Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider Academic Article uri icon

abstract

  • 2018 American Physical Society. An improved measurement of the H3 lifetime is presented. In this paper, the mesonic decay modes H3He3 + - and H3d+p+- are used to reconstruct the H3 from Au+Au collision data collected by the STAR collaboration at Relativistic Heavy Ion Collider (RHIC). A minimum 2 estimation is used to determine the lifetime of =142-21+24(stat.)29(syst.) ps. This lifetime is about 50% shorter than the lifetime =2632 ps of a free , indicating strong hyperon-nucleon interaction in the hypernucleus system. The branching ratios of the mesonic decay channels are also determined to satisfy B.R.(He3+-)/(B.R.(He3+-)+B.R.(d+p+-))=0.320.05(stat.)0.08(syst.). Our ratio result favors the assignment J(H3)=12 over J(H3)=32. These measurements will help to constrain models of hyperon-baryon interactions.

published proceedings

  • PHYSICAL REVIEW C

altmetric score

  • 0.25

author list (cited authors)

  • Adamczyk, L., Adams, J. R., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., ... Zyzak, M.

citation count

  • 48

complete list of authors

  • Adamczyk, L||Adams, JR||Adkins, JK||Agakishiev, G||Aggarwal, MM||Ahammed, Z||Ajitanand, NN||Alekseev, I||Alford, J||Anderson, DM||Aoyama, R||Aparin, A||Arkhipkin, D||Aschenauer, EC||Ashraf, MU||Attri, A||Averichevi, GS||Bai, X||Bairathi, V||Barish, K||Behera, A||Bellwied, R||Bhasin, A||Bhati, AK||Bhattarai, P||Bielcik, J||Bielcikova, J||Bland, LC||Bordyuzhin, IG||Bouchet, J||Brandenburg, JD||Brandin, AV||Brown, D||Bryslawskyj, J||Bunzarov, I||Butterworth, J||Caines, H||Sanchez, M Calderon De La Barca||Campbell, JM||Cebra, D||Chakaberia, I||Chaloupka, P||Chang, Z||Chankova-Bunzarova, N||Chatterjee, A||Chattopadhyay, S||Chen, X||Chen, JH||Cheng, J||Cherney, M||Christie, W||Contin, G||Crawford, HJ||Das, S||Dedovichi, TG||Deng, J||Deppner, IM||Derevschikov, AA||Didenko, L||Dilks, C||Dong, X||Drachenberg, JL||Draper, JE||Dunlop, JC||Efimov, LG||Elsey, N||Engelage, J||Eppley, G||Esha, R||Esumi, S||Evdokimov, O||Ewigleben, J||Eyser, O||Fatemi, R||Fazio, S||Federic, P||Federicova, P||Fedorisin, J||Feng, Z||Filip, P||Finch, E||Fisyak, Y||Flores, CE||Fujita, J||Fulek, L||Gagliardi, CA||Geurts, F||Gibson, A||Girard, M||Grosnick, D||Gunarathne, DS||Guo, Y||Gupta, A||Guryn, W||Hamad, AI||Hamed, A||Harlenderova, A||Harris, JW||He, L||Heppelmann, S||Herrmann, N||Hirsch, A||Horvat, S||Huang, B||Huang, T||Huang, X||Huang, HZ||Humanic, TJ||Huo, P||Igo, G||Jacobs, WW||Jentsch, A||Jia, J||Jiang, K||Jowzaee, S||Judd, EG||Kabana, S||Kalinkin, D||Kang, K||Kapukchyan, D||Kauder, K||Ke, HW||Keane, D||Kechechyan, A||Khan, Z||Kikola, Dp||Kim, C||Kisel, I||Kisiel, A||Kochenda, L||Kocmanek, M||Kollegger, T||Kosarzewski, LK||Kraishan, AF||Krauth, L||Kravtsov, P||Krueger, K||Kulathunga, N||Kumar, L||Kvapil, J||Kwasizur, JH||Lacey, R||Landgraf, JM||Landry, KD||Lauret, J||Lebedev, A||Lednicky, R||Lee, JH||Li, X||Li, W||Li, Y||Li, C||Lidrych, J||Lin, T||Lisa, MA||Liu, F||Liu, P||Liu, Y||Liu, H||Ljubicic, T||Llope, WJ||Lomnitz, M||Longacre, RS||Luo, X||Luo, S||Ma, GL||Ma, L||Ma, R||Ma, YG||Magdy, N||Majka, R||Mallick, D||Margetis, S||Markert, C||Matis, HS||Mayes, D||Meehan, K||Mei, JC||Miller, ZW||Minaev, NG||Mioduszewski, S||Mishra, D||Mizuno, S||Mohanty, B||Mondal, MM||Morozov, DA||Mustafa, MK||Nasim, Md||Nayak, TK||Nelson, JM||Nemes, DB||Nie, M||Nigmatkulov, G||Niida, T||Nogach, LV||Nonaka, T||Nurushev, SB||Odyniec, G||Ogawa, A||Oh, K||Okorokov, VA||Olvitt, D Jr||Page, BS||Pak, R||Pandit, Y||Panebratsev, Y||Pawlik, B||Pei, H||Perkins, C||Pluta, J||Poniatowska, K||Porter, J||Posik, M||Pruthi, NK||Przybycien, M||Putschke, J||Quintero, A||Ramachandran, S||Ray, RL||Reed, R||Rehbein, MJ||Ritter, HG||Roberts, JB||Rogachevskiy, OV||Romero, JL||Roth, JD||Ruan, L||Rusnak, J||Rusnakova, O||Sahoo, NR||Sahu, PK||Salur, S||Sandweiss, J||Saur, M||Schambach, J||Schmah, AM||Schmidke, WB||Schmitz, N||Schweid, BR||Seger, J||Sergeeva, M||Seto, R||Seyboth, P||Shah, N||Shahaliev, E||Shanmuganathan, PV||Shao, M||Shen, WQ||Shi, SS||Shi, Z||Shou, QY||Sichtermann, EP||Sikora, R||Simko, M||Singha, S||Skoby, MJ||Smirnov, N||Smirnov, D||Solyst, W||Sorensen, P||Spinka, HM||Srivastava, B||Stanislaus, TDS||Stewart, DJ||Strikhanov, M||Stringfellow, B||Suaide, AAP||Sugiura, T||Sumbera, M||Summa, B||Sun, Y||Sun, X||Sun, XM||Surrow, B||Svirida, DN||Tang, AH||Tang, Z||Taranenko, A||Tarnowsky, T||Tawfik, A||Thader, J||Thomas, JH||Timmins, AR||Tlusty, D||Todoroki, T||Tokarev, M||Trentalange, S||Tribble, RE||Tribedy, P||Tripathy, SK||Trzeciak, BA||Tsai, OD||Ullrich, T||Underwood, DG||Upsal, I||Van Buren, G||van Nieuwenhuizen, G||Vasiliev, AN||Videbaek, F||Vokal, S||Voloshin, SA||Vossen, A||Wang, G||Wang, Y||Wang, F||Webb, G||Webb, JC||Wen, L||Westfal, GD||Wieman, H||Wissink, SW||Witt, R||Wu, Y||Xiao, ZG||Xie, G||Xie, W||Xu, YF||Xu, J||Xu, QH||Xu, N||Xu, Z||Yang, S||Yang, Y||Yang, C||Yang, Q||Ye, Z||Yi, L||Yip, K||Yoo, I-K||Yu, N||Zbroszczyk, H||Zha, W||Zhang, Z||Zhang, J||Zhang, S||Zhang, Y||Zhang, XP||Zhang, JB||Zhao, J||Zhong, C||Zhou, L||Zhou, C||Zhu, X||Zhu, Z||Zyzak, M

publication date

  • May 2018