Charged Kaon Interferometric Probes of Space-Time Evolution in Au plus Au Collisions at s(NN)=200 GeV

Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanad M, Csorgo T, Dahms T, Das K, David G, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Enokizono A, En'yo H, Espagnon B, Esumi S, Fields DE, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Gastineau F, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, de Cassagnac RG, Grau N, Greene SV, Perdekamp MG, Gunji T, Gustafsson HA, Hachiya T, Henni AH, Haggerty JS, Hagiwara MN, Hamagaki H, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hur MG, Ichihara T, Imai K, Inaba M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Kawagishi T, Kazantsev AV, Kelly S, Khanzadeev A, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Leitch MJ, Leite MAL, Lim H, Litvinenko A, Liu MX, Li XH, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Masui H, Matathias F, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakamura T, Newby J, Nguyen M, Norman BE, Nouicer R, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Omiwade OO, Oskarsson A, Otterlund I, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sato HD, Sato S, Sawada S, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Skutnik S, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarjan P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjo H, Tyurin N, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Vznuzdaev E, Wagner M, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yanovich A, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zimanyi J, Zolin L

Abstract

Bose-Einstein correlations of charged kaons are used to probe Au+Au collisions at s(NN)=200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three-dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function of N-part(1/3) with a zero intercept. Imaging analysis shows a deviation from a Gaussian tail at r greater than or similar to 10 fm, although the bulk emission at lower radius is well described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy-ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.