Browsing by Author "Trache, L."

Now showing items 21-40 of 50

    • Determination of the direct capture contribution for N-13(p,gamma)O-14 from the O-14 -> N-13+p asymptotic normalization coefficient 
      Tang, XD; Azhari, A.; Fu, CB; Gagliardi, Carl A.; Mukhamedzhanov, AM; Pirlepesov, F.; Trache, L.; Tribble, Robert E.; Burjan, V.; Kroha, V.; Carstoiu, F.; Irgaziev, BF. (American Physical Society, 2004)
      N-13(p, gamma)O-14 is one of the key reactions which trigger the onset of the hot CNO cycle. This transition occurs when the proton capture rate on 13N is faster, due to increasing stellar temperature (greater than or equal ...
    • Determination of the S-18 astrophysical factor for B-8(p,gamma)C-9 from the breakup of C-9 at intermediate energies 
      Trache, L.; Carstoiu, F.; Mukhamedzhanov, AM; Tribble, Robert E. (American Physical Society, 2002)
      We have used existing data on the one-proton-removal cross section of C-9 at 285 MeV/nucleon and Glauber model calculations to extract the asymptotic normalization coefficient for the wave function of the last proton in ...
    • Elastic scattering of the proton drip-line nucleus F-17 
      Blackmon, JC; Carstoiu, F.; Trache, L.; Bardayan, DW; Brune, CR; Gagliardi, Carl A.; Greife, U.; Gross, CJ; Jewett, CC; Kozub, R. L.; Lewis, TA; Liang, JF; Moazen, BH; Mukhamedzhanov, AM; Nesaraja, CD; Nunes, FM; Parker, PD; Sahin, L.; Scott, JP; Shapira, D.; Smith, MS; Thomas, JS; Tribble, Robert E. (American Physical Society, 2005)
      Precision data have been obtained for the elastic scattering of F-17 on C-12 and N-14 at 10 MeV/nucleon to clarify the reaction mechanism for loosely bound nuclei at low energies and to assess the validity of a double-folding ...
    • Enhanced Production of Neutron-Rich Rare Isotopes in Peripheral Collisions at Fermi Energies 
      Souliotis, G. A.; Veselsky, M.; Chubarian, G.; Trache, L.; Keksis, A.; Martin, E.; Shetty, D. V.; Yennello, S. J. (Physical Review Letters, 2003)
    • Experimental study of beta-delayed proton decay of (23)Al for nucleosynthesis in novae 
      Saastamoinen, A.; Trache, L.; Banu, A.; Bentley, M. A.; Davinson, T.; Hardy, John C.; Iacob, V. E.; McCleskey, M.; Roeder, B. T.; Simmons, E.; Tabacaru, G.; Tribble, Robert E.; Woods, P. J.; Aysto, J. (American Physical Society, 2011)
      The beta-delayed gamma and proton decay of (23)Al has been studied with an alternative detector setup at the focal plane of the momentum achromat recoil separator MARS at Texas AandM University. We could detect protons ...
    • Experimental Validation of the Largest Calculated Isospin-Symmetry-Breaking Effect in a Superallowed Fermi Decay 
      Melconian, D.; Triambak, S.; Bordeanu, C.; García, A.; Hardy, J. C.; Iacob, V. E.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Towner, I. S.; Tribble, R. E.; Zhai, Y. (Physical Review Letters, 2011)
    • First observation of alpha-cluster states in the (14)O+(4)He interaction 
      Fu, Changbo; Goldberg, V. Z.; Rogachev, G. V.; Tabacaru, G.; Chubarian, G. G.; Skorodumov, B.; McCleskey, M.; Zhai, Y.; Al-Abdullah, T.; Trache, L.; Tribble, Robert E. (American Physical Society, 2008)
      We measured (14)O+(4)He excitation functions for elastic scattering which demonstrate, for the first time, a well developed alpha-cluster structure in the proton rich nucleus, (18)Ne. We present the excitation energies and ...
    • l-forbidden Gamow-Teller beta decay of Cu-57 
      Semon, D. R.; Allen, MC; Dejbakhsh, H.; Gagliardi, Carl A.; Hale, SE; Jiang, J.; Trache, L.; Tribble, Robert E.; Yennello, SJ; Xu, HM; Zhou, XG; Brown, BA. (American Physical Society, 1996)
      Absolute branching ratios for the beta decay of Cu-57 to excited states up to 3.3 MeV in Ni-57 have been determined, including the rho-forbidden Gamow-Teller transition to the first excited state in Ni-57. Four transitions ...
    • Low-lying levels in Cu-57 and the rp process 
      Zhou, XG; Dejbakhsh, H.; Gagliardi, Carl A.; Jiang, J.; Trache, L.; Tribble, Robert E. (American Physical Society, 1996)
      The level scheme of Cu-57 is investigated via the H-1(Ni-58,Cu-57-gamma)2n reaction by using the recoil mass spectrometer MARS at the Texas AandM Cyclotron Institute. Three low-lying excited states are observed in Cu-57 ...
    • Low-lying levels in F-15 and the shell model potential for drip-line nuclei 
      Goldberg, VZ; Chubarian, GG; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Aprahamian, A.; Rogachev, GV; Skorodumov, BB; Tang, XD. (American Physical Society, 2004)
      The ground and first excited states in F-15 were studied in resonant elastic scattering using the thick (CH4) gas target method in inverse kinematics with a separated O-14 beam. An analysis of the excitation functions of ...
    • The N-14(Be-7,B-8)C-13 reaction and the Be-7(p,gamma)B-8 S factor 
      Azhari, A.; Burjan, V.; Carstoiu, F.; Gagliardi, Carl A.; Kroha, V.; Mukhamedzhanov, AM; Tang, X.; Trache, L.; Tribble, Robert E. (American Physical Society, 1999)
      The N-14(Be-7,B-8)C-13 reaction was studied using an 85 MeV Be-7 radioactive beam. The asymptotic normalization coefficients for the virtual transitions Be-7+pB-8 were determined from the measured cross section. These ...
    • New astrophysical S factor for the (15)N(p,gamma)(16)O reaction via the asymptotic normalization coefficient (ANC) method 
      Mukhamedzhanov, A. M.; Bem, P.; Burjan, V.; Gagliardi, Carl A.; Goldberg, V. Z.; Hons, Z.; La Cognata, M.; Kroha, V.; Mrazek, J.; Novak, J.; Piskor, S.; Pizzone, R. G.; Plunkett, A.; Romano, S.; Simeckova, E.; Spitaleri, C.; Trache, L.; Tribble, Robert E.; Vesely, F.; Vincour, J. (American Physical Society, 2008)
      The (15)N(p,gamma)(16)O reaction provides a path from the CN cycle to the CNO bi-cycle and CNO tri-cycle. The measured astrophysical factor for this reaction is dominated by resonant capture through two strong J(pi) = 1(-) ...
    • One-proton breakup of 24 Si and the 23 Al( p , γ ) 24 Si reaction in type I x-ray bursts 
      Banu, A.; Carstoiu, F.; Achouri, N. L.; Catford, W. N.; Chartier, M.; Fernández-Domínguez, B.; Horoi, M.; Laurent, B.; Orr, N. A.; Paschalis, S.; Patterson, N.; Pietras, B.; Roeder, B. T.; Roussel-Chomaz, P.; Thomas, J. S.; Trache, L.; Tribble, R. E. (Physical Review C - Nuclear Physics, 2012)
    • Optical model potentials involving loosely bound p-shell nuclei around 10 MeV/nucleon 
      Trache, L.; Azhari, A.; Clark, HL; Gagliardi, Carl A.; Lui, YW; Mukhamedzhanov, AM; Tribble, Robert E.; Carstoiu, F. (American Physical Society, 2000)
      We present the results of a search for optical model potentials for use in the description of elastic scattering and transfer reactions involving stable and radioactive p-shell nuclei. This was done in connection with our ...
    • Peripheral elastic and inelastic scattering of O 17 , 18 on light targets at 12 MeV/nucleon 
      Al-Abdullah, T.; Carstoiu, F.; Gagliardi, C. A.; Tabacaru, G.; Trache, L.; Tribble, R. E. (Physical Review C - Nuclear Physics, 2014)
    • Precise half-life measurement of the superallowed beta(+) emitter (10)C 
      Iacob, V. E.; Hardy, John C.; Golovko, V.; Goodwin, J.; Nica, N.; Park, H. I.; Trache, L.; Tribble, Robert E. (American Physical Society, 2008)
      The half-life of (10)C has been measured to be 19.310(4) s, a result with 0.02% precision, which is a factor of three improvement over the best previous result. Since (10)C is the lightest superallowed 0(+)-> 0(+) beta(+) ...
    • Precise half-life measurement of the superallowed beta(+) emitter (26)Si 
      Iacob, V. E.; Hardy, John C.; Banu, A.; Chen, L.; Golovko, V. V.; Goodwin, J.; Horvat, V.; Nica, N.; Park, H. I.; Trache, L.; Tribble, Robert E. (American Physical Society, 2010)
      We measured the half-life of the superallowed 0(+) -> 0(+) beta(+) emitter (26)Si to be 2245.3(7) ms. We used pure sources of (26)Si and employed a high-efficiency gas counter, whichwas sensitive to positrons from both ...
    • Precise half-life measurement of the superallowed β + emitter 46 V 
      Park, H. I.; Hardy, J. C.; Iacob, V. E.; Chen, L.; Goodwin, J.; Nica, N.; Simmons, E.; Trache, L.; Tribble, R. E. (Physical Review C - Nuclear Physics, 2012)
    • Precise half-life measurements for the superallowed beta(+) emitters Ar-34 and Cl-34 
      Iacob, V. E.; Hardy, John C.; Brinkley, J. F.; Gagliardi, Carl A.; Mayes, V. E.; Nica, N.; Sanchez-Vega, M.; Tabacaru, G.; Trache, L.; Tribble, Robert E. (American Physical Society, 2006)
      To contribute meaningfully to any test of the unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) matrix, the measured ft value of a superallowed 0(+)-> 0(+) beta(+) transition must be obtained to a precision of 0.1% or better. ...
    • Publisher's note: Branching ratios for the beta decay of Na-21 (vol 74, pg 015501, 2006) 
      Iacob, V. E.; Hardy, John C.; Gagliardi, Carl A.; Goodwin, J.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Zhai, Y.; Towner, I. S. (American Physical Society, 2006)