Molecular ion recombination in merged beams: experimental results on small systems and future perspectives

This paper discusses the application of the merged-beam technique to the study of dissociative recombination. After a description of the experimental method, attention is turned to H2+ and its isotopomers. The apparent perfect agreement between experiment and theory which seemed to prevail in the early 1990s has had to give way to an agreement which is satisfactory but far from perfect. The consistent set of data for HD+ from merged electron-ion beams in four different ion storage rings is very satisfying, while it is difficult to reconcile single-pass data for H2+ with those from an ion storage ring.

[1]  H. Tanuma,et al.  TMU electrostatic ion storage ring designed for operation at liquid nitrogen temperature , 2004 .

[2]  R. Zubarev,et al.  Dissociative recombination cross section and branching ratios of protonated dimethyl disulfide and N-methylacetamide. , 2004, The Journal of chemical physics.

[3]  M. Larsson,et al.  Absolute high-resolution rate coefficients for dissociative recombination of electrons with HD+: Comparison of results from three heavy-ion storage rings , 2003 .

[4]  L. Pichl,et al.  Vibrational relaxation and dissociative recombination of H{sub 2}{sup +} induced by slow electrons , 2003 .

[5]  K. Noda,et al.  Resonant neutral-particle emission in collisions of electrons with peptide ions in a storage ring. , 2003, Physical review letters.

[6]  S. Nielsen,et al.  Studies of Clusters and Biomolecules in ELISA , 2003 .

[7]  R. Wester,et al.  Electron Induced Vibrational Deexcitation of the Molecular Ions H2+ and D2+ , 2003 .

[8]  S. Guberman.  Dissociative recombination of molecular ions with electrons , 2003 .

[9]  R. Zubarev.  Reactions of polypeptide ions with electrons in the gas phase. , 2003, Mass spectrometry reviews.

[10]  M. Larsson,et al.  Three-body reaction dynamics in electron-ion dissociative recombination , 2001 .

[11]  M. Larsson.  Merged-beams studies of electron-molecular ion interactions in ion storage rings , 2001 .

[12]  K. Noda,et al.  Vibrational cooling of H + 2 and D + 2 in a storage ring studied by means of two-dimensional fragment imaging , 2000 .

[13]  G. Dunn,et al.  Merged-beams experiments in atomic and molecular physics , 1999 .

[14]  W. J. van der Zande,et al.  Dissociative recombination of 3HeH+: comparison of spectra obtained with 100, 10 and 1 meV temperature electron beams , 1998 .

[15]  M. Larsson,et al.  Rotational effects in dissociative recombination: theoretical study of resonant mechanisms and comparison with ion storage ring experiments , 1997 .

[16]  L. H. Andersen,et al.  Dissociative-recombination and excitation measurements with H2+ and HD+ , 1997 .

[17]  F. Kruger,et al.  CP violation in the decay B-->Xde+e- , 1996, hep-ph/9608361.

[18]  Mats Larsson,et al.  Atomic and molecular physics with ion storage rings , 1995 .

[19]  Honma,et al.  Dissociative recombination of HD+ with an ultracold electron beam in a cooler ring. , 1995, Physical review letters.

[20]  Carlson,et al.  High-resolution, low-energy dissociative recombination spectrum of H3eH+ , 1995, Physical review letters.

[21]  Carlson,et al.  Direct dissociative recombination of ground-state HeH+ , 1994, Physical review. A, Atomic, molecular, and optical physics.

[22]  Nilsson,et al.  Electron cooling with an ultracold electron beam. , 1994, Physical review letters.

[23]  Mitchell,et al.  Dissociative recombination of HeH+: A reexamination. , 1994, Physical review. A, Atomic, molecular, and optical physics.

[24]  H. Takagi.  Rotational effects in the dissociative recombination process of H2++e , 1993 .

[25]  O. Dulieu,et al.  Recent Developments and Perspectives in the Treatment of Dissociative Recombination and Related Processes , 1993 .

[26]  A. Noda,et al.  Electron cooling experiments at INS , 1991 .

[27]  A. P. Hickman,et al.  Dissociative recombination of H sub 2 sup , 1991 .

[28]  Geng.  Remarks on charge quantization of fermions and bosons. , 1990, Physical Review D, Particles and fields.

[29]  Andersen,et al.  Radiative recombination between free electrons and bare carbon ions. , 1990, Physical review letters.

[30]  Andersen,et al.  State-selective dielectronic-recombination measurements for He-like oxygen ions in an electron cooler. , 1989, Physical review letters.

[31]  Miller,et al.  Dielectronic recombination measurements of P4+, S5+, and Cl6+ , 1986, Physical review. A, General physics.

[32]  J. Mitchell,et al.  2 – Electron–Molecular Positive-Ion Recombination , 1984 .

[33]  P. Mul,et al.  Merged electron-ion beam experiments. III. Temperature dependence of dissociative recombination for atmospheric ions NO+, O2+ and N2+ , 1979 .

[34]  D. Auerbach,et al.  Merged electron-ion beam experiments. I. Method and measurements of (e-H2+) and (e-H3+) dissociative-recombination cross sections , 1977 .

[35]  B. Peart,et al.  Collisions between electrons and ions , 1976 .

[36]  R. Caudano,et al.  Detailed study of recombination: The importance of the Rydberg state in electron-H/sub 2//sup +/ recombination. [0. 01 to 4 eV] , 1976 .

[37]  D. Gerlich,et al.  Integral cross sections for ion—molecule reactions. I. The guided beam technique , 1974 .