<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_1_1440330386539_3275">Hi everybody,</div><div id="yui_3_16_0_1_1440330386539_3274"><br></div><div dir="ltr" id="yui_3_16_0_1_1440330386539_3273">I used of a phase space actor to obtain a PhaseSpace.root output which would act as my source. When I open this root file, I face two phase space branches (of number 2 and 3 !) which have two different values as entries, as can be seen in the attached image. I even checked my file size (65 Mb), and I don't know why I have two trees of phase space. <br></div><div id="yui_3_16_0_1_1440330386539_7086" dir="ltr">Does anybody have any idea about this? Which phase space should I rely on? my initial emission was 100000 particles.</div><div id="yui_3_16_0_1_1440330386539_7211" dir="ltr"><br></div><div id="yui_3_16_0_1_1440330386539_7212" dir="ltr">Thanks in advance</div><div id="yui_3_16_0_1_1440330386539_7213" dir="ltr">Somayeh<br></div></div></body></html>