Nuclear Experiment

Evidence of a dibaryon spectrum in coherent $\pi^0\pi^0 d$ photoproduction at forward deuteron angles

The coherent reaction, $\gamma d \rightarrow \pi^0\pi^0 d$ was studied with the BGOOD experiment at ELSA from threshold to a centre-of-mass energy of 2850\,MeV. A full kinematic reconstruction was made, with final state deuterons identified…

Nuclear Experiment · Physics 2024-10-30 T. C. Jude , S. Alef , R. Beck , A. Braghieri , P. L. Cole , D. Elsner , R. Di Salvo , A. Fantini , O. Freyermuth , F. Frommberger , F. Ghio , A. Gridnev , K. Kohl , N. Kozlenko , A. Lapik , P. Levi Sandri , V. Lisin , G. Mandaglio , D. Moricciani , V. Nedorezov , D. Novinsky , P. Pedroni , A. Polonskiy , B. -E. Reitz , M. Romaniuk , G. Scheluchin , H. Schmieden , A. Stuglev , V. Sumachev , V. Tarakanov

Measurement of the impact-parameter dependent azimuthal anisotropy in coherent $\rho^0$ photoproduction in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

This Letter presents the first measurement of the impact-parameter dependent angular anisotropy in the decay of coherently photoproduced $\rho^0$ mesons. The $\rho^0$ mesons are reconstructed through their decay into pion pairs. The…

Nuclear Experiment · Physics 2024-10-29 ALICE Collaboration

Nuclear charge radii of germanium isotopes around $N$ = 40

Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. Nuclear charge…

Nuclear Experiment · Physics 2024-10-29 S. J. Wang , A. Kanellakopoulos , X. F. Yang , S. W. Bai , J. Billowes , M. L. Bissell , K. Blaum , B. Cheal , C. S. Devlin , R. F. Garcia Ruiz , J. Z. Han , H. Heylen , S. Kaufmann , K. Konig , A. Koszorus , S. Lechner , S. Malbrunot-Ettenauer , W. Nazarewicz , R. Neugart , G. Neyens , W. Nortershauser , T. Ratajczyk , P. -G. Reinhard , L. V. Rodrıguez , S. Sels , L. Xie , Z. Y. Xu , D. T. Yordanov , Y. M. Yu

Azimuthal anisotropy of jet particles in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV down to transverse momentum ($p_{\rm T}$) of 0.5 GeV/$c$…

Nuclear Experiment · Physics 2024-10-29 ALICE Collaboration

First Experimental Test of the Ratio Method

The ratio is a new reaction observable suggested to extract accurately structure information on halo nuclei. It corresponds to the ratio of differential cross sections for scattering and breakup, which is predicted to remove the uncertainty…

Nuclear Experiment · Physics 2024-10-28 S. Ota , P. Capel , G. Christian , V. Durant , K. Hagel , E. Harris , R. C. Johnson , Z. Luo , F. M. Nunes , M. Roosa , A. Saastamoinen , D. P. Scriven

Measurement of the mass-changing, charge-changing and production cross sections of $^{11}$C, $^{11}$B and $^{10}$B nuclei in $^{12}$C+p interactions at 13.5 GeV/c per nucleon

We report results from a 2018 pilot run to study the feasibility of nuclear fragmentation measurements with the NA61/SHINE experiment at the CERN SPS. These results are important for the interpretation of the production of light secondary…

Nuclear Experiment · Physics 2024-10-25 SHINE Collaboration

sPHENIX Highlights: First Results from sPHENIX at RHIC

First results from the sPHENIX experiment on the $\pi^0$ ${\rm v_{_{2}}}$ and $dE_T/d\eta$ in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV using detector commissioning data during the RHIC 2023 Run are presented. These results are shown…

Nuclear Experiment · Physics 2024-10-24 Rachid Nouicer

Nuclear structure of dripline nuclei elucidated through precision mass measurements of $^{23}$Si, $^{26}$P, $^{27,28}$S, and $^{31}$Ar

Using the B$\rho$-defined isochronous mass spectrometry technique, we report the first determination of the $^{23}$Si, $^{26}$P, $^{27}$S, and $^{31}$Ar masses and improve the precision of the $^{28}$S mass by a factor of 11. Our…

Nuclear Experiment · Physics 2024-10-24 Y. Yu , Y. M. Xing , Y. H. Zhang , M. Wang , X. H. Zhou , J. G. Li , H. H. Li , Q. Yuan , Y. F. Niu , Y. N. Huang , J. Geng , J. Y. Guo , J. W. Chen , J. C. Pei , F. R. Xu , Yu. A. Litvinov , K. Blaum , G. de Angelis , I. Tanihata , T. Yamaguchi , X. Zhou , H. S. Xu , Z. Y. Chen , R. J. Chen , H. Y. Deng , C. Y. Fu , W. W. Ge , W. J. Huang , H. Y. Jiao , Y. F. Luo , H. F. Li , T. Liao , J. Y. Shi , M. Si , M. Z. Sun , P. Shuai , X. L. Tu , Q. Wang , X. Xu , X. L. Yan , Y. J. Yuan , M. Zhang

Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $\gamma\gamma$-coincidence technique

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from…

Nuclear Experiment · Physics 2024-10-23 G. Pasqualato , S. Ansari , J. S. Heines , V. Modamio , A. Görgen , W. Korten , J. Ljungvall , E. Clément , J. Dudouet , A. Lemasson , T. R. Rodríguez , J. M. Allmond , T. Arici , K. S. Beckmann , A. M. Bruce , D. Doherty , A. Esmaylzadeh , E. R. Gamba , L. Gerhard , J. Gerl , G. Georgiev , D. P. Ivanova , J. Jolie , Y. -H. Kim , L. Knafla , A. Korichi , P. Koseoglou , M. Labiche , S. Lalkovski , T. Lauritsen , H. -J. Li , L. G. Pedersen , S. Pietri , D. Ralet , J. M. Regis , M. Rudigier , S. Saha , E. Sahin , S. Siem , P. Singh , P. -A. öderström , C. Theisen , T. Tornyi , M. Vandebrouck , W. Witt , M. Zielińska , D. Barrientos , P. Bednarczyk , G. Benzoni , A. J. Boston , H. C. Boston , A. Bracco , B Cederwall , M. Ciemala , G. de France , C. Domingo-Pardo , J. Eberth , A. Gadea , V. González , A. Gottardo , L. J. Harkness-Brennan , H. Hess , D. S. Judson , A. Jungclaus , S. M. Lenzi , S. Leoni , R. Menegazzo , D. Mengoni , C. Michelagnoli , D. R. Napoli , J. Nyberg , Zs. Podolyak , A. Pullia , F. Recchia , P. Reiter , K. Rezynkina , M. D. Salsac , E. Sanchis , M. Şenyiğit , M. Siciliano , J. Simpson , D. Sohler , O. Stezowski , J. J. Valiente-Dobón , D. Verney

Correlations of event activity with hard and soft processes in $p$ + Au collisions at $\sqrt{s_\mathrm{NN}}$ = 200 GeV at STAR

With the STAR experiment at the BNL Relativisic Heavy Ion Collider, we characterize $\sqrt{s_\mathrm{NN}}$ = 200 GeV p+Au collisions by event activity (EA) measured within the pseudorapidity range $eta$ $in$ [-5, -3.4] in the Au-going…

Nuclear Experiment · Physics 2024-10-23 STAR Collaboration , M. I. Abdulhamid , B. E. Aboona , J. Adam , L. Adamczyk , J. R. Adams , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , E. C. Aschenauer , S. Aslam , J. Atchison , V. Bairathi , J. G. Ball Cap , K. Barish , R. Bellwied , P. Bhagat , A. Bhasin , S. Bhatta , S. R. Bhosale , J. Bielcik , J. Bielcikova , J. D. Brandenburg , C. Broodo , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , J. Ceska , I. Chakaberia , P. Chaloupka , B. K. Chan , Z. Chang , A. Chatterjee , D. Chen , J. Chen , J. H. Chen , Z. Chen , J. Cheng , Y. Cheng , W. Christie , X. Chu , H. J. Crawford , M. Csanád , G. Dale-Gau , A. Das , I. M. Deppner , A. Dhamija , P. Dixit , X. Dong , J. L. Drachenberg , E. Duckworth , J. C. Dunlop , J. Engelage , G. Eppley , S. Esumi , O. Evdokimov , O. Eyser , R. Fatemi , S. Fazio , C. J. Feng , Y. Feng , E. Finch , Y. Fisyak , F. A. Flor , C. Fu , C. A. Gagliardi , T. Galatyuk , T. Gao , F. Geurts , N. Ghimire , A. Gibson , K. Gopal , X. Gou , D. Grosnick , A. Gupta , W. Guryn , A. Hamed , Y. Han , S. Harabasz , M. D. Harasty , J. W. Harris , H. Harrison-Smith , W. He , X. H. He , Y. He , N. Herrmann , L. Holub , C. Hu , Q. Hu , Y. Hu , H. Huang , H. Z. Huang , S. L. Huang , T. Huang , Y. Huang , Y. Huang , T. J. Humanic , M. Isshiki , W. W. Jacobs , A. Jalotra , C. Jena , A. Jentsch , Y. Ji , J. Jia , C. Jin , X. Ju , E. G. Judd , S. Kabana , D. Kalinkin , K. Kang , D. Kapukchyan , K. Kauder , D. Keane , A. Khanal , Y. V. Khyzhniak , D. P. Kikoła , D. Kincses , I. Kisel , A. Kiselev , A. G. Knospe , H. S. Ko , J. Kołaś , L. K. Kosarzewski , L. Kumar , M. C. Labonte , R. Lacey , J. M. Landgraf , J. Lauret , A. Lebedev , J. H. Lee , Y. H. Leung , C. Li , D. Li , H-S. Li , H. Li , W. Li , X. Li , Y. Li , Y. Li , Z. Li , X. Liang , Y. Liang , R. Licenik , T. Lin , Y. Lin , M. A. Lisa , C. Liu , G. Liu , H. Liu , L. Liu , T. Liu , X. Liu , Y. Liu , Z. Liu , T. Ljubicic , O. Lomicky , R. S. Longacre , E. M. Loyd , T. Lu , J. Luo , X. F. Luo , L. Ma , R. Ma , Y. G. Ma , N. Magdy , D. Mallick , R. Manikandhan , S. Margetis , C. Markert , O. Matonoha , G. McNamara , O. Mezhanska , K. Mi , S. Mioduszewski , B. Mohanty , B. Mondal , M. M. Mondal , I. Mooney , J. Mrazkova , M. I. Nagy , A. S. Nain , J. D. Nam , M. Nasim , D. Neff , J. M. Nelson , M. Nie , G. Nigmatkulov , T. Niida , T. Nonaka , G. Odyniec , A. Ogawa , S. Oh , K. Okubo , B. S. Page , S. Pal , A. Pandav , A. Panday , A. K. Pandey , T. Pani , A. Paul , B. Pawlik , D. Pawlowska , C. Perkins , J. Pluta , B. R. Pokhrel , M. Posik , T. L. Protzman , V. Prozorova , N. K. Pruthi , M. Przybycien , J. Putschke , Z. Qin , H. Qiu , C. Racz , S. K. Radhakrishnan , A. Rana , R. L. Ray , R. Reed , C. W. Robertson , M. Robotkova , M. A. Rosales Aguilar , D. Roy , P. Roy Chowdhury , L. Ruan , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , S. Sato , B. C. Schaefer , W. B. Schmidke , N. Schmitz , F-J. Seck , J. Seger , R. Seto , P. Seyboth , N. Shah , P. V. Shanmuganathan , T. Shao , M. Sharma , N. Sharma , R. Sharma , S. R. Sharma , A. I. Sheikh , D. Shen , D. Y. Shen , K. Shen , S. S. Shi , Y. Shi , Q. Y. Shou , F. Si , J. Singh , S. Singha , P. Sinha , M. J. Skoby , N. Smirnov , Y. Söhngen , Y. Song , B. Srivastava , T. D. S. Stanislaus , M. Stefaniak , D. J. Stewart , Y. Su , M. Sumbera , C. Sun , X. Sun , Y. Sun , Y. Sun , B. Surrow , M. Svoboda , Z. W. Sweger , A. C. Tamis , A. H. Tang , Z. Tang , T. Tarnowsky , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , S. Trentalange , P. Tribedy , S. K. Tripathy , T. Truhlar , B. A. Trzeciak , O. D. Tsai , C. Y. Tsang , Z. Tu , J. Tyler , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , J. Vanek , I. Vassiliev , V. Verkest , F. Videbæk , S. A. Voloshin , G. Wang , J. S. Wang , J. Wang , K. Wang , X. Wang , Y. Wang , Y. Wang , Y. Wang , Z. Wang , J. C. Webb , P. C. Weidenkaff , G. D. Westfall , D. Wielanek , H. Wieman , G. Wilks , S. W. Wissink , R. Witt , J. Wu , J. Wu , X. Wu , X. Wu , B. Xi , Z. G. Xiao , G. Xie , W. Xie , H. Xu , N. Xu , Q. H. Xu , Y. Xu , Y. Xu , Z. Xu , Z. Xu , G. Yan , Z. Yan , C. Yang , Q. Yang , S. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , Y. Yu , H. Zbroszczyk , W. Zha , C. Zhang , D. Zhang , J. Zhang , S. Zhang , W. Zhang , X. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Z. J. Zhang , Z. Zhang , Z. Zhang , F. Zhao , J. Zhao , M. Zhao , S. Zhou , Y. Zhou , X. Zhu , M. Zurek , M. Zyzak

Enhanced $S$-factor for the $^{14}$N$(p,\gamma)^{15}$O reaction and its impact on the solar composition problem

The solar composition problem has puzzled astrophysicists for more than 20 years. Recent measurements of carbon-nitrogen-oxygen (CNO) neutrinos by the Borexino experiment show a $\sim2\sigma$ tension with the "low-metallicity"…

Nuclear Experiment · Physics 2024-10-22 X. Chen , J. Su , Y. P. Shen , L. Y. Zhang , J. J. He , S. Z. Chen , S. Wang , Z. L. Shen , S. Lin , L. Y. Song , H. Zhang , L. H. Wang , X. Z. Jiang , L. Wang , Y. T. Huang , Z. W. Qin , F. C. Liu , Y. D. Sheng , Y. J. Chen , Y. L. Lu , X. Y. Li , J. Y. Dong , Y. C. Jiang , Y. Q. Zhang , Y. Zhang , J. W. Tian , D. Xiao , Y. Zhang , Z. M. Li , X. C. Han , J. J. Wei , H. Li , Z. An , W. P. Lin , B. Liao , H. N. Liu , F. S. Zhang , M. L. Qiu , C. Xu , S. L. Jin , F. Lu , J. F. Chen , W. Nan , Y. B. Wang , Z. H. Li , B. Guo , Y. Q. Gu , W. P. Liu

Probing the N=104 midshell region for the r process via precision mass spectrometry of neutron-rich rare-earth isotopes with the JYFLTRAP double Penning trap

We have performed high-precision mass measurements of neutron-rich rare-earth Tb, Dy and Ho isotopes using the Phase-Imaging Ion-Cyclotron-Resonance technique at the JYFLTRAP double Penning trap. We report on the first experimentally…

Nuclear Experiment · Physics 2024-10-22 A. Jaries , S. Nikas , A. Kankainen , T. Eronen , O. Beliuskina , T. Dickel , M. Flayol , Z. Ge , M. Hukkanen , M. Mougeot , I. Pohjalainen , A. Raggio , M. Reponen , J. Ruotsalainen , M. Stryjczyk , V. Virtanen

Neutron-proton pairing in the unstable N=Z nuclei of the f-shell through two-nucleon transfer reactions

Pair transfer is a unique tool to study pairing correlations in nuclei. Neutron-proton pairing is investigated in the N=Z nuclei of the f-shell, through the reaction (p,3He) in inverse kinematics, that allows to populate at the same time…

Nuclear Experiment · Physics 2024-10-21 M. Assié , H. Jacob , Y. Blumenfeld , V. Girard-Alcindor

New detection systems for an enhanced sensitivity in key stellar (n,$\gamma$) measurements

Neutron capture cross-section measurements are fundamental in the study of astrophysical phenomena, such as the slow neutron capture (s-) process of nucleosynthesis operating in red-giant and massive stars. However, neutron capture…

Nuclear Experiment · Physics 2024-10-18 J. Lerendegui-Marco , V. Babiano-Suárez , J. Balibrea-Correa , C. Domingo-Pardo , I. Ladarescu , A. Tarifeño-Saldivia , V. Alcayne , D. Cano-Ott , E. González-Romero , T. Martínez , E. Mendoza , C. Guerrero , F. Calviño , A. Casanovas , U. Köster , N. M. Chiera , R. Dressler , E. A. Maugeri , D. Schumann , the n_TOF Collaboration

The EMC Effect of Tritium and Helium-3 from the JLab MARATHON Experiment

Measurements of the EMC effect in the tritium and helium-3 mirror nuclei are reported. The data were obtained by the MARATHON Jefferson Lab experiment, which performed deep inelastic electron scattering from deuterium and the three-body…

Nuclear Experiment · Physics 2024-10-17 D. Abrams , H. Albataineh , B. S. Aljawrneh , S. Alsalmi , D. Androic , K. Aniol , W. Armstrong , J. Arrington , H. Atac , T. Averett , C. Ayerbe Gayoso , X. Bai , J. Bane , S. Barcus , A. Beck , V. Bellini , H. Bhatt , D. Bhetuwal , D. Biswas , D. Blyth , W. Boeglin , D. Bulumulla , J. Butler , A. Camsonne , M. Carmignotto , J. Castellanos , J. -P. Chen , I. C. Cloët , E. O. Cohen , S. Covrig , K. Craycraft , R. Cruz-Torres , B. Dongwi , B. Duran , D. Dutta , N. Fomin , E. Fuchey , C. Gal , T. N. Gautam , S. Gilad , K. Gnanvo , T. Gogami , J. Gomez , C. Gu , A. Habarakada , T. Hague , J. -O. Hansen , M. Hattawy , F. Hauenstein , D. W. Higinbotham , R. J. Holt , E. W. Hughes , C. Hyde , H. Ibrahim , S. Jian , S. Joosten , A. Karki , B. Karki , A. T. Katramatou , C. Keith , C. Keppel , M. Khachatryan , V. Khachatryan , A. Khanal , A. Kievsky , D. King , P. M. King , I. Korover , S. A. Kulagin , K. S. Kumar , T. Kutz , N. Lashley-Colthirst , S. Li , W. Li , H. Liu , S. Liuti , N. Liyanage , P. Markowitz , R. E. McClellan , D. Meekins , S. Mey-Tal Beck , Z. -E. Meziani , R. Michaels , M. Mihovilovic , V. Nelyubin , D. Nguyen , Nuruzzaman , M. Nycz , R. Obrecht , M. Olson , V. F. Owen , E. Pace , B. Pandey , V. Pandey , M. Paolone , A. Papadopoulou , S. Park , S. Paul , G. G. Petratos , R. Petti , E. Piasetzky , R. Pomatsalyuk , S. Premathilake , A. J. R. Puckett , V. Punjabi , R. D. Ransome , M. N. H. Rashad , P. E. Reimer , S. Riordan , J. Roche , G. Salmè , N. Santiesteban , B. Sawatzky , S. Scopetta , A. Schmidt , B. Schmookler , J. Segal , E. P. Segarra , A. Shahinyan , S. Širca , N. Sparveris , T. Su , R. Suleiman , H. Szumila-Vance , A. S. Tadepalli , L. Tang , W. Tireman , F. Tortorici , G. M. Urciuoli , B. Wojtsekhowski , S. Wood , Z. H. Ye , Z. Y. Ye , J. Zhang

Charge radii of $^{11-16}$C, $^{13-17}$N and $^{15-18}$O determined from their charge-changing cross-sections and the mirror-difference charge radii

Charge-changing cross-sections of $^{11-16}$C, $^{13-17}$N and $^{15-18}$O on a carbon target have been determined at energies around 300 MeV/nucleon. A nucleon separation energy-dependent correction factor has been introduced to the…

Nuclear Experiment · Physics 2024-10-17 J. W. Zhao , B. -H. Sun , I. Tanihata , J. Y. Xu , K. Y. Zhang , A. Prochazka , L. H. Zhu , S. Terashima , J. Meng , L. C. He , C. Y. Liu , G. S. Li , C. G. Lu , W. J. Lin , W. P. Lin , Z. Liu , P. P Ren , Z. Y. Sun , F. Wang , J. Wang , M. Wang , S. T. Wang , X. L. Wei , X. D. Xu , J. C. Zhang , M. X Zhang , X. H. Zhang

Cluster production in Xe + Sn collisions between 65-150 MeV/nucleon

Characterization of the participant-zone (PZ) in the $^{129,124}$Xe + $^{112,124}$Sn reaction at the energy range 65-150 MeV/nucleon reveals copious cluster production. A detailed study of the chemical composition as a function of the…

Nuclear Experiment · Physics 2024-10-16 T. Genard , A. Chbihi , C. Ciampi , D. Durand , Q. Fable , A. LeFevre , S. Mallik

Optical model potentials for deuteron scattering off $^{24}$Mg, $^{28}$Si, $^{58}$Ni, $^{90}$Zr, $^{116}$Sn, and $^{208}$Pb at $\sim$100 MeV/nucleon

Angular distributions of the elastic and inelastic deuteron-nucleus scattering off $^{24}$Mg, $^{28}$Si, $^{58}$Ni, $^{90}$Zr, $^{116}$Sn, and $^{208}$Pb have been measured at a beam energy of 98 MeV/nucleon, with the goal of constraining…

Nuclear Experiment · Physics 2024-10-16 D. Patel , D. C. Cuong , K. B. Howard , U. Garg , Dao T. Khoa , H. Akimune , G. P. A. Berg , M. Fujiwara , M. N. Harakeh , M. Itoh , C. Iwamoto , T. Kawabata , K. Kawase , J. T. Matta , T. Murakami , M. Yosoi

Recent $J/\psi$ measurements at the PHENIX experiment

Quarkonium is an ideal probe to explore the properties of quantum chromodynamics (QCD). Unlike Large Hadron Collider (LHC) measurements, quarkonium production at the Relativistic Heavy Ion Collider (RHIC) has different production…

Nuclear Experiment · Physics 2024-10-15 Xuan Li

Study of $^{7}$Li+$^{10}$B elastic scattering and the lithium-induced reaction of one-nucleon transfers from $^{10}$B($^{7}$Li,$^{6}$Li)$^{11}$B

The angular distributions of elastic scattering of $^{7}$Li, as well as the lithium-induced reaction of one-nucleon transfers $^{10}$B($^{7}$Li,$^{6}$Li)$^{11}$B were measured at $E_\text{lab}$ = 58 MeV. Experiment was done using U-400…

Nuclear Experiment · Physics 2024-10-10 Sergey Stukalov , Yuri Sobolev , Yuri Penionzhkevich , Nassurlla Burtebayev , Sergey Goncharov , Yuri Gurov , Andrey Danilov , Alla Demyanova , Sergey Dmitriev , Maulen Nassurlla , Viktar Starastsin , Alexey Shakhov , Semyon Raidun , Nguyen Hoai Chau