaraju, R. N., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swanger, M., Symons, T. J. M., de Toledo, A. Szanto, Tai, A., Takahashi, J., Tang, A. H., Tarnowsky, T., Thein, D., Thomas, J. H., Timmins, A. R., Timoshenko, S., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van der Kolk, N., van Leeuwen, M., Molen, A. M. Vander, Varma, R., Vasilevski, I. M., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Waggoner, W. T., Wang, F., Wang, G., Wang, J. S., Wang, X. L., Wang, Y., Watson, J. W., Webb, J. C., Westfall, G. D., Wetzler, A., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Q. H., Xu, Z., Yepes, P., Yoo, I-K., Yurevich, V. I., Zhan, W., Zhang, H., Zhang, W. M., Zhang, Y., Zhang, Z. P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A. N., and Zuo, J. X.

Subjects
Nuclear Experiment
Abstract

We report the measurements of $\Sigma (1385)$ and $\Lambda (1520)$ production in $p+p$ and $Au+Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV from the STAR collaboration. The yields and the $p_{T}$ spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central $Au+Au$ collisions. Our results indicate that there may be a time-span between chemical and thermal freeze-out during which elastic hadronic interactions occur., Comment: 6 pages, 3 figures, Phys. Rev. Lett. 97, 132301 (2006)

Published
2006
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43. Lipid Profiles, Inflammatory Markers, and Insulin Therapy in Youth with Type 2 Diabetes

Author

McKay, S., Haymond, M., Anderson, B., Bush, C., Gunn, S., Holden, H., Jones, S.M., Jeha, G., McGirk, S., Thamotharan, S., Cuttler, L., Abrams, E., Casey, T., Dahms, W., Ievers-Landis, C., Kaminski, B., Koontz, M., MacLeish, S., McGuigan, P., Narasimhan, S., Geffner, M., Barraza, V., Chang, N., Conrad, B., Dreimane, D., Estrada, S., Fisher, L., Fleury-Milfort, E., Hernandez, S., Hollen, B., Kaufman, F., Law, E., Mansilla, V., Miller, D., Muñoz, C., Ortiz, R., Ward, A., Wexler, K., Xu, Y.K., Yasuda, P., Berkowitz, R., Boyd, S., Johnson, B., Kaplan, J., Keating, C., Lassiter, C., Lipman, T., McGinley, G., McKnight, H., Schwartzman, B., Willi, S., Arslanian, S., Foster, S., Galvin, B., Hannon, T., Kriska, A., Marcus, M., Songer, T., Venditti, E., Goland, R., Gallagher, D., Kringas, P., Leibel, N., Ng, D., Ovalles, M., Seidman, D., Laffel, L., Goebel-Fabbri, A., Hall, M., Higgins, L., Keady, J., Malloy, M., Milaszewski, K., Rasbach, L., Nathan, D.M., Angelescu, A., Bissett, L., Ciccarelli, C., Delahanty, L., Goldman, V., Hardy, O., Larkin, M., Levitsky, L., McEachern, R., Norman, D., Nwosu, D., Park-Bennett, S., Richards, D., Sherry, N., Steiner, B., Tollefsen, S., Carnes, S., Dempsher, D., Flomo, D., Whelan, T., Wolff, B., Bowerman, D., Bristol, S., Bulger, J., Hartsig, J., Izquierdo, R., Kearns, J., Saletsky, R., Trief, P., Zeitler, P., Abramson, N., Bradhurst, A., Celona-Jacobs, N., Higgins, J., Kelsey, M., Klingensmith, G., Witten, T., Copeland, K., Boss, E., Brown, R., Chadwick, J., Chalmers, L., Chernausek, S., Hebensperger, A., Macha, C., Newgent, R., Nordyke, A., Olson, D., Poulsen, T., Pratt, L., Preske, J., Schanuel, J., Sternlof, S., Lynch, J., Amodei, N., Barajas, R., Cody, C., Hale, D., Hernandez, J., Ibarra, C., Morales, E., Rivera, S., Rupert, G., Wauters, A., White, N., Arbeláez, A., Jones, J., Jones, T., Sadler, M., Tanner, M., Timpson, A., Welch, R., Caprio, S., Grey, M., Guandalini, C., Lavietes, S., Rose, P., Syme, A., Tamborlane, W., Hirst, K., Edelstein, S., Feit, P., Grover, N., Long, C., Pyle, L., Linder, B., Harting, J., Shepherd, J., Fan, B., Marquez, L., Sherman, M., Wang, J., Nichols, M., Mayer-Davis, E., Liu, Y., Lima, J., Puccella, J., Ricketts, E., Danis, R., Domalpally, A., Goulding, A., Neill, S., Vargo, P., Wilfley, D., Aldrich-Rasche, D., Franklin, K., Massmann, C., O'Brien, D., Patterson, J., Tibbs, T., Van Buren, D., Palmert, M., Ratner, R., Dremaine, D., Silverstein, J., Levitt Katz, Lorraine E., Bacha, Fida, Gidding, Samuel S., Weinstock, Ruth S., El ghormli, Laure, Libman, Ingrid, Nadeau, Kristen J., Porter, Kristin, and Marcovina, Santica

Published
2018
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44. Cardiac Biomarkers in Youth with Type 2 Diabetes Mellitus: Results from the TODAY Study

Author

McKay, S., Haymond, M., Anderson, B., Bush, C., Gunn, S., Holden, H., Jones, S.M., Jeha, G., McGirk, S., Thamotharan, S., Cuttler, L., Abrams, E., Casey, T., Dahms, W., Ievers-Landis, C., Kaminski, B., Koontz, M., MacLeish, S., McGuigan, P., Narasimhan, S., Geffner, M., Barraza, V., Chang, N., Conrad, B., Dreimane, D., Estrada, S., Fisher, L., Fleury-Milfort, E., Hernandez, S., Hollen, B., Kaufman, F., Law, E., Mansilla, V., Miller, D., Muñoz, C., Ortiz, R., Ward, A., Wexler, K., Xu, Y.K., Yasuda, P., Levitt Katz, L., Berkowitz, R., Boyd, S., Johnson, B., Kaplan, J., Keating, C., Lassiter, C., Lipman, T., McGinley, G., McKnight, H., Schwartzman, B., Willi, S., Arslanian, S., Bacha, F., Foster, S., Galvin, B., Hannon, T., Kriska, A., Libman, I., Marcus, M., Porter, K., Songer, T., Venditti, E., Goland, R., Gallagher, D., Kringas, P., Leibel, N., Ng, D., Ovalles, M., Seidman, D., Laffel, L., Goebel-Fabbri, A., Hall, M., Higgins, L., Keady, J., Malloy, M., Milaszewski, K., Rasbach, L., Nathan, D.M., Angelescu, A., Bissett, L., Ciccarelli, C., Delahanty, L., Goldman, V., Hardy, O., Larkin, M., Levitsky, L., McEachern, R., Norman, D., Nwosu, D., Park-Bennett, S., Richards, D., Sherry, N., Steiner, B., Tollefsen, S., Carnes, S., Dempsher, D., Flomo, D., Whelan, T., Wolff, B., Weinstock, R., Bowerman, D., Bristol, S., Bulger, J., Hartsig, J., Izquierdo, R., Kearns, J., Saletsky, R., Trief, P., Zeitler, P., Abramson, N., Bradhurst, A., Celona-Jacobs, N., Higgins, J., Kelsey, M., Klingensmith, G., Nadeau, K., Witten, T., Copeland, K., Boss, E., Brown, R., Chadwick, J., Chalmers, L., Chernausek, S., Hebensperger, A., Macha, C., Newgent, R., Nordyke, A., Olson, D., Poulsen, T., Pratt, L., Preske, J., Schanuel, J., Sternlof, S., Lynch, J., Amodei, N., Barajas, R., Cody, C., Hale, D., Hernandez, J., Ibarra, C., Morales, E., Rivera, S., Rupert, G., Wauters, A., White, N., Arbeláez, A., Jones, J., Jones, T., Sadler, M., Tanner, M., Timpson, A., Welch, R., Caprio, S., Grey, M., Guandalini, C., Lavietes, S., Rose, P., Syme, A., Tamborlane, W., Hirst, K., Edelstein, S., Feit, P., Grover, N., Long, C., Pyle, L., Linder, B., Marcovina, S.M., Harting, J., Shepherd, J., Fan, B., Marquez, L., Sherman, M., Wang, J., Nichols, M., Mayer-Davis, E., Liu, Y., Lima, J., Gidding, S., Puccella, J., Ricketts, E., Danis, R., Domalpally, A., Goulding, A., Neill, S., Vargo, P., Wilfley, D., Aldrich-Rasche, D., Franklin, K., Massmann, C., O'Brien, D., Patterson, J., Tibbs, T., Van Buren, D., Palmert, M., Ratner, R., Dremaine, D., Silverstein, J., Gidding, Samuel S., Bacha, Fida, Bjornstad, Petter, Levitt Katz, Lorraine E., Levitsky, Lynne L., Lynch, Jane, Tryggestad, Jeanie B., Weinstock, Ruth S., El ghormli, Laure, and Lima, Joao A.C.

Published
2018
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45. Near-threshold production of the multi-strange $\Xi^-$ hyperon

Author

Chung, P., Ajitanand, N. N., Alexander, J. M., Anderson, M., Best, D., Brady, F. P., Case, T., Caskey, W., Cebra, D., Chance, J. L., Cole, B., Crowe, K., Das, A. C., Draper, J. E., Gilkes, M. L., Gushue, S., Heffner, M., Hirsch, A. S., Hjort, E. L., Holzmann, W., Huo, L., Issah, M., Justice, M., Kaplan, M., Keane, D., Kintner, J. C., Klay, J., Krofcheck, D., Lacey, R. A., Lauret, J., Lisa, M. A., Liu, H., Liu, Y. M., Milan, J., McGrath, R., Milosevich, Z., Odyniec, G., Olson, D. L., Panitkin, S., Porile, N. T., Rai, G., Ritter, H. G., Romero, J. L., Scharenberg, R., Srivastava, B., Stone, N. T. B, Symons, T. J. M., Taranenko, A., Whitfield, J., Wienold, T., Witt, R., Wood, L., Zhang, W. N., and Oeschler, H.

Subjects
Nuclear Experiment
Abstract

The yield for the multi-strange $\Xi^{-}$ hyperon has been measured in 6 AGeV Au+Au collisions via reconstruction of its decay products $\pi^{-}$ and $\Lambda$, the latter also being reconstructed from its daughter tracks of $\pi^{-}$ and p. The measurement is rather close to the threshold for $\Xi^{-}$ production and therefore provides an important test of model predictions. The measured yield for $\Xi^{-}$ and $\Lambda$ are compared for several centralities. In central collisions the $\Xi^{-}$ yield is found to be in excellent agreement with statistical and transport model predictions, suggesting that multi-strange hadron production approaches chemical equilibrium in high baryon density nuclear matter., Comment: Submitted to PRL

Published
2003
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46. Früh- und Screeningsprechstunden: Ein notwendiger Weg zur besseren Frühversorgung in der internistischen Rheumatologie?: Rheumatologische Früh- und Screeningsprechstundenmodelle in Deutschland

Author

Benesova, K., Lorenz, H.-M., Lion, V., Voigt, A., Krause, A., Sander, O., Schneider, M., Feuchtenberger, M., Nigg, A., Leipe, J., Briem, S., Tiessen, E., Haas, F., Rihl, M., Meyer-Olson, D., Baraliakos, X., Braun, J., Schwarting, A., Dreher, M., Witte, T., Assmann, G., Hoeper, K., Schmidt, R. E., Bartz-Bazzanella, P., Gaubitz, M., and Specker, C.

Published
2019
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47. Comparison of Source Images for protons, $\pi^-$'s and $\Lambda$'s in 6 AGeV Au+Au collisions

Author

Chung, P., Ajitanand, N. N., Alexander, J. M., Anderson, M., Best, D., Brady, F. P., Case, T., Caskey, W., Cebra, D., Chance, J. L., Cole, B., Crowe, K., Das, A. C., Draper, J. E., Gilkes, M. L., Gushue, S., Heffner, M., Hirsch, A. S., Hjort, E. L., Huo, L., Justice, M., Kaplan, M., Keane, D., Kintner, J. C., Klay, J., Krofcheck, D., Lacey, R. A., Lauret, J., Lisa, M. A., Liu, H., Liu, Y. M., McGrath, R., Milosevich, Z., Odyniec, G., Olson, D. L., Panitkin, S., Porile, N. T., Rai, G., Ritter, H. G., Romero, J. L., Scharenberg, R., Srivastava, B., Stone, N. T. B, Symons, T. J. M., Whitfield, J., Witt, R., Wood, L., Zhang, W. N., Brown, D., Pratt, S., Wang, F., and Danielewicz, P.

Subjects
Nuclear Experiment
Abstract

Source images are extracted from two-particle correlations constructed from strange and non-strange hadrons produced in 6 AGeV Au + Au collisions. Very different source images result from pp vs p$\Lambda$ vs $\pi^-\pi^-$ correlations. These observations suggest important differences in the space-time emission histories for protons, pions and neutral strange baryons produced in the same events.

Published
2002
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48. Longitudinal Flow of Protons from 2-8 AGeV Central Au+Au Collisions

Author

E895 Collaboration, Klay, J. L., Ajitanand, N. N., Alexander, J. M., Anderson, M., Best, D., Brady, F. P., Case, T., Caskey, W., Cebra, D., Chance, J. L., Chung, P., Cole, B., Crowe, K., Das, A. C., Draper, J. E., Gilkes, M. L., Gushue, S., Heffner, M., Hirsch, A. S., Hjort, E. L., Huo, L., Justice, M., Kaplan, M., Keane, D., Kintner, J. C., Krofcheck, D., Lacey, R. A., Law, C., Lauret, J., Lisa, M. A., Liu, H., Liu, Y. M., McGrath, R., Milosevich, Z., Odyniec, G., Olson, D. L., Panitkin, S. Y., Pinkenburg, C., Porile, N. T., Rai, G., Ritter, H. G., Romero, J. L., Scharenberg, R., Schroeder, L., Srivastava, B., Stone, N. T. B., Symons, T. J. M., Wang, S., Wells, R., Whitfield, J., Wienold, T., Witt, R., Wood, L., and Zhang, W. N.

Subjects
Nuclear Experiment
Abstract

Rapidity distributions of protons from central $^{197}$Au + $^{197}$Au collisions measured by the E895 Collaboration in the energy range from 2 to 8 AGeV at the Brookhaven AGS are presented. Longitudinal flow parameters derived using a thermal model including collective longitudinal expansion are extracted from these distributions. The results show an approximately linear increase in the longitudinal flow velocity, $<\beta\gamma>_{L}$, as a function of the logarithm of beam energy., Comment: 5 Pages, including 3 figures, 1 table

Published
2001
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49. Laying the groundwork at the AGS: Recent results from experiment E895

Author

E895 Collaboration, Lisa, M. A., Ajitanand, N. N., Alexander, J. M., Anderson, M., Best, D., Brady, F. P., Case, T., Caskey, W., Cebra, D., Chance, J. L., Chung, P., Cole, B., Crowe, K., Das, A. C., Draper, J. E., Gilkes, M. L., Gushue, S., Heffner, M., Hirsch, A. S., Hjort, E. L., Huo, L., Justice, M., Kaplan, M., Keane, D., Kintner, J. C., Klay, J., Krofcheck, D., Lacey, R. A., Law, C., Lauret, J., Liu, H., Liu, Y. M., McGrath, R., Milosevich, Z., Odyniec, G., Olson, D. L., Panitkin, S. Y., Pinkenburg, C., Porile, N. T., Rai, G., Ritter, H. G., Romero, J. L., Scharenberg, R., Schroeder, L., Srivastava, B., Stone, N. T. B., Symons, T. J. M., Wang, S., Wells, R., Whitfield, J., Wienold, T., Witt, R., Wood, L., and Zhang, W. N.

Subjects
Nuclear Experiment
Abstract

The E895 Collaboration at the Brookhaven AGS has performed a systematic investigation of Au+Au collisions at 2-8 AGeV, using a large-acceptance Time Projection Chamber. In addition to extensive measurements of particle flow, spectra, two-particle interferometry, and strangeness production, we have performed novel hybrid analyses, including azimuthally-sensitive pion HBT, extraction of the six-dimensional pion phasespace density, and a first measurement of the Lambda-proton correlation function., Comment: Presented at Quark Matter 2001, 8 pages, 5 figures

Published
2001
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50. Directed Flow of $\Lambda$-Hyperons in 2-6 AGeV Au+Au Collisions

Author

Chung, P., Ajitanand, N. N., Alexander, J. M., Anderson, M., Best, D., Brady, F. P., Case, T., Caskey, W., Cebra, D., Chance, J. L., Cole, B., Crowe, K., Das, A., Draper, J. E., Gilkes, M. L., Gushue, S., Heffner, M., Hirsch, A. S., Hjort, E. L., Huo, L., Justice, M., Kaplan, M., Keane, D., Kintner, J. C., Klay, J., Krofcheck, D., Lacey, R. A., Lauret, J., Lisa, M. A., Liu, H., Liu, Y. M., McGrath, R., Milosevich, Z., Odyniec, G., Olson, D. L., Panitkin, S. Y., Pinkenburg, C., Porile, N. T., Rai, G., Ritter, H. G., Romero, J. L., Scharenberg, R., Schroeder, L., Srivastava, B., BStone, N. T., Symons, T. J. M., Wienold, T., Whitfield, R. Witt J., Wood, L., and Zhang, W. N.

Subjects
Nuclear Experiment
Abstract

Directed flow measurements for $\Lambda$-hyperons are presented and compared to those for protons produced in the same Au+Au collisions (2, 4, and 6 AGeV; $b < 5 - 6$ fm). The measurements indicate that $\Lambda$-hyperons flow consistently in the same direction and with smaller magnitudes than those of protons. Such a strong positive flow [for $\Lambda$s] has been predicted in calculations which include the influence of the $\Lambda$-nucleon potential. The experimental flow ratio $\Lambda$/p is in qualitative agreement with expectations ($\sim 2/3$) from the quark counting rule at 2 AGeV but is found to decrease with increasing beam energy., Comment: 5 pages including 4 Figs. Submitted to Phys. Rev. Lett

Published
2001
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