1. HBr, F 1  2, v´=1 <-<- X spectrum agust,www,....June11/PPT-091211ak.ppt agust, heima,...June11/HBr 79040_80120-091211.pxp H + REMPI:

2. agust, heima,...June11/HBr 79040_80120-091211.pxp; Lay:0, Gr: 2 48 cm-1 54 cm-1 (H;O, J´=6 (?)) F(v´=1);R, J´=6 (?) Peak enhanced because of F V interaction J´= 3 V,v´=m+7)(?) J´=5 J´=6 J´=7 ? ? ? J´=2 J´=4 There seems to be another sharp line serie here: COULD it be H + from HCl Impurity? (Please check) J´=1&0

3. Comments: The peak assignments above for V(v´=m+7) suggests: 1)– that bandwidth changes as J´= 3 7 2) - that intensity changes as J´= 3 > 4 > 5 < 6 < 7 Judging from Helgi´s H + REMPI spectrum (https://notendur.hi.is/agust/rannsoknir/rempi/hbr/Jan11/Thesis-Helgi-jun11.pdf ;https://notendur.hi.is/agust/rannsoknir/rempi/hbr/Jan11/Thesis-Helgi-jun11.pdf p: 35, see also slide 4, below), furthermore: 1)– that bandwidth changes as J´= 3 7 > 8 > 9, i.e. it reaches maximum due to the interaction F(v´= 1; J´= 6) V(v´=m+7) WHY?! (see idea below)

4. J´= 9876543......... From https://notendur.hi.is/agust/rannsoknir/rempi/hbr/Jan11/Thesis-Helgi-jun11.pdf

5. FV J´  6 small / negligible interaction Br+  E big Ion signal broad  E small HBr+ Ion signal narrow  (lifetime) small / rate (=1/t) big for dissociation and/or/via interactions with other Rydberg states

6. FV J´ = 6 Significant (large) interaction Br+  E big Ion signal broad  E small HBr+ Ion signal narrow  (lifetime) small / rate (=1/  ) big for dissociation and/or/via interactions with other Rydberg states  i (interaction) nonzero rate (=1/  i ) significant Rate of {H + Br - } disappearance = 1/  + 1/  i

7. FV J´ = 6 Significant (large) interaction Br+  E big Ion signal broad  E still small HBr+ Ion signal narrow  (lifetime) small / rate (=1/  ) big for dissociation and/or/via interactions with other Rydberg states  i (interaction) nonzero rate (=1/  i ) significant Rate of {H + Br - } disappearance = 1/  + 1/  i Rate of HBr ** disappearance = 1/  i NB!: change in BW not detectable ii