780 research outputs found
Correction to: Using Aliphatic Alcohols to Tune Benzene Adsorption in MAF-6 (Advanced Theory and Simulations, (2019), 2, 11, (1900112), 10.1002/adts.201900112)
No full textAdv. Theory Simul., 2019, 2, 1900112 This paper was incorrectly published with only Sofia Calero as corresponding author. Both Juan Jose Gutierrez-Sevillano and Sofia Calero are corresponding authors of this paper. The correct affiliations are therefore reproduced below. Dr. A. Martin-Calvo, Dr. J. J. Gutierrez-Sevillano, Prof. S. Calero Department of Physical, Chemical and Natural Systems University Pablo de Olavide Sevilla 41013, Spain E-mail: [email protected]; [email protected] Dr. D. Dubbeldam Van't Hoff Institute for Molecular Sciences University of Amsterdam Amsterdam 1090 GD, The Netherlands
Intense femtosecond laser interactions with ions in beams and traps
No full textEThOS - Electronic Theses Online ServiceGBUnited Kingdo
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
No full textThis Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±0.04(syst) and CJ/ψK0S=0.03±0.09(stat)±0.01(syst). Both values are consistent with the current world averages and within
expectations from the Standard Model
Measurement of the CP-violating phase \phi s in Bs->J/\psi\pi+\pi- decays
No full textMeasurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ pi- are selected in 1/fb of pp collision data collected at sqrt{s} = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of phi_s=-0.019^{+0.173+0.004}_{-0.174-0.003} rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found
Effect of water temperature and flow rate on the transmission of microsporidial gill disease caused by Loma salmonae in rainbow trout Oncorhynchus mykiss
No full textTwo studies were designed to quantify the effect of water temperature and flow rate on the transmission potential of the important salmonid gill pathogen, Loma salmonae. Using survival analysis, increased water temperature and low flow rates were determined as risk factors for the transmission of microsporidial gill disease caused by L. salmonae in rainbow trout Oncorhynchus mykiss. Fish were experimentally infected with L. salmonae via a cohabitation exposure model and monitored for the development of branchial xenomas. On any given day, fish held at 11degreesC and 15degreesC had a hazard ratio equal to 0.80 and 0.68, respectively, for the development of branchial xenomas compared with fish held at 19degreesC. From the flow rate trial, fish housed in a low flow tank (0.83 L/min) had an increased chance of developing branchial xenomas when compared to fish in tanks at normal (1.67 L/min) and high (2.5 L/min) flow rates with hazard ratios reported as 0.69.PT: J; CR: BARKER DE, 2000, AQUACULTURE, V187, P261 BEAMAN HJ, 1998, THESIS U PRINCE EDWA BEAMAN HJ, 1999, J AQUAT ANIM HEALTH, V11, P237 BEBAKWILLIAMS J, 2002, J FISH DIS, V25, P715 BECKER JA, 2002, J FISH DIS, V25, P673 BODENSTEINER LR, 2000, J AQUAT ANIM HEALTH, V12, P209 CLEVES MA, 2002, INTRO SURVIVAL ANAL GEORGIADIS MP, 2001, PREV VET MED, V48, P287 GUTIERREZ RG, 2002, STATA J, V1, P22 HEDRICK RP, 1998, J AQUAT ANIM HEALTH, V10, P107 KENT ML, 1995, CAN VET J, V36, P98 KLEINBAUM DG, 1986, SURVIVAL ANAL SELF L, P4 MAGOR BG, 1987, CAN J ZOOL, V65, P751 PENNELL W, 1996, PRINCIPLES SALMONID RAMSAY JM, 2001, J FISH DIS, V24, P453 RENO PW, 1998, J AQUAT ANIM HEALTH, V10, P160 ROSS RM, 1995, AQUACULT ENG, V14, P29 SEDGWICK SD, 1990, TROUT FARMING HDB SHAW RW, 1998, DIS AQUAT ORGAN, V33, P151 SHAW RW, 2000, DIS AQUAT ORGAN, V43, P49 SPEARE DJ, 1998, CONTEMP TOP LAB ANIM, V37, P55 SPEARE DJ, 1998, J FISH DIS, V21, P345 SPEARE DJ, 1998, J FISH DIS, V21, P93 SPEARE DJ, 1999, J FISH DIS, V22, P277; NR: 24; TC: 6; J9: FISH PATHOL; PG: 8; GA: 815FNSource type: Electronic(1
Measurement of the branching fraction
No full textThe B
0
s
→ J/ψK
0
S
branching fraction is measured in a data sample corresponding to 0.41 fb−1
of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to
the penguin contributions affecting the sin 2β measurement from B
0
→ J/ψK
0
S
. The time-integrated
branching fraction is measured to be B(B
0
s
→ J/ψK
0
S
) = (1.83±0.28)×10−5
. This is the most precise
measurement to date
Observation of J/ψ-pair production in pp collisions at √s=7 TeV
No full textThe production of J/ψ pairs in proton–proton collisions at a centre-of-mass energy of 7 TeV has been observed using an integrated luminosity of 37.5 pb−1 collected with the LHCb detector. The production cross-section for pairs with both J/ψ in the rapidity range 2 < yJ/ψ < 4.5 and transverse momentum pJ/ψ T <10 GeV/c is σJ/ψJ/ψ =5.1±1.0±1.1 nb, where the first uncertainty is statistical and the second systematic
Measurement of the B0–B0 oscillation frequency Δmd with the decays B0→D−π+ and B0→ J/ψK∗0
No full textThe B
0
–B
0
oscillation frequency Δmd is measured by the LHCb experiment using a dataset corresponding
to an integrated luminosity of 1.0 fb−1
of proton–proton collisions at √
s = 7 TeV, and is found to be
Δmd
=0.5156±0.0051 (stat.)±0.0033 (syst.) ps−1
. The measurement is based on results from analyses
of the decays B
0
→ D
−π
+ (D
−
→ K
+π
−π
−) and B
0
→ J/ψK
∗0
(J/ψ →μ
+μ
−,K
∗0
→ K
+π
−) and
their charge conjugated modes
- …
