B Meson Lifetime: Exploring B-Tagging & Decay - Physics Forums
Oct 22, 2020 · B-tagging is more general, it's including all methods to detect that there was a B meson (and often it's also detecting the type, i.e. bottom or anti-bottom quark). Collisions often produce pairs of b quarks which then fly away individually.
Decoding the Notation: Understanding B Meson Decay Amplitude …
Dec 18, 2011 · The decay amplitude of B mesons refers to the mathematical quantity that describes the probability of a B meson decaying into specific particles. It takes into account the properties of the particles involved and the interaction between them.
B meson from proton antiproton collision - Physics Forums
Jan 15, 2010 · An electron-volt is a unit of energy, so the rest energy of a B meson is 5.28 GeV, not 5.28 GeV*c^2. The mass of the B meson could be written as 5.28 GeV/c^2, but you don't generally plug a value in for c. You just leave it as c. Also, remember that the question asked you for the kinetic energy of the proton, not the proton-antiproton pair.
Angle between Decay Products of B+ Meson? - Physics Forums
Mar 31, 2008 · In summary, the problem is to find the angle between the products of a Meson B+ decay at J/ψ and K+, with a given momentum of 5GeV in the lab frame. To solve this, the conservation of momentum and energy equations must be used, as well as trigonometric identities to relate the momentum components in the lab frame to the center of mass frame.
Electron and positron collision producing a b0 meson pair
Jan 9, 2020 · Electrons and positrons collide head-on with beam energies 9GeV and E respectively, producing B0 and anti-B0 mesons at the threshold energy. The B0 mesons undergo decay with a mean proper lifetime of 1.5 × 10−12 s. Calculate the mean distance that the B0 mesons travel before decay, as observed in the rest frame of the laboratory.
BR of semileptonic B meson decay - Physics Forums
Mar 16, 2015 · The BR of semileptonic B meson decay is an important parameter in understanding the behavior of B mesons, which are fundamental particles in the Standard Model of particle physics. It also helps to test the predictions of the theory and provides insight into the fundamental interactions between particles.
Special Rel Colliding Particles Problem - Physics Forums
Dec 29, 2007 · An electron of energy 9.0 GeV and a positron of energy E collide head on to produce a B meson and an anti B meson (B nought mesons), each with a mass of 5.3 GeV/c^2 . What is the minimum positron energy required to produce the B Meson pair? (You may neglect the rest mass energies of the electron and the positron). Homework Equations
Inclusive/Exclusive measurement of B-mesons - Physics Forums
Jul 10, 2015 · "Inclusive B meson" => there was at least one B-meson, the decay channel and possible other particles do not matter. The measurement method will depend on the detector. "Exclusive" => needs more specification what got measured. Probably a specific decay channel.
Particle Physics: Why are Mesons a type of Gauge Boson?
Sep 24, 2011 · All gauge bosons are bosons. Mesons are all bosons because they're two-quark combinations, quarks have spin 1/2, and two spin 1/2 particles can combine to give only total spin 0 or 1. Baryons are all fermions because they're three-quark combinations and three spin 1/2 particles can give only total spin 1/2, 3/2, etc. Sep 24, 2011.
Lightest Vector Meson Mass for Bottom Quarks and Antiquarks
Jul 27, 2017 · 2. What is the lightest vector meson mass for bottom quarks and antiquarks? The lightest vector meson mass for bottom quarks and antiquarks is known as the Upsilon particle. It has a mass of approximately 9.46 GeV/c^2, which is about 9.5 times the mass of a proton. 3. How is the mass of a vector meson determined?