Inclusice & Exclusive processes?

  • Thread starter Thread starter ansgar
  • Start date Start date
ansgar
Messages
514
Reaction score
1
Dear all,

I have encountered many times in litterature phrases "Inclusice process/ cross section" and exclusive dito.

What does all of this mean?

Greetings
 
Physics news on Phys.org
Greeting,

it is perhaps easier to define an exclusive process : all particles in the final state are measured/detected/known. The prototype of inclusive process is deep inelastic scattering, for which one measures only the recoiling lepton off a nucleon, and sums over all possible hadronic final states.

Note that there are semi-inclusive processes, whereupon one will measure in addition another. For instance in semi-inclusive DIS, in addition to the lepton one detects another recoiling particle, such as (say for instance) a pion.

Finally, let me note that in exclusive processes, one may not actually detect one of the particles, but constraint kinematically the other particles in such a manner to ensure the only possible undetected recoil to be known.
 
Thread 'Why is there such a difference between the total cross-section data? (simulation vs. experiment)'

Thread 'Why is there such a difference between the total cross-section data? (simulation vs. experiment)'

Well, I'm simulating a neutron-proton scattering phase shift. The equation that I solve numerically is the Phase function method and is $$ \frac{d}{dr}[\delta_{i+1}] = \frac{2\mu}{\hbar^2}\frac{V(r)}{k^2}\sin(kr + \delta_i)$$ ##\delta_i## is the phase shift for triplet and singlet state, ##\mu## is the reduced mass for neutron-proton, ##k=\sqrt{2\mu E_{cm}/\hbar^2}## is the wave number and ##V(r)## is the potential of interaction like Yukawa, Wood-Saxon, Square well potential, etc. I first...
View full post »

Thread 'Toponium Discovered'

Toponium is a hadron which is the bound state of a valance top quark and a valance antitop quark. Oversimplified presentations often state that top quarks don't form hadrons, because they decay to bottom quarks extremely rapidly after they are created, leaving no time to form a hadron. And, the vast majority of the time, this is true. But, the lifetime of a top quark is only an average lifetime. Sometimes it decays faster and sometimes it decays slower. In the highly improbable case that...
View full post »

Thread 'Dirac-Delta from Normalization of Continuous Eigenfunctions'

I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...
View full post »

Similar threads

A Why does the cross section for Dark Matter decrease with increasing mass?
Replies
7
Views
2K
Comp Sci How to test progress and bounded waiting in Peterson's algorithm?
Replies
2
Views
2K
I Uncertainty of histogram bins from MC-simulation
Replies
7
Views
3K
Exclusive measurements at the lhc
Replies
3
Views
1K
I Why no higher derivative in physics?
Replies
31
Views
6K
Inclusive/Exclusive measurement of B-mesons
Replies
4
Views
2K
I Why is there such a difference between the total cross-section data? (simulation vs. experiment)
Replies
1
Views
71
A The fractional energy loss of charged particle per radiation length
Replies
1
Views
2K
I Calculating Cross Section for ZZ* to Electrons/Muons: Issues & Solutions
Replies
9
Views
2K
I Understanding Nuclear Fusion Cross Section Diagrams
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top