Message-Id: <200110150021.JAA10796@neutrino.kek.jp> To: seki@neutrino.kek.jp Cc: opc.nuint01 Subject: Re: benchmark calc. listing Date: Mon, 15 Oct 2001 09:21:56 +0900 From: Makoto Sakuda <sakuda@neutrino.kek.jp> Dear Seki_san, Suzuki, Nakamura, Hayato and Itow are in Hawaii for SK collaboration meeting (Oct.14-15), and you may not receive any e-mails. (They valued the US government's statement, "We should continue to do the routine businesses or ordinary way of living and not be afraid." Or they simply liked Hawaii very much.) Your draft looks fine. Ishida will show it in HP. You can make a correction at any time. Regards, Makoto Sakuda > Date: Mon, 15 Oct 2001 08:16:30 +0900 (JST) > From: seki@neutrino.kek.jp > Reply-To: seki@neutrino.kek.jp > To: opc.nuint01@neutrino.kek.jp > Subject: benchmark calc. listing > > Folks, > The following is my final version of the benchmark calculation listing, > with the inclusion of the comments from Hayato san, Dave, and Sakuda san. > > Please check it for the last time and give me your comments and > suggestions asap. If I do not hear from you, I will give this to Ishida > san for posting in the NuInt01 HP. Note that there will be a figure > added, for specifying \theta_\mu and \theta_p. > > Best wishes, > Seki > > p.s. RIKEN has decided to cancel its members' attendance at the Hawaii > US/Japan nuclear physics meeting next week. Is KEK going to do the same? > > ***************************************** > > Benchmark MC and Theoretical Calculations of $\nu_\mu$ Reactions > > *WARNING: > 1) You are not required to do all benchmark calculations listed > below, but please try to do as many as possible. Any number > of the calculations and any portion of the calculations are > acceptable. For example, showing the quasi-elastic contibution > alone is acceptable for the benchmark calculation 1, if you are > not set up to calculate the entire inclusive cross section. > 2) Use the parameter values specified below, and do NOT use your > favorite values even if you consider yours to be better. > The objective of the benchmark calculations is a calibration > of the instruments, your MC codes and theoretical methods, and > the use of the common parameter values is thus vital. > > *GUIDELINES: > 1) Make the binning size as small as possible. > 2) Draw straight plots (neither semi-log, nor log plots, > unless specified). > 3) Use the neutrino-nucleon cross section as specified below. > > > > *BENCHMARK CALCULATION LISTING: > 1) 16O(\nu_\mu,\mu^-) Inclusive. > (Relevant to Panel Discussions 1 and 2) > > MAIN:(Three figures) > {d^2\sigma}/{4\pi d(\cos\theta_\mu)d E_\mu} > at theta_\mu = 30{}^o for E_\nu = 0.5, 1.0, and 5.0 GeV > as a function of $E_\nu - E_\mu$ from 0 to 500 MeV, > also showing a curve for the quasi-elastic contribution > in each figure. > (Please draw semi-log plots for 5.0 GeV.) > SUPPLEMENTAL: > a. (Three figures) > {d\sigma}/{d E_\mu} for E_\nu = 0.5, 1.0, and 5.0 GeV > as a function of E_\mu from 0 to 1.0 GeV, > also showing a curve for the quasi-elastic contribution > in each figure. > b. (Three figures) > {d\sigma}/{4\pi d(\cos\theta_\mu)} > for E_\nu = 1.0 and 2.0 GeV > as a function of cos(\theta_\mu) from 1 to -1, > also showing a curve for the quasi-elastic contribution > in each figure. > > > 2) 16O(\nu_\mu,\mu^-p) Semi-inclusive. > (Relevant to Panel Discussions 1 and 2) > > a. (Two figures) > {d\sigma}/{d^3p_p} (\vec{k}_\mu integrated) > at \theta_p =60^o for E_\nu = 1.0 and 2.0 GeV > as a function of |\vec{p}_p| from 0 to 500 MeV/c, > also showing a curve for the quasi-elastic contribution > in each figure. > b. (Two figures) > {d\sigma}/{d^3p_p} (vec{k}_\mu integrated) > at |\vec{p}_p|= 500 MeV for E_\nu = 1.0 and 2.0 GeV > as a function of \theta_p from 0 to 90^o, > also showing a curve for the quasi-elastic contribution > in each figure. > > > 3) 16O and/or 56Fe Pion production > (Relevant to Panel Discussion 3) > (The number of the figures indicated below > is for each of 16O and 56Fe) > MAIN: > a. [Two figures = 1 fig.(for nucleus) + 1 fig.(for n)] > Pion multiplicity > as a function of E_\nu from 0.5 GeV to 5.0 GeV > for \nu_\mu - nucleus and -neutron reactions. > b. [Two figures = 1 fig.(for nucleus) + 1 fig.(for n)] > Average pion energy (per pion) > as a function of E_\nu from 0.5 GeV to 5.0 GeV > for \nu_\mu - nucleus and -neutron reactions. > SUPPLEMENTAL: > a. [Eight figures = 2 figs. (for nucleus and n) > x 2 figs. (for the directiuon and magnitude) > x 2 figs. (30 MeV/c and 50 MeV/c cut-off)] > Hadron emission momentm vector (direction and magnitude) > as a function of E_\nu from 0.5 GeV to 5.0 GeV > for \nu_\mu - nucleus and neutron. > (The vector is defined to be the weighted average of > all emitted hadron (nucleons and mesons) momenta > above the 30 MeV/c and 50 MeV/c cut-offs.) > b. (Twelve numbers) > The above MAIN a. and b. and SUPPLEMENTAL a. at 10 GeV/c. > > > > *\nu - Neutron cross section parameters > > 1) G_F cos(\theta_c) = 1.14 x 10^{-5} GeV^{-2} > > 2) M_V^2 = 0.71 GeV^2 > > 3) g_A = -1.26 > > 4) M_A = 1.03 GeV. > > 5) 1 + \mu_p -\mu_n = 4.71 (nuclear magneton) > > Also set F_p(q) = 0. > > The neutrino-neutron cross section {d\sigma}/dt is given by, e.g., > C. H. Llewellyn Smith, Physics Report 3, no. 5 (1972) pp300-, > Subsection 3.3 -A & B. >
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