Related papers: Towards resolving the $_\Lambda^3$H lifetime puzzl…

Hypertriton lifetime

Over the last decade, conflicting values of the hypertriton ${}_{\Lambda}^3\mathrm{H}$ lifetime $\tau({}_{\Lambda}^3\mathrm{H})$ were extracted from relativistic heavy-ion (RHI) collision experiments, ranging from values compatible with the…

Nuclear Theory · Physics 2024-02-20 D. Gazda , A. Pérez-Obiol , A. Gal , E. Friedman

Lifetime of the hypertriton

Conflicting values of the hypertriton lifetime $\tau({}_\Lambda^3\mathrm{H})$ were derived in relativistic heavy ion (RHI) collision experiments over the last decade. A very recent ALICE Collaboration measurement is the only experiment…

Nuclear Theory · Physics 2022-12-01 D. Gazda , A. Pérez-Obiol , A. Gal , E. Friedman

Revisiting the hypertriton lifetime puzzle

Conflicting values of the hypertriton ($_{\Lambda}^{3}$H) lifetime were extracted in recent relativistic heavy-ion collision experiments. The ALICE Collaboration's reported $_{\Lambda}^{3}$H lifetime $\tau(_{\Lambda}^{3}$H) is compatible…

Nuclear Theory · Physics 2020-12-07 A. Pérez-Obiol , D. Gazda , E. Friedman , A. Gal

Recent progress on hypernuclei

Some of last year's progress made in hypernuclear physics is reviewed as follows: (i) resolving the $_{\Lambda}^5$He overbinding problem in single-$\Lambda$ hypernuclei [1]; (ii) arguing that the onset of binding double-$\Lambda$…

Nuclear Theory · Physics 2021-02-03 Avraham Gal

Measurement of the $\Lambda$ hyperon lifetime

A new, more precise measurement of the $\Lambda$ hyperon lifetime is performed using a large data sample of Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with ALICE. The $\Lambda$ and $\overline{\Lambda}$ hyperons are reconstructed…

Nuclear Experiment · Physics 2023-10-06 ALICE Collaboration

$^3_\Lambda\mathrm{H}$ and $^3_{\bar{\Lambda}}\mathrm{\bar{H}}$ lifetime measurement in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = $ 5.02 TeV via two-body decay

An improved value for the lifetime of the (anti-)hypertriton has been obtained using the data sample of Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = $ 5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been…

Nuclear Experiment · Physics 2019-10-25 ALICE Collaboration

Measurement of the lifetime and $\Lambda$ separation energy of $^{3}_{\Lambda}\mathrm H$

The most precise measurements to date of the $^{3}_{\Lambda}\mathrm H$ lifetime $\tau$ and $\Lambda$ separation energy ${\rm B}_{\Lambda}$ are obtained using the data sample of Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV…

Nuclear Experiment · Physics 2023-10-09 ALICE Collaboration

Measurement of hyper triton lifetime in Au + Au collisions at the Relativistic Heavy-Ion Collider

A precise measurement of the hypertriton lifetime is presented. In this letter, the mesonic decay modes $\mathrm{{^3_\Lambda}H \rightarrow ^3He + \pi^-}$ and $\mathrm{{^3_\Lambda}H \rightarrow d + p + \pi^-}$ are used to reconstruct the…

Nuclear Experiment · Physics 2018-05-30 The STAR Collaboration

Measurements of ${}^3_\Lambda \rm{H}$ and ${}^4_\Lambda \rm{H}$ Lifetimes and Yields in Au+Au Collisions in the High Baryon Density Region

We report precision measurements of hypernuclei ${}^3_\Lambda \rm{H}$ and ${}^4_\Lambda \rm{H}$ lifetimes obtained from Au+Au collisions at \snn = 3.0\,GeV and 7.2\,GeV collected by the STAR experiment at RHIC, and the first measurement of…

Nuclear Experiment · Physics 2022-05-20 STAR Collaboration , M. S. Abdallah , B. E. Aboona , J. Adam , L. Adamczyk , J. R. Adams , J. K. Adkins , G. Agakishiev , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , I. Alekseev , D. M. Anderson , A. Aparin , E. C. Aschenauer , M. U. Ashraf , F. G. Atetalla , A. Attri , G. S. Averichev , V. Bairathi , W. Baker , J. G. Ball Cap , K. Barish , A. Behera , R. Bellwied , P. Bhagat , A. Bhasin , J. Bielcik , J. Bielcikova , I. G. Bordyuzhin , J. D. Brandenburg , A. V. Brandin , I. Bunzarov , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , I. Chakaberia , P. Chaloupka , B. K. Chan , F-H. Chang , Z. Chang , N. Chankova-Bunzarova , A. Chatterjee , S. Chattopadhyay , D. Chen , J. Chen , J. H. Chen , X. Chen , Z. Chen , J. Cheng , M. Chevalier , S. Choudhury , W. Christie , X. Chu , H. J. Crawford , M. Csanád , M. Daugherity , T. G. Dedovich , I. M. Deppner , A. A. Derevschikov , A. Dhamija , L. Di Carlo , L. Didenko , P. Dixit , X. Dong , J. L. Drachenberg , E. Duckworth , J. C. Dunlop , N. Elsey , J. Engelage , G. Eppley , S. Esumi , O. Evdokimov , A. Ewigleben , O. Eyser , R. Fatemi , F. M. Fawzi , S. Fazio , P. Federic , J. Fedorisin , C. J. Feng , Y. Feng , P. Filip , E. Finch , Y. Fisyak , A. Francisco , C. Fu , L. Fulek , C. A. Gagliardi , T. Galatyuk , F. Geurts , N. Ghimire , A. Gibson , K. Gopal , X. Gou , D. Grosnick , A. Gupta , W. Guryn , A. I. Hamad , A. Hamed , Y. Han , S. Harabasz , M. D. Harasty , J. W. Harris , H. Harrison , S. He , W. He , X. H. He , Y. He , S. Heppelmann , S. Heppelmann , N. Herrmann , E. Hoffman , L. Holub , Y. Hu , H. Huang , H. Z. Huang , S. L. Huang , T. Huang , X. Huang , Y. Huang , T. J. Humanic , G. Igo , D. Isenhower , W. W. Jacobs , C. Jena , A. Jentsch , Y. Ji , J. Jia , K. Jiang , X. Ju , E. G. Judd , S. Kabana , M. L. Kabir , S. Kagamaster , D. Kalinkin , K. Kang , D. Kapukchyan , K. Kauder , H. W. Ke , D. Keane , A. Kechechyan , M. Kelsey , Y. V. Khyzhniak , D. P. Kikoła , C. Kim , B. Kimelman , D. Kincses , I. Kisel , A. Kiselev , A. G. Knospe , H. S. Ko , L. Kochenda , L. K. Kosarzewski , L. Kramarik , P. Kravtsov , L. Kumar , S. Kumar , R. Kunnawalkam Elayavalli , J. H. Kwasizur , R. Lacey , S. Lan , J. M. Landgraf , J. Lauret , A. Lebedev , R. Lednicky , J. H. Lee , Y. H. Leung , N. Lewis , C. Li , C. Li , W. Li , X. Li , Y. Li , X. Liang , Y. Liang , R. Licenik , T. Lin , Y. Lin , M. A. Lisa , F. Liu , H. Liu , H. Liu , P. Liu , T. Liu , X. Liu , Y. Liu , Z. Liu , T. Ljubicic , W. J. Llope , R. S. Longacre , E. Loyd , N. S. Lukow , X. F. Luo , L. Ma , R. Ma , Y. G. Ma , N. Magdy , D. Mallick , S. Margetis , C. Markert , H. S. Matis , J. A. Mazer , N. G. Minaev , S. Mioduszewski , B. Mohanty , M. M. Mondal , I. Mooney , D. A. Morozov , A. Mukherjee , M. Nagy , J. D. Nam , Md. Nasim , K. Nayak , D. Neff , J. M. Nelson , D. B. Nemes , M. Nie , G. Nigmatkulov , T. Niida , R. Nishitani , L. V. Nogach , T. Nonaka , A. S. Nunes , G. Odyniec , A. Ogawa , S. Oh , V. A. Okorokov , B. S. Page , R. Pak , J. Pan , A. Pandav , A. K. Pandey , Y. Panebratsev , P. Parfenov , B. Pawlik , D. Pawlowska , C. Perkins , L. Pinsky , R. L. Pintér , J. Pluta , B. R. Pokhrel , G. Ponimatkin , J. Porter , M. Posik , V. Prozorova , N. K. Pruthi , M. Przybycien , J. Putschke , H. Qiu , A. Quintero , C. Racz , S. K. Radhakrishnan , N. Raha , R. L. Ray , R. Reed , H. G. Ritter , M. Robotkova , O. V. Rogachevskiy , J. L. Romero , D. Roy , L. Ruan , J. Rusnak , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , J. Sandweiss , S. Sato , W. B. Schmidke , N. Schmitz , B. R. Schweid , F. Seck , J. Seger , M. Sergeeva , R. Seto , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , M. Shao , T. Shao , A. I. Sheikh , D. Y. Shen , S. S. Shi , Y. Shi , Q. Y. Shou , E. P. Sichtermann , R. Sikora , M. Simko , J. Singh , S. Singha , M. J. Skoby , N. Smirnov , Y. Söhngen , W. Solyst , P. Sorensen , H. M. Spinka , B. Srivastava , T. D. S. Stanislaus , M. Stefaniak , D. J. Stewart , M. Strikhanov , B. Stringfellow , A. A. P. Suaide , M. Sumbera , B. Summa , X. M. Sun , X. Sun , Y. Sun , Y. Sun , B. Surrow , D. N. Svirida , Z. W. Sweger , P. Szymanski , A. H. Tang , Z. Tang , A. Taranenko , T. Tarnowsky , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , M. Tokarev , C. A. Tomkiel , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , T. Truhlar , B. A. Trzeciak , O. D. Tsai , Z. Tu , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , J. Vanek , A. N. Vasiliev , I. Vassiliev , V. Verkest , F. Videbæk , S. Vokal , S. A. Voloshin , F. Wang , G. Wang , J. S. Wang , P. Wang , X. Wang , Y. Wang , Y. Wang , Z. Wang , J. C. Webb , P. C. Weidenkaff , L. Wen , G. D. Westfall , H. Wieman , S. W. Wissink , R. Witt , J. Wu , J. Wu , Y. Wu , B. Xi , Z. G. Xiao , G. Xie , W. Xie , H. Xu , N. Xu , Q. H. Xu , Y. Xu , Z. Xu , Z. Xu , G. Yan , C. Yang , Q. Yang , S. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , K. Yip , Y. Yu , H. Zbroszczyk , W. Zha , C. Zhang , D. Zhang , J. Zhang , S. Zhang , S. Zhang , X. P. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Z. J. Zhang , Z. Zhang , Z. Zhang , J. Zhao , C. Zhou , Y. Zhou , X. Zhu , M. Zurek , M. Zyzak

The lifetime of the Lambda hyperon bound in hypernuclei produced by p+U collisions

The nonmesonic decay of the Lambda hyperon has been investigated by observation of delayed fission from heavy hypernuclei produced in proton-U collisions at Tp = 1.9 GeV. The lifetime of heavy hypernuclei with masses A approximately 220…

Nuclear Experiment · Physics 2009-03-20 P. Kulessa , W. Cassing , L. Jarczyk , B. Kamys , H. Ohm , K. Pysz , Z. Rudy , H. Stroeher

Precise lifetime measurement of $^4_\Lambda$H hypernucleus using in-flight $^4$He$(K^-, \pi^0)^4_\Lambda$H reaction

We present a new measurement of the $^4_\Lambda$H hypernuclear lifetime using in-flight $K^-$ + $^4$He $\rightarrow$ $^4_\Lambda$H + $\pi^0$ reaction at the J-PARC hadron facility. We demonstrate, for the first time, the effective selection…

Nuclear Experiment · Physics 2023-08-29 T. Akaishi , H. Asano , X. Chen , A. Clozza , C. Curceanu , R. Del Grande , C. Guaraldo , C. Han , T. Hashimoto , M. Iliescu , K. Inoue , S. Ishimoto , K. Itahashi , M. Iwasaki , Y. Ma , M. Miliucci , R. Murayama , H. Noumi , H. Ohnishi , S. Okada , H. Outa , K. Piscicchia , A. Sakaguchi , F. Sakuma , M. Sato , A. Scordo , K. Shirotori , D. Sirghi , F. Sirghi , S. Suzuki , K. Tanida , T. Toda , M. Tokuda , T. Yamaga , X. Yuan , P. Zhang , Y. Zhang , H. Zhang

Nonmesonic decay of the Lambda hyperon in nuclear matter - implications on the weak Lambda-N interaction

The lifetime of the Lambda hyperon in heavy hypernuclei as measured by the COSY-13 Collaboration in proton - Au, Bi and U collisions has been analysed to yield tau(Lambda) = (145 +- 11) ps. This value for tau(Lambda) is compatible with the…

Nuclear Experiment · Physics 2009-03-20 W. Cassing , L. Jarczyk , B. Kamys , P. Kulessa , H. Ohm , K. Pysz , Z. Rudy , O. W. B. Schult , H. Stroeher

Formation and lifetime measurements of light hypernuclei in Ag+Ag collisions at $\mathrm{\sqrt{s_{NN}}}$ = 2.55 GeV

We present the first observation of $\mathrm{^{3}_\Lambda H}$ and $\mathrm{^{4}_\Lambda H}$ in Ag+Ag collisions at $\mathrm{\sqrt{s_{NN}}}$ = 2.55 GeV, emitted around mid-rapidity. The hypernuclei are reconstructed via their two-body decay…

Nuclear Experiment · Physics 2025-12-16 R. Abou Yassine , J. Adamczewski-Musch , C. Asal , M. Becker , A. Belounnas , A. Blanco , C. Blume , L. Chlad , P. Chudoba , I. Ciepał , J. Dreyer , W. A. Esmail , L. Fabbietti , H. Floersheimer , J. Förtsch , P. Fonte , J. Friese , I. Fröhlich , T. Galatyuk , R. Greifenhagen , M. Grunwald , M. Gumberidze , S. Harabasz , T. Heinz , C. Höhne , F. Hojeij , R. Holzmann , H. Huck , M. Idzik , B. Kämpfer , K-H. Kampert , B. Kardan , V. Kedych , S. Kim , I. Koenig , W. Koenig , M. Kohls , J. Kolas , G. Kornakov , R. Kotte , I. Kres , W. Krueger , A. Kugler , R. Lalik , S. Lebedev , S. Linev , F. Linz , L. Lopes , M. Lorenz , A. Malige , J. Markert , T. Matulewicz , S. Maurus , V. Metag , J. Michel , A. Molenda , C. Müntz , M. Nabroth , L. Naumann , K. Nowakowski , A. Opíchal , J. Orliński , J. -H. Otto , M. Parschau , C. Pauly , D. Pawlowska-Szymanska , V. Pechenov , O. Pechenova , D. Pfeifer , K. Piasecki , J. Pietraszko , T. Povar , K. Prościński , A. Prozorov , W. Przygoda , K. Pysz , B. Ramstein , N. Rathod , J. Ritman , A. Rost , A. Rustamov , P. Salabura , J. Saraiva , K. Scharmann , N. Schild , E. Schwab , F. Scozzi , F. Seck , I. Selyuzhenkov , U. Singh , L. Skorpil , J. Smyrski , S. Spies , A. Sreejith , H. Ströbele , J. Stroth , K. Sumara , O. Svoboda , M. Szala , P. Tlusty , M. Traxler , S. Treliński , I. C. Udrea , F. Ulrich-Pur , C. Ungethum , V. Wagner , A. A. Weber , C. Wendisch , J. Wirth , A. Władyszewska , H. P. Zbroszczyk , E. Zherebtsova , M. Zieliński , P. Zumbruch

Understanding the shortened lifetime of \boldmath$\isotope[3][\Lambda]{H}$\unboldmath

The lifetime of the hypertriton $\isotope[3][\Lambda]{H}$ has been recently measured as significantly shorter than that of the free $\Lambda$. We present an explanation based on a change of the intrinsic hyperon decay due to the nuclear…

Nuclear Theory · Physics 2016-04-18 Jean-Marc Richard , Qian Wang , Qiang Zhao

Measurement of the Lambda_b Lifetime in Lambda_b -> Lambda_c+ pi- Decays in p-pbar Collisions at sqrt(s) = 1.96 TeV

We report a measurement of the lifetime of the Lambda_b baryon in decays to the Lambda_C+ pi- final state in a sample corresponding to 1.1 fb^-1 collected in p-pbar collisions at sqrt(s) = 1.96 TeV by the CDF II detector at the Tevatron…

High Energy Physics - Experiment · Physics 2010-05-12 The CDF Collaboration , T. Aaltonen

Pi-mesonic decay of the hypertriton

The pi-mesonic decay of the hypertriton is calculated based on a hypertriton wavefunction and 3N scattering states, which are rigorous solutions of 3-body Faddeev equations using realistic NN and hyperon-nucleon interactions. The total…

Nuclear Theory · Physics 2008-11-26 H. Kamada , J. Golak , K. Miyagawa , H. Witala , W. Gloeckle

Direct Measurements of the Lifetime of Heavy Hypernuclei

The lifetime of a Lambda particle embedded in a nucleus (hypernucleus) decreases from that of free Lambda decay due to the opening of the Lambda N to NN weak decay channel. However, it is generally believed that the lifetime of a…

Nuclear Experiment · Physics 2013-01-17 X. Qiu , L. Tang , A. Margaryan , P. Achenbach , A. Ahmidouch , I. Albayrak , D. Androic , A. Asaturyan , R. Asaturyan , O. Ates , R. Badui , P. Baturin , W. Boeglin , J. Bono , E. Brash , P. Carter , C. Chen , X. Chen , A. Chiba , E. Christy , M. M. Dalton , S. Danagoulian , R. De Leo , D. Doi , M. Elaasar , R. Ent , H. Fenker , Y. Fujii , M. Furic , M. Gabrielyan , L. Gan , F. Garibaldi , D. Gaskell , A. Gasparian , T. Gogami , O. Hashimoto , T. Horn , B. Hu , E. V. Hungerford , M. Jones , H. Kanda , M. Kaneta , M. Kawai , D. Kawama , H. Khanal , M. Kohl , A. Liyanage , W. Luo , K. Maeda , P. Markowitz , T. Maruta , A. Matsumura , V. Maxwell , A. Mkrtchyan , H. Mkrtchyan , S. Nagao , S. N. Nakamura , A. Narayan , C. Neville , G. Niculescu , M. I. Niculescu , A. Nunez , Nuruzzaman , Y. Okayasu , T. Petkovic , J. Pochodzalla , J. Reinhold , V. M. Rodriguez , C. Samanta , B. Sawatzky , T. Seva , A. Shichijo , V. Tadevosyan , N. Taniya , K. Tsukada , M. Veilleux , W. Vulcan , F. R. Wesselmann , S. A. Wood , L. Ya , T. Yamamoto , Z. Ye , K. Yokota , L. Yuan , S. Zhamkochyan , L. Zhu

Measurement of the Lambda_b Lifetime in Lambda_b --> J/psi Lambda0 in p-pbar Collisions at sqrt(s)=1.96 TeV

We report a measurement of the Lambda_b lifetime in the exclusive decay Lambda_b --> J/psi Lambda0 in p-pbar collisions at sqrt(s) = 1.96 TeV using an integrated luminosity of 1.0 fb^{-1} of data collected by the CDF II detector at the…

High Energy Physics - Experiment · Physics 2010-05-12 CDF Collaboration , A. Abulencia

Measurements of the lightest hypernucleus ($\mathrm{^3_{\Lambda}H}$): progress and perspective

The hyperon-nucleon ($Y$-$N$) interaction is important for the description of the equation-of-state of high baryon density matter. Hypernuclei, the cluster object of nucleons and hyperons, serve as cornerstones of a full understanding of…

Nuclear Experiment · Physics 2023-11-17 Jinhui Chen , Xin Dong , Yu-Gang Ma , Zhangbu Xu

Pionic Final State Interactions and the Hypertriton Lifetime

We analyze the contribution of pionic final state interactions (FSI) in the weak decay of the hypertriton. Focusing on the $^3$He channel, we find a contribution of the pionic FSI of the order of $18\%$. Assuming a fixed value for the…

Nuclear Theory · Physics 2023-09-25 Fabian Hildenbrand , Hans-Werner Hammer